Maxon GPTLR Series - Checking Hydraulic Fluid

11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
17
CAUTION
Pump cover must be correctly se-
cured to prevent it from becoming
a hazard. To secure pump cover,
the long side of the holder fl ats
must butt against pump cover as
shown in the illustration.
1. Unbolt and remove pump cover
(FIG. 17-1).
CHECKING HYDRAULIC FLUID
3. If needed, add fl uid to the reservoir as fol-
lows. Unscrew breather cap (FIG. 17-2).
Fill the reservoir with hydraulic fl uid to level
shown in FIG. 17-2. Reinstall breather cap
(FIG. 17-2).
4. Bolt on the pump cover as shown in
FIG. 17-1. Apply anti-seize to threads
of fasteners.
2. Check the hydraulic fl uid level
in reservoir as follows. With
Liftgate stowed, or platform at
vehicle bed height, level should
be as shown in FIG. 17-2.
NOTE: If the hydraulic fl uid in the
reservoir is contaminated, do
the CHANGING HYDRAULIC
FLUID procedure in this section.
CAUTION
Keep dirt, water and other contaminants from entering the hydraulic system.
Before opening the hydraulic fl uid reservoir fi ller cap, drain plug and hydrau-
lic lines, clean up contaminants that can get in the openings. Also, protect the
openings from accidental contamination.
NOTE: Liftgate is shipped with ISO 32 oil. Use correct oil for climate conditions.
+50 to +120 Degrees F - Grade ISO 32
Below + 70 Degrees F - Grade ISO 15 or MIL-H-5606
See TABLES 18-1 & 18-2 for recommended brands of ISO 32 & ISO 15 oils.
POWER UNIT FLUID LEVEL
FIG. 17-2
UNBOLTING/BOLTING PUMP COVER
FIG. 17-1
FLAT WASHER,
3/8” X 1/16”
(2 PLACES)
COVER BRACKET
(2 PLACES)
PUMP COVER
CAP SCREW,
3/8”-16
(2 PLACES)
NUT, 3/8”-16
(2 PLACES)
BREATHER
CAP
RESERVOIR