11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713
13
CHECKING HYDRAULIC OIL
1. Unbolt & remove pump cover
(FIG. 13-1).
2. For gravity down power unit, check the
hydraulic fl uid level “H” in reservoir (FIG.
13-2 and TABLE 13-1). If needed, add
fl uid to the reservoir as follows.
PLATFORM POSITION
FLUID LEVEL
“H”
STOWED 1-7/8” to 2-3/8”
VEHICLE BED HEIGHT 1-7/8” to 2-3/8”
ON THE GROUND 3-1/2” to 4”
GRAVITY DOWN FLUID LEVEL
TABLE 13-1
3. Pull out (no threads) fi ller cap (FIG. 13-2).
Fill the reservoir with hydraulic fl uid to level
“H” shown in FIG. 13-2 and TABLE 13-1.
Reinstall fi ller cap (FIG. 13-2).
NOTE: If the hydraulic fl uid in the
reservoir is contaminated, do
the CHANGING HYDRAULIC
FLUID procedure in this
section.
NOTE: If you have a power down
power unit, skip instructions 2
& 3.
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
hydraulic lines, clean up contaminants that can get in the openings. Also,
protect the openings from accidental contamination.
UNBOLTING / BOLTING PUMP COVER
FIG. 13-1
PUMP COVER
FLAT WASHERS
(5 PLACES)
POWER UNIT
(REF)
CAP SCREWS
(5 PLACES)
GRAVITY DOWN POWER UNIT
FIG. 13-2
FILLER CAP
RESERVOIR
“H”
+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 14-2 & 14-3 for recommended brands of ISO 32 & ISO 15 oils.
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