SECTION 4 - HYDRAULICS
3121166 – JLG Lift – 4-9
3. If replacing filter, pull old filter off the end of the tube
and push new filter onto the end of tube.
4. Thoroughly clean the tank and clean any debris
from the magnet.
5. Wipe out tank with clean, lint free rag, taking care
not to introduce debris or dirt.
6. Replace the tank. Torque mounting bolts to 20-25 in-
lb.
7. If only replacing the oil filter and maintenance is
complete, reinstall cylinder assembly on machine,
remove fill plug and refill tank with proper grade of
oil by using a funnel. Fill until oil weeps out of open-
ing.
8. Replace plug and torque to 40 ft. lbs (56 Nm).
9. To remove the oil pickup line, squeeze retainer and
slide outward.
NOTE: There are two o-rings located in the valve for the
pump outlet.
10. Replace the o-rings if necessary.
11. Remove allen nut on the return/filter line and rotate
large retainer ring to remove return/filter line.
12. With the return line and the pickup tube removed,
the pump can be removed.
13. Loosen and remove the two hexhead nuts from the
pump and block.
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