Maxon P7000-K Specifications

M-04-04
REV. E
JUNE 2009
MAINTENANCE MANUAL
GPTLR-25, GPTLR-33, GPTLR-44, & GPTLR-55
© MAXON Lift Corp. 2009
11921 Slauson Ave.
Santa Fe Springs, CA. 90670
LIFT CORP.
CUSTOMER SERVICE:
TELEPHONE (562) 464-0099 TOLL FREE (800) 227-4116
FAX: (888) 771-7713
NOTE: For latest version of all Manuals (and replacements), download the
Manuals from Maxon’s website at www.maxonlift.com.
WARRANTY/ RMA POLICY & PROCEDURE
LIFTGATE WARRANTY
Type of Warranty:
Full Parts and Labor
Term of Warranty:
Standard Liftgates - 2 years from ship date or 6,000 cycles
Premium Liftgates - 2 years from ship date or 10,000 cycles
This warranty shall not apply unless the product is installed, operated and maintained in accordance with MAXON Lift’s specifications as set forth in
MAXON Lift’s Installation, Operation and Maintenance manuals. This warranty does not cover normal wear, maintenance or adjustments, damage or
malfunction caused by improper handling, installation, abuse, misuse, negligence, or carelessness of operation. In addition, this warranty does not
cover equipment that has had unauthorized modifications or alterations made to the product.
MAXON agrees to replace any components which are found to be defective during the first 2 years of service, and will reimburse for labor based on
MAXON’s Liftgate Warranty Flat Rate Schedule. (Copy of the Flat Rate is available at www.maxonlift.com.)
All warranty repairs must be performed by an authorized MAXON warranty facility. For any repairs that may exceed $500, including parts and labor,
MAXON’s Technical Service Department must be notified and an “Authorization Number” obtained.
All claims for warranty must be received within 30 Days of the repair date, and include the following information:
1. Liftgate Model Number and Serial Number
2. The End User must be referenced on the claim
3. Detailed Description of Problem
4. Corrective Action Taken, and Date of Repair
5. Parts used for Repair, Including MAXON Part Number(s)
6. MAXON R.M.A. # and/or Authorization # if applicable (see below)
7. Person contacted at MAXON if applicable
8. Claim must show detailed information i.e. Labor rate and hours of work performed
Warranty claims can also be placed online at www.maxonlift.com. Online claims will be given priority processing.
All claims for warranty will be denied if paperwork has not been received or claim submitted via Maxon website for processing by MAXON’s Warranty
Department within 30 days of repair date.
All components may be subject to return for inspection, prior to the claim being processed. MAXON products may not be returned without prior written
approval from MAXON’s Technical Service Department. Returns must be accompanied by a copy of the original invoice or reference with original
invoice number and are subject to a credit deduction to cover handling charges and any necessary reconditioning costs. Unauthorized returns will be
refused and will become the responsibility of the returnee.
Any goods being returned to MAXON Lift must be pre-approved for return, and have the R.M.A. number written on the outside of the package in plain
view, and returned freight prepaid. All returns are subject to a 15% handling charge if not accompanied by a detailed packing list. Returned parts
are subject to no credit and returned back to the customer. Defective parts requested for return must be returned within 30 days of the claim date for
consideration to:
MAXON Lift Corp.
10321 Greenleaf Ave., Santa Fe Springs, CA 90670
Attn: RMA#__
MAXON’s warranty policy does not include the reimbursement for travel time, towing, vehicle rental, service calls, oil, batteries or loss of income due to
downtime. Fabrication or use of non Maxon parts, which are available from MAXON, are also not covered.
MAXON’s Flat Rate Labor Schedule takes into consideration the time required for diagnosis of a problem.
All Liftgates returned are subject to inspection and a 15% restocking fee. Any returned Liftgates or components that have been installed or not returned
in new condition will be subject to an additional reworking charge, which will be based upon the labor and material cost required to return the Liftgate or
component to new condition.
PURCHASE PART WARRANTY
Term of Warranty: 1 Year from Date of Purchase.
Type of Warranty: Part replacement only. MAXON will guarantee all returned genuine MAXON replacement parts upon receipt and inspection of parts
and original invoice.
All warranty replacements parts will be sent out via ground freight. If a rush shipment is requested, all freight charges will be billed to the requesting
party.
TABLE OF CONTENTS
WARNINGS ........................................................................................................................... 6
SAFETY INSTRUCTIONS .................................................................................................... 6
LIFTGATE TERMINOLOGY .................................................................................................. 9
PERIODIC MAINTENANCE................................................................................................ 10
PERIODIC MAINTENANCE CHECKS ................................................................................ 10
PERIODIC MAINTENANCE CHECKLIST ........................................................................... 13
CHECKING HYDRAULIC FLUID ........................................................................................ 15
CHANGING HYDRAULIC FLUID ........................................................................................ 17
PLATFORM TORSION SPRING ADJUSTMENT ................................................................ 20
REPLACING PLATFORM TORSION SPRING ................................................................... 23
PARTS BREAKDOWN ....................................................................................................... 25
MAIN ASSEMBLY: GPTLR-25 & GPTLR-33 (ALUMINUM PLATFORM) ............................ 25
MAIN ASSEMBLY: GPTLR-44 & GPTLR-55 (ALUMINUM PLATFORM) ............................ 29
MAIN ASSEMBLY: GPTLR-25 & GPTLR-33 (STEEL PLATFORM & RAMP OPTION) ...... 33
MAIN FRAME, LIFTING ARMS, & PARALLEL ARMS: GPTLR-25 & GPTLR-33 ................ 37
MAIN FRAME, LIFTING ARMS, & PARALLEL ARMS: GPTLR-44 & GPTLR-55 ................ 41
OPENER (GPTLR-25 & GPTLR-33) ................................................................................... 45
OPENER (GPTLR-44 & GPTLR-55) ................................................................................... 46
LH & RH PLATFORM SEATS: GPTLR-25 & GPTLR-33 (ALUMINUM PLATFORM WITH
FIXED RAMP OR CART STOPS ONLY) ............................................................................. 47
LH & RH PLATFORM SEATS: GPTLR-25 & GPTLR-33 (ALUMINUM PLATFORM WITH
RETENTION RAMP ONLY) ................................................................................................. 48
LH & RH PLATFORM SEATS: GPTLR-25 & GPTLR-33 (STEEL PLATFORM ONLY) ....... 49
LH & RH PLATFORM SEATS: GPTLR-44 & GPTLR-55 (ONLY ALUMINUM PLATFORM
WITH FIXED RAMP OR CART STOPS) ............................................................................. 50
LH & RH PLATFORM SEATS: GPTLR-44 & GPTLR-55 (ONLY PLATFORM WITH
RETENTION RAMP) ........................................................................................................... 51
PLATFORM & FLIPOVER ASSEMBLY (ALUMINUM)......................................................... 53
PLATFORM & FLIPOVER ASSEMBLY WITH CART STOPS (ALUMINUM)....................... 55
FLIPOVER WITH SINGLE CART STOP (ALUMINUM) ...................................................... 57
FLIPOVER WITH DUAL CART STOPS (ALUMINUM) ........................................................ 59
PLATFORM & FLIPOVER ASSEMBLY WITH SINGLE
RETENTION RAMP (ALUMINUM) ...................................................................................... 61
FLIPOVER WITH SINGLE RETENTION RAMP (ALUMINUM)........................................... 63
PLATFORM & FLIPOVER ASSEMBLY (STEEL) ................................................................ 65
PUMP COVER & MOUNTING PLATE ASSEMBLY (GRAVITY DOWN) ............................. 67
PUMP COVER & MOUNTING PLATE ASSEMBLY (POWER DOWN) ............................... 68
GRAVITY DOWN HYDRAULIC COMPONENTS ................................................................ 69
POWER DOWN HYDRAULIC COMPONENTS .................................................................. 71
12 VDC POWER UNIT (GRAVITY DOWN) ......................................................................... 73
12 VDC POWER UNIT (POWER DOWN)........................................................................... 75
DECALS .............................................................................................................................. 77
NONSKID & SAFETY STRIPING ........................................................................................ 79
CONTROL SWITCH AND POWER CABLE ........................................................................ 80
SYSTEM DIAGRAMS ......................................................................................................... 81
PUMP & MOTOR SOLENOID OPERATION (GRAVITY DOWN) ........................................ 81
PUMP & MOTOR SOLENOID OPERATION (POWER DOWN).......................................... 82
HYDRAULIC SCHEMATIC (GRAVITY DOWN)................................................................... 83
HYDRAULIC SCHEMATIC (POWER DOWN) .................................................................... 84
ELECTRICAL SCHEMATIC (GRAVITY DOWN) ................................................................. 85
ELECTRICAL SCHEMATIC (POWER DOWN) ................................................................... 86
RECOMMENDED BOLT TORQUES .................................................................................. 87
TROUBLESHOOTING ........................................................................................................ 89
PLATFORM WILL NOT RAISE & MOTOR WILL NOT RUN ............................................... 89
PLATFORM WILL NOT RAISE, BUT MOTOR RUNS ......................................................... 90
PLATFORM RAISES BUT LEAKS DOWN .......................................................................... 91
PLATFORM RAISES PARTIALLY AND STOPS .................................................................. 93
LIFTGATE WILL NOT LIFT RATED CAPACITY .................................................................. 95
PLATFORM WILL NOT LOWER, LOWERS TOO SLOWLY, OR TOO QUICKLY ..................... 97
Comply with the following WARNINGS and SAFETY INSTRUCTIONS while maintaining
Liftgates. See Operation Manual for operating safety requirements.
WARNINGS
!
WARNING
• Do not stand, or allow obstructions, under the platform when lowering the Liftgate. Be sure your
feet are clear of the Liftgate.
• Keep fingers, hands, arms, legs, and feet clear of moving Liftgate parts (and platform
edges) when operating the Liftgate.
• Correctly stow platform when not in use. Extended platforms could create a hazard for
people and vehicles passing by.
• Disconnect Liftgate power cable from battery before repairing or servicing Liftgate.
• If it is necessary to stand on the platform while maintaining the Liftgate, keep your feet and any
objects clear of the inboard edge of the platform. Your feet or objects on the platform can become
trapped between the platform and the Liftgate extension plate.
• Recommended practices for welding on steel parts are contained in the current AWS (American
Welding Society) D1.1 Structural Welding Code - Steel. Damage to Liftgate and/or vehicle, and
personal injury could result from welds that are done incorrectly.
• Recommended practices for welding on aluminum parts are contained in the current AWS
(American Welding Society) D2.1 Structural Welding Code - Aluminum. Damage to Liftgate
and/or vehicle, and personal injury could result from welds that are done incorrectly.
SAFETY INSTRUCTIONS
SAFETY INSTRUCTIONS
• Read and understand the instructions in this Maintenance Manual before performing maintenance on the Liftgate.
• Before operating the Liftgate, read and understand the operating instructions in Operation
Manual.
• Comply with all WARNING and instruction decals attached to the Liftgate.
• Keep decals clean and legible. If decals are illegible or missing, replace them. Free replacement
decals are available from Maxon Customer Service.
• Consider the safety and location of bystanders and location of nearby objects when operating the
Liftgate. Stand to one side of the platform while operating the Liftgate.
• Do not allow untrained persons to operate the Liftgate.
• Wear appropriate safety equipment such as protective eyeglasses, faceshield and clothing while
performing maintenance on the Liftgate and handling the battery. Debris from drilling and contact
with battery acid may injure unprotected eyes and skin.
• Be careful working by an automotive type battery. Make sure the work area is well ventilated and
there are no flames or sparks near the battery. Never lay objects on the battery that can short the
terminals together. If battery acid gets in your eyes, immediately seek first aid. If acid gets on your
skin, immediately wash it off with soap and water.
• A correctly installed Liftgate operates smoothly and reasonably quiet. The only noticeable noise
during operation comes from the power unit while the platform is raised. Listen for scraping, grating and binding noises and correct the problem before continuing to operate Liftgate.
• Use only Maxon Authorized Parts for replacement parts. Provide Liftgate model and serial number information with your parts order. Order replacement parts from:
MAXON LIFT CORP. Customer Service
11921 Slauson Ave., Santa Fe Springs, CA 90670
Online: www.maxonlift.com
Express Parts Ordering: Phone (800) 227-4116 ext. 4345
Email: Ask your Customer Service representative
7
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• If an emergency situation arises (vehicle or Liftgate) while operating the Liftgate, release the control switch to stop the Liftgate.
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THIS PAGE WAS INTENTIONALLY LEFT BLANK
8
EXTENSION
PLATE
CONTROL
SWITCH
LIFT
CYLINDER
PARALLEL
ARM
PUMP
BOX
PLATFORM
SPRING ASSIST
TORSION BAR
HYDRAULIC
LOCK
TORSION SPRING
MAIN
FRAME
PLATFORM
OPENER
FLIPOVER WITH
FIXED RAMP
9
LIFT
ARM
PLATFORM
SUPPORT
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LIFTGATE TERMINOLOGY
PERIODIC MAINTENANCE
PERIODIC MAINTENANCE CHECKS
! WARNING
Never operate the Liftgate if parts are loose or missing.
