USER INSTRUCTIONS - Flowserve Corporation

USER INSTRUCTIONS
Limitorque MX
Electronic Actuator
FCD LMENIM2314-00 – 07/08
Experience In Motion
Maintenance
and Spare Parts
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
Contents
1 Introduction
1.1 Premise
1.2 Procedure Emphasis 1.3 Important Notes and Warning Statements 1.4 Reference Documents
2MX Actuator Subassembly 2.1 MX Actuator Subassembly Components
2.1.1 Product Description
2.1.2 Storage
2.1.3 Unit Weights
2.2 Product Identification 2.2.1 Initial Inspection and Recording Suggestions
2.3 Maintenance
2.3.1 Recommended Maintenance
2.3.2 Unit Lubrication
2.3.3 O-Ring and Lubrication
2.4 Subassembly Removal and Remounting Procedures 2.5 How to Order Replacement Subassemblies
2.5.1 Replacement Parts
2.5.2 Return Procedure
3Remove Actuator from Mounting Adapter
3.1 Actuator Removal with Type B1/B4/B4E Base (Torque)
3.1.1 Removal (Type B1/B4/B4E Base)
3.1.2 Remounting (Type B1/B4/B4E Base)
3.2 Actuator Removal with Type A1/A1E Base (Thrust)
3.2.1 Removal (Type A1/A1E Base) Actuator Removal Separate from Thrust Base
3.2.2 Remounting (Type A1/A1E Base) Actuator Remounting Separate from Thrust Base
3.2.3 Removal (Type A1/A1E Base) Actuator and Thrust Base as a Unit
3.2.4 Remounting (Type A1/A1E Base) Actuator and Thrust Base as a Unit
4 Mechanical Assemblies
4.1 Motor
4.1.1 Removal
4.1.2 Remounting
4.1.3 Removal and mounting of MX-140 motor (40 RPM and greater)
4.1.4 Remounting 4.1.5 Mounting of MX-150 motor 4.2 Declutch
4.2.1 Removal
4.2.2 Remounting
4.3 Top-Mounted Handwheel (MX-05, -10, -20, and -40)
4.3.1 Removal
4.3.2 Remounting
4.4 Side-Mounted Handwheel Without Spur Gear Attachment (MX-10, -20, -85, -140, and -150)
4.4.1 Side-Mounted Handwheel Without Spur Gear Attachment (MX-85, -140, and -150)
4.4.2 Removal of Side-Mounted Handwheel (MX-10, -20, -85, -140, and -150)
4.4.3 Removal
4.4.4 Remounting
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.5 Side-Mounted Handwheel With Spur Gear Attachment (MX-40, -85, -140, and -150)
4.5.1 MX-85, -140, and -150 Handwheel with SGA
4.5.2 Removal of Handwheel
4.5.3 Removal
4.5.4 Remounting
4.6 Converting Top-Mounted Handwheel to Side-Mounted Handwheel (MX-10, -20, and -40)
4.6.1 Removing Top-Mounted Handwheel
4.6.2 Installing Side-Mounted Handwheel
4.7 Thrust Base Type A1/A1E
4.7.1 Removal
4.7.2 Remounting
4.8 Torque Base Type B1
4.8.1 Removal
4.8.2 Remounting
4.9 Baseplate Type B4
4.9.1 Removal
4.9.2 Remounting
4.10 Worm Shaft
4.10.1 Removal
4.10.2 Remounting
4.11 Drive Sleeve (MX-05 and -10)
4.11.1 Removal
4.11.2 Remounting
4.12 Drive Sleeve (MX-20, -40, -85, -140, and -150)
4.12.1 Removal
4.12.2 Remounting
4.12.3 MX-85, -140, and -150 Optional Drive Sleeve and Baseplate Removal
4.12.4 MX-85, -140, and -150 Optional Drive Sleeve and Baseplate Remounting
4.13 Handwheel Adapter (MX-05)
4.13.1 Removal
4.13.2 Remounting
4.14 Handwheel Adapter (MX-10, -20 and -40)/Handwheel Worm Gear (MX-10, -20, -40, -85, -140, and -150)
4.14.1 Removal
4.14.2 Remounting
4.15 Clutch and Clutch Ring Components (MX-20, -40, -85, -140, and -150)
4.15.1 Removal
4.15.2 Remounting
5Electronic Assemblies
5.1 Control Panel (CP) 5.2 Control Module
5.2.1 Removal
5.2.2 Remounting
5.2.3 Fuse Replacement
5.2.4 Control Module Return Options
5.2.5 EPROM Care and Replacement
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
5.3 Installation and Removal of SMT Controls
(most units supplied after September 2003 and before September 2007)
5.3.1 Installation 5.3.2 Removal 5.3.3 Fuse Replacement
5.3.4 Control Module Return Options
5.4 Mounting of SMT Controls with 54-point terminal block and four LED configuration
(some units supplied from December 2006 with majority after September 2007)
5.4.1 Installation
5.4.2 Removal
5.5 Mounting of Standard and Optional Controls with 54-point terminal block and four LED configuration
5.5.1 Installation
5.5.2 Removal
5.6 Adding Electronic Options to Your MX Actuator(Most Supplied After September 2007)
5.7 Restoring Power to Actuator with New Control Module
5.8 Terminal Block (prior to March 2007)
5.8.1 Removal
5.8.2 Remounting
5.9 MX Terminal Block (Supplied With Most Actuators Since March 2007)
5.9.1 Terminal Block Shield Installation
5.10 Control Module-Contactor Assembly (Not required for most actuators shipped after September 2007.
Please see Section 5.4 for power board installation with contactor.)
5.10.1 Removal
5.10.2 Remounting
5.11 Replacing 19 Amp Reverser on the MX-140 and -150 (Not for most actuators shipped after September 2007)
5.12 19 Amp Power Assembly for Units Shipped After September 2007
5.13 Encoder (Through hole and surface mount technology, most units prior to September 2007)
5.13.1 Removal
5.13.2 Remounting
5.14 Encoder Drive Cartridge (Most units prior to September 2007)
5.14.1 Removal
5.14.2 Remounting
5.15 Removal and Replacement of MX Encoder (Supplied With Most Actuators Since September 2007)
5.15.1 Removal
5.15.2 Remounting
5.16 Encoder Drive Cartridge (Supplied With Most Actuators Since September 2007)
5.16.1 Removal
5.16.2 Remounting
5.17 Motor Lead Harness (MX-85, -140, and -150)
5.17.1 Removal
5.17.2 Remounting
5.18 Solid State Motor Reverser Upgrade Instructions (Most units prior to September 2007)
5.18.1 Disassembly Procedure
5.18.2 Assembly Procedure
5.19 Mounting of SSMR (Solid State Motor Reverser) in units shipped after February 2008
5.20 Complete Conversion to SMT Controls
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
6 Spare and Replacement Parts
6.1 Guidelines for Recommended Spare Parts
6.1.1 Wear Components
6.1.2 Bearings, O-rings, and Seals 6.1.3 Critical Components 6.2 Recommended Spare Parts for MX Actuators 6.2.1 Commissioning and Startup
6.2.2 Short-Term Duty
6.2.3 Long-Term Duty
6.2.4 Severe Duty
6.3 Other Concerns 7 Regulatory Information
7.1 Declaration of Conformity
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Figures
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Figure 2.1 – Typical MX Actuator
Figure 2.2 – MX Nameplate
Figure 2.3 – Oil Fill/Plug Locations (MX-05 through -40)
Figure 2.4 – Oil Fill and Drain Locations (MX-85, -140, and -150)
Figure 4.1 – Motor (MX-05, -10, -20, and -40)
Figure 4.3 – Motor, Support Plate and Adapter (MX-150)
Figure 4.4 – Declutch (MX-05 and -10)
Figure 4.5 – Declutch (MX-20 and -40)
Figure 4.6 – Declutch (MX-85, -140, and -150)
Figure 4.7 – Top-Mounted Handwheel (MX-05, -10, -20, and -40)
Figure 4.8 – Side-Mounted Handwheel (MX-10 and -20)
Figure 4.9 – Side-Mounted Handwheel (MX-85, -140, and -150)
Figure 4.10 – Side-Mounted Handwheel with SGA (MX-40)
Figure 4.11 – Side-Mounted Handwheel With SGA (MX-85, -140, and -150)
Figure 4.12 – Type A1 Thrust Base (MX-05, -10, -20, and -40)
Figure 4.13 – Type A1 Thrust Base (MX-85) - F16 Flange
Figure 4.14 – Type A1 Thrust Base (MX-85, -140, and -150) - F25 Flange
Figure 4.15 – Type B1 Torque Base (MX-05, -10, -20, and -40)
Figure 4.16 – Type B4 Baseplate (MX-05, -10, -20, and -40)
Figure 4.17 – Type B4 Baseplate (MX-85, -140, and -150)
Figure 4.18 – Worm Shaft (MX-05, -10, -20, and -40)
Figure 4.19 – Drive Sleeve (MX-05 and -10)
Figure 4.20 – MX-20 and -40 Drive Sleeve
Figure 4.21 – MX-85, -140, and -150 10:1 and 13:1 ratios
Figure 4.22 – Handwheel Adapter (MX-05)
Figure 4.23 – Handwheel (MX-05)
Figure 4.24 – Handwheel Adapter Assembly
Figure 4.25 – Handwheel Worm Gear Assembly
Figure 4.26 – MX-20 and -40 Clutch and Ring Components
Figure 4.27 – MX-85, -140, and -150 Clutch and Ring Components
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
Figure 4.28 – MX-85, -140, and -150 Clutch Ring
Figure 5.1 – Control Panel
Figure 5.2 – Control Module
Figure 5.3 – Location of Fuses and Voltage Jumper
Figure 5.4 – LCS Board
Figure 5.5 – Main CPU Board
Figure 5.6 – Power Board
Figure 5.7 – DDC Board
Figure 5.8 – Location of Fuses and Voltage Jumper
Figure 5.9 – SMT Controls with four LEDs
Figure 5.10 – Option Board Assembly
Figure 5.11 – Restoring Power to Actuator with New Control Module
Figure 5.12 – Terminal Block
Figure 5.13 – Terminal Block
Figure 5.14 – Terminal Block Shield
Figure 5.15 – Control Module - Contactor Assembly and Wiring Diagrams
Figure 5.15 – (continued)
Figure 5.16 – Encoder
Figure 5.17 – Encoder Drive Cartridge
Figure 5.18 – Encoder
Figure 5.19 – Encoder Drive Cartridge
Figure 5.20 – Motor Lead Assembly
Figure 5.21 – Cutaway View of SSMR Controls Area
Figure 5.22 – Disassembly Procedure
Figure 5.23 – Solid State Reverser and Fuse Block Assembly Installation
Figure 5.24 – Control module reinstallation
Figure 5.25 – SSMR (Solid State Motor Reverser)
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Tables
Table 2.1 – MX Actuator Subassembly Components
Table 2.2 – Unit weights
Table 2.3 – MX-05 and -10 Oil Capacities when using Oil Fill/Plug Ports
Table 4.1 – Motor Parts List
Table 4.2 – Motor Parts List
Figure 4.2 – Motor and Adapter (MX-140)
Table 4.3 – Motor Parts List
Table 4.4 – Declutch Parts List (MX-05 and -10)
Table 4.5 – Declutch Parts List (MX-20 and -40)
Table 4.6 – Declutch Parts List (MX-85, -140, and -150)
Table 4.7 – Top-Mounted Handwheel Parts List (MX-05, -10, -20, and -40)
Table 4.8 – Side-Mounted Handwheel Parts List (MX-10 and -20)
Table 4.9 – Side-Mounted Handwheel without Spur Gear Attachment Parts List (MX-85, -140, and -150)
Table 4.10 – Side-Mounted Handwheel Parts List (MX-40)
Table 4.11 – Side-Mounted Handwheel Parts List (MX-85, -140, and -150)
Table 4.12 – Type A1 Thrust Base Parts List (MX-05, 10, -20, and -40)
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
Table 4.13 – Type A1 Thrust Base Parts List (MX-85)
Table 4.14 – Type A1 Thrust Base Parts List (MX-85, -140, and -150) - F25 Flange
Table 4.15 – Type B1 Torque Base Parts List (MX-05, -10, -20, and -40)
Table 4.16 – Type B4 Baseplate Parts List Table 4.17 – Worm Shaft Parts List Table 4.18 – Drive Sleeve Parts List (MX-05 and -10)
Table 4.19 – Drive Sleeve Parts List (MX-20, -40, -85, -140, and -150)
Table 4.20 – Handwheel Adapter Parts List (MX-05)
Table 4.21 – Handwheel Adapter Assembly Parts List
Table 4.22 – Handwheel Worm Gear Assembly Parts List
Table 4.23 – Clutch and Clutch Ring Components Parts List
Table 4.24 – Clutch Ring Assembly Parts List
Table 5.1 – Control Panel Parts List Table 5.2 – Control Module Parts List
Table 5.3 - Voltage Jumper Positions
Table 5.4 - Control Board Connectors
Table 5.5 - Screw Part Numbers
Table 5.5 – Terminal Block Parts List
Table 5.7 – Terminal Block Parts List
Table 5.8 – Control Module-Contactor Assembly Parts List
Table 5.9 – 19 Amp Power Assembly
Table 5.10 – Encoder Parts List
Table 5.11 – Encoder Drive Sleeve Speed (RPM)
Table 5.12 – Encoder Drive Cartridge Parts List
Table 5.13 – Encoder Drive Cartridge Drive Sleeve Speed
Table 5.14 – Encoder Parts List
Table 5.15 – Encoder Drive Sleeve Speed (RPM)
Table 5.16 – Encoder Drive Cartridge Parts List
Table 5.17 – SSMR Upgrade Kit Parts List
Table 5.18 – SSMR Motor Fuse Table
Table 5.19 - SSMR Parts List
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
1
Introduction
1.1 Premise
The Flowserve Limitorque MX actuator components are separated into subassembly groupings. This
manual covers the removal and remounting procedures for each subassembly group. Use these instructions when disassembly is required for service, maintenance, or parts replacement.
1.2 Procedure Emphasis
Please refer to the following methods used to emphasize text throughout this manual. Safety warnings,
cautions, and notes present material that is important to user safety. Be sure to read any safety notices
you see, as they could prevent equipment damage, personal injury, or even death to you or a co-worker.
Safety notices are presented in this manual in three forms:
c WARNING: Refers to personal safety. Alerts the user to potential danger. Failure to follow
warning notices could result in personal injury or death.
a CAUTION: Directs the user’s attention to general precautions that, if not followed, could result in
personal injury and/or equipment damage.
NOTE: Highlights information critical to the user’s understanding of the procedure.
Bold text stresses attention to the details of the procedure.
1.3 Important Notes and Warning Statements
Please read this Maintenance and Spare Parts Manual carefully and completely before attempting to
store or perform maintenance on your MX valve actuator. Further installation, setup, and operation
instructions are available in the Installation and Operation manual (LMENIM2306) located in the actuator
terminal compartment at shipment.
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
c WARNING: Be aware of electrical hazards within the actuator and high-pressure hazards of
the attached valve or other actuated device when installing or performing maintenance on
your MX actuator. Failure to observe these precautions could result in serious bodily injury,
damage to the equipment, or operational difficulty.
c WARNING: Do not manually operate actuator with devices other than installed handwheel
and declutch lever. Using additive force devices (cheater bars, wheel wrenches, pipe
wrenches, or other devices of this nature) on the actuator handwheel or declutch lever may
cause serious personal injury and/or damage to the actuator or valve.
1.4 Reference Documents
• Protection, Control and Monitoring features of MX Electric Actuators (Bulletin LMENTB2300)
• MX Control, Performance and Value in Multi-turn Electric Valve Actuators (Bulletin LMENBR2302)
• MX Installation Manual (Bulletin LMENIM2306)
The latest revisions to these documents are available on-line from Flowserve Limitorque’s website,
www.flowserve.com or at www.limitorque.com
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
2
MX Actuator Subassembly
Figure 2.1 – Typical MX Actuator
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3
Note: MX-05 with B4 base shown
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
2.1 MX Actuator Subassembly Components
Table 2.1 – MX Actuator Subassembly Components
No.
Description
1
Top-mounted handwheel
2
Drive sleeve
3
Worm shaft
4
Motor
5
Declutch lever
6
Encoder
7
Control panel (CP)
8
Control module
9
Optional bases
Thrust base type
• A1 = Standard thrust base
• A1E = Extended-reach thrust base
10
Baseplate-type B4 with stem nut options type:
• B4 = stem nut with variable bore and key
• B4E = extended-reach stem nut with variable bore and key
• BL = splined stem nut (SAE or Involute)
11
Handwheel adapter/handwheel worm gear
12
Side-mounted handwheel (not shown, but available for the MX-10, -20,-85, -140, and -150)
13
Encoder drive cartridge
14
Terminal block
2.1.1 Product Description
Your MX actuator controls the opening and closing travel of valves and other actuated devices. OPEN
and CLOSED limits are protected by an absolute encoder that provides optical sensing of valve position
and measures valve position in both motor and handwheel operation. No battery or backup power
supply is required. Output torque is derived from motor speed, temperature, and voltage. If the preset
torque is exceeded, the motor shuts off. As a result of this reliable and advanced protection technology,
all valve and other actuated devices are protected from potential damage from overload, improper
seating, and foreign obstructions.
A range of control and network options is available and can be easily added to the control capabilities
already available on a standard actuator. Contact your local Limitorque distributor or Limitorque sales
office for further information.
2.1.2 Storage
4
Storage Recommendations
Your MX actuator is double-sealed and weatherproof as shipped, providing all compartment covers and
cable entry plugs are left intact. Actuators should be stored in a clean, dry, protected warehouse until
ready for installation. If actuators must be stored outdoors, they should be stored off the ground, high
enough to prevent being immersed in water or buried in snow.
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
If your unit incorporates a rising stem application, it may be shipped with a plastic cap over the drive
sleeve. If so, install a pipe plug or protective stem cover to protect the drive sleeve from possible
corrosion.
Preferred Storage Orientation
Your MX actuator should be stored with the motor and terminal compartment in the horizontal position
to obtain optimum service life.
2.1.3 Unit Weights
Table 2.2 – Unit weights
Unit
lb.
kg
MX-05
52
24
MX-10
65
29
MX-20
109
49
MX-40
133
60
MX-85
259
117
MX-140
300
136
MX-150
410
186
NOTE: Weights include stem nut and lubricant.
2.2 Product Identification
2.2.1 Initial Inspection and Recording Suggestions
Upon receipt of the actuator, several steps should be initially followed to ensure condition of equipment
and to establish proper record keeping.
1. After removing the actuator from the shipping carton or skid, thoroughly examine it for any physical
damage which may have occurred during shipment. If you note any damage, immediately report the
damage to the transport company and call Limitorque for further assistance.
2. A nameplate with important information is attached to each actuator. Record the following information for use when you need to contact Limitorque with any questions about your actuator:
• Unit type/size
• Flowserve Limitorque order number
• Serial number
Figure 2.2 – MX Nameplate
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
2.3 Maintenance
2.3.1 Recommended Maintenance
Under normal operating conditions, the MX is a maintenance-free actuator. Therefore, for normal
applications, no formal actuator maintenance is required although visual inspection for oil leakage and
excessive noise is recommended every 1 million drive sleeve turns or every 3000 cycles. When conditions are severe due to frequent operation or high temperatures, inspect the oil level and oil quality more
often. Replace any seals that permit oil leakage or water ingress. When installing pipe plugs, use PTFE
tape or paste to achieve a proper seal.
2.3.2 Unit Lubrication
Check for proper oil level every 1 million drive sleeve turns (reference Installation and Operation Manual
- Diagnostics Section to learn how to view drive sleeve turns data). Change oil every 6000 unit cycles or
if water or other foreign material is found during oil inspection.
Oil Level Inspection and Fill Criteria
(Reference Table 2.3 for oil capacities when mounted in varying positions)
• Actuator viewed in upright position (top-mounted handwheel up)
Oil level should be approximately 1 inch (25.4 mm) below the outer surface of the housing at the oil fill
port.
NOTE: Do not overfill with oil because oil will expand during actuator operation. Actuators are shipped
with an oil volume suitable for any mounting position. When checking the factory-supplied oil level,
excess oil may drain from the highest oil fill port due to the various mounting orientations of each
application.
