Maxon GPTLR-25, Installation Manual

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1
1921 Slauson
A
ve. Santa Fe Springs, CA. 90670 (800) 227-41
16 F
AX (888) 771-7713
89
Pre-Installation Inspection:

Correct model

Correct capacity
 Correct platform size  Correct options

Manuals & decals
Structural Inspection:
 Inspect alignment of fi nal assembly

Inspect pump box secure mounting
 Inspect all installation welds

Check roll pins, bolts and fasteners
 Inspect tightness of hardware used to secure
liftgate to vehicle.
 Ensure platform ramp tip touches ground or is
not more than
1/4”
off the ground.
 Ensure bottom of underride tube is not more
than
21-1/2”
off the ground and not more than
11”
forward of the extreme rear of vehicle.
Hydraulic Inspection:

Proper fl uid level (See
CHECKING
HYDRAULIC FLUID
step in this manual.)

Check hydraulic fi ttings in pump box for leaks
 Check hydraulic line connections for leaks
Electrical Inspection:

Check power/charge plug and terminal
 Check for tight wire connections

Circuit breaker (150A) installed in battery box
(if equipped) or by truck/tractor battery.

Ensure batteries are fully charged, all cable
connections are tight & tiedowns are tight.

Inspect all solenoid connections
 Check all wiring harness connections

Check electrical cable connections are tight &
secure.
Operation Inspection:

Check operation of all main and optional
control switches.
GPTLR-25 or GPTLR-33 only

Unloaded platform lowers in
6 sec
.
 Unloaded platform raises in
15 sec
.
GPTLR-44 or GPTLR-55 only
 Unloaded platform lowers in
10 sec
.

Unloaded platform raises in
25 sec
.

All GPTLR:
Unloaded platform raises and
lowers evenly. At the extension plate, platform
must not be more than
1/4”
uneven, from side
to side.

All GPTLR:
Breakaway force to unfold plat-
form is
30 lb-ft
maximum. Breakaway force to
fold platform is
40 lb-ft
maximum.

All GPTLR:
Platform stores securely under
vehicle body
 Check if cycle counter works

Decals in correct location and legible
Verify all lights are operational
(For lights supplied by MAXON only)
 Platform lights turn
ON
when platform is un-
folded, and turn
OFF
when platform is stowed.
 Taillights, stop lights, turn lights, and backup
lights turn
ON
and
OFF
correctly.
NOTE: The following times are for 55” bed
height, aluminum platform and
fl ipover, Exxon Univis HVI-13 oil,
& temperature at 70°F. Times are
for reference only and may vary for
larger platforms, smaller platforms,
or temperature changes.
Model:______________________ Date: ____________________
Serial Number: _______________ Technician: _______________
PRE-DELIVERY INSPECTION FORM
Important!
This pre-delivery checklist is to aid the installer in con fi rming the proper installation of
this Maxon product. It is not a comprehensive list and does not replace the use of the installation
manual. The installer is responsible for following all instructions in the installation manual.