NOTE: Make sure vehicle is parked on level ground while performing the
maintenance checks.
Quarterly or 1250 Cycles (whichever occurs first)
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
Check the hydraulic fluid level in the pump reservoir. Refer to the CHECKING HYDRAULIC
FLUID procedure in the PERIODIC MAINTENANCE section.
If hydraulic fluid appears contaminated, refer to the CHANGING HYDRAULIC FLUID
procedure in the PERIODIC MAINTENANCE section.
Keep track of the grade of hydraulic fluid in the pump reservoir. Never mix two different
grades of fluid.
Check all hoses and fittings for chafing and fluid leaks. Make sure hydraulic lock is in place
and undamaged. Replace if necessary.
Check electrical wiring for chafing and make sure wiring connections are tight and free of
corrosion.
Check that all WARNING and instruction decals, nonskid stickers, and safety striping
are in place. Also, make sure decals are legible and decals, nonskid, and safety striping are
clean and undamaged.
Check that all roll pins are in place and protrude evenly from both sides of hinge pin collar.
Replace roll pins if necessary.
Check both platform torsion springs to make sure there is grease between the coils. If
grease is not visible in the valley between each coil, apply spray-on white lithium grease.
CAUTION
Damaged cylinder seals and contaminated hydraulic fluid can result from painting the polished portion of the cylinder rod. To prevent damage, protect the
exposed polished portion of the cylinder rod while painting.
Check for rust and oily surfaces on Liftgate. If there is rust or oil on Liftgate, clean it off.
Touch up the paint where bare metal is showing. MAXON recommends using the aluminum
primer touchup paint kit, P/N 908134-01.
Semi-annually or 2500 Cycles (whichever occurs first)
Visually check the platform hinge pins for excessive wear and broken welds. See PARTS
BREAKDOWN section for replacement parts. Also, do the Quarterly or 1250 Cycles
maintenance checks.
10
Annually or 5000 Cycles (whichever occurs first)
Visually check the entire Liftgate for excessively worn
parts and broken welds, especially hinge pins. See
PARTS BREAKDOWN section for replacement parts.
Check the platform and flipover as follows. Unfold
the platform and flipover. Raise the platform to
vehicle bed height and then lower it to the ground.
Check if the shackles and tip of flipover touch the
ground at the same time (FIG. 11-1). With the
shackles touching, tip of a ramp-style flipover may
be no more than 1/4” above the ground. A flipover
equipped with retention ramp may have a maximum
2” of ground clearance at the tip of the flipover.
If the shackles are 1” or more above the ground
when the tip of the flipover is touching the ground,
perform the ADJUST PLATFORM procedure in
the Installation Manual (M-04-06). If the adjustment does not correct the problem, check pins and
bearings at the pivot points on both sides of the
Liftgate (see FIG. 11-3). See PARTS BREAKDOWN section for replacement parts.
1/4” (MAX.)
(SEE NOTE)
TIP OF
STANDARD
FLIPOVER
SHACKLE
PLATFORM & SHACKLES
TOUCHING THE GROUND
FIG. 11-1
TIP OF
FLIPOVER
1”
(OR MORE)
SHACKLE
SHACKLES NOT TOUCHING
THE GROUND
FIG. 11-2
Also, for aluminum flipovers
LIFT
CYLINDER
equipped with single retention ramp and for steel
LIFT ARM
flipovers, ensure latch is
PARALLEL
in place, undamaged, and
ARM
working correctly. See
PARTS BREAKDOWN sec- PLATFORM
tion for replacement parts.
PIVOT POINTS
(PINS & BEARINGS)
PIVOT POINTS TO CHECK
FIG. 11-3
11
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PERIODIC MAINTENANCE CHECKS - Continued
PERIODIC MAINTENANCE
Annually or 5000 Cycles - Continued
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To prevent unnecessary wear
on parallel arms, check for worn
thrust bearings as follows. Position the platform 1”-2” above
ground (FIG. 12-1A). Push
against the shackle (Item 1, FIG.
12-1B) and measure clearance (Item 1, FIG. 12-1B).
Then, push against other side of
shackle (Item 2, FIG. 12-1B)
and measure clearance (Item
2, FIG. 12-1B). Repeat for LH
side shackle. If clearance is less
than 0.050”, replace thrust bearing. See PARTS BREAKDOWN
section for replacement parts.
Also, do the Semi-annual or
2500 Cycles and Quarterly
or 1250 Cycles checks.
THRUST BEARINGS
PARALLEL
ARM
SHACKLE
0.050”
(MIN.)
0.050”
(MIN.)
CHECKING SHACKLE
CLEARANCES (RH SIDE SHOWN)
FIG. 12-1B
1”-2”
PLATFORM AT GROUND LEVEL
FIG. 12-1A
12
PERIODIC MAINTENANCE CHECKLIST
Quarterly or 1250 Cycles (whichever occurs first)
Check the level and condition of the hydraulic fluid.
Visually check all hoses and fittings for chafing and fluid leaks, and check hydraulic lock.
Check electrical wiring for chafing and make sure wiring connections are tight and free
of corrosion.
Check that all WARNING and instruction decals, nonskid stickers, and safety striping are in place. Also, make sure decals are legible and decals, nonskid, and safety
striping are clean and undamaged.
Check that all roll pins are in place and protrude evenly from both sides of hinge pin collar. Replace roll pins if necessary.
Check for rust and oily surfaces on Liftgate. If there is rust or oil on Liftgate or if the Liftgate is dirty, clean it off. Touch up the paint where bare metal is showing.
Check both platform torsion springs to make sure there is grease in the valley between
each coil. If grease is not visible, apply spray-on white lithium grease to the valley between each coil.
Semi-annually or 2500 Cycles (whichever occurs first)
Visually check the platform hinge pins for excessive wear and broken welds.
Do the Quarterly or 1250 Cycles Checks on this checklist.
Annually or 5000 Cycles (whichever occurs first)
Visually check the entire Liftgate for excessively worn parts and broken welds, especially hinge pins.
Visually check platform & flipover. (See the PERIODIC MAINTENANCE CHECKS topic
for more information.)
Visually check the thrust bearings on the shackles.
Do the Semi-annual or 2500 Cycles Checks on this checklist.
Do the Quarterly or 1250 Cycles Checks on this checklist.
For more details pertaining to this checklist, see the PERIODIC MAINTENANCE CHECKS
section in this Maintenance Manual.
13
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NOTE: Make sure vehicle is parked on level ground while performing maintenance checks.
PERIODIC MAINTENANCE
CHECKING HYDRAULIC FLUID
CAUTION
Keep dirt, water and other contaminants from entering the hydraulic system.
Before opening the hydraulic fluid reservoir filler cap, drain plug and hydraulic lines, clean up contaminants that can get in the openings. Also, protect the
openings from accidental contamination.
NOTE: Use correct grade of hydraulic fluid for your location.
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
+50 to +120 Degrees F - Grade ISO 32
Below + 70 Degrees F - Grade ISO 15 or MIL-H-5606
See TABLES 15-1 & 15-2 for recommended brands.
1. Unbolt and remove pump cover
(FIG. 14-1).
2. Check the hydraulic fluid level in
reservoir as follows. With Liftgate
stowed, or platform at vehicle bed
height, level should be as shown in
FIG. 14-2.
NUTS
(2 PLACES)
NOTE: If the hydraulic fluid in the
reservoir is contaminated, do
the CHANGING HYDRAULIC
FLUID procedure in this section.
POWER UNIT
(REF)
LONGER SIDE OF
HOLDER FLATS
BUTT AGAINST
COVER
FLAT WASHERS
(2 PLACES)
3. If needed, add fluid to the reservoir as
follows. Pull out (no threads) filler cap
(FIG. 14-2). Fill the reservoir with hydraulic fluid to level shown in FIG. 142. Reinstall filler cap (FIG. 14-2).
PUMP COVER
BOLTS
(2 PLACES)
UNBOLTING / BOLTING PUMP COVER
FIG. 14-1
CAUTION
FILLER
CAP
Pump cover must be correctly secured to prevent it from becoming
a hazard. To secure pump cover,
the long side of the holder flats
must butt against pump cover as
shown in the illustration.
RESERVOIR
2”
4. Bolt on the pump cover as shown in
FIG. 14-1. Torque the 5/16”-18 cover
bolts from 10 to 14 lbs.-ft.
POWER UNIT FLUID LEVEL
FIG. 14-2
14
ISO 32 HYDRAULIC OIL
RECOMMENDED
BRANDS
PART NUMBER
AMSOIL
AWH-05
CHEVRON
HIPERSYN 32
KENDALL
GOLDEN MV
SHELL
TELLUS T-32
EXXON
UNIVIS N-32
MOBIL
DTE-13M, DTE-24,
HYDRAULIC OIL-13
TABLE 15-1
ISO 15 OR MIL-H-5606 HYDRAULIC OIL
RECOMMENDED
BRANDS
PART NUMBER
AMSOIL
AWF-05
CHEVRON
FLUID A, AW-MV-15
KENDALL
GLACIAL BLU
SHELL
TELLUS T-15
EXXON
UNIVIS HVI-13
MOBIL
DTE-11M
ROSEMEAD
THS FLUID 17111
TABLE 15-2
15
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CHECKING HYDRAULIC FLUID - Continued
PERIODIC MAINTENANCE
CHANGING HYDRAULIC FLUID
CAUTION
Keep dirt, water and other contaminants from entering the hydraulic system.
Before opening the hydraulic fluid reservoir filler cap, drain plug and hydraulic lines, clean up contaminants that can get in the openings. Also, protect the
openings from accidental contamination.
NOTE: Use correct grade of hydraulic fluid for your location.
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
+50 to +120 Degrees F - Grade ISO 32
Below + 70 Degrees F - Grade ISO 15 or MIL-H-5606
See TABLES 15-1 & 15-2 for recommended brands.
GRAVITY DOWN & POWER DOWN LIFTGATES
1. Unbolt and remove pump cover
(FIG. 16-1). Place empty 5
gallon bucket under drain plug
(FIG. 16-2).
NUTS
(2 PLACES)
POWER UNIT
(REF)
LONGER SIDE OF
HOLDER FLATS
BUTT AGAINST
COVER
FLAT WASHERS
(2 PLACES)
PUMP COVER
BOLTS
(2 PLACES)
UNBOLTING PUMP COVER
FIG. 16-1
DRAIN PLUG
FIG. 16-2
16
1. Lower platform to ground. Pull out (no
threads) drain plug (FIG. 17-1). Drain
hydraulic fluid from system. Reinstall
drain plug.
FILLER
CAP
RESERVOIR
2. Pull out (no threads) filler cap (FIG. 17-1)
and refill reservoir with hydraulic fluid to level
shown in FIG. 17-1. Reinstall filler cap (FIG.
17-1).
2”
3. Stow the Lift and do the CHECKING HYDRAULIC FLUID procedure in this section of the
manual.
DRAIN PLUG
GRAVITY DOWN PUMP & MOTOR
FIG. 17-1
POWER DOWN LIFTGATES
1. Open and raise platform to vehicle bed height. Pull out
(no threads) drain plug (FIG. 17-1). Drain hydraulic
fluid.
NOTE: MAXON recommends using dielectric
grease on all electrical connections.
2. Disconnect the white wire (FIG. 17-2) from
starter solenoid. Lower the platform while draining the remaining hydraulic fluid from system.
Reinstall drain plug. Reconnect the white wire
to starter solenoid.
STARTER
SOLENOID
HEX NUT
WHITE WIRE
3. Pull out (no threads) filler cap (FIG. 17-1) and refill
reservoir with hydraulic fluid to level shown in FIG. 171. Reinstall filler cap (FIG. 17-1).
4. Stow the Lift and do the CHECKING HYDRAULIC
FLUID procedure in this section of the manual.
17
POWER DOWN PUMP
FIG. 17-2
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GRAVITY DOWN LIFTGATES
PERIODIC MAINTENANCE
GRAVITY DOWN & POWER DOWN LIFTGATES
CAUTION
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
Pump cover must be correctly secured to prevent it from becoming
a hazard. To secure pump cover,
the long side of the holder flats
must butt against pump cover as
shown in the illustration.
NUTS
(2 PLACES)
Bolt on the pump cover as shown in
FIG. 18-1. Torque the 5/16”-18 cover
bolts from 10 to 14 lbs.-ft.
POWER UNIT
(REF)
LONGER SIDE OF
HOLDER FLATS
BUTT AGAINST
COVER
FLAT WASHERS
(2 PLACES)
PUMP COVER
BOLTS
(2 PLACES)
BOLTING ON PUMP COVER
FIG. 18-1
18
NOTE: Perform the following adjustment
if platform feels heavy as you start
to fold it for stowing. If adjusted
as follows, the torsion springs will
reduce the amount of effort you
need to start folding the platform.