• Actuator viewed in side-mounted position (terminal compartment up). Oil level should be up to the
bottom of the oil fill plug.
• Actuator viewed in all other positions than described previously should have the oil capacities
maintained. Fill through the highest oil fill port until the oil is at a level that will contact the bottom of
the pipe plug when installed in oil fill port.
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
Figure 2.3 – Oil Fill/Plug Locations (MX-05 through -40)
t.9TJEFNPVOUFE
IBOEXIFFMPJMDIFDLPJMmMM
t0JMESBJOBMMVOJUT
t.9UPQNPVOUFE
IBOEXIFFMPJMDIFDLPJMmMM
t.9UPQNPVOUFE
IBOEXIFFMPJMDIFDLPJMmMM
t.9TJEFNPVOUFE
IBOEXIFFMPJMDIFDLPJMmMM
Figure 2.4 – Oil Fill and Drain Locations (MX-85, -140, and -150)
0JM1MVH
0JM1MVH
0JM1MVH
0JM1MVH
0JM1MVH
0JM1MVH
Lubrication Data
• Oil Specifications: MX actuators are oil-filled using Mobil SHC-632, which is a synthetic oil suitable for
ambient temperatures of -22°F to 250°F (-30°C to 120°C). For extreme low temperature conditions,
alternative lubricants are available - consult factory for further information.
Table 2.3 – MX-05 and -10 Oil Capacities when using Oil Fill/Plug Ports
Nominal Oil Capacities
oz.
liters
10
0.3
16
.05
Top-mounted handwheel with handwheel up
38
1.1
Top-mounted handwheel with terminal compartment up
47
1.4
Side-mounted handwheel with terminal compartment up
43
1.3
MX-05
MX-10
7
MX-20
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
MX-40
Top and side-mounted handwheel with handwheel up
40
1.2
Top-mounted handwheel with terminal compartment up
53
1.6
Side-mounted handwheel with terminal compartment up
53
1.6
192
5.7
MX-85, -140, and -150
All Configurations
2.3.3 O-Ring and Lubrication
O-rings and seals should be replaced any time an actuator is disassembled. Lubricate with a substance
that is compatible with Buna N seals.
2.4 Subassembly Removal
and Remounting Procedures
This manual divides each MX actuator subassembly into a Removal and Remounting procedure. Use
the following procedures to remove subassemblies for inspection, repair or replacement. Some subassemblies require prior subassembly removal before allowing the desired subassembly removal. Note
the First Remove instructions at the beginning of each subassembly removal procedure. Remove these
subassemblies first, and then remove the desired subassembly according to the instructions. Once
removed, evaluate subassembly components to determine requirement for a new subassembly. If a new
subassembly is required, see Section 2.5. Once components have been identified and replaced, remount
following the appropriate Remounting procedures.
2.5 How to Order Replacement Subassemblies
2.5.1 Replacement Parts
Replacement parts are sold in modular subassemblies; therefore, when part replacement is required,
order parts at the subassembly levels as shown in this manual. Parts may be ordered from your local
Limitorque representative (see www.flowserve.com) or direct from the factory:
Telephone: 1-434-528-4400
Fax: 1-434-845-9736
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
Please have the following information, found on the actuator nameplate, available to help us facilitate
your order:
• Unit type/size
• Limitorque order number
• Serial number
2.5.2 Return Procedure
When parts are identified for warranty or other component replacement, a Return Material Authorization
(RMA) must be obtained from Flowserve. Contact factory for a RMA number (see contact information in
section 2.5.1). All returned parts must be accompanied by documentation with the following information
to obtain credit for returned goods:
• Return Material Authorization (RMA)
• Unit type/size
• Flowserve Limitorque order number
• Serial number
Return parts to the address listed below:
Limitorque Actuation Systems
5114 Woodall Road
Lynchburg, VA 24502
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
This page is intentionally blank.
10
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
3
emove Actuator
R
from Mounting Adapter
3.1 Actuator Removal with Type B1/B4/B4E Base (Torque)
3.1.1 Removal (Type B1/B4/B4E Base)
STEP 1
c WARNING: Hazardous Voltage! Turn off all power sources to actuator before
removing actuator from mounting plate. Power sources may include main power or
control power. If necessary, disconnect incoming power leads L1, L2, L3, and control
wiring from the terminal block.
Remove the bolts that secure the actuator
to the mounting adapter. If type B1 or B4E
base is used in addition to the standard type
B4 or B4E baseplate, you may leave the B1
base attached to the mounting adapter and
remove the actuator only. Or if required, you
may remove the bolts that mount type B1 base
to mounting adapter. This will allow actuator
removal along with optional B1 base.
1
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 2
c WARNING: Potential high-pressure vessel! Before disassembling your actuator,
ensure that the valve or other actuated device is isolated and is not under pressure.
Lift actuator from mounting adapter.
2
3.1.2 Remounting (Type B1/B4/B4E Base)
STEP 3
Ensure stem nut (#1-22) is secured inside
actuator drive sleeve with retaining ring
(#1-23). Lower the actuator onto the mating
component, making sure to align stem nut key
and keyway with mating component.
3
1-22
1-23
STEP 4
Ensure that the actuator and mounting adapter
flange mating holes are aligned correctly.
12
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 5
c WARNING: Hazardous Voltage! Turn off all power sources before rewiring incoming
power leads L1, L2, L3, and control wiring in the terminal block.
Secure the actuator to the mounting adapter
with mounting bolts.
5
STEP 6
Reconnect incoming power leads L1, L2, L3, and control wiring to the terminal block. Restore
power source when ready for operation.
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
3.2 Actuator Removal with Type A1/A1E
Base (Thrust)
NOTE: Two procedure options are available for removing the actuator and thrust base:
1. Remove actuator from thrust base, leaving thrust base mounted to mounting flange or removing
thrust base separately.
2. Remove actuator and thrust base as a unit from mounting flange.
3.2.1 Removal (Type A1/A1E Base)
Actuator Removal Separate from Thrust Base
STEP 1
c WARNING: Hazardous Voltage! Turn off all power sources to actuator before
removing actuator from mounting plate. Power sources may include main power or
control power. If necessary, disconnect incoming power leads L1, L2, L3, and control
wiring from the terminal block.
Remove the bolts (#10-10) that secure the
actuator to the thrust base assembly (#10).
1
10-10
10
STEP 2
c WARNING: Potential high-pressure vessel! Before disassembling your actuator,
ensure that the valve or other actuated device is isolated and is not under pressure.
Lift actuator from thrust base assembly (#10).
2
10
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 3
c WARNING: Potential for actuated device to change position! The thrust base will
maintain position only if non-backdriving thread lead is used. Ensure proper thread
lead is used in your application before allowing thrust base to be used for maintaining position when actuator is removed.
Thrust base removal (if required)
The valve position will be maintained if a
locking thread lead is used on the valve stem.
If thrust base removal is required, use the
following removal procedure.
3
Remove the bolts that secure the thrust base
to the mounting adapter.
STEP 4
Rotate the thrust base (#10) until it feeds off
the threaded stem.
4
10
3.2.2 Remounting (Type A1/A1E Base)
Actuator Remounting Separate from Thrust Base
STEP 5
Thrust base remounting (if required)
Ensure the thrust base stem nut has the two
lugs positioned upward to engage with the
drive sleeve slots when actuator is reinstalled
onto thrust base. Thread thrust base back
onto mounting adapter.
5
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 6
Secure thrust base to mounting adapter with
mounting bolts.
STEP 7
Actuator remounting
Lower the actuator onto the thrust base,
making sure thrust nut lugs align and properly
engage with drive sleeve slots.
STEP 8
Install bolts (#10-10) to secure the actuator to
the thrust base assembly (#10).
6
7
8
STEP 9
c WARNING: Hazardous Voltage! Turn off all power sources before rewiring incoming
power leads L1, L2, L3, and control wiring in the terminal block.
Reconnect incoming power leads L1, L2, L3, and control wiring to the terminal block. Restore
power source when ready for operation.
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
3.2.3 Removal (Type A1/A1E Base)
Actuator and Thrust Base as a Unit
STEP 1
c WARNING: Hazardous Voltage! Turn off all power sources to actuator before
removing actuator from mounting plate. Power sources may include main power or
control power. If necessary, disconnect incoming power leads L1, L2, L3, and control
wiring from the terminal block.
Actuator and thrust base removal
Remove the bolts that secure the actuator and
thrust base (#10) to the mounting adapter.
1
STEP 2
c WARNING: Potential high-pressure vessel! Before disassembling your actuator,
ensure that the valve or other actuated device is isolated and is not under pressure.
Declutch the actuator to manual mode.
STEP 3
Rotate the handwheel until the actuator lifts
off the threaded stem.
2
3
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
3.2.4 Remounting (Type A1/A1E Base)
Actuator and Thrust Base as a Unit
STEP 4
Actuator and thrust base remounting
4
Declutch the actuator to manual mode. Lift
actuator up to the threaded stem and carefully
align threads with thrust base threaded stem
nut.
STEP 5
Rotate the handwheel to lower the actuator
along the threaded stem and onto the
mounting adapter plate.
STEP 6
Install the mounting bolts to secure the
actuator and thrust base (#10) to the
mounting adapter.
5
6
STEP 7
c WARNING: Hazardous Voltage! Turn off all power sources before rewiring incoming
power leads L1, L2, L3, and control wiring in the terminal block.
Reconnect incoming power leads L1, L2, L3, and control wiring to the terminal block. Restore
power source when ready for operation.
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4
Mechanical Assemblies
4.1 Motor
NOTE: Proper motor testing is required when replacing motor. Consult your Limitorque representative
or the Limitorque factory to replace with correct motor.
Table 4.1 – Motor Parts List
Part Number
Description
Qty.
4-1
Motor cover
1
4-2
Stator
1
4-3
Rotor assembly
1
4-4
Bearing
1
4-8
Bearing preload spring
1
4-9
Setscrew
1
Figure 4.1 – Motor (MX-05, -10, -20, and -40)
4-1
A
4-2
Assembly must have
rotation of rotor as shown.
Phase connections are:
T1-Phase 'A'
T2-Phase 'B'
T3-Phase 'C'
4-3
4-8
Motor
leads
4-4
View A-A
A
19
4-9
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.1.1 Removal
STEP 1
c WARNING: Hazardous Voltage! Turn off all power sources to actuator before removing
motor assembly. Power sources may include main power or control power.
Using an M6 hex key, remove the four M8
screws (#1-14) that mount the motor assembly
to the MX-05 through MX-40 actuator.
1
MX-85 requires an M8 hex key and uses an
M10 screw.
1-14
STEP 2
a CAUTION: The rotor is not connected to the motor housing; when removing the motor,
ensure the rotor is carefully removed and not dropped from the motor housing.
Withdraw the complete motor (subassembly
#4), including the rotor (#4-3), until the wiring
harness is accessible. Note the O-ring (#1-15)
on the spigot/pilot of the motor assembly;
replace at remounting.
2
4-3
1-15
STEP 3
Disconnect the motor power plug from the
motor power socket connector.
20
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.1.2 Remounting
STEP 4
c WARNING: Hazardous Voltage! Turn off all power sources to actuator before removing
motor assembly. Power sources may include main power or control power.
Lightly lubricate the O-ring (#1-15) that
is installed around the motor spigot/pilot
(subassembly #4).
4
1-15
STEP 5
Hold the motor assembly (housing/stator/rotor)
close to the actuator housing and reconnect the
motor power plug to the motor power socket
connector.
5
Motor Power
Socket
Connector
Motor Power
Plug
STEP 6
Coil the spiral-wrapped motor power wiring
inside the motor cavity and around the motor
bearing housing to ensure that it does not
come into contact with the rotor shaft.
6
MX-05 through -40 motor wiring will wrap
around about 360°. MX-85/140/150 motor
wiring will wrap around about 180°.
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 7
Push the rotor shaft onto the protruding
worm shaft, aligning the rotor shaft slots with
the worm shaft pin. Slide the motor housing
spigot/pilot into the actuator housing.
STEP 8
Fit the four screws (#1-14) into the motor
subassembly mounting holes and tighten.
7
8
1-14
4.1.3 Removal and mounting of MX-140 motor
(40 RPM and greater)
Table 4.2 – Motor Parts List
Part Number
Description
Qty.
1-14
Socket head cap screw
4
1-15
O-ring
1
4-7
Motor
1
4-8
Adapter, motor
1
4-9
Socket head cap screw
4
4-10
O-ring
1
Figure 4.2 – Motor and Adapter (MX-140)
MAIN UNIT ASSEMBLY
4-8
1-14
4-10
1-15
22
4-7
4-9
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 1
Remove the four (4) socket head cap screws (#4-9) from the motor. Exercise caution as the motor is
heavy and the motor leads may be compromised during disassembly.
STEP 2
Remove the motor leads plug from the motor contactor seal assembly.
STEP 3
Remove the four (4) socket head cap screws (#1-15) from the motor adapter. Ensure the motor leads
have been previously disconnected.
4.1.4 Remounting
Follow steps in Section 4.1.3 in reverse order. Ensure O-rings were not damaged in disassembly. If
necessary, replace.
4.1.5 Mounting of MX-150 motor
The assembly of the MX-150 motor is a two-phase process. Phase 1 includes the mounting of the
motor support plate (#4-17), motor adapter (#4-8), and selection of a quantity of shims required to
offset any gap between the motor support plate and the motor support. Phase two includes removal
of the motor support plate, reinstallation with the shims in place and final tightening of all mounting
screws.
Table 4.3 – Motor Parts List
Part Number
Description
Qty.
1-15
O-ring
1
4-7
Motor
1
4-8
Motor adapter
1
4-9
Socket head cap screws
4
4-10
O-ring
1
4-11
Sheilded ball bearing
1
4-13
Plate, wiring sheild
1
4-14
Socket head cap screws
3
4-15
Socket head cap screws
4
4-16
Pipe plug
6
4-17
Plate, motor support
1
4-18
Shims
4-19
Socket head cap screws
4
4-20
Socket head cap screws
4
AS REQ’D
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
Figure 4.3 – Motor, Support Plate and Adapter (MX-150)
UNIT HOUSING
1-15
MOUNT ADAPTER (PC-4-8) TO UNIT HOUSING
BEFORE MOUNTING MOTOR (PC-4-7)
4-8
4-13
4-15
4-7
UNIT BASEPLATE
4-18
4-11
4-14
4-16
4-17
4-10
4-19
4-20
4-9
UNIT BASEPLATE
4-20
STEP 1
Install support plate (4-17) to unit base plate using socket head cap screws (#4-20).
STEP 2
Place the lead seal connector through the slot in the adapter (#4-8). Install the adapter loosely to unit
housing using screws (#4-15). Rotate adapter until gap is uniform with plate (#4-17). Tighten screws
(#4-15).
STEP 3
Measure gap and select the shim (#4-18) total thickness to be at least the gap plus up to .1mm (.004
inch). Shims are .1mm (.004 inch) each.
STEP 4
Remove plate (#4-17), install shims (#4-18), reinstall plate to base of unit, tighten screws (#4-20). Then
install and tighten screws (#4-19) with shims in place.
NOTES:
1. Pipe plugs (#4-16) must be installed with tape or pipe sealant over the four (4) mounting screws
(#4-15) and the two (2) jacking tap holes.
2. When mounting motor (#4-7) leads must be placed behind plate (#4-13).
24
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
3. Take care not to damage either the O.D. on adapter to I.D on housing and the O.D. on motor to I.D. on
adapter to protect flame path for hazardous certifications.
4.2 Declutch
Table 4.4 – Declutch Parts List (MX-05 and -10)
Part Number
Description
Qty.
5-1
Declutch cover
1
5-2
Declutch shaft
1
5-3
Declutch cam
1
5-4
Declutch spring
1
5-5
Cam spring
1
5-6
Declutch latch
1
5-7
Latch spring
1
5-8
Cam plate
1
5-9
Retaining ring
2
5-10
Socket head cap screw
1
5-11
O-ring
1
5-12
Socket head cap screw
2
5-13
Dowel pin
1
5-14
Roll pin
1
5-15
O-ring
1
Figure 4.4 – Declutch (MX-05 and -10)
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
Table 4.5 – Declutch Parts List (MX-20 and -40)
Part Number
Description
Qty.
5-1
Declutch cover
1
5-2
Declutch shaft
1
5-3
Declutch cam
1
5-4
Declutch spring
1
5-5
Cam spring
1
5-6
Declutch latch
1
5-7
Latch spring
1
5-8
Cam plate
1
5-9
Retaining ring
2
5-10
Socket head cap screw
1
5-11
O-ring
1
5-12
Socket head cap screw
2
5-13
Dowel pin
1
5-14
Roll pin
1
5-15
O-ring
1
5-16
Dowel pin
1
Figure 4.5 – Declutch (MX-20 and -40)
PC. NO. 5-5
Spring,
Declutch
cam
PC. NO. 5-4
Spring, Declutch shaft
5-1
5-15
5-6
5-12
5-13 5-14
5-11
5-9
5-7
5-16
5-9
26
5-3
5-5
5-4
5-10
5-2
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
Table 4.6 – Declutch Parts List (MX-85, -140, and -150)
Part Number
Description
Qty.
5-1
Declutch cover
1
5-2
Declutch shaft
1
5-3
Declutch cam
1
5-4
Declutch spring
1
5-9
Retaining ring
2
5-10
Socket head set screw
1
5-11
O-ring
1
5-12
Socket head set screw
2
5-13
Spiral pin
1
5-15
O-ring
1
5-16
Pipe plug
1
Figure 4.6 – Declutch (MX-85, -140, and -150)
4.2.1 Removal
NOTE: The MX-05, -10, -85, -140, and -150 declutch assembly may be removed and remounted without
other subassembly removal.
NOTE: The MX-20 and -40 declutch assembly may be removed without other subassembly removal, but
remounting requires removing the following subassemblies:
1. Handwheel (Subassembly #13)
27
2. Handwheel adapter (Subassembly #12)
3. Clutch and clutch ring (Subassembly #16)
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 1
c WARNING: Potential to operate while dangerous mechanical parts are exposed during
subassembly removal. To prevent injury, turn off all power sources to actuator before
removing side-mounted and top-mounted handwheel assembly. Power sources may
include main power or control power.
NOTE: Oil removal is not necessary on MX-05, -10, -85, -140, and -150 if actuator is mounted with
declutch lever up.
Drain oil from actuator using the lowest of three
plugs in your application mounting orientation.
1
Oil Plug Drains
STEP 2
c WARNING: Potential to operate while dangerous mechanical parts are exposed during
subassembly removal. To prevent injury, turn off all power sources to actuator before
removing declutch assembly. Power sources may include main power or control power.
Using a 5 mm (MX-05 and -10) or 6 mm
(MX-20, -40, -85, -140, and -150) hex key,
remove the two M6 (MX-05 and -10) screws
(#5-12), M8 (MX-20 and -40) or the four M8
(MX-85, -140, and -150) screws that retain the
declutch assembly cover (#5-1) on the actuator
housing.
28
X
2
5-12
5-1
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 3
Withdraw the complete declutch assembly,
slightly twisting if necessary, to remove. Note
the O-ring (#5-15) with the declutch assembly
cover (#5-1). Replace at remounting.
3a
5-15
Picture 3a is typical MX-05 through -40. Picture
3b is typical MX-85/140/150.
3b
4.2.2 Remounting
STEP 4
(MX-20 and -40 only) Remove the following
subassemblies before remounting the declutch
assembly. (See corresponding referenced
sections for removal information.)
1. Handwheel (subassembly #13). (See
Section 4.3.1.)
4
5-15
2. Handwheel adapter (subassembly #12).
(See Section 4.13.1.)
3. Clutch and clutch ring (subassembly #16).
(See Section 4.15.1.)
Lightly lubricate the O-ring (#5-15) and fit it to
the inner race of the declutch cover (#5-1).
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 5
a CAUTION: (MX-20 and -40 only) To create proper mating between the cam latch (#5-6)
and the shoulder on the worm gear, ensure cam latch is positioned below the worm gear
shoulder (see Picture 5a).
Tip: (MX-20 and -40 only) - Picture 5a shows
proper alignment between the cam latch (#5-6)
and the shoulder on the worm gear.
Tip: (MX-20 and -40 only) - Picture 5b shows
improper alignment between the cam latch
(#5-6) and the shoulder on the worm gear.
