Onboard Systems Lama H-Frame, Frame Swing Cargo Hook Kit Owner's Manual
The Lama H-Frame and Lama Frame Swing are cargo hook kits designed for the Lama series helicopters. They provide a secure and reliable way to attach and release cargo, with both manual and electrical release options. The kits are approved by FAA, Canadian and Austro Control (EASA) for use on the Lama SA 315B.
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Talon LC Keeperless
Cargo Hook Kit
For the
Lama series helicopters
Cargo Hook Kit, H-Frame, Part Number 200-270-00
Cargo Hook Kit, Frame Swing, Part Number 200-271-00
Owner's Manual
Owner's Manual Number 120-100-00
Revision 5
October 26, 2009
13915 NW 3 rd
Court Vancouver Washington 98685 USA
Phone: 360-546-3072 Fax: 360-546-3073 Toll Free: 800-275-0883 www.OnboardSystems.com
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Record of Revisions
Revision
1
2
3
4
5
Date
9/17/02
09/22/05
Page(s)
Title, 4-4
10/10/03 1-1, 1-2, 2-8, and
4-1
2-3, 2-7
3-3, Section 4
Reason for Revision
Factory address change.
528-023-01 cargo hook configuration change
Reference Service Bulletin 159-011-00
Added additional instruction and clarification to manual release cable rigging (pages 2-3, 2-7).
Added Cargo Hook Loading section.
Added reference to cargo hook service manual within section 4 and removed duplicate information from this manual.
09/17/07 TOC, Section 1,
2-3, 2-8 to 2-10,
3-1 and 3-2
Added warnings, cautions and notes explanation to general information section. Updated warnings, cautions and notes format throughout.
10/26/09 2-2, 2-3, 2-7, 2-8 Added caution notes and revised Figure 2-3 and
Figure 2-8.
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CONTENTS
Section 1 General Information
Introduction, 1-1
Warnings, Cautions and Notes, 1-1
Bill of Materials, 1-2
Inspection, 1-3
Specifications, 1-3
Theory of Operation, 1-4
Section 2 Installation Instructions
Installation Instructions, 2-1
Removal of Existing Cargo Hook, 2-1
Installation Instructions, H-Frame, 2-1
Hook to H-Frame Installation, 2-1
Manual Release Cable Installation, 2-2
Electrical Release Cable Installation, 2-3
Adel Clamp Installation, 2-4
Installation Instructions, Swing Frame, 2-5
Bungee Bracket Installation, 2-5
Hook to Gimbal Joint Installation, 2-6
Hook Bumper Installation, 2-6
Bungee Installation, 2-7
Manual Release Cable Installation, 2-7
Electrical Release Cable Installation, 2-8
Precautions, 2-9
Installation Check-Out, 2-10
Component Weights, 2-10
Cargo Hook Location, 2-10
Paper Work, 2-10
Section 3 Operation Instructions
Operating Procedures, 3-1
Cargo Hook Rigging, 3-2
Cargo Hook Loading, 3-3
Section 4 Maintenance
Inspection, 4-1
Adapter Overhaul, 4-1
Instructions for Returning a System to the Factory, 4-2
i
ii
CONTENTS, continued
Section 5 Certification
FAA STC, 5-1
Canadian STC, 5-2
Austro Control (EASA) STC, 5-3
Figures
2-1 Hook to H-Frame Installation, 2-1
2-2 Manual Release Cable Rig H frame, 2-2
2-3 Manual Release Cable Rig Adjusting, 2-3
2-4 Adel Clamp mounting, 2-4
2-5 Bungee Bracket Installation, 2-5
2-6 Hook to Gimbal Installation, 2-6
2-7 Hook Bumper Installation, 2-7
2-8 Manual Release Cable Rig, 2-8
2-9 Un-commanded Release From Incorrectly Secured Cable, 2-8
3-1 Examples of Recommended Cargo Hook Rigging, 3-2
3-2 Cargo Hook Loading, 3-3
Tables
1-1 Bill of Materials, 1-2
1-2 P/N 528-023-01 Cargo Hook Specifications, 1-3
2-1 Cargo Hook Connector, 2-3
2-2 Component Weights, 2-10
4-1 Inspection, 4-1
Section 1
General Information
Introduction
The P/N 200-270-00 Cargo Hook Kit is approved as a replacement on the
Lama SA 315B when modified by STC SH1735SW, which includes the
ERC H-Frame 17112 and cargo hook 14027-4.