1. Make sure vehicle is parked on level
ground. LOWER the Liftgate about 1”
above the ground (FIG. 19-1).
90 DEGREES +2/-0
1”
LIFTGATE OFF THE GROUND
FIG. 19-1
! WARNING
To prevent possible injury and damage
to Liftgate, have another qualified person
hold platform in position to keep it from
falling open.
2. Position platform and flipover to 90 degrees, +2 / -0 degrees (FIG. 19-1). Get
a second person to hold the platform in
place while you take measurements.
PIN LOCATION
FIG. 19-2A
3. On RH side of platform, position the
torsion spring so it rests on pin (FIGS.
19-2A & 19-2B). Make sure long leg
of torsion spring is parallel to chamfered
surface on support block (FIG. 19-2B).
Measure gap “H” between leg of the torsion spring and support block (FIG. 192B). Repeat for torsion spring on LH side
of platform.
SUPPORT
BLOCK
“H”
PIN
TORSION
SPRING
LONG
LEG
CORRECTLY POSITIONED
PLATFORM & FLIPOVER
FIG. 19-2B
19
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PLATFORM TORSION SPRING ADJUSTMENT
PERIODIC MAINTENANCE
PLATFORM TORSION SPRING ADJUSTMENT - Continued
NOTE: If there is little or no gap, a shim is
not required. Skip to step 7.
3/4”
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4. Fabricate 2 shims from A-36 steel as
shown in FIG 20-1. The thickness must
be equal to the “H” measurement taken
in the previous step and an added 1/16”.
For example, if you measured 1/8” for
“H”, add another 1/16” to make the
shim 3/16” thick.
2-1/2”
SHIM (THICKNESS “H”)
MADE FROM STEEL FLAT
FIG. 20-1
CAUTION
Heat from welding near the platform torsion springs can weaken
the springs. Cover the torsion
springs with a wet cloth before
welding.
SUPPORT
BLOCK
5. Weld 1 shim (FIG. 20-2) to support
block on RH side of platform as shown in
FIG. 20-2. Repeat for support block on
LH side of platform.
3/16”
TORSION
SPRING
(REF)
SHIM
WELDING SHIM ON
SUPPORT BLOCK
FIG. 20-2
20
FOLDING PLATFORM
FIG. 21-1
UNFOLDING PLATFORM
FIG. 21-2
CAUTION
Stow Liftgate under hydraulic
pressure.
7. Fold platform and stow Liftgate (FIG. 21-3).
LIFTGATE STOWED
FIG. 21-3
21
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
6. LOWER platform to the ground. Make
sure platform easily folds (FIG. 21-1)
and unfolds (FIG. 21-2).
PERIODIC MAINTENANCE
REPLACING PLATFORM TORSION SPRING
NOTE: The following procedure shows how to replace torsion spring on RH side of
platform. Use this procedure for replacing torsion spring on the LH side.
1. Fold flipover onto platform.
SPRING
BRACKET
BOLT
HINGE
BRACKET
BOLT
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
2. Fold platform.
WASHER
WASHER
SHACKLE
LOCK NUT
3. Raise Liftgate to a convenient work
height to gain access and release tension on the torsion spring.
FIG. 22-1
! CAUTION
To prevent injury and equipment damage,
make sure there is no tension on torsion
spring before removing hinge pin.
4. Unbolt hinge pin from shackle and spring
bracket (FIG. 22-1). Remove bolts,
washers, and lock nuts. Drive the hinge pin
outboard toward the shackle just enough to
free the torsion spring (FIG. 22-2). Remove the torsion spring.
TORSION
SPRING
HINGE
PIN
SHACKLE
FIG. 22-2
22
BOLT
SPRING
BRACKET
SHORT
CHAMFERED HINGE
BRACKET
LEG
BOLT
LONG
LEG
WASHER
6. Drive the hinge pin into correct position
through the hinge bracket as shown in
FIG. 23-1. Line up the bolt hole in the
hinge pin with the hole in the shackle
and spring bracket. Bolt the hinge pin to
hinge bracket and spring bracket with
bolts, washers, lock nuts (FIG. 23-1).
Torque the 3/8”-16 spring pin bolt and
3/8”-16 spring bracket bolt 35 to 52
lbs.-ft.
WASHER
LOCK NUT
SHACKLE
FIG. 23-1
7. Operate the Liftgate according to
instructions in Operation Manual
to make sure it operates correctly.
23
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
5. Install the torsion spring as shown in FIG.
23-1. Make sure the long leg of the spring
is inserted in the spring bracket (FIG. 231). Make sure the short end of the spring is
visible and resting against the hinge bracket (FIG. 23-1).
PARTS BREAKDOWN
MAIN ASSEMBLY: GPTLR-25 & GPTLR-33 (ALUMINUM PLATFORM)
1A
REFER TO PUMP
COVER, HYDRAULIC
COMPONENTS, &
POWER UNITS
1
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
4
(2 PLACES)
1B
7
7
4
REFER TO MAIN FRAME,
LIFTING ARMS &
PARALLEL ARMS
2
2
4
5A
2
16
(3 PLACES)
6
2
4
5A
6
3
3
5
2
16
(3 PLACES)
REFER TO PLATFORM &
FLIPOVER ASSEMBLY
(ALUMINUM)
14
8
15
11
(3 PLACES)
10
(3 PLACES)
15
12
(3 PLACES)
14
13
(3 PLACES)
9
11
(3 PLACES)
10
(3 PLACES)
24
13
(3 PLACES)
12
(3 PLACES)
1
1
DESCRIPTION
281090-01
EXTENSION PLATE ASSEMBLY (96” WIDE)
281090-02
EXTENSION PLATE ASSEMBLY (102” WIDE)
1A
6
207644
RIVET, 3/16” X .40” GRIP
1B
1
050175
MAXON PLATE
2
5
902000-14
FLAT WASHER, 1/2”
3
2
900035-3
CAP SCREW, 1/2”-13 X 1-1/2” LG.
4
5
901010
LOCK NUT, 1/2”-13
5
1
281580-01
ICC BUMPER (96” WIDE)
281580-02
ICC BUMPER (102” WIDE)
2
908088-01
BEARING, FLANGED
6
2
902013-21
FLAT WASHER, 1-3/8”
7
2
221416
ROLL PIN, 3/8” X 2” LG.
8
1
280981-01
SUPPORT, LH
9
1
280981-02
SUPPORT, RH
10
6
901002
LOCK NUT, 3/8”-16
11
6
902013-11
FLAT WASHER, 3/8”
12
6
902011-6
LOCK WASHER, 1/2”
13
6
900035-5
CAP SCREW, 1/2”-13 X 2” LG.
14
2
908026-01
BEARING, 1-3/4” LG.
15
2
908008-02
BEARING, 5/8” LG.
16
6
900064-08
BUTTONHEAD SCREW, 3/8”-16 X 3-1/4” LG.
5A
25
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
ITEM QTY. PART NO.
PARTS BREAKDOWN
MAIN ASSEMBLY: GPTLR-25 & GPTLR-33 (ALUMINUM PLATFORM)
- Continued
27
28 29
30
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
REFER TO OPENER
(GPTLR-25 & GPTLR-33)
24
(2 PLACES)
21
(2 PLACES)
31
32
22
23
(2 PLACES)
25
(4 PLACES)
26
(4 PLACES)
REFER TO LH &
RH PLATFORM
SEATS
24
(2 PLACES)
17
(2 PLACES)
20 19
26
18
(2 PLACES)
DESCRIPTION
17
2
902013-09
FLAT WASHER, 1/4”
18
2
901000
LOCK NUT, 1/4”-20
19
1
281154-01
LATCH BRACKET
20
2
900044-7
SOCKET SCREW, 1/4”-20 X 1-1/4” LG.
21
2
900035-7
CAP SCREW, 1/2”-13 X 2-1/2” LG.
22
1
281673-01
STOP BLOCK
23
2
902000-16
FLAT WASHER, 5/8”
24
4
900014-5
CAP SCREW, 3/8”-16 X 1-1/4” LG, GRADE 8
25
4
902000-10
FLAT WASHER, 3/8”
26
4
901016-4
LOCK NUT, 3/8”-16
27
1
282277-01
OPENER PIN
28
1
092046-10
BUSHING
29
1
902000-20
FLAT WASHER, 3/4”
30
1
905033-2
ROLL PIN, 1/4” X 1-1/4”
31
1
282272-01
OPENER TORSION SPRING
32
1
900035-12
CAP SCREW, 1/2”-13 X 4-1/2”
27
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
ITEM QTY. PART NO.
PARTS BREAKDOWN
MAIN ASSEMBLY: GPTLR-44 & GPTLR-55 (ALUMINUM PLATFORM)
1A
REFER TO PUMP
COVER, HYDRAULIC
COMPONENTS, &
POWER UNITS
1
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
4
(2 PLACES)
1B
7
7
2
4
REFER TO MAIN FRAME,
LIFTING ARMS &
PARALLEL ARMS
2
4
2
5A
16
(3 PLACES)
4
6
2
3
2
5A
6
3
5
16
(3 PLACES)
REFER TO PLATFORM &
FLIPOVER ASSEMBLY
(ALUMINUM)
14
8
15
11
(3 PLACES)
10
(3 PLACES)
15
12
(3 PLACES)
14
13
(3 PLACES)
9
11
(3 PLACES)
10
(3 PLACES)
28
13
(3 PLACES)
12
(3 PLACES)
1
1
DESCRIPTION
281120-01
EXTENSION PLATE ASSEMBLY (96” WIDE)
281120-02
EXTENSION PLATE ASSEMBLY (102” WIDE)
1A
6
207644
RIVET, 3/16” X .40” GRIP
1B
1
050175
MAXON PLATE
2
5
902000-14
FLAT WASHER, 1/2”
3
2
900035-3
CAP SCREW, 1/2”-13 X 1-1/2” LG.
4
5
901010
LOCK NUT, 1/2”-13
5
1
281399-01
UNDERRIDE (96” WIDE)
281399-02
UNDERRIDE (102” WIDE)
2
908088-01
BEARING, FLANGED
6
2
902013-21
FLAT WASHER, 1-3/8”
7
2
221416
ROLL PIN, 3/8” X 2” LG.
8
1
281340-01
SUPPORT, LH
9
1
281340-02
SUPPORT, RH
10
6
901002
LOCK NUT, 3/8”-16
11
6
902013-11
FLAT WASHER, 3/8”
12
6
902011-6
LOCK WASHER, 1/2”
13
6
900035-5
CAP SCREW, 1/2”-13 X 2” LG.
14
2
908026-01
BEARING, 1-3/4” LG.
15
2
908008-02
BEARING, 5/8” LG.
16
6
900064-08
BUTTONHEAD SCREW, 3/8”-16 X 3-1/4” LG.
5A
29
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
ITEM QTY. PART NO.
PARTS BREAKDOWN
MAIN ASSEMBLY: GPTLR-44 & GPTLR-55 (ALUMINUM PLATFORM)
- Continued
27
28
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
REFER TO OPENER
(GPTLR-44 & GPTLR-55)
29
30
21
(2 PLACES)
23
(2 PLACES)
31
22
24
(2 PLACES)
32
25
(4 PLACES)
26
(4 PLACES)
REFER TO LH &
RH PLATFORM
SEATS
24
(2 PLACES)
17
(2 PLACES)
20 19
30
18
(2 PLACES)
DESCRIPTION
17
2
902013-09
FLAT WASHER, 1/4”
18
2
901000
LOCK NUT, 1/4”-20
19
1
281154-01
LATCH BRACKET
20
2
900044-7
SOCKET SCREW, 1/4”-20 X 1-1/4” LG.
21
2
900035-7
CAP SCREW, 1/2”-13 X 2-1/2” LG.
22
1
281673-01
STOP BLOCK
23
2
902000-16
FLAT WASHER, 5/8”
24
4
900014-6
CAP SCREW, 3/8”-16 X 1-1/2” LG, GRADE 8
25
4
902000-10
FLAT WASHER, 3/8”
26
4
901016-4
LOCK NUT, 3/8”-16
27
1
282277-01
OPENER PIN
28
1
092046-10
BUSHING
29
1
902000-20
FLAT WASHER, 3/4”
30
1
905033-2
ROLL PIN, 1/4” X 1-1/4”
31
1
282272-01
OPENER TORSION SPRING
32
1
900035-12
CAP SCREW, 1/2”-13 X 4-1/2”
31
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
ITEM QTY. PART NO.