Improper alignment could cause the cam latch
to be broken off by the worm gear lug.
Tip: (MX-85, -140, and -150 only) - Picture 5c
shows proper alignment between the cam and
the clutch ring roller.
5a
Cam Latch and
Worm Gear
Shoulder Proper
Alignment
5b
Fit the complete declutch assembly into the
actuator housing, slightly twisting if necessary,
to remount into actuator. See picture 5d.
5c
5d
30
Cam latch and
worm gear shoulder
improper alignment
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 6 (MX-85, -140, and -150 ONLY)
Set screw adjustment. Install drive sleeve, baseplate, clutching and handwheel worm gear components. Assure the clutch lugs are fully engaged to the motor worm gear lugs before the adjustment.
With declutch lever resting on cap pad (not the set screw) place declutch cap assembly (1-4) into
housing without mounting screws. Rotate cap assembly clockwise until declutch cam is resisted
by the roller, clutch ring and clutch combination. Holding the declutch lever, rotate the set screw
clockwise through declutch cap, (this will rotate the cap counterclockwise) until the cap mounting
holes are inline with the taps in the housing. Install declutch assembly mounting screws. Then
rotate set screw counterclockwise 1/4 turn, plus or minus 1⁄8 turn. Adjustment is complete.
STEP 7
Fit the two M6 (MX-05 and -10) screws
(#5-12), M8 (MX-20 and -40) screws to retain
the declutch assembly cover (#5-1) on the
housing. Tighten using a 5 mm (MX-05 and
-10) or 6 mm (MX-20, -40 and -85) hex key.
Picture 7a shows the two screws for the MX-20
and -40. Picture 7b shows the four screws for
the MX-85.
See picture 7a for MX-05, -10, -20 and -40. See
picture 7b for MX-85, -140, and -150.
7a
7b
STEP 8 (MX-20 and -40 only)
Remount the following subassemblies after remounting the declutch assembly.
(See corresponding referenced sections for remounting information.)
1. Handwheel (subassembly #13). (See Section 4.3.2.)
2. Handwheel adapter (subassembly #12). (See Section 4.4.2, 4.4.3, and 4.5.3.)
3. Clutch and clutch ring (subassembly #16). (See Section 4.15.2.)
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.3 Top-Mounted Handwheel
(MX-05, -10, -20, and -40)
Table 4.7 – Top-Mounted Handwheel Parts List (MX-05, -10,
-20, and -40)
Part Number
Description
Qty.
1-8
Handwheel
1
1-9
Handwheel Spacer (MX-05 only)
1
1-10
Wave Spring
1
1-11
Socket head cap screw
4
Figure 4.7 – Top-Mounted Handwheel (MX-05, -10, -20, and -40)
1-8 Handwheel (1)
1-9 (MX-05 only) Handwheel spacer (1)
1-10 Wave spring (1)
1-11 Socket head cap screw (4)
c WARNING: Do not manually operate the actuator with devices other than the installed
handwheel and declutch lever. Using force beyond the ratings of the actuator and/or additive
forces such as cheater bars, wheel wrenches, pipe wrenches, or other devices on the actuator
handwheel or declutch lever may cause serious personal injury and/or damage to the actuator
and valve.
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.3.1 Removal
STEP 1
c WARNING: Potential to operate while dangerous mechanical parts are exposed during
subassembly removal. To prevent injury, turn off all power sources to actuator before
removing top-mounted handwheel assembly. Power sources may include main power
or control power.
Using a 6 mm (MX-05 and -10) hex key or
8 mm (MX-20 and -40) hex key, remove the
four screws (#1-11) that secure the handwheel
(#1-8) to the handwheel adapter assembly
(#1-1).
1
1-8
STEP 2
Lift the handwheel (#1-8) off the handwheel
adapter (#1-1).
11-1
2
4.3.2 Remounting
STEP 3
Install handwheel (#1-8) onto handwheel
adapter assembly (#1-1).
3
1-1
1-8
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 4
Align the handwheel slots with the mounting
holes. Fit the four screws (#1-11) in handwheel
mounting holes and tighten.
34
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.4 Side-Mounted Handwheel Without Spur Gear
Attachment (MX-10, -20, -85, -140, and -150)
Table 4.8 – Side-Mounted Handwheel Parts List (MX-10 and -20)
Part Number
13-1
Description
Qty.
Handwheel wormshaft
1
13-2
Handwheel worm cap
1
13-3
Ball bearing
1
13-4
Quad ring
1
13-5
Seal retainer
1
13-6
O-ring
1
13-7
Roll pin
1
13-8
Ball bearing
1
13-9
Socket head cap screw
13-10
Side-Mounted handwheel
2 (MX-10), 4 (MX-20)
1
Figure 4.8 – Side-Mounted Handwheel (MX-10 and -20)
c WARNING: Do not manually operate the actuator with devices other than the installed
handwheel and declutch lever. Using force beyond the ratings of the actuator and/or additive
forces such as cheater bars, wheel wrenches, pipe wrenches, or other devices on the actuator
handwheel or declutch lever may cause serious personal injury and/or damage to the actuator
and valve.
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.4.1 Side-Mounted Handwheel Without Spur Gear Attachment
(MX-85, -140, and -150)
Table 4.9 – Side-Mounted Handwheel without Spur Gear
Attachment Parts List (MX-85, -140, and -150)
Part Number
Description
Qty.
13-1
Handwheel wormshaft
1
13-2
Handwheel worm cap
1
13-3
Ball bearing
1
13-4
Quad ring
1
13-5
Roll pin
1
13-6
O-ring
1
13-7
Key
1
13-8
Needle bearing
1
13-9
Socket head cap screw
4
13-10
Side-Mounted handwheel
1
13-18
Socket head set screw
1
c WARNING: Do not manually
operate the actuator with
devices other than the installed
handwheel and declutch lever.
Using force beyond the ratings
of the actuator and/or additive
forces such as cheater bars,
wheel wrenches, pipe wrenches,
or other devices on the actuator
handwheel or declutch lever may
cause serious personal injury
and/or damage to the actuator
and valve.
Figure 4.9 – Side-Mounted Handwheel (MX-85, -140, and -150)
4&$5*0/""
36
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.4.2 Removal of Side-Mounted Handwheel
(MX-10, -20, -85, -140, and -150)
Notes: The MX-10 and -20 handwheel is
mounted with a roll pin (13-7). If removal of the
handwheel from the worm shaft is necessary,
remove the handwheel and worm shaft
assembly from unit before removing roll pin.
Removing the roll pin before disassembly of
worm shaft will damage the ball bearing (13-3).
a
The MX-85, -140, and -150 handwheel is
mounted with a key (13-7) and a set screw
(13-18). See pictures a and b.
b
4.4.3 Removal
STEP 1
c WARNING: Potential to operate while dangerous mechanical parts are exposed during
subassembly removal. To prevent injury, turn off all power sources to actuator before
removing side-mounted handwheel assembly. Power sources may include main power
or control power.
Drain oil from actuator using the lowest of three
plugs in your application mounting orientation.
1
Oil Plug Drains
NOTE: Oil removal is not necessary if the
actuator is mounted on valve or other device
with the drive sleeve in a vertical position.
37
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 2 (MX-10 and -20)
a CAUTION: Be aware of inner bearing (#13-8) when removing the side-mounted handwheel. It may stay in the actuator housing or come out with the side-mounted handwheel
assembly. Ensure it is inserted back in actuator housing before remounting side-mounted
handwheel assembly.
Tip: (MX-85, -140, and -150 only) Needle bearing (#13-8) is pressed into housing.
Using a 6 mm hex key, remove the M8 screws
(#13-9) from the handwheel worm shaft cap
(#13-2).
STEP 3
Rotate the handwheel assembly clockwise
(CW) to withdraw the complete subassembly
(#13) from the actuator housing.
38
2
13-9
13-2
3
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.4.4 Remounting
STEP 4
Check that bearing (#13-8) is correctly in place
in the actuator housing.
4a
The MX-10 and -20 is a slip fit (4a).
The MX-85, -140, and -150 is a press fit (4b).
13-8
4b
STEP 5
Insert the complete subassembly into the
actuator housing, rotating counterclockwise
(CCW) to properly mesh the gearing. Ensure
the end of the worm shaft is seated in the inner
bearing (#13-8).
STEP 6
Position the worm shaft cap (#13-2) back on
the actuator housing. Using a 6 mm hex key, fit
the (#13-9) screws onto the worm shaft cap to
secure side-mounted assembly to the actuator
housing.
5
6
39
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.5 Side-Mounted Handwheel With Spur Gear
Attachment (MX-40, -85, -140, and -150)
Table 4.10 – Side-Mounted Handwheel Parts List (MX-40)
Part Number
Description
Qty.
13-1
Handwheel worm shaft
1
13-2
Spur adapter plate
1
13-3
Ball bearing
1
13-6
O-ring
1
13-7
Roll pin
1
13-8
Ball bearing
1
13-9
Socket head cap screw M8x25
4
13-10
Side-Mounted handwheel
1
13-11
Needle bearing
3
13-12
Handwheel input gear
1
13-13
Spur adapter cap
1
13-14
Handwheel input pinion
1
13-15
Quad ring
1
13-16
O-ring spacer
1
13-17
Dowel pin
1
13-18
Roll pin
1
13-19
O-ring
1
13-20
Socket head cap screw M8x20
4
c WARNING: Do not manually operate the actuator
with devices other than
the installed handwheel
and declutch lever. Using
force beyond the ratings
of the actuator and/
or additive forces such
as cheater bars, wheel
wrenches, pipe wrenches,
or other devices on the
actuator handwheel or
declutch lever may cause
serious personal injury
and/or damage to the
actuator and valve.
Figure 4.10 – Side-Mounted Handwheel with SGA (MX-40)
40
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.5.1 MX-85, -140, and -150 Handwheel with SGA
Table 4.11 – Side-Mounted Handwheel Parts List (MX-85, -140,
and -150)
Part Number
13-1
Description
c WARNING: Do not manually
operate the actuator w/ devices
other than the installed handwheel and declutch lever. Using
force beyond the ratings of the
actuator and/or additive forces
such as cheater bars, wheel
wrenches, pipe wrenches, or
other devices on the actuator
handwheel or declutch lever
may cause serious personal
injury and/or damage to the
actuator and valve.
Qty.
Handwheel worm shaft
1
13-2
Spur adapter plate
1
13-3
Ball bearing
1
13-5
Spiral pin
1
13-6
Gasket
1
13-7
Key
1
13-8
Needle bearing
1
13-9
Socket head cap screw M8x25
4
13-10
Side-Mounted handwheel
1
13-11
Ball bearing
1
13-12
Handwheel input gear
1
13-13
Spur adapter cap
1
13-14
Handwheel input pinion
1
13-15
Oil seal
1
13-17
Dowel pin
1
13-18
Set screw
1
13-19
Gasket
1
13-20
Socket head cap screw M8x20
4
13-22
Ball bearing
1
13-23
Ball bearing
1
13-24
Key
2
13-28
Retaining ring
1
Figure 4.11 – Side-Mounted Handwheel With SGA (MX-85, -140, and -150)
13-15
13-23 13-7
13-14
13-10
13-17
13-11
13-2
13-18
13-13
13-28
13-3
13-24
13-24
13-22
13-12
13-17
13-19 13-9
13-8
13-6
13-5
13-1
41
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.5.2 Removal of Handwheel
Notes: The MX-40 handwheel is mounted with
a roll pin (#13-7). If removal of the handwheel
from the worm shaft is necessary, remove the
handwheel and worm shaft assembly from unit
before removing roll pin. Removing the roll pin
before disassembly of worm shaft will damage
the ball bearing (#13-3).
a
The MX-85, -140, and -150 handwheel is
mounted with a key (#13-7) and a set screw
(#13-18). See pictures a and b.
b
STEP 4
Remove the four M6 screws (#13-9) from the worm shaft plate (#13-2).
4.5.3 Removal
STEP 1
c WARNING: Potential to operate while dangerous mechanical parts are exposed during
subassembly removal. To prevent injury, turn off all power sources to actuator before
removing side-mounted handwheel assembly. Power sources may include main power
or control power.
NOTE: Oil removal is not necessary if the actuator is mounted on valve or other device with the
drive sleeve in a vertical position.
Drain oil from actuator using the lowest of three
plugs in your application orientation.
42
1
Oil Plug Drains
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 2
a CAUTION: Be aware of inner bearing (#13-8) when removing the side-mounted handwheel. It may stay in the actuator housing or come out with the side-mounted handwheel
assembly. Ensure it is inserted back in actuator housing before remounting side-mounted
handwheel assembly.
Remove the four screws (#13-20) from the
handwheel spur gear cap (#13-13).
2
13-20
STEP 3
Remove handwheel spur gear cap assembly.
Note when assembly is removed, the spur gear
(#13-12) is loose in spur gear cap. Remove
spur gear.
3a
13-12
MX-40
3b
13-12
MX-85/140/150
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 4
Remove the four M6 screws (#13-9) from the
worm shaft plate (#13-2).
4a
13-9
13-2
MX-40
4b
MX-85/140/150
STEP 5
Removing worm shaft assembly.
5a
MX-40: Remove adapter plate and worm
assembly together (5a).
MX-85/140/150: Remove adapter plate, then
remove worm assembly (5b).
NOTE: When removing the side-mounted
handwheel, the inner bearing (#13-8) should
remain in place in the housing.
Rotate the handwheel assembly clockwise
(CW) to withdraw the complete worm shaft
plate subassembly.
44
MX-40
5b
MX-85/140/150
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 6
If needed, remove the handwheel worm gear
assembly (#12-1). (See Section 4.14.1 for
removal procedure.)
6
Handwheel Worm Gear Adapter (12-1)
4.5.4 Remounting
STEP 7
Check that bearing (#13-8) is correctly in place
in the actuator housing.
7a
MX-40 is slip fit in housing (7a).
MX-85 is press fit in housing (7b).
13-8
7b
STEP 8
If previously removed, install handwheel worm
gear assembly (#12-1). (See Section 4.14.2 for
remounting procedure.)
8
Handwheel Worm Gear Adapter (12-1)
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 9
Ensure O-ring (MX-40) (#13-6) is in place on
worm shaft plate.
9a
13-2
13-6
MX-40, -85, -140, and -150: Insert worm
shaft assembly into actuator housing. Rotate
assembly in counterclockwise (CCW) direction
to properly mate with handwheel worm gear
assembly (#12-1)(9b).
9b
STEP 10a - MX-40
Secure with four M8 screws (#13-9) to secure
the adapter plate (#13-2).
46
10a
13-9
13-2
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 10a and b - MX-85, -140, and -150
Ensure gasket (#13-6) is placed on adapter
(#13-2) and install adapter to housing and
secure with four M8 screws (#13-9).
10b
10c
47
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 11
MX-40 (11a)
Fit gear (#13-12) onto end of worm shaft
(#13-1). Ensure gear slot is fitted into pin
(#13-7).
11a
13-1
13-7
MX-85, -140, and -150 (11b and 11c)
Fit gear (#13-12) onto end of worm shaft.
Ensure both keys (#13-24) are in place in worm
shaft.
13-12
11b
13-24
11c
13-12
48
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 12A - MX-40
Ensure O-ring (#13-19) is in place on worm
shaft plate (#13-2).
12a
13-19
13-2
STEP 12B - MX-85, -140, and -150
Ensure gasket (#13-19) is in place on adapter
(#13-2).
STEP 13a - MX-40
Check that quad ring (#13-15), spacer (#13-16)
and needle bearing (#13-11) are correctly
placed in plate (#13-2) and cap (#13-13).
12b
13a
Install handwheel spur cap assembly, secure
with screws (#13-20).
STEP 13b - MX-85, -140, and -150
Check that seal (#13-15), and ball bearings
(#13-11, 13-22, and 13-23) are correctly placed
in adapter (#13-2) and cap (#13-13).
13b
Install handwheel spur cap assembly. Secure
with screws (#13-20). Remount handwheel
(#13-10) if removed with key (#13-7) and set
screw (#13-18).
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.6 Converting Top-Mounted Handwheel
to Side-Mounted Handwheel
(MX-10, -20, and -40)
4.6.1 Removing Top-Mounted Handwheel
c WARNING: Do not manually operate the actuator with devices other than the installed
handwheel and declutch lever. Using force beyond the ratings of the actuator and/or additive
forces such as cheater bars, wheel wrenches, pipe wrenches, or other devices on the actuator
handwheel or declutch lever may cause serious personal injury and/or damage to the actuator
and valve.
STEP 1
c WARNING: Potential to operate while dangerous mechanical parts are exposed during
subassembly removal. To prevent injury, turn off all power sources to actuator before
removing side-mounted and top-mounted handwheel assembly. Power sources may
include main power or control power.
Drain oil from actuator using the lowest of three
plugs in your application mounting orientation.
1
NOTE: Oil removal is not necessary if actuator
is mounted on valve or other device with the
drive sleeve in a vertical position.
Note: MX-10 shown.
50
Oil Plug
Drains
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 2
Remove top-mounted handwheel assembly
(#1) and handwheel adapter assembly (#12-1)
using disassembly instructions detailed in
Sections 4.3.1 and 4.13.1 respectively.
2a
2b
12
STEP 3
Using a 6 mm hex key, remove the M8 screws
(#13-9) from the handwheel worm shaft cap
(#13-2).
3
13-9
13-2
4.6.2 Installing Side-Mounted Handwheel
STEP 4
Install bearing (#13-8) from side-mounted
handwheel adapter kit into the actuator
housing.
4
MX-10, -20 and -40: the bearing is a slip fit into
the housing.
MX-85, -140, and -150: the bearing is a press
fit into the housing.
13-8
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 5
Replace the handwheel adapter (#12-5) with
the handwheel worm gear (#12-1) that is
included in the side-mounted handwheel
adapter kit.
5
12
STEP 6 (MX-20 and -40 only)
Place the O-ring (#12-4) around the handwheel
adapter; pressing the O-ring into the slot
between the handwheel worm gear adapter
assembly (#12-1) and the actuator housing
(approximately every 15° to 30° until O-ring
seats into slot).
STEP 7
Place the retainer plate (#1-32) on the top of
the actuator housing. Align the mounting taps
and secure with screws (#1-33).
6
12-4
7
1-32
STEP 8
Complete the remounting procedure for side-mounted handwheel assembly #13A (MX-10 and -20)
or #13B (MX-40) as detailed in Section 4.4.3 or Section 4.5.3.
52
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.7 Thrust Base Type A1/A1E
Table 4.12 – Type A1 Thrust Base Parts List (MX-05, 10, -20, and -40)
Part No.
Quantity
Description
(MX-05)
(MX-10)
(MX-20)
(MX-40)
10-1
Thrust base housing
1
1
1
1
10-2
Thrust pilot (Threaded on MX-40)
1
1
1
1
10-3
Thrust nut (A1 or A1E)
1
1
1
1
10-6
Socket head cap screw
1
1
1
N/A
10-7
Washer
1
1
1
N/A
10-8
Pipe plug
1
1
N/A
N/A
10-10
Socket head cap screw
4
4
4
4
10-11
Grease fitting
1
1
1
1
10-12
Thrust bearing
2
2
2
2
10-13
Thrust washer
4
4
4
4
10-14
Quad ring
1
1
1
N/A
10-15
O-ring
1
1
1
1
10-16
Quad ring
1
1
1
1
10-17
Gasket
N/A
N/A
N/A
1
Figure 4.12 – Type A1 Thrust Base (MX-05, -10, -20, and -40)
10-1
10-14
10-8
10-10
10-17
MX-40 gasket
and quad ring
not shown
10-11
10-13
10-3
10-13
10-12
10-15
10-2
10-12
10-7
10-16
10-6
53
a CAUTION: The MX-05 through -40 A1/A1E thrust base contains lubrication. Ensure that a
quality Lithium-based lubricant is used when reassembling the thrust base.
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
Table 4.13 – Type A1 Thrust Base Parts List (MX-85)
Part Number
Description
Qty.