The P/N 200-271-00 Cargo Hook Kit is approved as a replacement on the
Lama SA315B when equipped with the Hook A90B-100, Frame 315A73-
10-120 and Gimbal 3160S73-06-517.
Warnings, Cautions & Notes
The following definitions apply to Warnings, Cautions & Notes used in this manual.
Means that if this information is not observed, serious injury, death or immediate loss of flight
safety could occur.
Means that there is a risk of injury or degradation in performance of equipment if this information is not observed.
Draws the reader’s attention to information which may not be directly related to safety, but which is important or unusual.
General Information
1-1
Bill of Materials
The following items are included as listed in the H-Frame Kit P/N 200-270-00 and
Swing Frame Kit P/N 200-271-00. If shortages are found contact the company from whom the system was purchased.
Table 1-1 Bill of Materials
Part Number Description
120-100-00 Owner's Manual
121-010-00 RFM supplement
122-005-00 Cargo Hook Service Manual
232-070-00 Hook to Gimbal Adapter, H-Frame
232-071-00 Hook to Gimbal Adapter, Swing
290-332-00 Load Bolt
290-426-00 Hook to Manual Release Adapter
290-524-00 Hook Bumper
290-532-00 Hook to Manual Release Adapter
410-131-00 Electrical Connector
510-042-00 Washer AN960-10
510-091-00 Nut, 6-32 Esna
510-138-00 Screw, 6-32 1¼ FH SS
510-170-00 Nut, AN320-C6
510-174-00 Washer NAS1149F 0663P
510-178-00 Cotter Pin, MS24665-302
510-183-00 Washer, AN960-816L
510-252-00 Jam Nut, NAS 509-5C
510-257-00 Bolt NAS6603-H1
510-278-00 Washer, AN960-6
512-010-00 Adel Clamp
512-021-00 Adel Clamp #20
528-023-01 Cargo Hook
1
2
-
1
1
1
1
2
-
1
H-Frame
Kit quantities
200-270-00
1
1
-
1
1
1
2
-
-
-
1
1
-
1
2
4
-
-
-
-
1
4
1
Swing Frame
Kit quantities
200-271-00
1
-
1
1
1
-
2
4
4
-
2
1
1
1-2
General Information
Inspection
Inspect the kit items for evidence of damage, corrosion and security of lock wire and fasteners. If damage is evident, do not use the items until they are repaired.
Specifications
Table 1-2 P/N 528-023-01 Cargo Hook Specifications
Design load
Design ultimate strength
Electrical release capacity
Mechanical release capacity
Force required for mechanical release at 3,500 lb.
Electrical requirements
Minimum release load
Unit weight
Mating electrical connector
3,500 lb. (1,580 kg.)
13,125 lb. (5,952 kg.)
8,750 lb. (3,970 kg.)
8,750 lb. (3,970 kg.)
8 lb. Max.(.600” travel)
22-32 VDC 6.9 - 10 amps
0 pounds
3.0 pounds (1.35 kg.)
PC06A8-2S SR
Theory of Operation
The primary elements of the Cargo Hook are the load beam, the internal mechanism, and a DC solenoid. The load beam supports the load and is latched through the internal mechanism. The DC solenoid, an external manual release cable, and a manual release lever provide the means for unlatching the load beam.
The load is attached to the load beam by passing the cargo sling ring into the throat of the load beam and pushing the ring against the upper portion of the load beam throat, which will initiate the hook to close. In the closed position, a latch engages the load beam and latches it in this position.
To release the load, the latch is disengaged from the load beam. With the latch disengaged, the weight of the load causes the load beam to swing to its open position, and the cargo sling slides off the load beam. The load beam then remains in the open position awaiting the next load.
A load release can be initiated by three different methods. Normal release is achieved by pilot actuation of the push-button switch in the cockpit.