PARTS BREAKDOWN
MAIN ASSEMBLY: GPTLR-25 & GPTLR-33 (STEEL PLATFORM &
RAMP OPTION)
NOTCHES FOR
RAMP OPTION ONLY
1A
REFER TO PUMP
COVER, HYDRAULIC
COMPONENTS, &
POWER UNITS
1
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
10
9
1B
4
(2 PLACES)
REFER TO OPENER
(GPTLR-25 & GPTLR-33)
8
7
7
2
4
REFER TO MAIN FRAME,
LIFTING ARMS &
PARALLEL ARMS
4
2
5A
2
6
2
6
3
5
3
2
REFER TO PLATFORM &
FLIPOVER ASSEMBLY
(STEEL)
32
4
5A
1
1
DESCRIPTION
281090-01
EXTENSION PLATE ASSEMBLY (96” WIDE)
281090-02
EXTENSION PLATE ASSEMBLY (102” WIDE)
281484-01
EXTENSION PLATE ASSEMBLY (96” WIDE RAMP OPTION)
281484-02
EXTENSION PLATE ASSEMBLY (102” WIDE RAMP OPTION)
1A
6
207644
RIVET, 3/16” X .40” GRIP
1B
1
050175
MAXON PLATE
2
5
902000-14
FLAT WASHER, 1/2”
3
2
900035-3
CAP SCREW, 1/2”-13 X 1-1/2” LG.
4
3
901010
LOCK NUT, 1/2”-13
5
1
281580-01
ICC BUMPER (96” WIDE)
281580-02
ICC BUMPER (102” WIDE)
2
908088-01
BEARING, FLANGED
6
2
902013-21
FLAT WASHER, 1-3/8”
7
2
221416
ROLL PIN, 3/8” X 2” LG.
8
1
900035-12
CAP SCREW, 1/2”-13 X 4-1/2”
9
1
282277-01
OPENER PIN
10
1
092046-10
BUSHING
5A
33
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
ITEM QTY. PART NO.
PARTS BREAKDOWN
MAIN ASSEMBLY: GPTLR-25 & GPTLR-33
(STEEL PLATFORM & RAMP OPTION) - Continued
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
15
(2 PLACES)
11
13
12
17
(2 PLACES)
16
19 (4 PLACES)
18
(2 PLACES)
14
(4 PLACES)
REFER TO LH &
RH PLATFORM
SEATS
34
18
(2 PLACES)
DESCRIPTION
11
1
902000-20
FLAT WASHER, 3/4”
12
1
905033-2
ROLL PIN, 1/4” X 1-1/4”
13
1
282272-01
OPENER TORSION SPRING
14
4
901016-4
LOCK NUT, 3/8”-16
15
2
900035-7
CAP SCREW, 1/2”-13 X 2-1/2” LG.
16
1
281673-01
STOP BLOCK
17
2
902000-16
FLAT WASHER, 5/8”
18
4
900014-5
CAP SCREW, 3/8”-16 X 1-1/4” LG, GRADE 8
19
4
902000-10
FLAT WASHER, 3/8”
35
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
ITEM QTY. PART NO.
PARTS BREAKDOWN
MAIN FRAME, LIFTING ARMS, & PARALLEL ARMS:
GPTLR-25 & GPTLR-33
4
5
3
(4 PLACES)
8
3
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
3
13
11
(2 PLACES)
8
6
1
4
2
7A
(2 PLACES)
2
5
7B
13
6
11
(2 PLACES)
7D
11
(2 PLACES)
7
7B
7C
(2 PLACES)
11
(2 PLACES)
7D
9
13
7A
(2 PLACES)
12
7
13
7C
(2 PLACES)
10
12
13
13
36
DESCRIPTION
280910-01
MAIN FRAME (96” WIDE GPTLR-25/33)
280910-02
MAIN FRAME (102” WIDE GPTLR-25/33)
2
040103-5
SPLIT LOOM, 1/2” X 5” LG.
3
7
905322-01
PLASTIC TIE, 8” LG.
4
2
280969-02
PIN, 1-1/4” DIA X 5-13/16” LG.
5
2
280968-01
PIN, 1-3/8” DIA X 5-7/8” LG.
6
2
281005-01
PIN, 7” LG.
7
2
282435-01
PARALLEL ARMS
7A
4
905112-04
BEARING, SELF-LUBE, 1-1/2” LG.
7B
1
906796-01
45° LUBE FITTING
7C
4
905112-03
BEARING, SELF-LUBE, 1-3/8” LG.
7D
1
224342
LUBE FITTING
8
2
262415
DUAL TUBE CLAMP
9
1
280971-02
SHACKLE, LH
10
1
280971-01
SHACKLE, RH
11
8
908059-01
BEARING, THRUST
12
2
281127-01
PIN, CYLINDER
13
10
904717-08
ROLL PIN, 3/8” X 2-1/2” LG.
1
1
2
37
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
ITEM QTY. PART NO.
PARTS BREAKDOWN
MAIN FRAME, LIFTING ARMS, & PARALLEL ARMS:
GPTLR-25 & GPTLR-33 - Continued
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
16A
(2 PLACES)
16
20
22
15A
(2 PLACES)
16B
16A
(2 PLACES)
18 21
23
17
15B
16B
17
19
20
25
24
23
15A
(2 PLACES)
15
14
15B
20
22
38
21
20
18
DESCRIPTION
14
1
281515-01
BRACKET, REINFORCEMENT, RH
15
1
282440-01
LIFT ARM, RH
15A
4
908047-02
BEARING, SELF-LUBE
15B
2
224342
LUBE FITTING
1
282440-02
LIFT ARM, LH
16A
4
908047-02
BEARING, SELF-LUBE
16B
2
224342
LUBE FITTING
17
2
900014-10
CAP SCREW, 3/8”-16 X 2-1/2” LG, GRADE 8
18
2
902000-10
FLAT WASHER, 3/8”
19
1
281515-02
BRACKET, REINFORCEMENT, LH
20
4
901002
LOCK NUT, 3/8”-16
21
2
900014-11
CAP SCREW, 3/8”-16 X 3” LG.
22
2
281004-01
PIN, SPRING
23
2
280976-01
PIN, 6” LG.
24
1
280950-02
TORSION SPRING, LH (ALUMINUM PLATFORM)
281319-02
TORSION SPRING, LH (STEEL PLATFORM)
25
1
280950-01
TORSION SPRING, RH (ALUMINUM PLATFORM)
281319-01
TORSION SPRING, RH (STEEL PLATFORM)
16
39
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
ITEM QTY. PART NO.
PARTS BREAKDOWN
MAIN FRAME, LIFTING ARMS, & PARALLEL ARMS:
GPTLR-44 & GPTLR-55
4
3
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
8
(2 PLACES)
3
(4 PLACES)
3
6
5
1
4
2
7A
(2 PLACES)
2
4
7B
6
8
(2 PLACES)
5
8
(2 PLACES)
7C
7
7B
12
7A
(2 PLACES)
6
9
11
7A
(2 PLACES)
8
(2 PLACES) 7C
7
6
12
7A
(2 PLACES)
10
11
6
6
40
DESCRIPTION
282545-01
MAIN FRAME (96” WIDE GPTLR-44/55)
282545-02
MAIN FRAME (102” WIDE GPTLR-44/55)
2
040103-5
SPLIT LOOM, 1/2” X 5” LG.
3
7
905322-01
PLASTIC TIE, 8” LG.
4
4
280968-04
PIN, 1-3/8” DIA X 7-1/8” LG.
5
2
281005-02
PIN, 8-1/16” LG.
6
10
904717-08
ROLL PIN, 3/8” X 2-1/2” LG.
7
2
282546-01
PARALLEL ARMS
7A
4
908065-04
BEARING, SELF-LUBE, 1-1/2” LG.
7B
1
906796-01
45° LUBE FITTING
7C
3
224342
LUBE FITTING
8
8
908059-01
BEARING, THRUST
9
1
281033-02
SHACKLE, LH
10
1
281033-01
SHACKLE, RH
11
2
280976-02
PIN, 7” LG.
12
2
281119-01
PIN, CYLINDER
1
1
2
41
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
ITEM QTY. PART NO.
PARTS BREAKDOWN
MAIN FRAME, LIFTING ARMS, & PARALLEL ARMS:
GPTLR-44 & GPTLR-55 - Continued
24
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
24
15A
(2 PLACES)
15
14A
(2 PLACES)
15B
19
21
15A
(2 PLACES)
17 20
16
14B
15B
14
16
18
19
23
22
14A
(2 PLACES)
13
14B
19
21
42
20
19
17
DESCRIPTION
13
1
281515-01
BRACKET, REINFORCEMENT, RH
14
1
282543-01
LIFT ARM, RH
14A
4
908047-02
BEARING, SELF-LUBE
14B
2
224342
LUBE FITTING
1
282543-02
LIFT ARM, LH
15A
4
908047-02
BEARING, SELF-LUBE
15B
2
224342
LUBE FITTING
16
2
900014-10
CAP SCREW, 3/8”-16 X 2-1/2” LG, GRADE 8
17
6
902000-10
FLAT WASHER, 3/8”
18
1
281515-02
BRACKET, REINFORCEMENT, LH
19
4
901002
LOCK NUT, 3/8”-16
20
2
900014-11
CAP SCREW, 3/8”-16 X 3” LG.
21
2
281053-01
PIN, SPRING
22
1
280950-02
TORSION SPRING, LH (ALUMINUM PLATFORM)
23
1
280950-01
TORSION SPRING, RH (ALUMINUM PLATFORM)
24
2
262415
DUAL TUBE CLAMP
15
43
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
ITEM QTY. PART NO.
PARTS BREAKDOWN
OPENER (GPTLR-25 & GPTLR-33)
5
(8 PLACES)
1
(4 PLACES)
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
2
(4 PLACES)
3
(4 PLACES)
ITEM
4
(4 PLACES)
QTY PART NO.
DESCRIPTION
REF
1
282275-01
OPENER ASSEMBLY, GPTLR 25/33
1
4
280082-01
ROLLER, OPENER, 3-1/2” X 1-1/4” X 1/2”
2
4
900035-11
CAP SCREW, 1/2”-13 X 4” LG.
3
4
902000-14
FLAT WASHER, 1/2”
4
4
901010
LOCK NUT, 1/2”-13
5
8
092028-10
SPACER
44
5
(8 PLACES)
1
(4 PLACES)
2
(4 PLACES)
3
(4 PLACES)
ITEM
4
(4 PLACES)
QTY PART NO.
DESCRIPTION
REF
1
282505-01
OPENER ASSEMBLY, GPTLR 44/55
1
4
280082-01
OPENER ROLLER, 3-1/2” X 1-1/4” X 1/2”
2
4
900035-11
CAP SCREW, 1/2”-13 X 4” LG.
3
4
902000-14
FLAT WASHER, 1/2”
4
4
901010
LOCK NUT, 1/2”-13
5
8
092028-10
SPACER
45
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
OPENER (GPTLR-44 & GPTLR-55)
PARTS BREAKDOWN
LH & RH PLATFORM SEATS: GPTLR-25 & GPTLR-33 (ALUMINUM
PLATFORM WITH FIXED RAMP OR CART STOPS ONLY)
1A
(2 PLACES)
1B
2A
(2 PLACES)
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
2B
1C
(2 PLACES)
1D
(2 PLACES)
1
2
2C
(2 PLACES)
2D
(2 PLACES)
ITEM QTY. PART NO.
1
DESCRIPTION
1
281650-02
PLATFORM SEAT, LH (1/2” THICK PAD)
1A
2
900025-1
SOCKET SCREW, 1/4”-20 X 1” LG.
1B
1
281649-01
PLASTIC PAD (1/2” THICK PAD)
1C
2
902013-09
FLAT WASHER, 1/4”
1D
2
901000
LOCK NUT, 1/4”-20
1
281653-01
PLATFORM SEAT, RH (3/4” THICK PAD)
2A
2
900025-5
SOCKET SCREW, 1/4”-20 X 1-1/4” LG.
2B
1
281652-01
PLASTIC PAD (3/4” THICK PAD)
2C
2
902013-09
FLAT WASHER, 1/4”
2D
2
901000
LOCK NUT, 1/4”-20
2
46
1A
(2 PLACES)
1B
2A
(2 PLACES)
2B
1C
(2 PLACES)
1D
(2 PLACES)
1
2
2C
(2 PLACES)
2D
(2 PLACES)
ITEM QTY. PART NO.
1
DESCRIPTION
1
281653-02
PLATFORM SEAT, LH (3/4” THICK PAD)
1A
2
900025-5
SOCKET SCREW, 1/4”-20 X 1-1/4” LG.
1B
1
281652-01
PLASTIC PAD (3/4” THICK PAD)
1C
2
902013-09
FLAT WASHER, 1/4”
1D
2
901000
LOCK NUT, 1/4”-20
1
281653-01
PLATFORM SEAT, RH (3/4” THICK PAD)
2A
2
900025-5
SOCKET SCREW, 1/4”-20 X 1-1/4” LG.
2B
1
281652-01
PLASTIC PAD (3/4” THICK PAD)
2C
2
902013-09
FLAT WASHER, 1/4”
2D
2
901000
LOCK NUT, 1/4”-20
2
47
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
LH & RH PLATFORM SEATS: GPTLR-25 & GPTLR-33
(ALUMINUM PLATFORM WITH RETENTION RAMP ONLY)
PARTS BREAKDOWN
LH & RH PLATFORM SEATS: GPTLR-25 & GPTLR-33
(STEEL PLATFORM ONLY)
1A
(2 PLACES)
1B
2A
(2 PLACES)
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
2B
1C
(2 PLACES)
1D
(2 PLACES)
1
2
2C
(2 PLACES)
2D
(2 PLACES)
ITEM QTY. PART NO.
