11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
13
CHECKING HYDRAULIC FLUID
1. With platform at bed height, check oil level
in the pump reservoir (FIG. 13-1). To add
oil, pull out fi ller cap (no threads) (FIG.
13-1). Add hydraulic oil in reservoir to the
level shown in FIG. 13-1.
2. Reinstall fi ller cap (FIG. 13-1).
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.
FILLER CAP
RESERVOIR
PUMP RESERVOIR
(GRAVITY DOWN POWER UNIT SHOWN)
FIG. 13-1
1-7/8” - 2-3/8” (GD)
2-5/8” - 3-1/8” (PD)
3. Bolt on the pump cover as shown
in FIG. 13-2. Torque the bolts (cap
screws) to 10 - 14 lb-in.
BOLTING ON PUMP COVER
FIG. 13-2
NOTE: Liftgate is shipped with ISO 32 oil. Use correct oil for climate conditions.
See TABLES 14-1 & 14-2 for recommended brands of ISO 32 & ISO 15 oils.
NOTE: Hydraulic oil level must be mini-
mum of 1-1/2” above the bottom
of reservoir to operate Liftgate.
POWER UNIT
(REF)
PUMP COVER
CAP
SCREWS
(5 PLACES)
FLAT
WASHERS
(5 PLACES)
PUMP MOUNT
PLATE
CAUTION
+50 to +120 Degrees F - Grade ISO 32
Below + 70 Degrees F - Grade ISO 15 or MIL-H-5606
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