When the push-button switch is pressed, it energizes the DC solenoid in the Cargo Hook, and the solenoid opens the latch in the internal mechanism. In an emergency, release can be achieved by operating a mechanical release cable. The release cable operates the internal mechanism of the Cargo Hook to unlatch the load beam. The load can also be released by the actuation of a lever located on the side of the Cargo
Hook.
General Information
1-3
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Section 2
Installation Instructions
These procedures are provided for the benefit of experienced aircraft maintenance facilities capable of carrying out the procedures. They must not be attempted by those lacking the necessary expertise.
Removal of Existing Cargo Hook
Remove the old Cargo Hook from the aircraft by disconnecting the hook from the universal (gimbal) adapter on the H-frame or Swing frame.
Disconnect the manual and electrical release cables at the hook.
Installation Instructions, H-Frame
Hook to H-Frame Installation
Attach the new Cargo Hook to the Hook to Gimbal Adapter as shown below. The 232-070-00 Hook to Gimbal adapter is installed with the longer lower arm pointing to the rear of the hook. The interface tab on the adapter will prevent installation of the adapter in the opposite orientation. Attach the Hook to Gimbal adapter to the H-Frame Gimbal using the hardware supplied, as illustrated below. The cargo hook load beam tip should point forward
.
Figure 2-1 Hook to H-Frame Installation
H-FRAME
UNIVERSAL GIMBAL
NAS WASHER (2)
P/N 510-174-00
(NAS 1149F0663P)
MS COTTER PIN (2)
P/N 510-178-00
(MS24665-302)
AN NUT (2)
P/N 510-170-00
(AN 320-C6)
HOOK TO GIMBAL ADAPTER
P/N 232-070-00
LOAD BOLT (2)
P/N 290-332-00
AN WASHER (3)
P/N 510-183-00
(AN 960-816L)
MANUAL RELEASE KNOB
SIDE OF HOOK
CARGO HOOK
In two places, torque nut 510-170-00 on bolt 290-332-00 to 50 in-lb., then rotate nut to next castellation, not to exceed 110 in-lbs. Install and secure cotter pin 510-178-00.
Installation Instructions
2-1
Cargo Hook Installation, H-Frame, continued
Manual Release Cable Installation
Locate the Manual Release Cable and hold downs as illustrated below. As various Load Cell configurations may be utilized the exact routing and position of the cable and hold downs should be determined upon installation. In determining the location make sure that the Cargo Hook is free to move in all possible direction without straining or kinking the
Manual Release Cable, and that the bend radius of the mechanical release cable is as large as possible.
Because the new cargo hook provides additional ground clearance, use of the original bungee cord is optional. If needed, install the Bungee cord as illustrated below in figure 2-2 and figure 2-4.
Figure 2-2 Manual Release Cable Rig H-frame
Remove the manual release cover from the new cargo hook. Thread the hook to manual release adapter, P/N 290-426-00 into the new cargo hook manual release boss on the hook sideplate. Place the cable ball end fitting into the hook manual release lever fork as illustrated in Figure 2-3. Rotate the manual release lever in the clockwise direction to remove free play (this is readily felt as the lever moves easily for several degrees before encountering greater resistance) . Measure the cable ball end free play with the manual release handle in the cockpit in the non-release position and the cargo hook in the closed and locked position. Adjust the manual release cable system for a minimum of .125” of freeplay at the fork fitting as shown in Figure 2-3. Tighten the jam nut against the hook and secure with safety wire. Replace the manual release cover and secure the screws with safety wire.
2-2
Installation Instructions
Cargo Hook Installation, H-Frame, continued
Manual release cable rigging must be done with the cargo hook load beam in the closed and locked position.
Figure 2-3 Manual Release Cable Adjusting
boss jam nut manual release lever
Manual Release Cable Adapter fork
release cable
.125" min.
(3.2 mm) cable ball end
Load beam must be closed
and locked when rigging.
Electrical Release Cable Installation
It will be necessary to replace the connector on the electrical release cable with the one supplied with the Cargo Hook Kit.
Connect the cargo hook electrical release cable connector to the Cargo
Hook and belly mounted bulk-head receptacle and safety wire the connector. Listed below is the pin out for the cargo hook connector.