1
DESCRIPTION
1
281650-02
PLATFORM SEAT, LH (1/2” THICK PAD)
1A
2
900025-1
SOCKET SCREW, 1/4”-20 X 1” LG.
1B
1
281649-01
PLASTIC PAD (1/2” THICK PAD)
1C
2
902013-09
FLAT WASHER, 1/4”
1D
2
901000
LOCK NUT, 1/4”-20
1
281650-01
PLATFORM SEAT, RH (1/2” THICK PAD)
2A
2
900025-1
SOCKET SCREW, 1/4”-20 X 1” LG.
2B
1
281649-01
PLASTIC PAD (1/2” THICK PAD)
2C
2
902013-09
FLAT WASHER, 1/4”
2D
2
901000
LOCK NUT, 1/4”-20
2
48
1A
(2 PLACES)
1B
2A
(2 PLACES)
1C
(2 PLACES)
2B
1
1D
(2 PLACES)
2
2C
(2 PLACES)
2D
(2 PLACES)
ITEM QTY. PART NO.
1
DESCRIPTION
1
281698-02
PLATFORM SEAT, LH (1/2” THICK PAD)
1A
2
900025-1
SOCKET SCREW, 1/4”-20 X 1” LG.
1B
1
281649-01
PLASTIC PAD (1/2” THICK PAD)
1C
2
902013-09
FLAT WASHER, 1/4”
1D
2
901000
LOCK NUT, 1/4”-20
1
281716-01
PLATFORM SEAT, RH (3/4” THICK PAD)
2A
2
900025-5
SOCKET SCREW, 1/4”-20 X 1-1/4” LG.
2B
1
281652-01
PLASTIC PAD (3/4” THICK PAD)
2C
2
902013-09
FLAT WASHER, 1/4”
2D
2
901000
LOCK NUT, 1/4”-20
2
49
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
LH & RH PLATFORM SEATS: GPTLR-44 & GPTLR-55 (ONLY
ALUMINUM PLATFORM WITH FIXED RAMP OR CART STOPS)
PARTS BREAKDOWN
LH & RH PLATFORM SEATS: GPTLR-44 & GPTLR-55
(ONLY PLATFORM WITH RETENTION RAMP)
1A
(2 PLACES)
1B
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
2A
(2 PLACES)
1C
(2 PLACES)
2B
1
1D
(2 PLACES)
2
2C
(2 PLACES)
2D
(2 PLACES)
ITEM QTY. PART NO.
1
DESCRIPTION
1
281698-02
PLATFORM SEAT, LH (1/2” THICK PAD)
1A
2
900025-1
SOCKET SCREW, 1/4”-20 X 1” LG.
1B
1
281649-01
PLASTIC PAD (1/2” THICK PAD)
1C
2
902013-09
FLAT WASHER, 1/4”
1D
2
901000
LOCK NUT, 1/4”-20
1
281698-01
PLATFORM SEAT, RH (1/2” THICK PAD)
2A
2
900025-1
SOCKET SCREW, 1/4”-20 X 1” LG.
2B
1
281649-01
PLASTIC PAD (1/2” THICK PAD)
2C
2
902013-09
FLAT WASHER, 1/4”
2D
2
901000
LOCK NUT, 1/4”-20
2
50
51
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
THIS PAGE INTENTIONALLY LEFT BLANK
PARTS BREAKDOWN
PLATFORM & FLIPOVER ASSEMBLY (ALUMINUM)
9D
(5 PLACES)
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
9, 9A
12
1C
(4 PLACES)
7
9C
4
6
(4 PLACES)
9D
(5 PLACES)
3
5
8
(4 PLACES)
10
9B
13
11
1D
5
7
(4 PLACES)
4
5
1B
1, 1A
1C
(5 PLACES)
52
4
2
(15 PLACES)
1
QTY. PART NO.
1
DESCRIPTION
282515-01
FLIPOVER ASSEMBLY, 79-1/2” (WIDE)
282515-02
FLIPOVER ASSEMBLY, 85-1/2” (WIDE)
282514-01
FLIPOVER WELDMENT, 79” (WIDE)
282514-02
FLIPOVER WELDMENT, 85” (WIDE)
1A
1
1B
1
281635-01
SIDE PLATE, FLIPOVER RH
1C
9
900705-01
SELF-TAPPING SCREW, 1/4”-20 X 1” LG.
1D
1
281636-01
SIDE PLATE, FLIPOVER LH
2
15
281010-01
HINGE ASSEMBLY
3
2
263456-12
HINGE, ROD, 80” LG. (79-1/2” WIDE PLATFORM)
263456-13
HINGE, ROD, 86” LG. (85-1/2” WIDE PLATFORM)
4
4
905015-1
ROLL PIN, 3/16” X 3/4” LG.
5
4
902000-14
FLAT WASHER, 1/2”
6
4
900040-11
FLAT HEAD SOCKET SCREW, 3/8”-16 X 3” LG, GRADE 8
7
6
901016-4
LOCK NUT, THIN HEAD, 3/8”-16, GRADE 8
8
4
902013-11
FLAT WASHER, 3/8”
9
1
281330-01
PLATFORM ASSEMBLY, 79-1/2” (WIDE)
281330-02
PLATFORM ASSEMBLY, 85-1/2” (WIDE)
281144-01
PLATFORM WELDMENT, 79” (WIDE)
281144-02
PLATFORM WELDMENT, 85” (WIDE)
9A
1
9B
1
280987-01
SIDE PLATE, RH, PLATFORM
9C
1
281143-01
SIDE PLATE, LH, PLATFORM
9D
10
900705-01
SELF-TAPPING SCREW, 1/4”-20 X 1” LG.
10
1
281135-01
TORSION BAR BRACKET
11
2
900014-20
CAP SCREW, 3/8”-16 X 3-1/4” LG, GRADE 8
12
1
281141-01
TORSION BAR
13
1
281410-01
TORSION BAR HOLDER
53
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
ITEM
PARTS BREAKDOWN
PLATFORM & FLIPOVER ASSEMBLY WITH CART STOPS
(ALUMINUM)
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
12D
(5 PLACES)
12,12A
12C
6
(4 PLACES)
12D
(5 PLACES)
9
4
8
5
3
8
(4 PLACES)
10
11
12B
1
5
7
(4 PLACES)
4
5
REFER TO FLIPOVER WITH SINGLE
CART STOP OR FLIPOVER WITH DUAL
CART STOPS (SINGLE IS SHOWN)
54
4
2
(15 PLACES)
DESCRIPTION
1
1
281410-01
TORSION BAR HOLDER
2
15
281010-01
HINGE ASSEMBLY
3
2
263456-12
HINGE, ROD, 80” LG. (79-1/2” WIDE PLATFORM)
263456-13
HINGE, ROD, 86” LG. (85-1/2” WIDE PLATFORM)
4
4
905015-1
ROLL PIN, 3/16” X 3/4” LG.
5
4
902000-14
FLAT WASHER, 1/2”
6
4
900040-11
FLAT HEAD SOCKET SCREW, 3/8”-16 X 3” LG, GRADE 8
7
6
901016-4
LOCK NUT, THIN HEAD, 3/8”-16, GRADE 8
8
6
902013-11
FLAT WASHER, 3/8”
9
1
281141-01
TORSION BAR
10
1
281135-01
TORSION BAR BRACKET
11
2
900014-11
CAP SCREW, 3/8”-16 X 3” LG, GRADE 8
12
1
281330-01
PLATFORM ASSEMBLY, 79-1/2” (WIDE)
281330-02
PLATFORM ASSEMBLY, 85-1/2” (WIDE)
281144-01
PLATFORM WELDMENT, 79” (WIDE)
281144-02
PLATFORM WELDMENT, 85” (WIDE)
12A
1
12B
1
280987-01
SIDE PLATE, RH, PLATFORM
12C
1
281143-01
SIDE PLATE, LH, PLATFORM
12D
10
900705-01
SELF-TAPPING SCREW, 1/4”-20 X 1” LG.
55
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
ITEM QTY. PART NO.
PARTS BREAKDOWN
FLIPOVER WITH SINGLE CART STOP (ALUMINUM)
2
9
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
7
6
(2 PLACES)
14
5
3
6
(2 PLACES)
4
2
9
7
1D
5
8
4
10
(4 PLACES)
11
(4 PLACES)
1C
(4 PLACES)
1, 1A
1B
13
12
(4 PLACES)
56
1C
(5 PLACES)
1
1
DESCRIPTION
282535-03
FLIPOVER ASSEMBLY, 79-1/2” (WIDE)
282535-04
FLIPOVER ASSEMBLY, 85-1/2” (WIDE)
282512-01
FLIPOVER WELDMENT, 79” (WIDE)
282512-02
FLIPOVER WELDMENT, 85” (WIDE)
1A
1
1B
1
281635-01
SIDE PLATE, FLIPOVER RH
1C
9
900705-01
SELF-TAPPING SCREW, 1/4”-20 X 1” LG.
1D
1
281636-01
SIDE PLATE, FLIPOVER LH
2
2
903705-06
RIVET, BLIND, 1/4” X 1-7/32” LG.
3
1
267092-08
CART STOP WELDMENT RH, 75” (WIDE)
267092-09
CART STOP WELDMENT RH, 81” (WIDE)
4
2
267094-03
PIN, 5” LG.
5
2
267088-01
CART STOP LINK
6
4
903705-02
RIVET, BLIND, 1/4” X 5/8” LG.
7
2
903409-07
FENDER WASHER, 9/32” X 1-1/4” O.D.
8
1
267581-01
SPRING, FLIPOVER, 42” LG.
9
2
905314-05
BUMPER
10
4
902013-07
FLAT WASHER, #10
11
4
900028-3
SCREW, #10-24 X 3/4” LG.
12
4
901003
LOCK NUT, #10-24, GRADE 8
13
1
267201-02
SLAM LATCH, 7/16” LG.
14
1
267094-04
PIN, 9-3/4” LG.
57
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
ITEM QTY. PART NO.
PARTS BREAKDOWN
FLIPOVER WITH DUAL CART STOPS (ALUMINUM)
8
7
6
(2 PLACES)
3
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
15
10
5
4
9
8
6
(2 PLACES)
1D
7
5
2
4
3
11
(4 PLACES)
12
(4 PLACES)
1C
(4 PLACES)
1, 1A
1B
14
13
(4 PLACES)
58
1C
(5 PLACES)
1
1
DESCRIPTION
282535-01
FLIPOVER ASSEMBLY, 79-1/2” (WIDE)
282535-02
FLIPOVER ASSEMBLY, 85-1/2” (WIDE)
282512-01
FLIPOVER WELDMENT, 79” (WIDE)
282512-02
FLIPOVER WELDMENT, 85” (WIDE)
1A
1
1B
1
281635-01
SIDE PLATE, FLIPOVER RH
1C
9
900705-01
SELF-TAPPING SCREW, 1/4”-20 X 1” LG.
1D
1
281636-01
SIDE PLATE, FLIPOVER LH
2
1
267581-01
SPRING, FLIPOVER, 42” LG.
3
2
903409-07
FENDER WASHER, 9/32” X 1-1/4” O.D.
4
2
267094-03
PIN, 5” LG.
5
2
267088-01
CART STOP LINK
6
2
903705-02
RIVET, BLIND, 1/4” X 5/8” LG.
7
2
905314-05
BUMPER
8
2
903705-06
RIVET, BLIND, 1/4” X 1-7/32” LG.
9
1
267092-04
CART STOP WELDMENT RH, 36-3/8” (WIDE)
267092-06
CART STOP WELDMENT RH, 39-3/8” (WIDE)
10
1
267092-05
CART STOP WELDMENT LH, 36-3/8” (WIDE)
267092-07
CART STOP WELDMENT LH, 39-3/8” (WIDE)
11
4
902013-07
FLAT WASHER, #10
12
4
900028-3
SCREW, #10-24 X 3/4” LG.
13
4
901003
LOCK NUT, #10-24, GRADE 8
14
1
967201-02
SLAM LATCH, 7/16” LG.
15
1
267094-04
PIN, 9-3/4” LG.
59
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
ITEM QTY. PART NO.
PARTS BREAKDOWN
PLATFORM & FLIPOVER ASSEMBLY WITH SINGLE RETENTION
RAMP (ALUMINUM)
NOTE: This platform & flipover with retention ramp is only available for
GPTLR-44 & GPTLR-55.