10-1
Thrust base housing
1
10-2
Thrust base mounting flange
1
10-3
Thrust nut (A1 or A1E)
1
10-10
Socket head cap screw
4
10-11
Grease fitting
1
10-12
Thrust bearing
2
10-13
Thrust washer
4
10-14
Quad ring
2
10-15
O-ring
1
10-17
Socket head cap screw
6
Figure 4.13 – Type A1 Thrust Base (MX-85) - F16 Flange
10-11
10-1
10-10
10-12
10-3
10-2
10-15
10-12
10-17
10-14
10-13
10-14
10-13
SECTION A-A
VIEW SHOWN WITH
STANDARD NUT
54
SECTION A-A
VIEW SHOWN WITH
EXTENDED NUT
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
Table 4.14 – Type A1 Thrust Base Parts List (MX-85, -140, and -150) - F25 Flange
Part Number
10-1
Description
Qty.
Thrust Base Housing
1
10-2
Thrust Base Plate
1
10-3
Thrust Nut
1
10-10
Socket Head Cap Screws
4
10-11
Pipe Plug
1
10-12
Thrust Bearing
2
10-13
Thrust Washer
4
10-14
Quad Ring
2
10-15
O-ring
1
10-17
Socket Head Cap Screws
6
Figure 4.14 – Type A1 Thrust Base (MX-85, -140, and -150) - F25 Flange
1JQFQMVH
)PVTJOH
5ISVTU
CFBSJOH
5ISVTUOVU
5ISVTU
CFBSJOH
5ISVTU
QJMPU
5ISVTU
XBTIFS
0SJOH
4PDLFU
IFBEDBQ
TDSFXT
1JQFQMVH
2VBESJOH
2VBESJOH
5ISVTU
XBTIFS
4PDLFUIFBE
DBQTDSFXT
8BTIFS
4FDUJPO""
7JFXTIPXOXJUI
TUBOEBSEOVU
#
4FDUJPO##
7JFXTIPXOXJUI
FYUFOEFEOVU
"
#
"
55
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.7.1 Removal
First Remove
1. Remove actuator from mounting adapter.
STEP 1
c WARNING: Potential to operate while dangerous mechanical parts are exposed during
subassembly removal. To prevent injury, turn off all power sources to actuator before
removing thrust base assembly. Power sources may include main power or control
power.
Remove the four screws (#10-10) and pull the
thrust base assembly off the actuator.
1
4.7.2 Remounting
STEP 2
Secure the thrust base with the four screws
(#10-10).
56
2
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.8 Torque Base Type B1
Table 4.15 – Type B1 Torque Base Parts List (MX-05, -10, -20, and -40)
Part
Number
Quantity
Description
MX-05
MX-10
MX-20
MX-40
10-1
Torque housing
1
1
1
1
10-2
Torque/thrust pilot
1
1
1
1
10-3
Torque nut (B1)
1
1
1
1
10-6
Socket head cap screw
1
1
1
N/A
10-7
Washer
1
1
1
N/A
10-8
Pipe plug
2
2
N/A
N/A
10-10
Socket head cap screw
4
4
4
4
10-11
Grease fitting
1
1
1
1
10-14
O-ring
2
2
1
N/A
10-15
O-ring
1
1
1
1
10-16
O-ring
N/A
N/A
1
1
10-17
Gasket
N/A
N/A
N/A
1
Figure 4.15 – Type B1 Torque Base (MX-05, -10, -20, and -40)
10-8
10-17 (MX-40 only)
gasket not shown
10-10
10-14
10-3
10-1
10-11
10-15
10-6
10-7
10-14 (MX-05 & 10)
10-16 (MX-20 & 40)
10-2
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.8.1 Removal
First Remove
1. Remove actuator from mounting adapter.
STEP 1
c WARNING: Potential to operate while dangerous mechanical parts are exposed during
subassembly removal. To prevent injury, turn off all power sources to actuator before
removing torque base assembly. Power sources may include main power or control
power.
Remove the four screws (#10-1) and pull the
torque base assembly off the actuator.
1
4.8.2 Remounting
STEP 2
Secure the torque base with the four screws
(#10-1).
58
2
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.9 Baseplate Type B4
Table 4.16 – Type B4 Baseplate Parts List
Quantity
Part Number
Description
MX-05, -10, -20
and -40
MX-85/140/150
11-1
Baseplate
1
1
11-2
Pilot
1
N/A
Quad ring
1
1
11-3 Seal
(85/140/150)
11-4
O-ring
1
1
11-5
Socket head cap screw
4
8
Figure 4.16 – Type B4 Baseplate (MX-05, -10, -20, and -40)
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
Figure 4.17 – Type B4 Baseplate (MX-85, -140, and -150)
11-4
11-3
11-1
11-5
Stem Nuts (B4, B4E, and BL): Various stem nuts are used with the B4 baseplate:
1. B4 stem nut with variable bore and key
2. B4E stem nut for extended reach and variable bore and key
3. BL stem nut (6 or 36 splines)
The B4 stem nut is secured by a snap ring and the B4E and BL stem nuts are secured by a spiral-wound
ring. Reference the MX Installation Manual, LMENIM2306 for more information about stem nut options.
4.9.1 Removal
First Remove
1. Remove actuator from mounting adapter.
2. Drain oil.
3. Remove thrust base (subassembly #10) if fitted.
4. Remove stem nut.
60
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 1
c WARNING: Potential to operate while dangerous mechanical parts are exposed during
subassembly removal. To prevent injury, turn off all power sources to actuator before
removing base plate assembly. Power sources may include main power or control
power.
Using a hex key, remove the four or eight
screws (#11-5).
1
11-5
STEP 2
c WARNING: MX-85, -140, and -150. If handwheel worm gear assembly has previously
been removed, the drive sleeve assembly may slip and fall out of housing. Hold drive
sleeve assembly in from opposite end. See Section 4.12.1 and 4.12.2 for optional
removal and remounting.
Pull the baseplate (#11-1) off the drive sleeve.
2a
11-1
2b
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.9.2 Remounting
STEP 3
a CAUTION: To ensure actuator is fully secured on mounting plate, ensure baseplate (#11-1)
is tightened with the following torque values on mounting screws (#11-5):
MX-05 and -10 = 12 ft-lb (16 N m)
MX-20 and -40 = 24 ft-lb (32 N m)
MX-85, -140, and -150 = 90 ft-lb (114 N m)
Lightly lubricate the outside of the drive sleeve,
the quad ring or seal (#11-3), and O-ring
(#11-4) before remounting baseplate.
3
11-3
11-4
STEP 4
NOTE: (MX-20 only) Match outer bosses of baseplate with outer bosses of actuator housing before
mounting baseplate assembly.
NOTE: (MX-85, -140, and -150) Match mounting holes in baseplate to housing taps. Baseplate and
housing has one hole/tap that is not equally spaced.
Carefully push the baseplate assembly onto the
end of the drive sleeve, ensuring that the quad
ring or seal (#11-3) is not damaged. Align the
mounting holes and secure the baseplate with
the screws (#11-5).
62
4
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.10 Worm Shaft
Table 4.17 – Worm Shaft Parts List
Part
Number
Quantity
Description
MX-05, -10, -20
and -40
MX-85, -140, and
-150
3-1
Worm
1
1
3-2
Worm shaft cap
1
1
3-3
Ball bearing
1
1
3-4
Ball bearing
1
2
3-5
Ball bearing
1
N/A
3-6
Oil seal
1
1
3-7
O-ring
1
1
3-8
Pin
1
2
3-9
Socket head cap screw
4
4
Figure 4.18 – Worm Shaft (MX-05, -10, -20, and -40)
.9
.9
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4.10.1 Removal
First Remove
1. Remove actuator from mounting adapter.
2. Drain oil.
3. Remove motor (subassembly #4). (See Section 4.1.1.)
STEP 1
c WARNING: Potential to operate while dangerous mechanical parts are exposed during
subassembly removal. To prevent injury, turn off all power sources to actuator before
removing worm shaft assembly. Power sources may include main power or control
power.
Remove the four screws (#3-9) that secure the
worm shaft cap (#3-2) to the actuator housing.
1
3-2
3-9
STEP 2
NOTE: The inboard bearing (#3-5 for MX-05, -20, -85, -140, and -150), at the end of the worm
shaft (#3-1) should remain in the actuator housing. If it falls out while removing the worm shaft
assembly, ensure it is replaced during remounting process.
Withdraw the complete worm shaft assembly
from the actuator housing, turning/rotating it
if necessary to free the worm from the worm
gear. Note the O-ring (#3-7) that is on the worm
shaft assembly. Replace at remounting.
2
3-1
3-7
(located
behind
flange)
64
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.10.2 Remounting
STEP 3
Check that the bearing (#3-5) is seated firmly in
the actuator housing.
3
STEP 4
NOTE: Lightly lubricate the O-ring (#3-7) before remounting worm shaft (subassembly #3).
Lightly lubricate the O-ring (#3-7) on the worm
shaft (subassembly #3). Push the complete
worm shaft assembly into the actuator housing
until the worm contacts the worm gear. Turn
the worm so it engages the worm gear and
continue rotating until the end of the worm
shaft is isolated in the inboard bearing (#3-4).
4a
3-7
MX-85, -140, and -150 only
Be sure the motor wiring harness is pushed
in, then rotate worm shaft cap (#3-2) around
so that tab is holding wiring harness in place.
See Section 5.11 for motor wiring harness
installation.
4b
Motor
wiring
harness
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STEP 5
Using a hex key, fit the four M6, M8, or M10
screws (#3-9) into the worm shaft cap (#3-2)
mounting holes and tighten.
5a
3-2
5b
66
3-9
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.11 Drive Sleeve (MX-05 and -10)
Table 4.18 – Drive Sleeve Parts List (MX-05 and -10)
Part Number
Description
Qty.
2-1
Drive sleeve
1
2-2
Worm gear
1
2-3
Encoder drive gear
1
2-4
Ball bearing
1
2-5
Retaining ring
1
2-6
Drive sleeve key
1
2-7
Clutch
1
2-8
Clutch spring
1
2-9
Retaining ring
1
Figure 4.19 – Drive Sleeve (MX-05 and -10)
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4.11.1 Removal
First Remove
1. Remove actuator from mounting adapter.
2. Drain oil.
3. Remove thrust base (subassembly #10) - if fitted.
4. Remove motor (subassembly #4). (See Section 4.1.1.)
5. Remove worm shaft (subassembly #3). (See Section 4.10.1.)
6. Remove base plate (subassembly #11). (See Section 4.9.1.)
STEP 1
c WARNING: Potential to operate while dangerous mechanical parts are exposed during
subassembly removal. To prevent injury, turn off all power sources to actuator before
removing drive sleeve assembly. Power sources may include main power or control
power.
Once all other subassemblies are removed,
pull out the drive sleeve assembly (#2) until
the lower bearing (#2-4) is released from
the actuator housing. Remove drive sleeve
assembly from actuator.
68
1
2-4
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.11.2 Remounting
STEP 2
a CAUTION: The drive sleeve surface serves as an oil-sealing surface. Use caution not to
scratch the drive sleeve while completing removal and remounting.
Lightly lubricate the top and bottom of the drive
sleeve assembly as shown.
2
Lubricate
Lubricate
STEP 3
Insert the drive sleeve assembly into the
actuator housing base until the lower bearing
(#2-4) is fully engaged in the housing (seated
on actuator shoulder). If the bearing is a tight
fit, gently tap the bottom of drive sleeve (#2-1)
with a mallet to properly seat.
3
2-4
STEP 4
Remount all removed subassemblies according to their remounting instructions in the following
order:
1. Base plate (subassembly #11). (See Section 4.9.2.)
2. Worm shaft (subassembly #3). (See Section 4.10.2.)
3. Motor (subassembly #4). (See Section 4.1.2.)
4. Thrust base (subassembly #10) - if fitted. (See Section 4.7.2.)
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4.12 Drive Sleeve (MX-20, -40, -85, -140, and -150)
Table 4.19 – Drive Sleeve Parts List (MX-20, -40, -85, -140, and -150)
Quantity
Part
Number
Description
MX-20 and -40
MX-85, -140, and
-150
10:1 and 13:1
Ratio
2-1
Drive sleeve
1
1
1
2-2
Worm gear
1
1
1
2-3
Encoder drive gear
1
1
1
2-4
Ball bearing
1
1
1
2-5
Retaining ring
1
N/A
N/A
2-6
Drive sleeve key
1
1
1
2-7
Spacer
N/A
N/A
3
2-8
Ball bearing
N/A
N/A
2
2-9
Retaining Ring
N/A
N/A
1
Figure 4.20 – MX-20 and -40 Drive Sleeve
70
MX-85, -140, and
-150
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
Figure 4.21 – MX-85, -140, and -150 10:1 and 13:1 ratios
4.12.1 Removal
First Remove
1. Remove actuator from mounting adapter.
2. Drain oil.
3. Remove thrust base (subassembly #10) - if fitted. (See Section 4.8.1.)
4. Remove motor (subassembly #4). (See Section 4.1.1.)
5. Remove worm shaft (subassembly #3). (See Section 4.10.1.)
6. Remove top-mounted handwheel (#1-8) or side-mounted handwheel (subassembly #16). (See
Section 4.3.1 or 4.4.2.)
7. Remove handwheel adapter (subassembly #12). (See Section 4.14.1.)
8. Remove clutch and clutch ring (subassembly #16). (See Section 4.15.1.)
71
9. Remove handwheel declutch (subassembly #5). (See Section 4.2.1.)
10. Remove base plate (subassembly #11). (See Section 4.9.1 or Section 4.12.1 for MX-85, -140, and -150)
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
c WARNING: (MX-85, -140, and -150) The drive sleeve assembly may slip and fall out of
housing when removing baseplate assembly. Hold the drive sleeve assembly in from
opposite end when removing baseplate assembly. See optional drive sleeve and baseplate
removal Section 4.12.3 and 4.12.4.
STEP 1
c WARNING: Potential to operate while dangerous mechanical parts are exposed during
subassembly removal. To prevent injury, turn off all power sources to actuator before
removing drive sleeve assembly. Power sources may include main power or control
power.
Once all other subassemblies are removed,
pull out the drive sleeve assembly (#2) until
the lower bearing (#2-4) is released from
the actuator housing. Remove drive sleeve
assembly from actuator.
1
2-4
MX-85, -140, and -150: Optional drive sleeve
and baseplate removal instructions.
STEP 2 (viewed from baseplate side of actuator)
a CAUTION: (MX-20 and -40) The drive sleeve surface serves as an oil sealing surface. Use
caution not to scratch the drive sleeve while completing removal and remounting.
Tip: To avoid interference between drive
sleeve assembly and encoder drive cartridge
(subassembly #14), turn flat on worm gear to
be parallel and on same side as encoder bevel
gear.
72
2
Worm
Gear Flat
Encoder
Drive
Cartridge
(14)
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 3 (viewed from top-mounted handwheel side of actuator)
a CAUTION: (MX-20 and -40 only) When
removing or remounting drive sleeve
assembly, take precaution not to bump
drive sleeve assembly against encoder
drive cartridge (subassembly #14).
3
Worm
Gear
Flat
Tip: Worm gear flat turned parallel with
encoder drive cartridge (subassembly #14) to
permit drive sleeve assembly removal.
Encoder
Drive
Cartridge
(14)
4.12.2 Remounting
STEP 4
NOTE: Before remounting drive sleeve assembly, ensure that bearing (#3-5) is in place in the
actuator housing. (Refer to motor subassembly #3 Step 1 for details.)
Lightly lubricate the top and bottom of the drive
sleeve assembly as shown.
4
Lubricate areas between
lines
STEP 5
a CAUTION: (MX-20 and -40 only) When removing or remounting drive sleeve assembly,
take precaution not to bump drive sleeve assembly against encoder drive cartridge
(subassembly #14).
Push the drive sleeve assembly into the base
of the actuator housing until the lower bearing
(#2-4) is fully engaged in the housing up to
the shoulder. If the bearing is a tight fit, gently
tap the bottom of the drive sleeve (#2-1) with a
mallet to properly seat.
5
2-4
2-1
MX-85, -140, and -150: See Section 4.12.4
for optional remounting of drive sleeve and
baseplate.
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4.12.3 MX-85, -140, and -150 Optional Drive Sleeve
and Baseplate Removal
First Remove
1. Remove actuator from mounting adapter.
2. Drain oil.
3. Remove thrust base (subassembly #10) - if fitted. (See Section 4.8.1.)
4. Remove motor (subassembly #4). (See Section 4.1.1.)
5. Remove worm shaft (subassembly #3). (See Section 4.10.1.)
6. Remove top-mounted handwheel (#1-8) or side-mounted handwheel (subassembly #16).
(See Section 4.3.1 or 4.4.2.)
7. Remove handwheel adapter (subassembly #12). (See Section 4.14.1.)
8. Remove clutch and clutch ring (subassembly #16). (See Section 4.15.1.)
9. Remove handwheel declutch (subassembly #5). (See Section 4.2.1.)
STEP 1
Lay actuator on its side with the drive sleeve
horizontal. Using a hex key, remove seven of
the baseplate screws (#11-5).
STEP 2
Lay actuator on a table or suitable structure
with one of the screws (#11-5) hanging over
the edge. Remove screw. If needed, rotate
actuator around and remove all other screws.
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1
2
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 3
With help, lift housing straight up and off
baseplate and drive sleeve assemblies.
STEP 4
Using the encoder gear (#2-3), lift drive sleeve
assembly out of the baseplate assembly. Turn
the drive sleeve assembly over (lugs of drive
sleeve up) and set down on table.
3
4a
2-3
NOTE: The drive sleeve assembly is not held
together and will fall apart if set down on a lug
end of drive sleeve.
4b
Lugs
2-3
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.12.4 MX-85, -140, and -150 Optional Drive Sleeve
and Baseplate Remounting
STEP 1
Assemble drive sleeve assembly with drive sleeve lying on opposite end of lugs. Place worm gear
(#2-2), key (#2-6) and encoder drive gear (#2-3) onto the drive sleeve (#2-1). Place the ball bearing
(#2-4) into the baseplate assembly. See picture 4b in Section 4.12.3.
Lightly lubricate the bottom of the drive sleeve (#2-1) and the baseplate seal (#11-3).
Lift the drive sleeve assembly up, and holding the encoder drive gear (#2-2), turn the drive sleeve
over and place into the baseplate assembly. See picture 4a in Section 4.12.3.
STEP 2
With help, lift housing and place over the drive sleeve and baseplate assemblies. Match up the
mounting holes in the baseplate and housing. With the actuator sitting on the baseplate, slide the
unit over to the edge and mount one or two of the baseplate screws (#11-5). Turn unit over on its
side with the drive sleeve horizontal and secure the baseplate with the rest of the mounting screws.
NOTE: The drive sleeve is held in from the top by the handwheel worm gear. Without the handwheel
worm gear, the drive sleeve may slip out of position. Push the drive sleeve back into position from
the handwheel worm gear end. See pictures 3, 2, and 1, in that order, from Section 4.12.1.
STEP 3
Remount all removed subassemblies according to their remounting instructions in the following
order:
1. Base plate (subassembly #11). (See Section 4.9.2.)
2. Worm shaft (subassembly #3). (See Section 4.10.2.)
3. Handwheel declutch (subassembly #5). (See Section 4.2.2.)
4. Clutch and clutch ring (subassembly #16). (See Section 4.15.2.)
5. Handwheel adapter (subassembly #12). (See Section 4.14.2.)
6. Top-mounted handwheel (subassembly #1-8) or side-mounted handwheel (subassembly #13).
(See Section 4.3.2 or 4.4.3.)
7. Motor (subassembly #4). (See Section 4.1.2.)
8. Thrust base (subassembly #10) - if fitted. (See Section 4.8.2.)
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.13 Handwheel Adapter (MX-05)
Table 4.20 – Handwheel Adapter Parts List (MX-05)
Part Number
Description
Qty.
12-1
Handwheel adapter
1
12-2
Needle bearing
1
12-3
Quad ring
1
12-4
O-ring
1
Figure 4.22 – Handwheel Adapter (MX-05)
Figure 4.23 – Handwheel (MX-05)
.9POMZ
)BOEXIFFM4QBDFS
8BWF4QSJOH
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4.13.1 Removal
First Remove
1. Remove actuator from mounting adapter.
2. Drain oil.
3. Remove top-mounted handwheel (#1-8). (See Section 4.3.1.)
4. Remove motor (subassembly #4). (See Section 4.1.1.)
5. Remove worm shaft (subassembly #3). (See Section 4.10.1.)
6. Remove base plate (subassembly #11). (See Section 4.9.1.)
7. Remove drive sleeve (subassembly #2). (See Section 4.11.1.)
STEP 1
c WARNING: Potential to operate while dangerous mechanical parts are exposed during
subassembly removal. To prevent injury, turn off all power sources to actuator before
removing handwheel adapter assembly. Power sources may include main power or
control power.