Table 2-1 Cargo Hook Connector
Pin Function
A Ground
B Positive
Installation Instructions
The Cargo Hook is equipped with a suppression diode that will be damaged if the Cargo Hook electrical connections are reversed. Do not attach the electrical connector until the polarity of the aircraft connector is determined to be compatible with the Cargo Hook connector listed in Table 2-
1.
2-3
Cargo Hook Installation, H-Frame, continued
Adel Clamp Installation
Re-use of the bungee cord, used to secure the cargo hook, is optional. The new cargo hook provides additional ground clearance making its use unnecessary in most conditions. If the bungee cord is to be used secure the 2 supplied adel clamps, P/N 512-010-00, to the cargo hook bolts using P/N
510-257-00 bolts and P/N 510-042-00 washers as illustrated below. Torque the bolts to 20-25 in-lbs. Secure the bolts with safety wire.
Figure 2-4 Adel Clamp mounting
The H-frame installation is complete at this point, proceed to the installation checkout.
2-4
Installation Instructions
Installation Instructions Swing-Frame
Bungee Bracket Installation
Re-use of the Bungee cord, used to secure the cargo hook is optional. The new cargo hook provides additional ground clearance, making the bungee cords use unnecessary in most conditions. If the bungee cord is to be used, attach the Adel Clamp P/N 512-010-00 to the manual release side of the cargo hook with a P/N 510-257-00 bolt and P/N 510-042-00 washer as illustrated. Torque the bolt to 20-25 in-lbs.
Figure 2-5 Bungee Bracket Installation
ADEL CLAMP
512-010-00
BOLT
510-257-00
WASHER
510-042-00
Installation Instructions
2-5
Cargo Hook Installation, Swing Frame, continued
Hook to Gimbal Joint Installation
Inspect the swing assembly components to ensure that they are in serviceable condition. Attach the new Cargo Hook to the Gimbal Adapter.
The 232-071-00 Gimbal adapter is installed on the cargo hook with the longer lower arm pointing to the rear of the hook. The hook interface tab on the adapter will prevent installation of the adapter in the opposite orientation. Attach the cargo hook and Gimbal adapter to the Swing Frame
Gimbal, using existing hardware and the hardware supplied as illustrated below. The cargo hook load beam should point aft.
Figure 2-6 Hook to Gimbal Installation
SWING-FRAME
NAS WASHER
P/N 510-174-00
(NAS 1149F0663P)
MS COTTER PIN
P/N 510-178-00
(MS24665-302)
AN NUT
P/N 510-170-00
(AN 320-C6)
CARGO HOOK
GIMBAL JOINT
EXISTING HARDWARE
HOOK TO GIMBAL ADAPTER
P/N 232-071-00
LOAD BOLT
P/N 290-332-00
AN WASHER (2)
P/N 510-183-00
(AN 960-816L)
MANUAL RELEASE KNOB
SIDE OF HOOK
In two places, torque nut 510-170-00 on bolt 290-332-00 to 50 in-lb., then rotate nut to next castellation, not to exceed 110 in-lbs. Install and secure cotter pin 510-178-00.
Hook Bumper Installation
Attach the two Hook Bumpers to the Swing Frame, as illustrated in figure 2-7 using the hardware provided. Do not use the new hook without the Hook Bumpers as they protect the manual release fitting and the electrical release connector from damage when the hook swings about.
2-6
Installation Instructions
Cargo Hook Installation, Swing Frame, continued
Figure 2-7 Hook Bumper Installation
Bungee Installation
Attach the bungee hook to the adel clamp on the cargo hook.
Manual Release Cable Installation
Remove the manual release cover from the new Cargo Hook. Thread the
Hook to Manual Release Adapter, P/N 290-532-00 into the new Cargo
Hook. Connect the manual release cable to the Adapter. Place the cable ball end fitting into the hook manual release lever fork as illustrated in Figure 2-
8. Rotate the manual release lever in the clockwise direction until the boss on its underside contacts the cam stop and hold in this position. Measure the cable ball end free play with the manual release handle in the cockpit in the non-release position. Adjust the manual release cable system for a minimum of .125” of freeplay at the fork fitting as shown in Figure 2-8.