12D
(5 PLACES)
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
12, 12A
6
(8 PLACES)
12C
9
7
4
5
1
7
(4 PLACES)
3
12B
13
8
(8 PLACES)
10
12D
(5 PLACES)
7
(4 PLACES)
14
11
5
4
4
5
7
10
11
REFER TO FLIPOVER WITH
SINGLE RETENTION RAMP
60
2
(15 PLACES)
DESCRIPTION
1
1
281410-01
TORSION BAR HOLDER, LH
2
15
281010-01
HINGE ASSEMBLY
3
2
263456-12
HINGE, ROD, 80” LG. (79-1/2” WIDE PLATFORM)
263456-13
HINGE, ROD, 86” LG. (85-1/2” WIDE PLATFORM)
4
4
905015-1
ROLL PIN, 3/16” X 3/4” LG.
5
4
902000-14
FLAT WASHER, 1/2”
6
8
900040-11
FLAT HEAD SOCKET SCREW, 3/8”-16 X 3” LG, GRADE 8
7
12
901016-4
LOCK NUT, THIN HEAD, 3/8”-16, GRADE 8
8
8
902013-11
FLAT WASHER, 3/8”
9
1
281414-01
TORSION BAR, LH
10
2
281135-01
TORSION BAR BRACKET
11
4
900014-11
CAP SCREW, 3/8”-16 X 3” LG, GRADE 8
12
1
281330-03
PLATFORM ASSEMBLY, 79-1/2” (WIDE)
281330-04
PLATFORM ASSEMBLY, 85-1/2” (WIDE)
281144-03
PLATFORM WELDMENT, 79” (WIDE)
281144-04
PLATFORM WELDMENT, 85” (WIDE)
12A
1
12B
1
281143-02
SIDE PLATE, RH, PLATFORM
12C
1
281143-01
SIDE PLATE, LH, PLATFORM
12D
10
900705-01
SELF-TAPPING SCREW, 1/4”-20 X 1” LG.
13
1
281410-02
TORSION BAR HOLDER, RH
14
1
281414-02
TORSION BAR, RH
61
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
ITEM QTY. PART NO.
PARTS BREAKDOWN
FLIPOVER WITH SINGLE RETENTION RAMP (ALUMINUM)
21
(4 PLACES)
1
20
21
(4 PLACES)
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
8
(4 PLACES)
7
(4 PLACES)
3
2
19
5
9
6
(4 PLACES)
10
4 (10 PLACES)
11
16
17
12
15
14
13
62
12
18
DESCRIPTION
282533-01
FLIPOVER ASSEMBLY, 79-1/2” (WIDE)
282533-02
FLIPOVER ASSEMBLY, 85-1/2” (WIDE)
282532-01
FLIPOVER WELDMENT, 79-1/2” (WIDE)
282532-02
FLIPOVER WELDMENT, 85-1/2” (WIDE)
267045-01
HINGE, ROD, 78-9/16” LG. (79-1/2” WIDE FLIPOVER)
267045-03
HINGE, ROD, 84-9/16” LG. (85-1/2” WIDE FLIPOVER)
267045-02
HINGE, ROD, 78-3/4” LG. (79-1/2” WIDE FLIPOVER)
267045-04
HINGE, ROD, 84-3/4” LG. (85-1/2” WIDE FLIPOVER)
10
311022-10
HINGE ASSEMBLY
5
2
905007-07
ROLL PIN, 5/32” X 1” LG.
6
4
900028-4
PAN HEAD SCREW, #10-24 X 1” LG.
7
4
902013-07
FLAT WASHER, #10
8
4
901003
LOCK NUT, #10-24
9
1
267201-02
SLAM LATCH, 7/16” LG.
10
1
267041-01
RETENTION RAMP, 78” (WIDE)
267041-02
RETENTION RAMP, 84” (WIDE)
11
1
905318-01
BUMPER, 74-1/2” LG. (79-1/2” WIDE FLIPOVER)
905318-02
BUMPER, 80-1/2” LG. (85-1/2” WIDE FLIPOVER)
12
2
903421-02
FLAT WASHER, NYLON, 1/4”, 1/16” THK.
13
2
904005-1
RIVET, 3/16” DIA. X 7/16” LG.
14
1
267326-01
SPRING, RETENTION RAMP HOOK
15
1
311038-11
RETENTION RAMP HOOK
16
1
903413-02
FLAT WASHER, NYLON, 1/2”, 1/16” THK.
17
1
903420-01
RETAINING RING, SELF LOCKING, 1/2”
18
1
900004-8
CAP SCREW, 1/4”-20 X 2” LG, GRADE 8
19
1
267044-01
SIDE PLATE, FLIPOVER RH
20
1
267044-02
SIDE PLATE, FLIPOVER LH
21
8
900705-01
SELF-TAPPING SCREW, 1/4”-20 X 1” LG.
REF
1
1
1
2
1
3
1
4
63
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
ITEM QTY. PART NO.
PARTS BREAKDOWN
PLATFORM & FLIPOVER ASSEMBLY (STEEL)
NOTE: This steel platform & flipover assembly is only available for
GPTLR-25 & GPTLR-33.
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
7
5
12
(2 PLACES)
9
(2 PLACES)
6
10
3
4
8
2
1B
(4 PLACES)
4
3
11
(2 PLACES)
1, 1A
1C
1D
(4 PLACES)
64
1
1
DESCRIPTION
282510-01
FLIPOVER ASSEMBLY, 79” (WIDE)
282510-02
FLIPOVER ASSEMBLY, 85” (WIDE)
282507-01
FLIPOVER WELDMENT, 79” (WIDE)
282507-02
FLIPOVER WELDMENT, 85” (WIDE)
1A
1
1B
4
900044-5
FLAT HEAD SKT SCREW, 1/4”-20 X 7/8” LG, GRADE 8
1C
1
267201-03
SLAM LATCH, 1/2” LG.
1D
4
901000
LOCK NUT, 1/4”-20, GRADE 8
2
1
281302-01
TORSION BAR
3
2
900033-3
CAP SCREW, 1/2”-20 X 1-1/2” LG, GRADE 8
4
2
901016-1
LOCK NUT, THIN HEAD, 1/2”-20, GRADE 8
5
1
280749-01
ANCHOR BOLT
6
1
902000-14
FLAT WASHER, 1/2”
7
1
281770-01
PLATFORM WELDMENT, 79” (WIDE)
281770-02
PLATFORM WELDMENT, 85” (WIDE)
8
1
901010
LOCK NUT, 1/2”-13, GRADE 8
9
2
900044-7
FLAT HEAD SKT SCREW, 1/4”-20 X 1-1/4” LG, GRADE 8
10
1
281415-01
BRACKET LATCH
11
2
901000
LOCK NUT, 1/4”-20, GRADE 8
12
2
902013-09
FLAT WASHER, 1/4”
65
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
ITEM QTY. PART NO.
PUMP COVER & MOUNTING PLATE ASSEMBLY
(GRAVITY DOWN)
7
6
8
8
7
5
9
10
11
12
MAIN FRAME
(REF)
4
3
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
2
1
6
5
4
3
REFER TO
12 VDC POWER UNIT
(GRAVITY DOWN)
NOTE: LEAVE 1/4” GAP FOR DRAINAGE.
ITEM QTY. PART NO.
DESCRIPTION
REF
1
281059-01
PUMP ASSEMBLY
1
1
281038-01
COVER ASSY
2
1
093203-10
GASKET, RUBBER CHANNEL, 60” LG.
3
2
900009-8
CAP SCREW, 5/16”-18 X 2” LG.
4
2
281062-02
HOLDER FLATS
5
2
902013-10
FLAT WASHER, 5/16”
6
2
901001
LOCK NUT, 5/16”-18
7
2
900064-05
BUTTONHEAD SCREW, 3/8”-16 X 1” LG.
8
2
902011-4
LOCK WASHER, 3/8”
9
1
281065-01
PLATE, PUMP MOUNT
10
1
903400-02
LOCK WASHER, EXTERNAL TOOTH
11
1
266428-02
GROMMET, 1/4” HOLE
12
1
266428-08
GROMMET, 3/16” HOLE & 5/16” HOLE
66
7
7
8
6
8
5
10
11
9
12
4
MAIN FRAME
(REF)
3
2
1
6
5
4
3
REFER TO
12 VDC POWER UNIT
(POWER DOWN)
NOTE: LEAVE 1/4” GAP FOR DRAINAGE.
ITEM QTY. PART NO.
DESCRIPTION
REF
1
282330-01
PUMP ASSEMBLY
1
1
281038-01
COVER ASSY
2
1
093203-10
GASKET, RUBBER CHANNEL, 60” LG.
3
2
900009-8
CAP SCREW, 5/16”-18 X 2” LG.
4
2
281062-02
HOLDER FLATS
5
2
902013-10
FLAT WASHER, 5/16”
6
2
901001
LOCK NUT, 5/16”-18
7
2
900064-05
BUTTONHEAD SCREW, 3/8”-16 X 1” LG.
8
2
902011-4
LOCK WASHER, 3/8”
9
1
282322-01
PLATE, PUMP MOUNT
10
1
903400-02
LOCK WASHER, EXTERNAL TOOTH
11
1
266428-02
GROMMET, 1/4” HOLE
12
1
266428-08
GROMMET, 3/16” HOLE & 5/16” HOLE
67
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
PUMP COVER & MOUNTING PLATE ASSEMBLY
(POWER DOWN)
PARTS BREAKDOWN
GRAVITY DOWN HYDRAULIC COMPONENTS
CAUTION
To prevent incorrect operation & damage to Liftgate, make sure
arrow on flow regulator valve points up as shown in illustration.
RH CYLINDER
LH CYLINDER
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
1A
(4 PLACES)
1B
1A
(4PLACES)
1C
(2 PLACES)
1
1C
(2 PLACES)
1B
2
18
22
17
18
10
20
21
9 (REF)
7
17
20
18
4
4
PUMP
MOUNTING
PLATE (REF)
5
5
13
(3 PLACES)
SEE 12 VDC
POWER UNIT
(GRAVITY DOWN)
14
6
17
15
9
17
16
17
1
19
12
17
3
11
8
68
PART NO.
DESCRIPTION
280990-01
CYLINDER, 2-3/4” x 11-1/2” STROKE (GPTLR-25/33)
281035-01
CYLINDER, 3-1/4” X 12-1/2” STROKE (GPTLR-44)
281040-01
CYLINDER 3-1/2” X 12-1/2” STROKE (GPTLR-55)
908046-02
SELF-LUBE BEARING (GPTLR-25/33 CYLINDER)
908047-02
SELF-LUBE BEARING (GPTLR-44/55 CYLINDER)
280990SK-01
SEAL KIT (GPTLR-25/33 CYLINDER)
281035SK-01
SEAL KIT (GPTLR-44 CYLINDER)
281040SK-01
SEAL KIT (GPTLR-55 CYLINDER)
2
224342
GREASE FITTING
2
1
906704-01
ELBOW, 90° FACE SEAL, #8 M-M (WITH O-RING)
3
1
281069-01
HOSE ASSY, 3/8” HP, 43” LG.
4
2
228012
ADAPTER, STRAIGHT THREAD, 9/16”-18 M - 1/4” F
5
2
263811
ELBOW, MALE 45°
6
1
224370-21
HOSE, PLASTIC 38” LG.
7
1
224370-22
HOSE, PLASTIC 107” LG.
8
1
281057-02
HOSE ASSY, 3/8” HP, 121” LG.
9
1
224370-20
HOSE, PLASTIC 9” LG.
10
1
906749-01
UNION TEE
11
1
281067-01
FACE SEAL TUBE ASSY
12
1
906744-01
BULKHEAD UNION (WITH O-RING)
13
3
902028-12
FLAT WASHER, 3/4”
14
1
906708-01
ELBOW, 90° FACE SEAL, #6 M-M
15
1
906709-04
FLOW REGULATOR VALVE, 4.5 GPM
16
1
906754-01
BRANCH TEE (WITH O-RINGS)
17
7
906712-02
O-RING, #6 (3/8” FACE SEAL, TUBE-END)
18
3
906712-03
O-RING, #8 (1/2” FACE SEAL, TUBE-END)
19
1
906728-01
DUAL BARBED FITTING
20
2
906762-01
CONNECTOR, M-M, 9/16”-18 X 3/4”
(WITH O-RING)
21
1
281308-01
LOCK VALVE
22
1
906763-01
CONNECTOR ELBOW, M-M, 9/16”-18 X 13/16”-16
(WITH O-RING)
1
2
1A
1B
1C
4
1
69
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
ITEM QTY.
PARTS BREAKDOWN
POWER DOWN HYDRAULIC COMPONENTS
CAUTION
To prevent incorrect operation & damage to Liftgate, make sure
arrow on flow regulator valve points up as shown in illustration.
RH CYLINDER
LH CYLINDER
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
1A
(4 PLACES)
1A
(4PLACES)
1C
(2 PLACES)
1B
1
1C
(2 PLACES)
1B
1
2
20
17
17
18
16
19
16
18
17
4
4
6
11
(3 PLACES)
16
PUMP
MOUNTING
PLATE (REF)
16
7
13
21
14
11
(3 PLACES)
16
16
SEE 12 VDC
POWER UNIT
(POWER DOWN)
12
15
21
NUT
(REF)
16
16
(3 PLACES)
8
10
11
(3 PLACES)
16
5
3
11
(3 PLACES)
NUT (REF)
70
9
1
2
1A
4
PART NO.
