Replace The Hydraulic Tank Return Filter Element - Genie GTH-636 Service Manual

June 2007
REV B
D-3
Replace Hydraulic Tank Return
Filter Element
Note: Genie specifications require that this
procedure be performed every 1000 hours or
annually, whichever comes first
Replacing the hydraulic return filter element is
essential to good machine performance and
service life. A dirty or clogged filter element may
cause the machine to perform poorly and
continued use may cause component damage.
Extremely dirty conditions may require that the
filter element be replaced more often.
Bodily injury hazard. Beware of
hot oil. Contact with hot oil may
cause severe burns.
Note: Perform this procedure with the engine off.
1 Start the engine. Retract the boom and lower
the forks to the ground. Shut off the engine.
2 Working from the rear of the machine, release
the pressure in the oil reservoir by loosening
the filler/breather cap.
3 Loosen, but do not remove, the four bolts on top
of the return filter assembly.
Bodily injury hazard. The return
filter assembly cover is spring
loaded. Do not remove the bolts.
Part No. 97487 GTH-636 • GTH-644 • GTH-842 • GTH-844 • GTH-1048 • GTH-1056
Section 3 • Scheduled Maintenance Procedures
CHECKLIST D PROCEDURES
4 Carefully push down and rotate the cover
clockwise to remove.
5 Remove the cover spring and pull the filter
element out using the swivel handle on the
element.
Note: Before installing the new filter element, make
sure both o-rings are in place inside the new filter
element, then transfer the bypass valve into the
new filter element.
6 Install the new filter element, cover spring and
cover, making sure the o-ring is in place
between the cover and the return filter
assembly.
7 Securely tighten the four bolts that hold the fuel
filter assembly cover in place. Do not over
tighten.
8 Tighten the filler/breather cap.
9 Record the hours the filter element was
replaced and keep with your maintenance
records.
10 Start the engine.
11 Inspect the filter assembly to be sure that there
are no leaks.
12 Clean up any oil that may have spilled during
the installation procedure.
3 - 31