Remove handwheel spacer (#1-9).
1
1-9
STEP 2
Unwind wave spring (#1-10) and remove.
2
1-10
78
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 3
NOTE: The handwheel adapter for the MX-05 is removed and introduced from the base of the
actuator housing.
Push adapter assembly (#12) from the top
of the actuator out through the bottom of the
actuator housing.
3
Handwheel
Adapter
Assembly 12
4.13.2 Remounting
STEP 4
NOTE: Lightly lubricate quad rings/O-rings before remounting subassemblies.
With handwheel screw taps facing toward the
nameplate side of the actuator, slide handwheel
adapter assembly (#12) into the actuator housing’s drive sleeve bore. Use hammer handle
or similar device to push handwheel adapter
assembly against shoulder inside actuator
housing.
STEP 5
Once handwheel adapter assembly is installed
in actuator housing, wind wave spring (#1-10)
into groove on the handwheel adapter.
4
Handwheel
Adapter
Screw Taps
5
1-10
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STEP 6
Slide handwheel spacer (#1-9) over handwheel
adapter assembly, ensuring wave spring
(#1-10) is seated in groove of the handwheel
spacer.
6
1-9
1-10
STEP 7
Remount all removed subassemblies according to the remounting instructions in the following
order:
1. Drive sleeve (subassembly #2). (See Section 4.11.2.)
2. Base plate (subassembly. #11). (See Section 4.9.2.)
3. Worm shaft (subassembly. #3). (See Section 4.10.2.)
4. Motor (subassembly #4). (See Section 4.1.2.)
5. Top-mounted handwheel (#1-8). (See Section 4.3.2.)
NOTE: After completing handwheel assembly procedure, turn handwheel enough to ensure
wave spring is not pinched between actuator housing and handwheel spacer. If it is pinched,
remove handwheel (#1-8) and handwheel spacer (#1-9) to reseat the wave spring (#1-10) into
the grove on the handwheel spacer. Install handwheel.
6. Add oil.
80
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.14 Handwheel Adapter (MX-10, -20 and -40)/
Handwheel Worm Gear (MX-10, -20, -40, -85,
-140, and -150)
Table 4.21 – Handwheel Adapter Assembly Parts List
Part Number
Description
Qty.
12-1
Handwheel adapter
1
12-2
Ball bearing
1
12-3
Quad ring
1
12-4
O-ring
1
Figure 4.24 – Handwheel Adapter Assembly
6OJRVFUP.9IBOEXIFFM
BEBQUFSPOMZSFUBJOTRVBESJOH
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
Table 4.22 – Handwheel Worm Gear Assembly Parts List
Part Number
Description
Qty.
12-1
Handwheel worm gear
1
12-2
Ball bearing
1
12-3
Quad ring
1
12-4
O-ring
1
12-5
Handwheel adapter
1
Figure 4.25 – Handwheel Worm Gear Assembly
82
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.14.1 Removal
First Remove
1. Top-mounted handwheel (#1-8) or side-mounted handwheel (subassembly #13). (See Section
4.3.1 or 4.4.2.)
NOTE: Before removing handwheel and handwheel adapter assembly, turn handwheel
approximately 45° to permit declutch lever to fully engage therefore making handwheel assembly
easy to remove.
The handwheel adapter assembly and the
handwheel worm gear assembly procedures
are interchangeable. The parts within the
assembly are the same with exception to the
handwheel adapter (#12-1) and the handwheel
worm gear adapter (#12-1). The handwheel
adapter assembly is used when the handwheel
is top-mounted. The handwheel worm gear
assembly is used when the handwheel is
side-mounted.
Handwheel Worm Gear
Adapter (12-1)
Handwheel Adapter
(12-5)
STEP 1
c WARNING: Potential to operate while dangerous mechanical parts are exposed during
subassembly removal. To prevent injury, turn off all power sources to actuator before
removing handwheel adapter assembly. Power sources may include main power or
control power.
Remove the four screws (#1-33) from the
retainer plate (#1-32).
1
1-33
1-32
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STEP 2
Lift off the retainer plate (#1-32).
STEP 3
Pull the handwheel adapter assembly (#12) out
of the actuator housing.
2
3
12
STEP 4 (MX-10 only)
Lift out wave spring (#1-10) from the actuator
housing.
4
1-10
4.14.2 Remounting
STEP 5 (MX-10 only)
Insert the wave spring (#1-10) onto the
shoulder of the actuator housing.
84
5
1-10
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 6
NOTE: Lightly lubricate quad rings/O-rings before remounting subassemblies.
Fit the handwheel adapter assembly (#12) into
the top of the actuator housing. Slowly rotate
the assembly as it approaches its lower position in the actuator; this will allow the quad ring
(#12-3) to ease over the end of the drive sleeve
avoiding damage to the quad ring.
Quad Ring (12-3)
Located Inside
Handwheel Adapter
6
12
STEP 7 (MX-20 and -40 only)
Place the O-ring (#12-4) around handwheel
adapter, pressing the O-ring into the slot
between the handwheel adapter assembly (#12)
and the actuator housing (approximately every
15° to 30°) until the O-ring seats into slot.
7
12-4
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STEP 8
NOTE: Retainer plate (#1-32) may sit slightly above actuator housing until screws are retightened.
c WARNING: The MX-10 through -150 require precaution to prevent damage to the
declutch latch. This applies while installing the handwheel adapter/gear assembly
(#1-35), retainer plate (#1-32) and screws (#1-33). If the unit is in the clutched position
(handwheel operation) during assembly, a lug-to-lug condition can result between the
clutch and the handwheel adapter/gear. In this situation the latch will be compressed
and damaged when the plate screws are tightened.
Assure the clutch lugs are fully engaged to the
bronze gear lugs before installing the handwheel adapter/gear assembly. The latch must
be rotated down and not holding the clutch
off the bronze worm gear. When installing the
handwheel adapter/gear, ensure these lugs fall
between the clutch lugs. This position will allow
the handwheel adapter/gear lugs to be fully
engaged to the clutch lugs. The final step is to
install the retaining plate and socket head cap
screws.
8
1-32
Place the retainer plate (#1-32) on the top of
the actuator housing. Align the mounting taps,
and secure with screws (#1-33).
STEP 9 (MX-10, -20 and -40)
Install handwheel (#1-8) onto handwheel
adapter assembly (#12), align the handwheel
with screw holes and tighten the four socket
head cap screws (#1-11).
or
Install side-mounted handwheel (subassembly
#13) according to remounting instructions
detailed in Section 4.4.3.
86
9
1-8
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.15 Clutch and Clutch Ring Components
(MX-20, -40, -85, -140, and -150)
Table 4.23 – Clutch and Clutch Ring Components Parts List
Part Number
1-38
Description
Qty.
Clutch
1
1-37
Clutch ring
1
1-39
Clutch spring
1
1-40
Spring spacer
1
Figure 4.26 – MX-20 and -40 Clutch
and Ring Components
Figure 4.27 – MX-85, -140, and -150 Clutch
and Ring Components
%SJWF4MFFWF
"TTFNCMZ
%SJWF4MFFWF
"TTFNCMZ
)PVTJOH
#BTFQMBUF
"TTFNCMZ
87
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4.15.1 Removal
First Remove
1. Drain oil.
2. Remove top-mounted handwheel (#1-8) or side-mounted handwheel (subassembly #13). (See
Section 4.3.1, Section 4.4.2, or Section 4.5.2.)
3. Remove handwheel adapter (subassembly #12). (See Section 4.14.1.)
STEP 1
c WARNING: Potential to operate while dangerous mechanical parts are exposed during
subassembly removal. To prevent injury, turn off all power sources to actuator before
removing clutch and clutch ring components. Power sources may include main power or
control power.
Remove spring spacer (#1-40).
1
1-40
STEP 2
Remove clutch spring (#1-39) that is positioned over the drive sleeve assembly (#2).
2
1-39
STEP 3
Remove clutch (#1-38).
88
2
3
1-38
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 4
Remove clutch ring (#1-37).
4
MX-85, -140, and -150 (removing clutch ring
assembly):
While pulling up on clutch ring end with socket
head cap screw (#15-9), rotate latch 90° and
slide clutch ring over drive sleeve and out of
housing.
1-37
4.15.2 Remounting
c WARNING: Potential to operate while dangerous mechanical parts are exposed during
subassembly removal. To prevent injury, turn off all power sources to actuator before
removing clutch and clutch ring components. Power sources may include main power or
control power.
STEP 5a (MX-20 and -40 only)
Remounting clutch ring
5a
Fit the clutch ring (#1-37) over the drive sleeve
with the tangs (forked protrusion) facing down.
Seat tangs over declutch cam (see pictures 5a
and 5a1 at right). See warning note in Section
4.14.2, Step 8.
Clutch
Tangs on
Clutch
Ring
(1-37)
5a1
Declutch Cam
Tangs
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
Table 4.24 – Clutch Ring Assembly Parts List
Part Number
Description
Qty.
15-1
Clutch ring
1
15-2
Roller
1
15-3
Roll pin
1
15-4
Spacer
1
15-5
Latch spring
1
15-6
Roll pin
1
15-7
Latch
1
15-8
Roll pin
1
15-9
Socket head cap screw
1
Figure 4.28 – MX-85, -140, and -150 Clutch Ring
STEP 5b (MX-85, -140, and -150 only)
5b
15-7
15-2
90
15-9
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 5b, c, d (MX-85, -140, and -150)
continued
5c
Fit the clutch ring (#1-37) over the drive sleeve.
With the roller (#15-2) down and holding
the latch (#15-7) 90° from free position. See
picture 5c.
NOTE: The clutch ring socket head cap screw
(#15-9) must fit into hole in housing to keep
ring from rotating. See picture 5d. See warning
Note in Section 4.14.2, Step 8.
5d
STEP 6
Slide clutch (#1-38) over drive sleeve assembly.
Housing
Hole for
Clutch Ring
Screw for
AntiRotation of
Clutch Ring
Assembly
6
1-38
STEP 7
Slide spring (#1-39) over drive sleeve
assembly.
7
1-39
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STEP 8
Slide spring spacer (#1-40) over drive sleeve
assembly.
8
1-40
STEP 9
Remount removed subassemblies according to their remounting instructions in the following order:
1. Handwheel adapter assembly (subassembly #12). See Section 4.14.2.
2. Top-mounted handwheel (#1-8) or side-mounted handwheel (subassembly #13). See Section
4.3.2 or Section 4.4.3 (MX-20), or Section 4.5.3 (MX-40).
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5
Electronic Assemblies
5.1 Control Panel (CP)
Table 5.1 – Control Panel Parts List
Part
Number
Description
Figure 5.1 – Control Panel
Qty.
7-2
O-ring
1
7-3
Black knob
1
7-4
Red knob
1
7-5
Brass pin (not shown)
2
7-6
Self-tapping screw
2
7-7
Black knob cap
1
7-9
Extension spring
1
7-10
Ball (not shown)
1
7-12
Torsion spring
1
7-14
Red knob cap
1
7-19
O-ring retainer
1
7-21
O-ring
1
7-23
Controls cover
1
7-24
Window
1
7-25
Snap ring
1
7-27
Socket head cap screw
4
8-24
PC board
1
8-25
Pan head machine screw (M4x6)
4
7-14
7-6
7-4
7-7
7-23
7-6
7-3
7-12
7-27
8-25
7-25
7-19
7-2
7-21
8-24
7-24
7-23
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5.2 Control Module (Units Supplied Before
September 2003)
Table 5.2 – Control Module Parts List
Part Number
Description
Qty.
8-1
Controls chassis plate
1
8-3
Power board
1
8-4
Main processor board
1
8-5
Phillips pan head mach
4
8-7
Socket head cap screw (M4x10)
3
8-8
Chassis assembly
1
8-9
DDC board (network board) - optional
1
8-10
PC board, (I/O board) - optional
1
8-24
PC board, local control station
1
8-25
Socket head cap screw (M4x6)
4
8-26
Ribbon cable assembly
1
Figure 5.2 – Control Module
8-26
8-24
8-25
8-5
8-3
8-9
8-10
8-4
}
8-10
8-9
Optional
components
8-4
8-3
8-7
94
8-1 8-8
8-26
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5.2.1 Removal
STEP 1
c WARNING: Hazardous Voltage! Turn off all power sources to actuator before removing
control module assembly. Power sources may include main power or control power.
a CAUTION: Potential to cause electrostatic damage to electronic components. Before
handling electronic components, ensure that you are discharged of static electricity by
briefly touching a grounded metal object.
If the I/O option board is installed, disconnect
wire harness plug P3 and P4.
STEP 2
If DDC board is installed, disconnect wire
harness plug P2.
STEP 3
Disconnect wire harness plug P1 and P4 from
the main processor board.
P3
1
P4
2
P2
3
P4
P1
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STEP 4
Disconnect wire harness plugs P1 and P2 from
the main power board.
4
P2
P1
STEP 5
Using a 3 mm hex key, loosen the three M4
mounting plate screws (#8-7) located at the
back of the controls compartment. Slightly
rotate the complete control module assembly
in a counterclockwise (CCW) direction, until the
keyhole slots in the baseplate (#8-1) allow the
heads of the screws to pass through.
STEP 6
Disconnect the AMP® power connector from
the fuse section of the main power board.
5
8-1
8-7
6
AMP
Plug
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STEP 7
Remove the control module assembly from
actuator housing (leave 20-pin ribbon cable
connected to control module boards). Take
control module assembly to work area to
perform maintenance as required.
7
Integral
Controls
Assembly
If control module assembly return is required
for repair/replacement, remove the CP board
from inside the CP cover as follows:
STEP 8
Using a 3 mm hex key, remove the four M4
screws (#8-25) that retain the CP board inside
the CP cover.
STEP 9
Lift the CP board out of the CP cover.
8
8-25
9
(See Section 5.2.3 for fuse replacement.)
(See Section 5.2.4 for control module return
options.)
(See Section 5.2.5 for EPROM care and
replacement.)
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5.2.2 Remounting
If the standard board set was separated from the DDC and/or I/O option boards, reassemble boards
back together as a complete unit before remounting the control module back into the actuator.
STEP 10
c WARNING: Hazardous Voltage! Turn off all power sources to actuator before remounting
ACP assembly. Power sources may include main power or control power.
a CAUTION: Ensure the voltage jumper on power board (see Figure 5.3) is located in the
proper slot for the nameplate and motor voltage!
a CAUTION: Potential to cause electrostatic damage to electronic components. Before
handling electronic components, ensure that you are discharged of static electricity by
briefly touching a grounded metal object.
Position the control module subassembly over
the three mounting screw heads (#8-7). Rotate
the subassembly in clockwise (CW) direction
until all three screws are seated in the keyhole
slots. (The keyhole slots in the mounting plate
[#8-1] are spaced in such a way that the control
module assembly will mount in only one
position).
STEP 11
Tighten the three screws (#8-7) with a 3 mm
hex key.
98
10
11
8-7
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STEP 12
NOTE: Ensure wiring harness bundle routes through the semicircular slots on the printed circuit
boards.
Connect the 6-pin Molex® wire harness to plug
P1 and 14-pin Molex® harness to plug P2 on
main power board.
12
P2
P1
STEP 13
Connect the AMP® power connector to the fuse
section on the main power board.
13
AMP
Plug
STEP 14
Connect the 20-pin Molex® harness to plug P1
on the main processor board.
14
P4
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STEP 15
Connect the 4-pin Molex® harness to plug P4
on the main processor board.
STEP 16
If DDC board is installed, connect 10-pin
Molex® harness to plug P2 on DDC board
(network processor board).
STEP 17
If I/O option board is installed, connect 24-pin
Molex® harness to plug P3 ...
STEP 18
... and connect 2-pin Molex® harness to plug
P4 on I/O option board.
If control module assembly return was required
for repair/replacement, remount the CP board
back inside the CP cover as follows:
100
15
16
P4
P2
17
P3
18
P4
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 19
Using a 3 mm hex key, install the four M4
screws (#8-25) to retain the CP board inside
the CP cover.
STEP 20
Ensure control harness wiring bundle is routed
through the control module mounting plate
notch and along electronic board semicircular
slot. This will help prevent pinching the wiring
when the CP cover is installed.
19
8-25
20
Controls
Harness
Wiring
STEP 21
Reference CP (subassembly #7) to reconnect plugs and install the CP cover.
5.2.3 Fuse Replacement
NOTE: If fuses need to be replaced, they can be found on the power board (#8-3). There are two
primary fuses (1 A, 600 V) on the part of the power board that is perpendicular to the main processor
board. There is also one secondary fuse (0.1 A, 250 V) on the part of the power board that is parallel
to the main processor board. Remove plastic covers to replace the fuses. Removal of the steel chassis
assembly (#8-8) may be necessary to access the secondary fuse. The view to the right shows the
control module with the chassis assembly removed.
Figure 5.3 – Location of Fuses and Voltage Jumper
Secondary
Fuse
Primary
Fuses
101
Voltage
Jumper
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5.2.4 Control Module Return Options
Please contact factory for return options.
5.2.5 EPROM Care and Replacement
There are four EPROMs in the through hole fabricated MX Control Module. These are located on the
LCS board, on the main processor board, on the Power Board, and on the DDC option board. Under
normal circumstances, these EPROMs should not require replacement. Kits including the EPROMs for
the DDC, Main, and LCD board are available for unit upgrades.
NOTE: DDC firmware and Mainboard firmware must be the same revision level.
The location of the LCS EPROM is shown in Figure 5.4.
Figure 5.4 – LCS Board
$16
Figure 5.5 shows the location of the Main CPU Board EPROMs.
Figure 5.5 – Main CPU Board
&130.
102
NOTE: Remove and replace tie wrap.
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
Figure 5.6 shows the location of the EPROM on the Power Board.
Figure 5.6 – Power Board
NOTE: Power board EPROM is not included in replacement kit. This EPROM should not be replaced in
the field.
Figure 5.7 shows the location of the DDC EPROM on the DDC Option Board.
Figure 5.7 – DDC Board
&130.
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5.2.5.1 EPROM Storage and Handling
MX through hole control modules contain EPROMs that are fragile and static-sensitive integrated
circuits. Care should be taken in the storage and handling of the EPROMs.
Do not ship or store EPROMs near strong electrostatic, electromagnetic, magnetic or radioactive fields.
Do not remove labels from EPROMs.
Store EPROMs in static-free containers with care to prevent breakage from shock or damage to pins.
Always use an ESD (ElectroStatic Discharge) wristwrap and proper grounding techniques when
removing or installing EPROMs. Flowserve Limitorque provides a kit which contains an ESD wristwrap
with proper grounding instructions; P/N 102424. Please contact Flowserve Limitorque service at
(434) 528-4400 for purchase.
5.2.5.2 EPROM Removal
It is recommended that an IC (Integrated Circuit) insertion/extraction tool be used to remove EPROMs
from the socket. Flowserve Limitorque provides a kit which contains an EPROM removal tool;
P/N 102424.
5.2.5.3 EPROM Installation
It is recommended that an IC insertion/extraction tool be used to hold the EPROM for installation.
Flowserve Limitorque provides a kit which contains an EPROM removal tool; P/N 102424. To insert a
replacement EPROM, use the following procedure:
The notch at one end of the EPROM must be lined up with the notch at one end of the socket. If the
EPROM notch is not matched to the socket notch, the EPROM will be damaged when the unit is
powered. Gently place the pins of one side of the EPROM into the socket holes in the correct side of the
socket.
Roll the EPROM over until the pins on the other side are each lined up with the socket holes. You may
have to use slight pressure to line up the pins. When you are sure all pins are in line with the socket
holes, firmly push down on top of the EPROM until the pins are well seated in the socket.
NOTE: A problem that can frequently occur when inserting ICs into sockets is if one or more pins are
misaligned, missing the intended socket hole. In this case, the affected pins do not make contact. The
problem is difficult to see because the pins can appear to be in the socket hole. After installing the
EPROM or other IC, always examine both rows of pins very carefully to ensure that the pins are aligned
correctly with the IC.