DESCRIPTION
280990-01
CYLINDER, 2-3/4” x 11-1/2” STROKE (GPTLR-25/33)
281035-01
CYLINDER, 3-1/4” X 12-1/2” STROKE (GPTLR-44)
281040-01
CYLINDER, 3-1/2” X 12-1/2” STROKE (GPTLR-55)
908046-02
SELF-LUBE BEARING (GPTLR-25/33 CYLINDER)
908047-02
SELF-LUBE BEARING (GPTLR-44/55 CYLINDER)
280990SK-01 SEAL KIT (GPTLR-25/33 CYLINDER)
1B
1
281035SK-01 SEAL KIT (GPTLR-44 CYLINDER)
281040SK-01 SEAL KIT (GPTLR-55 CYLINDER)
1C
2
224342
GREASE FITTING
2
1
906704-01
ELBOW, 90° FACE SEAL, #8 M-M (WITH O-RING)
3
1
282392-01
HOSE ASSY, 3/8” HP, 43” LG.
4
2
906775-01
ELBOW, 90° FACE SEAL, #6 M-M (WITH O-RING)
5
1
281057-02
HOSE ASSY, 3/8” HP, 121” LG.
6
1
282391-01
HOSE ASSY, 3/8” HP, 116” LG.
7
1
282393-01
HOSE ASSY, 3/8” HP, 40” LG.
8
1
282324-01
HOSE ASSY, 3/8” HP, #6 F SWIVEL 90° ELBOW
9
1
282325-01
HOSE ASSY, 3/8” HP, #6 F-F SWIVEL
10
1
906744-01
BULKHEAD UNION, #6 (WITH O-RING)
11
12
902028-12
FLAT WASHER, 3/4”
12
1
906810-01
BRANCH TEE BULKHEAD, #6 (WITH O-RING)
13
1
906708-01
ELBOW, 90° FACE SEAL, #6 M-M (WITH O-RING)
14
1
906709-04
FLOW REGULATOR VALVE, 4.5 GPM
15
1
906745-01
BRANCH TEE, #6 (WITH O-RINGS)
16
12
906712-02
O-RING, #6 (3/8” FACE SEAL TUBE-END)
17
3
906712-03
O-RING, #8 (1/2” FACE SEAL TUBE-END)
18
2
906762-01
CONNECTOR, M-M, 9/16”-18 X 3/4” (WITH O-RING)
19
1
281308-01
HYDRAULIC LOCK
20
1
906763-01
CONNECTOR, M-M, 9/16”-18 X 13/16”-16
(WITH O-RING)
21
2
906707-01
ELBOW, 90°, FACE SEAL, #6 M-M (WITH O-RING)
71
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
ITEM QTY.
PARTS BREAKDOWN
12 VDC POWER UNIT (GRAVITY DOWN)
CAUTION
Do not over-tighten the terminal nuts on starter solenoid. For the load
terminals, torque nuts to 40 lbs.-in. max. Torque the nuts on #10-32 control
terminals 15-20 lbs.-in.
CAUTION
15
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
To prevent damage when installing 2-way valves, torque valve
cartridge nut to 30 lbs.-in. max.
1
3
4
17
5
6
16
4A
4B
2
8
9
7
18
19
12
11
NOTE: MAXON recommends using dielectric
grease on all electrical connections.
72
10
DESCRIPTION
REF
1
282321-01
12 VDC POWER UNIT, GRAVITY DOWN
1
1
280374
12 VDC MOTOR
2
1
290002
3-PIECE GEAR PUMP
3
1
268029-01
SWITCH, SOLENOID (12 VDC)
4
1
290043
VALVE ASSEMBLY, 2-WAY
4A
1
290044
VALVE CARTRIDGE (2-WAY VALVE)
4B
1
290045
COIL, DOUBLE SPADE (2-WAY VALVE)
5
1
906737-01
CARTRIDGE RELIEF VALVE
6
1
906707-01
ELBOW, SAE #6, FACE SEAL O-RING, M-M
7
1
281438-01
RESERVOIR, VERTICAL (5 QUART)
8
1
280806-01
FILLER, BREATHER CAP
9
1
908016-01
RUBBER GROMMET, 3/4” I.D. (FILLER CAP)
10
1
908017-01
PLUG, DRAIN PORT
11
1
908018-01
RUBBER GROMMET, 5/16” I.D. (DRAIN PLUG)
12
1
290061
SEAL, SQUARE CUT (FOR RESERVOIR)
13
1
260261
OIL SEAL (NOT SHOWN FOR 3-PIECE GEAR PUMP)
14
1
290020
O-RING (NOT SHOWN FOR 3-PIECE GEAR PUMP)
15
1
280404
CABLE ASSEMBLY
16
1
280416
WIRE ASSEMBLY (#10 RING & QUICK DISCONN. TERMINALS)
17
1
268027-01
WIRE ASSY, 18 GA (#10 RING & 5/16” RING TERMINALS)
18
1
290075
SUCTION TUBE, PLASTIC
19
1
290073
INLET FILTER
73
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
ITEM QTY. PART NO.
PARTS BREAKDOWN
12 VDC POWER UNIT (POWER DOWN)
CAUTION
Do not over-tighten the terminal nuts on starter solenoid. For the load
terminals, torque nuts to 40 lbs.-in. max. Torque the nuts on #10-32 control
terminals 15-20 lbs.-in.
CAUTION
4
1
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
To prevent damage when installing 2-way valves, torque valve
cartridge nut to 30 lbs.-in. max.
3
2
7
6
18
14
13
3A
3B
15
5A
5B
5
9
16
10
8
17
18
12
NOTE: MAXON recommends using dielectric
grease on all electrical connections.
74
11
DESCRIPTION
REF
1
282331-01
12 VDC POWER UNIT, POWER DOWN
1
1
268176-01
12 VDC MOTOR
2
1
268029-01
SWITCH, SOLENOID (12 VDC)
3
1
906821-01
VALVE ASSEMBLY, 2-WAY
3A
1
290045
COIL, DOUBLE SPADE (2-WAY VALVE)
3B
1
906822-01
VALVE CARTRIDGE (2-WAY VALVE)
4
1
280404
CABLE ASSEMBLY
5
1
290046
VALVE ASSEMBLY, 4-WAY
5A
1
290047
VALVE CARTRIDGE (4-WAY VALVE)
5B
1
290048
COIL, DOUBLE SPADE (4-WAY VALVE)
6
1
268079-01
WIRE ASSEMBLY, 18 GA, (#10 RING & 5/16 RING TERMINALS)
7
1
261067
PLUG, O-RING, SAE #6
8
1
281437-01
RESERVOIR, VERTICAL (5 QUART)
9
1
280806-01
FILLER, BREATHER CAP
10
1
908016-01
GROMMET (FILLER CAP)
11
1
908017-01
PLUG, DRAIN PORT
12
1
908018-01
RUBBER GROMMET, 5/16” I.D. (DRAIN PLUG)
13
1
906738-02
RELIEF VALVE, ADJUSTABLE, 3200 PSI
14
1
268174-01
RELIEF VALVE, ADJUSTABLE, 1100 PSI
15
2
280416
WIRE ASSY (#10 RING & QUICK DISCONN. TERMINALS)
16
1
906781-01
PUMP ASSY, POWER DOWN (GEAR PUMP & MANIFOLD)
17
1
290103
SUCTION TUBE, PLASTIC
18
1
290073
INLET FILTER
75
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
ITEM QTY. PART NO.
DECALS
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
WALK RAMP
WARNING DECAL
(WALK RAMP
EQUIPPED VEHICLES
ONLY)
P/N 265441-01
WALK RAMP
NOTICE DECAL
(WALK RAMP EQUIPPED
VEHICLES ONLY)
P/N 266013-01
INSTRUCTION DECAL
P/N 251867-09.
CAPACITY DECAL
(SEE TABLE 76-1)
TABLE 76-1
WARNING DECAL
P/N 264081
FIG. 76-1
76
CONTROL SWITCH
DECAL
P/N 264507
PAINT DECAL
P/N 267338-01
CAUTION DECAL
(FLIPOVER EQUIPPED WITH LATCH ONLY)
P/N 267694-01
WARNING DECAL
P/N 265736-02
FIG. 77-1
77
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
WARNING DECAL
P/N 265736-03
PARTS BREAKDOWN
NONSKID & SAFETY STRIPING
NONSKID (LH)
P/N 281204-01
NONSKID (RH)
P/N 281204-02
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
SAFETY STRIPE TAPE
(2 PLACES)
P/N 096018-10
FIG. 78-1
78
NOTE: Use switch to RAISE and LOWER Liftgate to make sure switch
operates as shown on the decal.
NOTE: MAXON recommends using dielectric
grease on all electrical connections.
BLACK
WHITE
BLACK
(FOR REFERENCESEE DECALS)
WHITE
GREEN
4
GREEN
3
RED
(POWER DOWN VERSION ONLY)
2
FIG. 79-1
ITEM
QTY.
1
1
2
1
3
PART NO.
DESCRIPTION
268025-01
CABLE ASSEMBLY, 85” LG. (GRAVITY DOWN)
268170-01
CABLE ASSEMBLY, 85” LG. (POWER DOWN)
267959-01
MOLDED SWITCH ASSEMBLY (GRAVITY DOWN)
264951-04
MOLDED SWITCH ASSEMBLY (POWER DOWN)
2
900057-5
SCREW, SELF-TAPPING #10-24 X 1” LG.
4
1
905206
SWITCH BOOT SEAL
5
1
264422
CABLE ASSEMBLY, 200 AMPS, 38’ LG.
6
1
264687
KIT, MEGAFUSE (200 AMP FUSE & HEATSHRINK TUBING)
TABLE 79-1
6
SHORT END TO
VEHICLE BATTERY
5
!
LONG END TO PUMP
MOTOR SOLENOID
WARNING
Do not attach cable to battery until
Liftgate repairs are completed.
FIG. 79-2
79
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
CONTROL SWITCH AND POWER CABLE
SYSTEM DIAGRAMS
PUMP & MOTOR SOLENOID OPERATION (GRAVITY DOWN)
MOTOR
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
STARTER
SOLENOID
“A” VALVE
GRAVITY DOWN POWER UNIT
FIG. 80-1
POWER UNIT MOTOR & SOLENOID OPERATION
LIFTGATE
FUNCTION
RAISE
LOWER
SOLENOID OPERATION
( MEANS ENERGIZED)
PORT
MOTOR
VALVE
“A”
LOCK
VALVE
-
-
A
VENT
-
REFER TO VALVES SHOWN ON
HYDRAULIC SCHEMATIC
TABLE 80-1
80
MOTOR
STARTER
SOLENOID
“A” VALVE
“E” VALVE
POWER DOWN POWER UNIT
FIG. 81-1
POWER UNIT MOTOR & SOLENOID OPERATION
LIFTGATE
FUNCTION
SOLENOID OPERATION
(
MEANS ENERGIZED)
PORT
VALVE
“A”
MOTOR
RAISE
A
LOWER
B
VALVE
“E”
-
-
-
REFER TO VALVES SHOWN ON
HYDRAULIC SCHEMATIC
TABLE 81-1
81
LOCK
VALVE
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
PUMP & MOTOR SOLENOID OPERATION (POWER DOWN)
HYDRAULIC SCHEMATIC (GRAVITY DOWN)
HYDRAULIC CYLINDERS
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
HYDRAULIC
LOCK VALVE
4.5 GPM FLOW
CONTROL VALVE
PORT A - RAISE
PORT B - RETURN
(PLUGGED)
VENT
PORT
FILL HOLE
(PLUGGED)
VALVE A
RELIEF VALVE
(SET AT 3250 PSI)
CHECK VALVE
AUX. HAND
PUMP PORT
(PLUGGED)
PUMP
M
MOTOR
(REF)
FILTER
RESERVOIR
DRAIN HOLE (PLUGGED)
FIG. 82-1
82
HYDRAULIC SCHEMATIC (POWER DOWN)
HYDRAULIC
LOCK VALVE
4.5 GPM FLOW
CONTROL VALVE
PORT B POWER DOWN
PORT A - RAISE
VALVE A
FILTER
RELIEF VALVE 2
(SET AT 1100 PSI)
VALVE E
RELIEF VALVE 1
(SET AT 3200 PSI)
MOTOR
(REF)
PUMP
FILTER
RESERVOIR
DRAIN HOLE (PLUGGED)
FIG. 83-1
83
AUX. HAND
PUMP PORT
(PLUGGED)
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HYDRAULIC CYLINDERS
ELECTRICAL SCHEMATIC (GRAVITY DOWN)
CONTROL SWITCH
WHITE GREEN BLACK
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WHITE GREEN BLACK
CABLE
ASSEMBLY
WHITE
WHITE
SOLENOID,
VALVE A
THERMAL
SWITCH
SOLENOID,
LOCK VALVE
BLACK
BLACK
STARTER
SOLENOID
BLACK
CABLE WITH
200 AMP FUSE
MOTOR
BATTERY
FIG. 84-1
84
RED
(DOWN)
(UP)
BLACK
WHITE
CONTROL SWITCH
GREEN
WHITE
RED
BLACK
GREEN
CABLE
ASSEMBLY
WHITE
WHITE
THERMAL
SWITCH
(IN MOTOR
CASING)
BLACK
SOLENOID,
VALVE A
STARTER
SOLENOID
BLACK
WHITE
GREEN
CABLE WITH
200 AMP FUSE
BATTERY
FIG. 85-1
85
SOLENOID,
LOCK VALVE
BLACK
SOLENOID,
VALVE E
BLACK
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ELECTRICAL SCHEMATIC (POWER DOWN)
RECOMMENDED BOLT TORQUES
CAUTION
The torque values in the following table are provided for torquing grade 8
bolts on Liftgate mechanical parts. To prevent damage, never use the information in this table for torquing electrical or hydraulic hose connections on
the pump assembly.