Installation Instructions
2-7
Cargo Hook Installation, Swing Frame, continued
Manual release cable rigging must be done with the cargo hook in the closed and locked position.
Figure 2-8 Manual Release Cable Rig
MANUAL RELEASE CABLE
MANUAL RELEASE LEVER
FORK FITTING
BALL END FITTING
RELEASE ADAPTER
LOAD BEAM MUST BE CLOSED
AND LOCKED FOR RIGGING
Electrical Release Cable Installation
It will be necessary to replace the connector on the electrical release cable with the one supplied with the Cargo Hook Kit. See table 2-1 for the pin out for the cargo hook connector and corresponding wire numbers.
Wire NM10T4 is for a hook open indicator light. The P/N 528-023-01
Cargo Hook does not have a hook open switch. Insulate and secure the end of this wire. If hook open indication is desired, contact the factory as this feature can be added to the P/N 528-023-01 Cargo Hook.
Connect the cargo hook electrical release cable connector to the Cargo
Hook and secure with safety wire.
The Cargo Hook is equipped with a suppression diode that will be damaged if the Cargo Hook electrical connections are reversed. Do not attach the electrical connector until the polarity of the aircraft connector is determined to be compatible with the Cargo Hook connector listed in Table 2-
1.
2-8
Installation Instructions
Precautions
Un-commanded cargo hook release will happen if the manual and electrical release cables are improperly restrained. The cables must not be the stops that prevent the Cargo Hook from swinging freely in all directions. If the Cargo Hook loads cause the hook to strain against the manual release cable the swaged end of the cable may separate allowing the inner cable to activate the cargo hook manual release mechanism. The result is an un-commanded release. Ensure that no combination of cyclic stick or Cargo Hook position is restrained by the manual or electrical release cables.
Figure 2-9 Un-commanded Release From Incorrectly Secured Cable
Installation Instructions
2-9
Installation Check-Out
After installation of the Cargo Hook Kit, perform the following functional checks.
1. Swing the installed Cargo Hook to ensure that the manual release cable assembly and the electrical release cable have enough slack to allow full swing of the suspension assembly without straining or damaging the cables. The cables must not be the stops that prevent the Cargo
Hook from swinging freely in all directions.
2. With no load on the cargo hook load beam, pull the handle operated cargo hook mechanical release, the Cargo Hook should release. Reset the cargo hook load beam.
3. Close the cargo hook release circuit breaker and position the battery switch to the ON position. With no load on the cargo hook load beam, depress the cargo hook electrical release button, the Cargo Hook should release. Reset the cargo hook load beam
4. See the service instructions for your specific helicopter model for additional installation instructions.
Component Weights
The weight of the Cargo Hook Kit components are listed below.
Table 2-2 Component Weights
Item Weight lbs (kgs)
Cargo Hook
Manual Release Cable
Electrical Release Cable
3.0 (1.36)
1.0 (0.45)
0.5 (0.23)
Cargo Hook Location
See the Eurocopter provided Flight Manual Supplement for External Load weight and balance data.
Paper Work
In the US, fill in FAA form 337 for the initial installation. This procedure may vary in different countries. Make the appropriate aircraft log book entry. Insert the Rotorcraft Flight Manual Supplement 121-010-00 into the
Rotorcraft Flight Manual.
2-10
Installation Instructions
Section 3
Operation Instructions
Operating Procedures
Prior to each cargo hook use perform the following:
1. Ensure that the Cargo Hook Kit has been properly installed and that the manual and electrical release cables do not limit the movement of the hook.
2. Be completely familiar with this Owner’s Manual.
3. Be completely familiar with all the aircraft’s Cargo Hook operating instructions.
4. Activate the electrical system and press the Cargo Hook release button to ensure the cargo hook electrical release is operating correctly. The mechanism should operate smoothly and the Cargo Hook must release.
Reset the hook by hand after the release. If the hook does not release or re-latch, do not use the unit until the difficulty is resolved.
The release solenoid is intended to be energized only intermittently. Depressing the electrical release button continuously in excess of 20 sec. will cause the release solenoid to overheat, possibly causing permanent damage.