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5.3 Installation and Removal of SMT Controls
(most units supplied after September 2003 and
before September 2007)
5.3.1 Installation
STEP 1
a CAUTION: Ensure the voltage jumper
on power board is located in the proper
slot for the nameplate and motor
voltage! Follow the template provided
on the Mylar protection barrier for
proper voltage jumper location.
1
a CAUTION: Potential to cause
electrostatic damage to electronic
components. Before handling
electronic components, ensure that
you are discharged of static electricity
by briefly touching a grounded metal
object. Flowserve recommends the
use of a wrist strap grounded to an
appropriate ground.
STEP 2
Attach the SMT terminal block conversion wiring harness (P/N 64-825-0010-4) to the existing
through hole wiring harness. Connect each through hole Molex connector to its corresponding SMT
Molex connector.
STEP 3
Install a tie wrap on the mated 20-pin Molex
connector pair so that they cannot be separated.
STEP 4
Connect the 6-pin Molex wire harness to plug
P2 and 16-pin Molex harness to plug P3, and
the 20-pin Molex wire harness to plug P4 on
power board.
4
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STEP 5
Position the power assembly over the three
mounting screw heads (#1-45). Rotate the
subassembly in the clockwise (CW) direction
until all three screws are seated in the key
slots. (The keyhole slots in the mounting plate
(#8-1) are spaced in such a way that the control
module assembly will mount in only one
position).
5
Tighten the three screws (#1-45) with a 3 mm
hex key.
STEP 6
Connect the AMP power connector to the fuse
section on the power board (P1).
STEP 7
Connect the 10-pin encoder ribbon cable to
plug P3 on the Main/LCS processor board.
Align the polarization plug with the slot in the
center of connector J1.
6
7
STEP 8
Connect the 4-pin Molex harness to plug P4 on the Main/LCS processor board.
STEP 9
106
If DDC, Foundation Fieldbus H1 or PROFIBUS
DP/PA board is installed, stack the network
board onto the Main/LCS board (or I/O option
board) assuring proper mating of the boardto-board connector P1. Connect 10-pin Molex
harness to plug P2 on these boards (network
processor board).
9
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 10
If I/O option board is installed, stack the I/O
option board onto the Main/LCS board assuring
proper mating of the board-to-board connector
P2. Connect 24-pin Molex harness to plug P1
on I/O option board.
10
NOTE: If network or I/O option boards are
installed, they may be stacked on the Main/LCS
board in any order.
STEP 11
Before mounting the LCS/Main processor board into the Control Panel (CP), replace the knobs per
instructions #102254 (supplied with the knob conversion kit).
NOTE: Applies only to version 1 of CP (V1 = triangle-shaped knobs)
Mount the LCS/Main processor board inside the CP cover as follows:
STEP 12
Using a screwdriver, install the four M4 screws (#7-44) to retain the LCS/Main board inside the CP
cover. Select the screws based upon the number of option boards in the actuator; M4 X 6 mm for
standard set, M4 X 25 mm for one option board, and M4 X 45 mm for two option boards.
Ensure the O-ring (#7-21) is intact on the CP spigot/pilot. Hold the CP in front of the control module
assembly and connect the 40-pin ribbon connector plug to connector J1 on the power board. This
ribbon cable is to always remain connected to the LCS/Main board. Align the polarization tab of the
ribbon connector with the slot in J1.
STEP 13
a CAUTION: Potential to pinch cables. When remounting CP cover, take special care not to
pinch the ribbon cables.
Dress the cables as shown, being careful to
position wires so that they pass perpendicularly
over the housing flange.
13
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STEP 14
NOTE: The face of the CP may be installed in any one of four 90° incremental positions. When
changing CP position, avoid over-twisting the ribbon cable.
Rotate the CP until the display orientation of
the front face is correct for normal viewing, and
then slide the CP assembly into the actuator
housing.
14
5.3.2 Removal
For removal, follow installation instructions in reverse.
5.3.3 Fuse Replacement
The view below shows the control module with the chassis assembly removed.
Figure 5.8 – Location of Fuses and Voltage Jumper
Secondary
Fuse
Voltage Jumper
Primary Fuses
Primary Fuse
Remove plastic covers, fuse, and replace with 1 A, 600 V fuse.
Secondary Fuse
Remove plastic cover, fuse, and replace with a 0.1 A, 250 V fuse.
Voltage jumper selection
Remove and replace in proper slots according to nameplate voltage.
108
5.3.4 Control Module Return Options
Please contact factory for return instructions.
6
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
4
5
1
2
3
F
5.4 Mounting of SMT Controls with 54-point
terminal block and four LED configuration
(some units supplied from December 2006
with majority after September 2007)
E
Figure 5.9 – SMT Controls with four LEDs
OTE
REM
STOP
LOC
AL
D
OP
(YE EN
S)
)
(NO
E
OS
CL
C
5.4.1 Installation
STEP 1
a CAUTION: Ensure the voltage jumper on power board (see Figure 5.3) is located in the proper
slot for the nameplate and motor voltage! Follow the template provided on the Mylar protection
barrier for proper voltage jumper location.
B
Table 5.3 - Voltage Jumper Positions
Jumper Position
Supply Power
(106V/115V/200V/212V)
Transformer
110Vac 50/60Hz
(106)
115Vac 60Hz
120Vac 60Hz
208Vac 60Hz
6
5
220Vac
60Hz
|226V/366V/392V/450V|
Transformer
UNLESS OTHERWISE SPECIFIED:
n/a
DIMENSIONS ARE IN INCHES
TOLERANCES:
FRACTIONAL±
ANGULAR: MACH± BEND ±
TWO PLACE DECIMAL ±
THREE PLACE DECIMAL ±
(115)
n/a
INTERPRET GEOMETRIC
TOLERANCING PER:
(115)
PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
<INSERT COMPANY NAME HERE>. ANY
REPRODUCTION IN PART OR AS A WHOLE
WITHOUT THE WRITTEN PERMISSION OF
<INSERT COMPANY NAME HERE> IS
PROHIBITED.
(200)
4
n/a
[212V/505V/530V/572V]
Transformer
MATERIAL
FINISH
USED ON
NEXT ASSY
n/a
NAME
TITLE:
CHECKED
n/a
ENG APPR.
MFG APPR.
Q.A.
COMMENTS:
SIZE
3
(226)
A
n/a
DWG. NO.
AF-2564 Cover assy
C n/a
n/a
SCALE: 1:2
DO NOT SCALE DRAWING
APPLICATION
n/a
DATE
DRAWN
2
n/a
230Vac 50/60Hz
n/a
|226|
n/a
240Vac 60Hz
n/a
|226|
n/a
380Vac 50/60Hz
n/a
|366|
n/a
400Vac 50Hz
n/a
|392|
n/a
415Vac 50Hz
n/a
|392|
n/a
440Vac 50/60Hz
n/a
|450|
n/a
460Vac 60Hz
n/a
|450|
n/a
480Vac 60Hz
n/a
|450|
n/a
525Vac 50/60Hz
n/a
n/a
[505]
550Vac 60Hz
n/a
n/a
[530]
575Vac 60Hz
n/a
n/a
[572]
600Vac 60Hz
n/a
n/a
[572]
REV
SHEET 1 OF 1
WEIGHT:
1
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Note: Brackets indicate setting for transformer in use. See marking on Power Assembly’s shield to
determine the installed transformer and use the primary taps voltage in the corresponding brackets to
determine jumper position. “( )” indicates primary voltages for the (106V/115V/200V/212V) transformer,
“| |” for the |226V/366V/392V/450V| transformer, and “[ ]” for the [212V/505V/530V572V].
a CAUTION: Potential to cause electrostatic damage to electronic components. Before handling
electronic components, ensure that you are discharged of static electricity by briefly touching
a grounded metal object. Flowserve recommends the use of a wrist strap grounded to an
appropriate ground.
STEP 2 – LCS/Main Board
Assemble the LCS/Main board into the actuator control cover using four (4) M4x8 screws.
STEP 3
Connect the yellow 12-pin wire cable harness from the 54-point terminal block to the J5 header.
STEP 4
Connect the two-wire blue cable harness from the 54-point terminal block to header J3.
STEP 5
Connect the grey keyed ribbon cable harness from the 54-point terminal block to header J4.
STEP 6
Connect the blue keyed 18-pin/wire cable harness from the 54-point terminal block to header J8.
STEP 7 – Power board
Install the three (3) standoffs (#1-55) into the housing mounting.
STEP 8
Install the power board complete with the electromechanical starter using the M4 power board
mounting screws. Position power assembly over the three mounting screw heads (#1-45). Rotate the
subassembly in clockwise (CW) direction until all three screws are seated in the key slots.
NOTE: The keyhole slots in the mounting plate (#8-1) are spaced in such a way that the control module
assembly will mount in only one position.
Tighten the three screws (#1-45) with a 3 mm hex key.
STEP 9
Plug the 3-pin Molex harness (L1-L3) to plug into motor reverser. Plug the two (2) two-wire and
thermistor cable (T1-3) to the motor leads.
5.4.2 Removal
For removal, follow installation instructions in reverse.
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5.5 Mounting of Standard and Optional Controls
with 54-point terminal block and four LED
configuration
5.5.1 Installation
NOTES: RESTRICTIONS ON OPTION BOARD COMBINATIONS: Only one of the following can be on any
unit: Modbus - DDC, Profibus PA, Profibus DP, FOUNDATION Fieldbus, DeviceNet.
A shield must be installed on the last board fitting between the last option board and the power board.
See Figure 5.10 for illustration.
A maximum of four option boards can be used per unit, barring other restrictions. A four option board
stack requires four (4) M4x70 pan head screws.
A maximum of three option boards can be used with SSMR due to size constraints. A three option
board stack requires (4) M4x55 pan head screws.
A maximum of two option boards can be used with the 19 amp contactor, due to size constraints. A two
option board stack requires (4) M4x40 pan head screws.
A single option board stack requires four (4) M4x25 pan head screws.
STEP 1 – Standard 2A, (4) “OS” contacts (LCS/Main Board)
Connect to the control cover using (4) M4x8 pan head screws.
From the terminal block, connect 12-pin plug (Cable J1) to socket J5 on the main board.
STEP 2 – Option “OA”, 4-5A “R” contacts and (1) 5A MR (monitor relay); Digital Output
board connection
Connect to the control cover using four (4) M4x25 pan head screws.
Ensure that jumper on the DO board is located in the 1-2 position. Connect 12-to-22 pin adapter to
Cable J1 (12-pin plug). Connect to the 22-pin socket J3 on DigOut board
NOTES: This will disable the digital relays on the main board. A keycode must be entered to restore
them. Please contact factory at 434-528-4400 for the keycode.
A shield is required to be installed between the digital output board and any adjacent boards.
STEP 3 - Option “OB”, 4-5A “R” contacts and (1) 2A MR (monitor relay); Digital Output
board connection and 2 – 2A “S” contacts
Connect to the control cover using four (4) M4x25 pan head screws.
Ensure that the jumper is located in the 3-4 position. Connect Cable J1 (12-pin) to socket J5 (12-pin) on
the main board. Connect cable J5 (22-pin) to socket J3 on DigOut board.
STEP 4 - Option “OC”, 8-5A “R” contacts and (1) 5A MR (monitor relay); 2 Digital Output
boards connection
Connect to the control cover using four (4) M4x40 pan head screws.
111
Ensure that the jumper on DigOut board 1 is in the 1-2 position and the jumper on DigOut board 2 is
in the 3-4 position. Connect the 12-22 pin adapter to Cable J1 (12-pin), then connect it to socket J3
(22-pin) of board 1. Connect cable J5 to socket J3 of board 2.
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STEP 5 – Analog option board connection
Connect to the control cover using four (4) M4x25 pan head screws if one analog board is installed.
Connect to the control cover using four (4) M4x40 pan head screws if two analog boards are installed.
Ensure that jumpers 1 and 2 are in the same position. If there is only one board, both should be in the
1-2 position (Board 1). If there are two boards, the second board should have the jumpers in
2-3 position. Connect J8 (3-pin) cable to J3 of board 1. Connect J3 (4-pin) cable to J1 of board 2.
STEP 6 – Modbus – DDC network board connection
Connect to the control cover using four (4) M4x25 pan head screws if one DDC board is installed.
Ensure that Jumpers 1 and 2 are both in the “A” position. Connect the J7 6-pin cable from the terminal
block to socket J2.
STEP 7 – Profibus-DP network board connection
Connect to the control cover using four (4) M4x25 pan head screws if one Profibus-DP board is
installed. Ensure that both jumpers are in the “A” position. Connect the J7 6-pin cable from the terminal
block to socket J8.
STEP 8 – Profibus-PA network board connection
Connect to the control cover using four (4) M4x25 pan head screws if one Profibus-PA board is
installed. Ensure that both jumpers are in the “A” position. Connect the J7 6-pin cable from the terminal
block to socket J8.
STEP 9 – Foundation Fieldbus network board connection
Connect to the control cover using four (4) M4x25 pan head screws if one FOUNDATION Fieldbus board
is installed. Ensure that both jumpers are in the “A” position. Connect the J7 6-pin cable from the
terminal block to socket J8.
STEP 10 - DeviceNet network board connection
Connect to the control cover using four (4) M4x25 pan head screws if one DeviceNet board is installed.
Ensure that both jumpers are in the “A” position. Connect the 6-pin cable from the terminal block to
socket J8. Set aside yellow ground wire to be fastened to top of option board stack per Figure 5.10.
Above the shield, the wire must make contact with the screw.
STEP 11 – Alignment of Option boards into LCS/Main board
Line up screw sockets and stack the boards so that J7 (option board pins and sockets) fits in with the
main board or any boards that are installed previously. Place shield so sockets match up with cuts in
shield. If DeviceNet board (61-825-0058-4) is used, position grounding wire on top of shield before
fastening screws. Fasten four screws, then align in cover and install to main housing. Please refer to
Table 5.4 for the connector numbers.
Table 5.4 - Control Board Connectors
112
Control Board
DeviceNet
Foundation Fieldbus
Profibus PA
PBDP
Digital Out
Modbus/DDC
Analog
Connector Number
X1
X1
X1
X1
J2
X1
J2
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
Figure 5.10 – Option Board Assembly
DEVICENET OPTION BOARD GROUNDING
WIRE MOUNTED UNDER TOP OPTION
BOARD SCREW HEAD ABOVE THE SHEILD.
CONTROLS COVER ASSEMBLY
GROUND WIRE FOR DEVICENET
BOARD MUST BE MOUNTED UNDER
TOP OPTION BOARD ABOVE THE
SHIELD AND CONTACTING THE
SCREW. MOUNTING SCREW AS
SHOWN IN ‘ASSEMBLED COVER VIEW’
MAIN BOARD
BEND TAB UP 2 PLACES
ASSEMBLED COVER VIEW
OPTION BOARD 1
OPTION BOARD 2
DIGITAL OUTPUT BOARD SHOWN MOUNTING IN BETWEEN OTHER
OPTION BOARDS, NOTE THAT SHIELD IS REQUIRED ON TOP OF
THIS BOARD IF MOUNTED AS TOP OPTION BOARD OR MOUNTED
IN BETWEEN OTHER OPTION BOARDS.
MOUNTING SCREWS
SEE TABLE FOR PART
NUMBER AND SIZE
THIS SHIELD WITH TABS BENT IS ONLY REQUIRED WHEN MOUNTING
DIGITAL OUTPUT BOARD BETWEEN ONE OPTION BOARD AND THE MAIN
BOARD OR BETWEEN 2 OPTION BOARDS.
OPTION BOARD 3
OPTION BOARD 4
TOP SHIELD REQUIRED IF
ONE OR MORE OPTION
BOARDS ARE PROVIDED.
Table 5.5 - Screw Part Numbers
BOARD DESCRIPTION
SCREW PART NUMBER
DESCRIPTION
QTY.
MAIN WITH
NO OPTION BOARDS
64-818-0001-35
M4X8
4
MAIN WITH
1 OPTION BOARD
64-818-0001-32
M4X25
4
MAIN WITH
2 OPTION BOARDS
64-818-0001-36
M4X40
4
MAIN WITH
3 OPTION BOARDS
64-818-0004-3
M4X55
4
MAIN WITH
4 OPTION BOARDS
64-818-0005-3
M4X70
4
a CAUTION: Potential to pinch cables. When remounting ACP cover, take special care not to pinch
ribbon cables.
Dress the cables being careful to position wires so that they pass perpendicularly over the housing
flange.
NOTE: The face of the ACP may be installed in any one of four 90° incremental positions. When
changing ACP position, avoid over-twisting the ribbon cable(s).
Rotate the ACP until the display orientation of the front face is correct for normal viewing, and then slide
the ACP assembly into the actuator housing.
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
5.5.2 Removal
For removal, follow installation instructions in reverse.
5.6 Adding Electronic Options to Your MX Actuator
(Most Supplied After September 2007)
Listed below are the options available for the MX.
1. Modutronic option; does not require any hardware; however, a “keycode” from the factory is
required.
2. Two-speed timer; does not require any hardware, however a “keycode” from the factory is required.
3. APT option; Analog Position Transmitter, non-contacting 4-20 mA position transmitter requiring the
addition of an analog I/O (input/output) option board.
4. ATT option; Analog Torque Transmitter, non-contacting 4-20 mA torque transmitter requiring the
addition of an analog I/O (input/output) option board.
5. R option; Alarm Relays, four latching relays requiring the addition of a digital output board. Latching
relays do not change state when power is removed from the actuator, e.g. if the relay is CLOSED
and power is removed, the relay will remain CLOSED.
6. DDC option; network communication field board that is required for two-wire twisted pair, MODBUS
communication.
7. FF option; network communications board required for Foundation Fieldbus communication.
8. PB options network communications board required for either Profibus DP or PA communication.
9. DeviceNet; network communication board required for DeviceNet communication.
The procedure for adding electronic options to your MX actuator is as follows:
• For adding the Modutronic and two-speed timer options, the actuator QA Stamp ID must be supplied
in order to acquire the necessary keycode.
• Each MX actuator is supplied a unique “QA Stamp ID”. This number is assigned during the end-of-line
test sequence for each unit.
• This serial number is located on the second screen after the “Restricted Settings” screen. It is an
eight-digit number after the letters “S/N”. Please refer to the IOM manual, LMENIM2306, supplied
with your actuator for the Menu sequence. User must supply this number. Example: 12345678
• Also record the Order Number and Serial Number of the actuator. These numbers can be found on the
unit nameplate.
• Once you have acquired the QA Stamp, O/N and S/N, please contact your assigned Service Coordinators for the keycodes required to turn on the desired options at (434) 528-4400.
114
• The “keycode” is then entered into the desired option menu found in “Restricted Settings” using the
black knob on the ACP. A “NO” answer will change the value form 0-9 and A-E. A “YES” answer will
truncate to the next space.
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
• After enabling the Modutronic option, if digital inputs are used for control, remote control may be set
to user inputs.
• For adding the APT, ATT, and R options, the analog output board(s) and/or the digital output board(s)
will be required. When these board(s) are installed into the actuator, it will already have the option(s)
enabled. The unit will recognize the board and turn on the required software menu feature. Please
refer to the IOM manual, LMENIM2306, supplied with your actuator for the Menu sequence. The user
will need to enable the menu options. Please contact your assigned Service Coordinators for purchase
of these desired options at (434) 528-4400.
• For adding the DDC, FF, DN or PROFIBUS option, the DDC, FF, DeviceNet or PB option board is
required. When these boards are received and installed into the actuator, it will recognize the board
and turn on the required software menu feature. Please refer to the IOM manual, LMENIM2306,
supplied with your actuator for the Menu sequence. The user will need to enable the menu options.
Please contact your assigned Service Coordinators for purchase of the network options at (434)
528-4400.
5.7 Restoring Power to Actuator
with New Control Module
Figure 5.11 – Restoring Power to Actuator with New Control Module
YES
YES
UNIT SIZE
MX-05-OK?
YES
VOLTAGE
460 VOLT-OK?
Answer “NO ” until the
NO correct unit size is
displayed. Refer to
nameplate.
Answer “NO ” until
NO the correct voltage
is displayed. Refer
to nameplate.
Answer “NO ” until
NO the correct rpm
is displayed. Refer
to nameplate.
Answer “NO ” until
NO the correct frequency
is displayed. Refer to
nameplate.