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
TABLE 86-1
86
87
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THIS PAGE INTENTIONALLY LEFT BLANK
TROUBLESHOOTING
PLATFORM WILL NOT RAISE & MOTOR WILL NOT RUN
1. Connect voltmeter between motor solenoid terminal “B” and ground wires
connection on pump (FIG. 88-1). Verify
that full battery voltage is at “B”. Recharge the battery if voltmeter indicates
less than 12.6 volts dc.
STARTER
SOLENOID
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
TERMINAL “A”
LOAD
TERMINAL “C”
GROUND (-)
TERMINAL “D”
SWITCHED BATTERY (+)
TERMINAL “B”
BATTERY (+)
GRAVITY DOWN POWER UNIT
FIG. 88-1
2. Touch a jumper wire to terminals “B” & “D” (FIG. 88-1).
If motor runs, check control switch, the switch connections,
and white wire. Check and correct wiring connections or
replace the control switch.
3. Touch heavy jumper cables to terminals “A” & “B”
(FIG. 88-1).
a. If motor runs, replace the motor solenoid.
b. If motor does not run, repair or replace the pump motor.
88
1. Do the CHECKING HYDRAULIC FLUID
procedure in this manual. If necessary,
add hydraulic fluid.
ADJUSTMENT
COVER
2. Check for structural damage and replace
worn parts.
CAUTION
Keep dirt, water and other contaminants
from entering the hydraulic system. Before opening the hydraulic fluid reservoir
filler cap, drain plug and hydraulic lines,
clean up contaminants that can get in
the openings. Also, protect the openings
from accidental contamination during
maintenance.
3. Check pump oil filter in the reservoir
(FIGS. 89-1 and 89-2). Clean or
replace filter, if necessary.
RELIEF
VALVE
RESERVOIR
CHECKING THE RAISING RELIEF VALVE
(GRAVITY DOWN POWER UNIT)
FIG. 89-1
ADJUSTMENT
COVER
4. Check for dirty raising relief valve (FIGS.
89-1 and 89-2). Clean or replace
relief valve if necessary.
RELIEF
VALVE
RESERVOIR
CHECKING THE RAISING RELIEF VALVE
(POWER DOWN POWER UNIT)
FIG. 89-2
89
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PLATFORM WILL NOT RAISE, BUT MOTOR RUNS
TROUBLESHOOTING
PLATFORM RAISES BUT LEAKS DOWN
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
1. Check if the “A” (lowering) solenoid valve is constantly energized.
Connect voltmeter negative (-)
lead to ground (-) wires connecSTARTER
tion on pump and positive (+) lead
SOLENOID
to (+) terminal on the “A” (lowering) solenoid valve (FIG. 90-1).
TERMINAL “A”
If voltmeter reads battery voltage,
LOAD
check for faulty wiring or toggle
TERMINAL “C”
switch.
GROUND (-)
TERMINAL “D”
SWITCHED BATTERY (+)
TERMINAL “B”
BATTERY (+)
VALVE “A”
LOWERING
SOLENOID VALVE
GRAVITY DOWN POWER UNIT
FIG. 90-1
90
Keep dirt, water and other contaminants
from entering the hydraulic system. Before opening the hydraulic fluid reservoir
filler cap, drain plug and hydraulic lines,
clean up contaminants that can get in
the openings. Also, protect the openings
from accidental contamination during
maintenance.
2. Make sure platform is on the ground. Remove
lowering solenoid valve (FIGS. 91-1 and
91-2). Push on the plunger in the valve by
inserting small screwdriver in the open end
(FIG. 91-3). If the plunger does not move
with a smooth, spring-loaded action (approximately 1/8”), replace the valve cartridge.
Reinstall lowering solenoid valve. Torque
valve cartridge to 30 lbs.-ft. and hex nut to
30 lbs.-in.
VALVE
CARTRIDGE
COIL
NUT
REMOVING SOLENOID VALVE
(GRAVITY DOWN POWER UNIT)
FIG. 91-1
VALVE
CARTRIDGE
COIL
NUT
REMOVING SOLENOID VALVE
(POWER DOWN POWER UNIT)
FIG. 91-2
VALVE CARTRIDGE
1/8”
CHECKING SOLENOID VALVE
FIG. 91-3
3. Check the hydraulic cylinder. With the platform at vehicle floor level, remove the hydraulic line from the LOWER port on the cylinder (FIG. 91-4). Hold the control switch in
the “RAISE” position for two seconds while
you watch for hydraulic fluid at the LOWER
port. A few drops of hydraulic fluid escaping
the port is normal. However, if fluid streams
out, piston seals are worn. Replace seals.
LOWER PORT
RAISE PORT
FIG. 91-4
91
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CAUTION
TROUBLESHOOTING
PLATFORM RAISES PARTIALLY AND STOPS
1. Lower the opened platform to the ground. Do the
CHECKING HYDRAULIC FLUID procedure in
this manual. If necessary, add hydraulic fluid.
ADJUSTMENT
COVER
2. Use voltmeter to verify the battery voltage is
12.6 volts or more under load from pump motor.
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
3. Check for structural damage and poor
lubrication. Replace worn parts.
RELIEF
VALVE
RESERVOIR
CAUTION
CHECKING THE RAISING RELIEF VALVE
(GRAVITY DOWN POWER UNIT)
FIG. 92-1
Keep dirt, water and other contaminants
from entering the hydraulic system. Before opening the hydraulic fluid reservoir
filler cap, drain plug and hydraulic lines,
clean up contaminants that can get in
the openings. Also, protect the openings
from accidental contamination during
maintenance.
ADJUSTMENT
COVER
4. Check for dirty raising relief valve (FIGS.
92-1 and 92-2). Clean or replace
relief valve, if necessary.
RELIEF
VALVE
RESERVOIR
CHECKING THE RAISING RELIEF VALVE
(POWER DOWN POWER UNIT)
FIG. 92-2
92
6. Check pump oil filter in the reservoir
(FIGS. 94-1 and 94-2). Clean or replace filter, if necessary.
93
LOWER PORT
RAISE PORT
FIG. 93-1
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5. Check the hydraulic cylinder. With the platform at vehicle floor level, remove the hydraulic line from the LOWER port on the cylinder (FIG. 93-1). Hold the control switch in
the “RAISE” position for two seconds while
you watch for hydraulic fluid at the LOWER
port. A few drops of hydraulic fluid escaping
the port is normal. However, if fluid streams
out, piston seals are worn. Replace seals.
TROUBLESHOOTING
LIFTGATE WILL NOT LIFT RATED CAPACITY
1. Use voltmeter to verify the battery voltage is 12.6
volts or more under load from pump motor.
2. Check for structural damage or lack of lubrication. Replace worn parts.
CAUTION
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
Keep dirt, water and other contaminants
from entering the hydraulic system. Before opening the hydraulic fluid reservoir
filler cap, drain plug and hydraulic lines,
clean up contaminants that can get in
the openings. Also, protect the openings
from accidental contamination during
maintenance.
3. Check the 3200 PSI relief valve as
follows. With platform on the ground, remove plug from hand pump port (FIGS.
94-1 and 94-2). Install 0-4000 PSI
pressure gauge in the hand pump port
(FIGS. 94-1 and 94-2). Remove
cover for access to relief valve. Hold the
control switch in the “RAISE” position.
Adjust the relief valve until the gauge
reads 3200 PSI (FIGS. 94-1 and
94-2). Remove guage and reinstall
plug in the port. Then, reinstall relief
valve cover.
RELIEF VALVE
ADJUST SCREW
HAND PUMP
PORT
PRESSURE
GAUGE
ADJUSTMENT
COVER
ADJUSTING RAISING RELIEF VALVE
(GRAVITY DOWN POWER UNIT)
FIG. 94-1
RELIEF VALVE
ADJUST SCREW
HAND PUMP
PORT
4. Check if pump relief valve is dirty. Clean or
replace relief valve, if necessary.
PRESSURE
GAUGE
ADJUSTMENT
COVER
ADJUSTING RAISING RELIEF VALVE
(POWER DOWN POWER UNIT)
FIG. 94-2
94
6. If pump cannot produce 3200 PSI or
lift the load capacity with a minimum of
12.6 volts available, the pump is worn
and needs to be replaced.
LOWER PORT
RAISE PORT
FIG. 95-1
95
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5. Check the hydraulic cylinder. With the platform at
vehicle floor level, remove the hydraulic line from
the LOWER port on the cylinder (FIG. 95-1).
Hold the control switch in the “RAISE” position for
two seconds while you watch for hydraulic fluid at
the LOWER port. A few drops of hydraulic fluid escaping the port is normal. However, if fluid streams
out, piston seals are worn. Replace seals.
TROUBLESHOOTING
PLATFORM WILL NOT LOWER, LOWERS TOO SLOWLY, OR TOO QUICKLY
1. Connect voltmeter (+) lead to
motor solenoid terminal “B” and
the (-) lead to the ground wires
connection on pump (FIG. 961). Verify that full battery voltage
is at “B”. Recharge the battery
if voltmeter indicates less than
12.6 volts dc.
STARTER
SOLENOID
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
TERMINAL “A”
LOAD
TERMINAL “C”
GROUND (-)
TERMINAL “D”
SWITCHED BATTERY (+)
TERMINAL “B”
BATTERY (+)
2. Check for structural damage or poor
lubrication. Replace worn parts.
3. Check if the “D” terminal and “A”
(lowering) solenoid valve are getting
battery voltage (FIG. 98-1). Connect
voltmeter negative (-) lead to ground
(-) wires connection on pump and
positive (+) lead to the “D” terminal
(FIG. 96-1). Hold control switch in
the
STARTER
“LOWER” position. Then, connect
SOLENOID
voltmeter (+) lead to (+) terminal on
the “A” (lowering) solenoid valve
TERMINAL “A”
(FIG. 96-1). If voltmeter shows a
LOAD
much lower reading than +12.6 volts
dc or a reading of 0 volts, check for TERMINAL “C”
GROUND (-)
faulty control switch and wiring, battery cable, ground wire connections
in pump assembly, and pump motor.
VALVE “A”
LOWERING
SOLENOID VALVE
GRAVITY DOWN POWER UNIT
FIG. 96-1
TERMINAL “D”
SWITCHED BATTERY (+)
TERMINAL “B”
BATTERY (+)
VALVE “A”
LOWERING
SOLENOID VALVE
POWER DOWN POWER UNIT
FIG. 96-2
96
Keep dirt, water and other contaminants
from entering the hydraulic system. Before
opening the hydraulic fluid reservoir filler
cap, drain plug and hydraulic lines, clean
up contaminants that can get in the openings. Also, protect the openings from accidental contamination during maintenance.
CAUTION
FLOW
CONTROL
VALVE
To prevent damage to flow control
valve, do not disassemble the valve.
4. Make sure platform is on the ground. Check
the flow control valve as follows. Remove
flow control valve (FIG. 97-1). Ensure the
flow control valve operates with a smooth
spring-loaded action. Check for debris inside
the valve. Clean or replace the flow control
valve, if necessary. Reinstall flow control
valve (if good) or a replacement.
FLOW CONTROL VALVE ON BACK OF
GRAVITY DOWN PUMP ASSEMBLY
FIG. 97-1
FLOW CONTROL
VALVE
FLOW CONTROL VALVE ON BACK OF
POWER DOWN PUMP ASSEMBLY
FIG. 97-2
5. Check the lowering solenoid valve as follows.
Check if filtering screen is plugged. Clean
carefully if required. Push on the plunger in
the valve by inserting small screwdriver in the
open end (FIG. 97-2). If the plunger does not
move with a smooth, spring-loaded action (approximately 1/8”), replace the valve cartridge.
Reinstall lowering solenoid valve (if good) or
a replacement. Torque valve cartridge to 30
lbs.-ft. and hex nut to 30 lbs.-in.
97
VALVE CARTRIDGE
1/8”
CHECKING SOLENOID VALVE
FIG. 97-3
11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
CAUTION