Maxon GPTLR-44 - Pump Cover Removal and Fluid Check

11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
40
STEP 8 - CHECKING HYDRAULIC FLUID
1. Unbolt and remove pump cover
(FIG. 40-1).
UNBOLTING PUMP COVER
FIG. 40-1
3. If needed, add fl uid to the reservoir as fol-
lows. Pull out (no threads) fi ller cap (FIG.
40-2). Fill the reservoir with hydraulic fl uid to
level shown in FIG. 40-2. Reinstall fi ller cap
(FIG. 40-2).
POWER UNIT FLUID LEVEL
FIG. 40-2
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. 40-2.
CAUTION
Pump cover must be correctly
secured to prevent it from be-
coming a hazard. To secure pump
cover, the long side of the holder
fl ats must butt against pump cov-
er as shown in the illustration.
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.
+50 to +120 Degrees F - Grade ISO 32
Below + 70 Degrees F - Grade ISO 15 or MIL-H-5606
NOTE: Liftgate is shipped with ISO 32 oil. Use correct oil for climate conditions.
See TABLES 40-1 & 40-2 for recommended brands of ISO 32 & ISO 15 oils.
4. Bolt on the pump cover as shown
in FIG. 40-1. Torque the bolts (cap
screws) to 10-14 lb-ft.
CAP SCREW,
5/16”-18
(2 PLACES)
HOLDER FLAT
(2 PLACES)
FLAT WASHER,
5/16”
(2 PLACES)
NYLON NUT,
5/16”-18
(2 PLACES)
PUMP COVER
POWER UNIT
(REF)
FILLER
CAP
RESERVOIR
3” +/- 1/2” (PD)
2” +/- 1/2” (GD)