YES
YES
ACTUATOR RPM
12/18-OK?
Hz
60 Hz-OK?
S/N
0------OK?
COLD (-50°C) UNIT
YES/NO -OK?
Answer “NO ” until the
NO value is displayed and
then “YES ” to enter .
Refer to namplate for
S/N.
NO
Please refer to Limitorque
MX Customer Connection(s) Diagram
(#L2180) reverse side (located on the
inside of the terminal compartment
cover) for customer default
configuration.
Answer “YES”
to save settings.
Answer “YES ” to select arctic
YES temperature parameters,
-58°F to +140°F (-50°C to
+60°C).
YES
INITIALIZE?
NO Answer
“NO ” to
change.
Answer “NO ” to
select normal
temperature
parameters,
-22°F to +158°F
(-30°C to +70°C).
5.8 Terminal Block (prior to March 2007)
Table 5.5 – Terminal Block Parts List
Part Number
1-20
Description
O-ring
Qty.
1
1-21
Retaining ring
1
1-43
Pan head (M3x4) plastic screw
2
8-15
Terminal block
1
8-16
Self-lock combo head screw (M3x5)
48
8-17
Self-lock combo head screw (M5x8)
3
8-18
Cover plate
1
8-19
Pan head self-tapping screw
2
8-20
Control wiring harness
1
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
Figure 5.12 – Terminal Block
5.8.1 Removal
a CAUTION: Potential to cause electrostatic damage to electronic components. Before handling
electronic components, ensure that you are discharged of static electricity by briefly touching a
grounded metal object.
First Remove
1. Control panel (subassembly #7). (See Section 5.1.)
2. Control module (subassembly #8). (See Section 5.2.1.)
STEP 1
c WARNING: Hazardous Voltage! Turn off all power sources to actuator before removing
terminal block assembly. Power sources may include main power or control power.
Using an M6 hex key, remove the four M8
screws (#8-14) that mount the terminal
compartment cover to the actuator.
116
1
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 2
If actuator is already in service, disconnect
incoming power leads L1, L2, and L3 (and
control wiring from the terminal block if
terminal block replacement is required).
STEP 3
Using a flat head screwdriver, insert the
screwdriver blade underneath the edge of the
snap ring (#1-21) and work the blade around
the back of the snap ring to remove it from the
groove, thus allowing terminal block removal.
STEP 4
Remove terminal block assembly.
2
3
1-21
4
Terminal
Block
Assembly
STEP 5
Disconnect leads L1, L2, and L3 from back of
terminal block.
5
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 6
Feed the terminal block harness plugs over
the contactor assembly (in the control module
compartment) while removing the terminal
block from the terminal block compartment.
6
1-20
NOTE: An O-ring (#1-20) is included with the
terminal block assembly. Ensure you retain or
replace the O-ring at remounting.
5.8.2 Remounting
STEP 7
c WARNING: Hazardous Voltage! Turn off all power sources to actuator before remounting
terminal block assembly. Power sources may include main power or control power.
If necessary, to allow terminal block wiring
bundle to pass across the end of the contactor
and into the controls compartment, use a M3
hex key to loosen the two 4 mm contactor
screws (#8-28). Pull contactor assembly off
the screws and lower assembly to create extra
space for the wire harness to pass over the
contactor and into the controls compartment.
STEP 8
Plug power leads L1, L2, and L3 from contactor
assembly into terminal connectors L1, L2, and
L3 on back of terminal block. Verify that the
O-ring (#1-20) is installed on back of terminal
block. Lightly lubricate O-ring before installing
the terminal block.
118
7
8-28
8
1-20
Power
Leads
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 9
Insert the terminal block into the terminal block
mounting cavity.
STEP 10
Insert the retaining ring (#1-21) into the
retaining ring groove - snap the retaining
ring into the groove by working a flat blade
screwdriver around the edge of the retaining
ring until it seats into the groove.
STEP 11
If the contactor assembly was loosened in
Step 7, then remount the contactor on screws
(#8-28). Retighten with M3 hex key.
STEP 12 and 13
Connect the incoming power leads and the
control wiring according to the application
wiring diagram if the terminal block has been
replaced.
9
10
1-21
11
12, 13
Install the terminal compartment cover and
secure with four M8 screws using a 6 mm hex
key.
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
5.9 MX Terminal Block (Supplied With Most
Actuators Since March 2007)
Table 5.7 – Terminal Block Parts List
Part Number
1-20
Description
Qty.
O-ring
1
1-21
Retaining ring
1
8-15
Terminal block
1
8-16
Self-lock combo head screw (M3x5)
52
8-17
Self-lock combo head screw (M5x8)
3
8-20
Control wiring harness
1
Figure 5.13 – Terminal Block
1-21
8-16
8-15
8-20
8-17
1-20
5.9.1 Terminal Block Shield Installation
STEP 1
Remove terminal block cover.
STEP 2
Use Qty of 2 screws from terminal block or from end users bag to attach shield.
STEP 3
Remount terminal block cover/
Figure 5.14 – Terminal Block Shield
120
M3 X 5 SELF LOCK SCREW
USE QUY. OF TWO (2)
TO MOUNT SHIELD.
USE 2 SCREWS FROM
TERMINAL BLOCK OR
FROM END USERS BAG.
SHIELD-TERMINAL BLOCK
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
5.10 Control Module-Contactor Assembly
(Not required for most actuators shipped after
September 2007. Please see Section 5.4 for power
board installation with contactor.)
Table 5.8 – Control Module-Contactor Assembly Parts List
Part Number
8-27
Description
Qty.
Contactor bracket
1
8-28
Socket head cap screw (M4x8)
1
8-29
Contactor assembly
1
Figure 5.15 – Control Module - Contactor Assembly and Wiring Diagrams
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QJOBNQNBUFOMPDL
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5PQPXFSCPBSE
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-
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-
-
-
-
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-
-
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5
5
5
5
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5PNPUPS1
QJOBNQNBUFOMPDL
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$POOFDUPS/P
121
5PNBJOQSPDFTTPS
CPBSE1
QJO.PMFY
SFDFQUBDMF
$POOFDUPS/P
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
Figure 5.15 – (continued)
QJO".1.BUFO-PDL
1MVH)PVTJOH
$POOFDUPS/P
".14)631-6(
$POOFDUPS
5P1PXFS#PBSE11
-
-
-
/$
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-
-
-
/$
"
1JO.PMFY
3FDFQUBDMF
$POOFDUPS/P
5P0QUJPO#PBSE1
5
5
5
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5
5
5
1JO.PMFY
3FDFQUBDMF
$POOFDUPS/P
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5P.PUPS1
$POOFDUPSTBOE
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$POOFDUPS/P
5.10.1 Removal
First Remove
1. Remove motor (subassembly #4). (See Section 4.1.1.)
2. Remove control panel (subassembly #7). (See Section 5.1.)
3. Remove control module (subassembly #8). (See Section 5.2.1.)
4. Remove terminal block (subassembly #15). (See Section 5.8.1.)
STEP 1
Using an M3 hex key, loosen the two 4 mm
screws (#8-28) that mount the contactor
assembly to the actuator.
1
8-28
122
1JO".1.BUFO-PDL
1MVH)PVTJOH
1JO".1.BUFO-PDL
1MVH)PVTJOH
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 2
Lift contactor assembly until the keyhole slots
in the contactor mounting plate allow the heads
of the M4 screws to pass through.
STEP 3
Remove the contactor assembly while
threading the motor power socket out of the
motor compartment.
2
3
NOTE: Only the MX-05, -10, -20 and -40 have
the long motor power socket lead.
MX-85, -140, and -150
Motor Power Plug
Disconnect connectors 4 and 5 to motor lead
harness.
5.10.2 Remounting
STEP 4
Insert contactor assembly into control module
cavity.
4
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 5
Route leads L1, L2, and L3 (input power) to the
terminal block cavity.
5a
Motor Power
Plug
MX-05, -10, -20 and -40 only
Motor Cavity
Feed the motor power plug through the
housing to the motor cavity.
Terminal Block
Cavity
MX-85, -140, and -150 only
Reconnect connectors 4 and 5 to the motor
lead harness.
STEP 6
Leave the contactor assembly unmounted in
the control module compartment to allow space
for the terminal block harness plug bundle to be
threaded over the top of the contactor assembly
and pulled into the control module cavity.
STEP 7
Reference the terminal block assembly procedures to remount the terminal block assembly
into actuator. (See Section 5.8.2.)
Before mounting the contactor assembly,
ensure the terminal block wiring harness
bundle is positioned across the end of the
contactor.
124
5b
6
7
Terminal Block
Wiring Bundle
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 8
Position the contactor assembly so that the
keyhole slots in the contactor mounting plate
allow the M4 screw heads to pass through;
shift the contactor assembly until the screw
heads seat in the key slots. Tighten screws
using 3 mm hex key to secure assembly.
8
STEP 9
Remount all removed subassemblies according to the remounting instructions in the following
order:
1. Terminal block (subassembly #15). (See Section 5.8.2.)
2. Control module (subassembly #8). (See Section 5.2.2.)
3. Control panel (subassembly #7). (See Section 5.1.)
4. Motor (subassembly #4). (See Section 4.1.2.) If the motor voltage has changed, please see
Section 5.2.3, Step 10 to ensure the voltage jumper on the power board is located in the proper
slot.
5.11 Replacing 19 Amp Reverser on the MX-140
and -150 (Not for most actuators shipped
after September 2007)
STEP 1
Follow the steps in 5.10.1. Remove control cover and disconnect the encoder and controls package.
Remove controls package from MX housing.
STEP 2
Remove terminal cover, retaining ring, terminal block and O-ring to access the back of the terminal
block.
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STEP 3
Disconnect black, blue and brown wires (L1, L2
and L3) from back of terminal block.
3
STEP 4
Disconnect the lead seal from the reverser by unplugging the 2-pin and single-pin white connectors.
STEP 5
Disconnect and remove the encoder mounting screws and the encoder.
STEP 6
Remove the mounting screws for the reverser package and remove the reverser by moving the
reverser towards the space previously occupied by the encoder. Discard the used reverser package.
STEP 7
On the new reverser connect the 2-pin and single-pin white connectors to the lead seal.
STEP 8
Connect the black, blue and brown wires (L1,
L2 and L3) to the back of the terminal block.
8
STEP 9
Install the terminal block with the O-ring and the retaining ring. Install the terminal cover and
screws.
126
a CAUTION: While and after installing, keep wires away from cutout. This cutout allows
non-restricting actuation of the reverser plunger.
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 10
Place the cutout in the insulator against the housing wall. Place side with the screw securing
insulator towards the space for the encoder. The screw is shown in figure 2. Mount the reverser
with the insulator on the housing using two screws. See picture 10.
10
Install reverser
under this tang
19 A version
motor reverser
Reverser mounting
screw 1 of 2
Reverser mounting
screw 2 of 2
Remove encoder
prior to installing reverser
STEP 11
Install the encoder and mount with screws.
STEP 12
Install the controls package and mount with screws.
STEP 13
Connect the white 3-wire power connector from the reverser to the Power board.
STEP 14
Connect the black 6-pin connector from the reverser to the Power board.
STEP 15
Connect the encoder ribbon to the PC board in the control cover.
STEP 16
127
Reconnect the cables disconnected during step 1.
NOTE: The black 2-pin connector is not used with this reverser.
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 17
Install the control cover and the mounting screws.
STEP 18
Complete by following Step 9 in Section 5.10.
5.12 19 Amp Power Assembly for Units Shipped
After September 2007
Table 5.9 – 19 Amp Power Assembly
Part Number
Description
Qty.
1-19
Controls Assembly
1
8-3
Power Board
1
8-7
Mounting Plate Screws
3
8-10
Screws
3
8-12
Shield
1
5.12.1 Removal
STEP 1
1
Remove the ACP controls cover assembly
8-3
8-12
8-10
STEP 2
Disconnect all connectors to power board (8-3)
Remove the three screws (8-10) and shield (8-12).
19 AMP POWER ASSEMBLY REMOVAL 2
STEP 3
Disconnect the three power board wires from
l1, l2 and l3 on reverser as shown by loosening
the reverser screws and remove the power
board.
HOUSING NOT SHOWN FOR CLARITY
3
1-19
TO MOTOR
TWO WHITE 2-PIN
CONNECTORS NOT SHOWN
REVERSER
FROM TERMINAL BLOCK LI (BLACK WIRE)
TO L1 CONTACTOR
FROM TERMINAL BLOCK L2 (LIGHT BLUE WIRE)
TO L2 CONTACTOR
FROM TERMINAL BLOCK L3 (BROWN WIRE)
TO L3 CONTACTOR
128
8-3
TO CONTACTOR
LI (BLACK WIRE) TO L1 CONTACTOR
L2(LIGHT BLUE WIRE) TO L2 CONTACTOR
L3 (BROWN WIRE) TO L3 CONTACTOR
STEP 3
DISCONNECT THE 3 POWER BOARD WIRES FROM L1, L2 AND L3 ON
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 4
Disconnect the three terminal block wires from l1, l2 and l3 on reverser as shown by loosening the
reverser screws.
Remove the 19 amp controls assembly (1-19) by loosening the three M4 mounting plate screws
(8-7) and slightly rotating the controls assembly counterclockwise (CCW) direction until the keyhole
slots in the baseplate allow the heads of the screws to pass through the baseplate.
Disconnect the two 2-pin white connectors from the lead seal.
STEP 5
Remove the 19 amp controls assembly (1-19)
by loosening the three M4 mounting plate
screws (8-7) and slightly rotating the controls
assembly counterclockwise (CCW) direction
until the keyhole slots in the baseplate
allow the heads of the screws to pass through
the baseplate.
5
1-19
8-7
Disconnect the two 2-pin white connectors
from the lead seal.
5.12.2 Remounting
Remount 19 amp power assembly by reversing the steps for removal.
5.13 Encoder (Through hole and surface mount
technology, most units prior to September 2007)
Table 5.10 – Encoder Parts List
Part Number
Description
Qty.
1-6
Encoder assembly
1
1-36
Socket head cap screw (M4x16)
3
6-11
Input gear, 78-tooth (ID 3 through 8)
1
6-24
Input gear, 69-tooth (ID 1 or 2)
1
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Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
Figure 5.16 – Encoder
.9VOJUTXJUI%SJWF
4QFFE*%UISVSFRVJSF
TUBOEBSEJOQVUHFBS
3FGFSFODFUBCMFCFMPX
UPEFUFSNJOFZPVSBDUVBUPS
SFRVJSFNFOUT
.9VOJUTXJUI%SJWF
4QFFE*%PSSFRVJSF
PQUJPOBMJOQVUHFBS
3FGFSFODFUBCMFCFMPX
UPEFUFSNJOFZPVSBDUVBUPS
SFRVJSFNFOUT
Table 5.11 – Encoder Drive Sleeve Speed (RPM)
Drive Sleeve
Speed ID
1
2
3
4
5
6
50 Hz
15
22
33
43
65
84/1101
127/1431
1652
60 Hz
18
26
40
52
77
100/131
155/170
2002
7
1
8
1
1: MX-85, -140, and -150 only.
2: N/A MX-85, -140, and -150.
NOTE: MX units with Drive Speed ID 1 or 2 require an optional input gear. Reference the Output RPM block located
on the MX nameplate and cross-reference in table above to determine the unit Drive Speed ID.
5.13.1 Removal
NOTE: Before removal you must:
a CAUTION: Potential to cause electrostatic damage to electronic components. Before handling
electronic components, ensure that you are discharged of static electricity by briefly touching a
grounded metal object.
1. Remove the control panel (subassembly #7). (See Section 5.1.)
2. Remove the control module (subassembly #8). (See Section 5.2.1.)
130
NOTE: The encoder is a sealed assembly of high-precision components and not suitable for repair.
Should the encoder fail, it will be necessary to install a factory replacement.
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 1
c WARNING: Hazardous Voltage! Turn off all power sources to actuator before removing
encoder assembly. Power sources may include main power or control power.
a CAUTION: To avoid accidental oil leakage when removing encoder screws (#1-36), be
careful not to remove the encoder cartridge mounting screw (#14-8). The encoder cartridge
screw is located near one of the encoder mounting screws. Accidentally removing the
encoder cartridge mounting screw could cause oil leakage into the control compartment.
(See Picture 1a.)
Remove the encoder by locating and removing
the three M4 screws (#1-36) that mount the
encoder to the actuator housing. Use a 3 mm
hex key to remove the screws. Reference
Picture 1b to locate screws (#1-36); note
important cautionary statement discussed with
Step 1 and 1a).
1a
1b
1-36
1-36
14-8
1-36
STEP 2
Pull the complete encoder straight out of the
mounting holes to disengage the gear drive
from the encoder drive cartridge pinion.
2
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5.13.2 Remounting
STEP 3
c WARNING: Hazardous Voltage! Turn off all power sources to actuator before remounting
encoder assembly. Power sources may include main power.
If the actuator uses drive sleeve speed ID 1
or 2, ensure the optional encoder input gear
(#6-24) is installed on the encoder. Align
the three encoder mounting holes with the
matching holes in the actuator housing and
push the encoder straight on to the mounting
boss, carefully positioning the encoder to
ensure correct meshing with the encoder drive
cartridge pinion. If needed to align gearing,
declutch the actuator and turn handwheel
until the encoder gear engages with the drive
cartridge pinion). Fit the three M4 screws
(#1-36) and tighten using a 3 mm hex key. Do
not overtighten.
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5.14 Encoder Drive Cartridge (Most units prior to
September 2007)
Table 5.12 – Encoder Drive Cartridge Parts List
Part Number
Description
Qty.
14-1
Encoder drive cartridge
1
14-2
Encoder drive shaft
1
14-3
Encoder pinion
1
14-4
Ball bearing
2
14-5
Oil seal
1
14-6
Retaining ring
1
14-7
Roll pin
1
14-8
Socket head cap screw
1
14-9
O-ring
1
6-25
Input gear, 21-tooth
1
Table 5.13 – Encoder Drive Cartridge Drive Sleeve Speed
Drive Sleeve
Speed I.D.
1
2
3
4
5
6
7
8
50 Hz RPM
15
22
33
43
65
84/1101
127/1431
1652
60 Hz RPM
18
26
40
52
77
100/1311
155/1701
2002
NOTE: Reference the Output RPM block located on the MX nameplate and cross-reference in table above to
determine the unit Drive Speed ID.
NOTE 1: MX-85, -140, and -150 only.
NOTE 2: N/A MX-85, -140, and -150.
Figure 5.17 – Encoder Drive Cartridge
14-8
14-2
14-1
14-7
14-4
14-5
14-9
14-4
133
14-3
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5.14.1 Removal
NOTE: Before removal you must:
1. Drain oil.
2. Remove the CP cover (subassembly #7). (See Section 5.1.)
3. Remove the control module (subassembly #8). (See Section 5.2.1.)
4. Remove the encoder (subassembly #6). (See Section 5.13.1.)
STEP 1
c WARNING: Hazardous Voltage! Turn off all power sources to actuator before removing
encoder drive cartridge. Power sources may include main power or control power.
Remove the M4 screw (#14-8) using a 3 mm
hex key.
1
14-8
STEP 2
Withdraw the complete encoder drive cartridge
from the actuator housing.
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5.14.2 Remounting
STEP 3
If actuator uses drive sleeve speed ID 1 or 2,
ensure the input gear (#6-25) is installed on the
encoder. Fit the encoder drive cartridge into the
actuator housing.
STEP 4
Using a 3 mm hex key, fit the M4 screw (#14-8)
into the actuator housing to secure the encoder
cartridge.
3
4
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5.15 Removal and Replacement of MX Encoder
(Supplied With Most Actuators Since September
2007)
Table 5.14 – Encoder Parts List
Part Number
Description
Qty.
1-6
Encoder assembly
1
1-36
Socket head cap screw (M4x10)
3
Figure 5.18 – Encoder
1-36
1-6
Table 5.15 – Encoder Drive Sleeve Speed (RPM)
Drive Sleeve
Speed ID
1
2
3
4
5
6
7
8
50 Hz
152
22
33
43
65
84/1101
127/1431
1652
60 Hz
182
26
40
52
77
100/1311
155/1701
2002
NOTE 1: MX-85, -140, and the only available speeds for the MX-150.
NOTE 2: N/A MX-85, -140, and -150.