5. Activate the manual release lever to test the cargo hook manual release mechanism. The mechanism should operate smoothly and the Cargo
Hook must release. Reset the hook by hand after release. If the hook does not release or re-latch do not use the unit until the difficulty is resolved.
See the Cargo Hook Service Manual 122-005-00 and the aircraft’s service instructions that cover the original Cargo Hook installation for additional instructions.
Operation Instructions
3-1
Cargo Hook Rigging
Extreme care must be exercised when rigging a load to the Cargo Hook.
Steel load rings are recommended to provide consistent release performance and resistance to fouling. The following illustration shows the recommended rigging, but is not intended to represent all rigging possibilities.
Some combinations of small primary rings and large secondary rings could cause fouling during release.
It is the responsibility of the operator to assure the cargo hook will function properly with each rigging.
Nylon Type Straps and Rope
Nylon type straps (or similar material) or rope must not be used directly on the cargo hook load beam. If nylon straps or rope must be used they should be first attached to a steel primary ring.
Verify that the ring will freely slide off the load beam when it is opened. Only the primary ring should be in contact with the cargo hook load beam.
Figure 3-1 Example of Recommended Cargo Hook Rigging
3-2
SECONDARY RING
LOAD
PRIMARY RING
Operation Instructions
Cargo Hook Loading
The cargo hook can easily be loaded with one hand. A load is attached to the hook by pushing the ring upward against the upper portion of the load beam throat, as illustrated in Figure 3-2, until an internal latch engages the load beam and latches it in the closed position.
Figure 3-2 Cargo Hook Loading
Operation Instructions
3-3
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Section 4
Maintenance
Refer to Service Manual 122-005-00 for detailed maintenance information for the Cargo Hook.
Inspection
The inspection of the Cargo Hook Kit shall be in accordance with the table 4-1 shown below.
Table 4-1 Inspection
Part
Number
Daily Inspection
At Overhaul Interval
*
528-023-01
Cargo Hook
232-070-00
232-071-00
Gimbal Adapter
Refer to Service Manual 122-005-00. Refer to Service Manual 122-005-00.
Inspect for security of attachment, fasteners, excessive wear or cracks.
Replace if damage or cracks found.
Inspect to the requirements of this manual. Overhaul at the same interval as the Cargo Hook.
* Refer to Service Manual 122-005-00 for overhaul interval for the Cargo Hook.
Adapter Overhaul
Carefully inspect the adapter in accordance with Table 4-1 in a clean, well lit room.
Inspect the bushing and bearing surfaces for wear and corrosion. Pitting, corrosion or excessive wear is cause for rejection. Maximum permissible bushing clearance is .004” on diameter.
Perform Magnetic Particle Inspection on adapter 232-070-00 (or 232-071-
00) in accordance with ASTM E-1444 and MIL-STD-1907, Grade A. No cracks are permitted.
Maintenance
4-1
Instructions for Returning Equipment to the Factory
If an Onboard Systems product must be returned to the factory for any reason (including returns, service, repairs, overhaul, etc) obtain an RMA number before shipping your return.
An RMA number is required for all equipment returns.
To obtain an RMA, please use one of the listed methods.
Contact Technical Support by phone or e-mail
Generate an RMA number at our website: http://www.onboardsystems.com/rma.php
After you have obtained the RMA number, please be sure to:
Package the component carefully to ensure safe transit.
Write the RMA number on the outside of the box or on the mailing label.
Include the RMA number and reason for the return on your purchase or work order.
Include your name, address, phone and fax number and email (as applicable).
Return the components freight, cartage, insurance and customs prepaid to:
Onboard Systems
13915 NW 3rd Court
Vancouver, Washington 98685
USA
Phone: 360-546-3072
4-2
Maintenance
Appendix A Certification Documentation
FAA STC
Certification
5-1
Canadian STC
5-2
Certification
Austro Control (EASA) STC
Certification
5-3
Advertisement
Key features
- FAA, Canadian and Austro Control (EASA) approved
- Designed for Lama series helicopters
- H-Frame and Frame Swing configurations
- Manual and electrical release options
- Secure and reliable cargo attachment and release