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5.15.1 Removal
NOTE: Before removal you must:
a CAUTION: Potential to cause electrostatic damage to electronic components. Before handling electronic components, ensure that
you are discharged of static electricity by briefly touching a grounded metal object.
1. Remove the control panel (subassembly #7). (See Section 5.1.)
2. Remove the control module (subassembly #8). (See Section 5.2.1.)
NOTE: The encoder is a sealed assembly of high-precision components and not suitable for repair. Should the encoder fail, it will be
necessary to install a factory replacement.
STEP 1
c WARNING: Hazardous Voltage! Turn off all power sources to actuator before removing
encoder assembly. Power sources may include main power or control power.
a CAUTION: To avoid accidental oil leakage when removing encoder screws (#1-36), be
careful not to remove the encoder cartridge mounting screw (#14-8). The encoder cartridge
screw is located near one of the encoder mounting screws. Accidentally removing the
encoder cartridge mounting screw could cause oil leakage into the control compartment.
Remove the encoder by locating and removing the three M4 screws (#1-36) that mount the encoder
to the actuator housing. Use a 3 mm hex key to remove the screws.
5.15.2 Remounting
STEP 2
c WARNING: Hazardous Voltage! Turn off all power sources to actuator before remounting
encoder assembly. Power sources may include main power.
Align the three encoder mounting holes with the matching holes in the actuator housing and push
the encoder straight on to the mounting boss, carefully positioning the encoder to ensure correct
meshing with the encoder drive cartridge pinion. If needed to align gearing, declutch the actuator
and turn handwheel until the encoder gear engages with the drive cartridge pinion). Fit the three M4
screws (#1-36) and tighten using a 3 mm hex key. Do not overtighten.
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5.16 Encoder Drive Cartridge (Supplied With Most
Actuators Since September 2007)
Table 5.16 – Encoder Drive Cartridge Parts List
Part Number
Description
Qty.
14-1
Encoder drive cartridge
1
14-2
Encoder drive shaft
1
14-3
Encoder pinion
1
14-4
Ball bearing
2
14-5
Oil seal
1
14-7
Roll pin
1
14-8
Socket head cap screw
1
14-9
O-ring
1
Figure 5.19 – Encoder Drive Cartridge
14-8
14-2
14-1
14-7
14-4
14-5
14-9
14-4
14-3
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5.16.1 Removal
NOTE: Before removal you must:
1. Drain oil.
2. Remove the CP cover (subassembly #7). (See Section 5.1.)
3. Remove the control module (subassembly #8). (See Section 5.2.1.)
4. Remove the encoder (subassembly #6). (See Section 5.15.1.)
STEP 1
c WARNING: Hazardous Voltage! Turn off all power sources to actuator before removing
encoder drive cartridge. Power sources may include main power or control power.
Remove the M4 screw (#14-8) using a 3 mm
hex key.
1
14-8
STEP 2
Withdraw the complete encoder drive cartridge
from the actuator housing.
2
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5.16.2 Remounting
STEP 3
If actuator uses drive sleeve speed ID 1 or 2,
ensure the input gear (#6-25) is installed on the
encoder. Fit the encoder drive cartridge into the
actuator housing.
STEP 4
Using a 3 mm hex key, fit the M4 screw (#14-8)
into the actuator housing to secure the encoder
cartridge.
140
3
4
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5.17 Motor Lead Harness (MX-85, -140, and -150)
Figure 5.20 – Motor Lead Assembly
5P$POUBDUPS
1JO".11MVH
5
5P.PUPS
1JO".11MVH
4FBM
5
5
5
5
5I
5
5I
5I
5I
5P$POUBDUPS
1JO".1$BQ
5P.BJO1SPDFTTPS#PBSE
.PMFY1JO1
.PMFY3FDFQUBDMF
5.17.1 Removal
NOTE: Before removal you must:
1. Remove the motor (subassembly #4). (See Section 4.1.1)
2. Remove the CP (subassembly #7). (See Section 5.1)
3. Remove the control module (subassembly #15). (See Section 5.6.1)
4. Remove the contractor assembly (subassembly #8). (See Section 5.10.1)
STEP 1
If the worm shaft assembly (subassembly #3)
is still mounted in the unit, remove the four
screws (#3-9) and rotate the cap (CCW) to
rotate the cap tab away from the motor lead
seal.
1
Cap
Tab
Motor
Lead
Seal
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STEP 2
Remove the motor lead harness by threading
the harness back through the housing and out
the motor end. Work the three connectors out
through the hole/slot in the housing one at a
time.
2
5.17.2 Remounting
STEP 3
Work the three connectors through the hole/
slot in the housing. (Hole/slot is located in the
motor cavity next to the worm shaft bore.)
Thread the three connectors through the
housing into the controls compartment cavity
until the lead seal fits completely into the hole/
slot in the housing.
3a
3b
3c
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STEP 4
Remount all removed subassemblies according to the remounting instructions in the following
order.
1. Contactor assembly (subassembly #8). (See Section 5.10.1)
2. Control module (subassembly #15). (See Section 5.6.1)
3. Control panel (subassembly #7). (See Section 5.1)
4. Motor (subassembly #4). (See Section 4.1.1)
5.18 Solid State Motor Reverser Upgrade
Instructions (Most units prior to September
2007)
Table 5.17 – SSMR Upgrade Kit Parts List
Part Number
7
Description
Quantity
Control panel (CP)
1
7-27
Socket head cap screws (CP)
4
1-52
Solid state reverser assembly
1
1-53
SSMR protection fuse assembly
1
1-54
Motor fuse block assembly
1
1-55
Standoff
3
1-56
Washer
3
Figure 5.21 – Cutaway View of SSMR Controls Area
1-53
1-56
1-52
1-18
8-28
7-27
1-19
1-55
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Tools required:
• M3 hex key
• M6 hex key
• Phillips head screwdriver
• Flat head screwdriver
5.18.1 Disassembly Procedure
Figure 5.22 – Disassembly Procedure
7-44
1-18
8-24
8-9 OR 8-10
STEP 1
Remove contactor. See Section 5.10.1 for removal procedure.
NOTE: Removal of the contactor requires removal of the motor, CP cover, controls, and terminal
block. Sections for these procedures are listed under the contactor removal. See Sections 4.1, 5.1,
5.4 and 5.5.
STEP 2
Retain the Main/LCS board, power assembly, mounting screws, and any optional boards removed
from the CP cover.
STEP 3
Discard the CP cover assembly and the four M8 mounting screws. A new CP with integral insulator
and mounting screws is included in the upgrade kit.
STEP 4
144
Discard the mechanical contactor assembly, keeping the two M4 mounting screws (8-28) per
Figure 5.9.
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5.18.2 Assembly Procedure
STEP 1
Mount fuse the block assembly (1-54) in the unit housing using two of the three standoffs (1-55).
Insert the proper L3 motor fuse into the fuse block (1-54). See Table 5.19 for proper fuse size.
Table 5.18 – SSMR Motor Fuse Table
Nameplate
Limitorque P/N
Ferraz-Shawut
.6 to .89
102478
ATDR 1-6/10
.9 to 1.34
102480
ATDR 2-1/2
1.35 to 2.25
102482
ATDR 4
2.26 to 3.2
102484
ATDR 6
3.21 to 4
102487
ATDR 9
4.1 to 6
102488
ATDR 12
Figure 5.23 – Solid State Reverser and Fuse Block Assembly Installation
1-52
1-56
8-28
1-55
1-54
Motor fuse
NOTE: The Ferraz-Shawut replacement part numbers for the fuses that are supplied for L3 are listed in
the third column in Table 5.19. These fuses can be ordered from Flowserve Limitorque using the part
number in the second column.
STEP 2
Place the solid state reverser (1-52) in unit housing. Feed the motor power plug through the
housing to the motor cavity. Also route leads L1, L2 and L3 to the terminal block cavity. Connect
the (L3) Panduit push-on terminals to each end of the fuse block (1-54). Leave the SSMR reverser
assembly unmounted to allow space for routing the terminal block plug bundle. This bundle is to be
routed over the top of the reverser assembly.
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STEP 3
Route the terminal block plug bundle over the top of the reverser assembly and mount the terminal
block per Section 5.8.2, Steps 7 through 10.
STEP 4
Mount the solid state reverser assembly (1-52) in the unit housing using the existing M4 contactor
mounting screws (8-28).
Figure 5.24 – Control module reinstallation
1-45
1-55
1-53
1-56
1-19
1-57
FUSE
BLOCK PLUG
1-54
STEP 5
Mount the washer (1-56) and the third standoff (1-55) in the housing.
STEP 6
Mount the motor per Section 4.1.2.
STEP 7
Mount the Main/LCS, and if applicable, an optional board into CP using M4 Screws (7-44) per
Section 5.2.2.
NOTE: Only one optional board may be used with the SSMR, either I/O or Network (but not both) in
the same actuator.
STEP 8
146
Mount the SSMR fuse assembly (1-53) using two pan head machine screws (1-57). See Figure 5.23.
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
STEP 9
Mount new power assembly (1-19) on top of the three standoffs (1-55) using the existing three M4
power assembly screws (1-45).
a CAUTION: Assure the voltage jumper on the power board is located in the proper location
per the nameplate and motor voltage! See Figure 5.8 for location of jumper.
STEP 10
Route the two-pin AMP plugs (L1 power connector) over the bottom plate of the control module
and connect to the ceramic fuse block plug.
NOTE: 1-53 SSMR protection fuse Limitorque part number 102476, Bussmann part number
FWP-30A14F.
STEP 11
Referring to Section 5.2.2, connect all plugs.
STEP 12
Mount the CP cover assembly per Section 5.1. Applicable wiring diagrams: 1792, 1793, 1794,
1795, 1796, and 1797.
5.19 Mounting of SSMR (Solid State Motor
Reverser) in units shipped after February 2008
Table 5.19 - SSMR Parts List
Part Number
Description
Qty.
1-18
Controls cover assembly
1
7-27
Socket head cap screws
4
1-52
Solid state reverser power assembly
1
1-55
Standoff
3
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Figure 5.25 – SSMR (Solid State Motor Reverser)
1-18
1-52
1-55
7-27
SOLID STATE REVERSER
1-55
1-52
M4 POWER BOARD
MOUNTING SCREWS
SSMR PROTECTION FUSE ASSEMBLY
MOTOR FUSE BLOCK ASSY
MOTOR FUSE
a CAUTION: Potential to cause electrostatic damage to electronic components. Before handling electronic components, ensure that you are discharged of static electricity by briefly touching a grounded
metal object. Flowserve recommends the use of a wrist strap grounded to an appropriate ground.
STEP 1
Install the three (3) standoffs (#1-55) into the control board housing mounting holes.
STEP 2
Install the power board complete with the SSMR using the M4 power board mounting screws.
STEP 3
Ensure the SSMR fuses are correct per Table 5.19. Part numbers for the SSMR are the same as the Note
under Table 5.19. Confirm the motor FLA current from the MX nameplate.
STEP 4
Plug the 3-pin Molex harness (l1-L3) to plug into motor reverser. Plug the three-wire and thermistor cable
(T1-T3) to the motor leads.
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5.20 Complete Conversion to SMT Controls
NOTE: In addition to the SMT controls, a different terminal block (P/N 26100-006) and contactor
assembly (P/N 21600-009 or 26100-010, or 26100-017) are required for a complete conversion to SMT
controls.
Follow the steps as listed in Section 5.8.1 for removal of the existing through hole terminal block. To
replace with new SMT ready terminal block (P/N 26100-006) follow steps as listed in Section 5.8.2.
Follow steps as listed in Section 5.10 for removal of the existing contactor assembly.
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6
Spare and Replacement Parts
6.1 Guidelines for Recommended Spare Parts
Since every Flowserve Limitorque actuator is designed to meet a specific application, the recommended
spare parts needed to support the actuator will vary for every project. The following guidelines are
provided to assist in determining the specific spare parts requirements for your MX actuators.
6.1.1 Wear Components
The following components will eventually wear under normal use and should therefore be planned as
spares. The expected lifetime of these parts will vary from application to application. They are listed in
order of most frequent to least frequent replacement. Flowserve recommends stock levels of between
5% and 10% of the total population of each part with a minimum of one of each in order to support the
product for life.
1. Stem nut
2. Worm shaft subassembly
3. Drive sleeve subassembly
6.1.2 Bearings, O-rings, and Seals
150
All bearings should be replaced any time an actuator is refurbished. Therefore, all bearings should be
planned for stock for any scheduled refurbishment. In addition, any O-ring or seals should be replaced
any time an actuator is disassembled. Complete actuator seal kits are available for the MX-05/10, the
MX-20/40 and the MX-85/140/150. Flowserve recommends stock levels for seal kits of 10% of the total
population of each actuator model and size. Also, an adequate supply of Flowserve approved oil (Mobil
SHC-632) should be maintained in stock to support any necessary maintenance or refurbishment.
Limitorque MX Maintenance and Spare Parts FCD LMENIM2314-00 – 07/08
6.1.3 Critical Components
The following parts are not subject to wear but are still recommended for stock due to their critical
nature. Flowserve recommends stock levels of between 5% and 10% of the total population of each part
with a minimum of one of each in order to support the product for life.
1. Motor
2. Encoder
3. Control module
6.2 Recommended Spare Parts for MX Actuators
6.2.1 Commissioning and Startup
No additional spare parts are required. All necessary spares are included in the end-user bag.
6.2.2 Short-Term Duty
This is defined as up to 3000 seats or up to 1 million drive sleeve turns, whichever occurs first. There
are no spare parts required for the actuator during short-term duty.
6.2.3 Long-Term Duty
This is defined as service beyond short-term duty but less than 6000 seats and less than 1.5 million
drive sleeve turns. The spares suggested for long-term duty are as follows:
• Quad rings at the top and bottom of the drive sleeve
• Drive sleeve assembly, which includes the worm gear
• Wormshaft assembly
• Encoder cartridge assembly
• Motor assembly
• Fuse (Controls, quantity 1)
• Fuses (Power, quantity 2)
• Encoder assembly
• Reversing starter/contactor with harness
• Control module (includes PCB-power, main, CP, and optional DDC and I/O boards)
• Bronze stem nut for thrust base
• Quad rings in thrust base (MX-10, -20, -40, -85, -140, and -150)
• Quad rings in B1 base
NOTE: Oil should be changed every 6000 seats or sooner if the oil has been contaminated with water or
other foreign material.
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6.2.4 Severe Duty
This is defined as open/close service when run loads exceed 30% of the unit rating. This also includes
all modulating applications.
NOTE: Oil should be changed every 3000 seats for open/close service, or sooner if the oil has been
contaminated.
The spares suggested for severe duty are identical to the long-term duty spares.
6.3 Other Concerns
There are other unique application requirements that may result in additional parts being added to the
list of recommended spares. Some additional issues or requirements that should be considered when
determining required spare parts include (but are not limited to):
1. Maintenance program
2. Frequency of operation
3. Modulating duty
4. Frequent operation by handwheel
5. Regular testing
6. Stall/overload condition
Flowserve strongly recommends using OEM parts to support and maintain your MX actuator. Installing
parts other than genuine Flowserve Limitorque parts could cause premature failure of your actuator and
voids any remaining warranty.
The above guidelines are provided to assist you in determining your unique spare parts needs. Please
contact your local Limitorque Sales Office or local Authorized Stocking Distributor for additional help in
evaluating your needs.
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7
Regulatory Information
7.1 Declaration of Conformity
Application of Council Directive(s)
89/336/EC; EMC Directive
89/392/EC; Machinery Directive
2003/10/EC; Airborne Noise Directive
94/9/EC; ATEX Directive
Standard(s) to which Conformity is Declared
Machinery; EN 60204-1
EMC - Emissions; EN 50081-1&2, EN 55011, CFR 47
Immunity; EN 50082-1&2, IEC 801-3 & IEC 801-6
ESD; IEC 801-2
EFT/Bursts; IEC 801-4
Surge Immunity; IEC 801-5, ANSI/IEEE C62.41
Mains (power) Harmonics; MIL-STD-462, Method CSO1 & CSO2
Airborne Noise; MIL-STD-740-1, Table 1, and EN 60204
ATEX
Electrical Apparatus for Potentially Explosive Atmospheres;
General Requirements EN 50014:1997(A1 and A2)
Flameproof “d” EN 50018:2000(A1)
Increased Safety “e” EN 50019: 2000
Essential Health and Safety Requirements PrEN 13463-5:2003
Non-Electrical Equipment for Potentially Explosive Atmospheres
EN 13463-1:2001
Manufacturer’s Name
Limitorque, a division of Flowserve Corporation
Manufacturer’s Address
5114 Woodall Road
Lynchburg, VA 24502
Importer’s Address
Euro House
Abex Road
Newbury
Berkshire, RG14 5EY
United Kingdom
Type & Description of Equipment
Valve Actuators
Model Number
MX Series
Note: Tested with Limitorque products only and with standards
applicable at time of tests.
I, the undersigned, hereby declare that the equipment specified
above conforms to the above Directive(s) and Standard(s). List as
follows:
(Signature)
Earnest Carey
(Full Name)
Manager, Product Management
(Title)
Flowserve Limitorque
5114 Woodall Rd., Lynchburg VA 24502
(Place)
December 9, 2005
(Date)
Importer’s Name
Limitorque International
154
Andy Hole
(Authorized EU Representative)
Flowserve Corporation
Flow Control
United States
Flowserve Limitorque
5114 Woodall Road,
P.O. Box 11318
Lynchburg, VA 24506-1318
Phone: 434-528-4400
Facsimile: 434-845-9736
England
Flowserve Limitorque
Euro House
Abex Road
Newbury
Berkshire, RG14 5EY
United Kingdom
Phone: 44-1-635-46999
Facsimile: 44-1-635-36034
FCD LMENIM2314-00 Printed in USA.
To find your local Flowserve representative:
For more information about Flowserve Corporation, visit
www.flowserve.com or www.limitorque.com
or call USA 1 800 225 6989
Japan
Limitorque – Nippon Gear Co., Ltd.
Asahi-Seimei Bldg. 4th Floor
1-11-11 Kita-Saiwai, Nishi-Ku
Yokohama-Shi, (220-0004)
Japan
Phone: 81-45-326-2065
Facsimile: 81-45-320-5962
Canada
Flowserve Limitorque
120 Vinyl Court
Woodbridge, Ontario L4L 4A3
Canada
Phone: 905-856-4565
Facsimile: 905-856-7905
Singapore
Limitorque Asia, Pte., Ltd.
12, Tuas Avenue 20
Singapore 638824
Phone: 65-6868-4628
Facsimile: 65-6862-4940
Flowserve Corporation has established industry leadership in the design and manufacture of its products. When properly selected, this Flowserve product is designed to perform its intended
function safely during its useful life. However, the purchaser or user of Flowserve products should be aware that Flowserve products might be used in numerous applications under a wide
variety of industrial service conditions. Although Flowserve can (and often does) provide general guidelines, it cannot provide specific data and warnings for all possible applications. The purchaser/user must therefore assume the ultimate responsibility for the proper sizing and selection, installation, operation, and maintenance of Flowserve products. The purchaser/user should
read and understand the Installation Operation Maintenance (IOM) instructions included with the product, and train its employees and contractors in the safe use of Flowserve products in
connection with the specific application.
While the information and specifications contained in this literature are believed to be accurate, they are supplied for informative purposes only and should not be considered certified or as
a guarantee of satisfactory results by reliance thereon. Nothing contained herein is to be construed as a warranty or guarantee, express or implied, regarding any matter with respect to this
product. Because Flowserve is continually improving and upgrading its product design, the specifications, dimensions and information contained herein are subject to change without notice.
Should any question arise concerning these provisions, the purchaser/user should contact Flowserve Corporation at any one of its worldwide operations or offices.
© 2008 Flowserve Corporation, Irving, Texas, USA. Flowserve is a registered trademark of Flowserve Corporation.
China
Limitorque Beijing, Pte., Ltd.
RM A1/A2
22/F, East Area, Hanwei Plaza
No. 7 Guanghua Road,
Chaoyang District
Beijing 100004, Peoples Republic
of China
Phone: 86-10-5921-0606
Facsimile: 86-10-6561-2702
India
Flowserve Limitorque
423 Jaina Towers II,
District Centre, Janakpuri
New Delhi-110058
Phone: 91-11-25614486
flowserve.com
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