O-Ring & Seal Kit Replacement; Valve Cartridge & O-Ring Replacement; Cleaning Release Valve; Adjusting Up-Down Cam - Jet EQUIPMENT & TOOLS “W” Series Operator's Manual

3. Remove screw (#83) and empty the oil into
a suitable container. Pump handle until all
oil has drained.
4. Pull out ram piston or plunger piston.
5. Remove pump cap (#66) for Piston
6. Remove all O-Rings & Seals.
7. Insert new O-Ring or Seal one at a time
making sure to replace with the same size
that was removed.
8. Reassemble.
9. Refill oil to correct level through #65. 80%
capacity or approximately 2 inches deep in
reservoir.
O-Ring and Seal Replacement for Valve
Cartridge
1. Remove screw (#83) and empty the oil into
a suitable container. Pump handle until all
oil has drained.
2. Tap out spring pin (#79).
3. Remove the lowering lever (#76).
4. Unscrew the valve cartridge (#80).
5. Remove all O-Rings & Seals.
6. Insert new O-Ring or Seal one at a time
making sure to replace with the same size
that was removed.
7. Assemble the valve cartridge and lowering
lever.
8. Refill oil to correct level #65. 80% capacity
or approximately 2 inches deep in reservoir.
Cleaning the Release Valve
(Bleeding the Pump)
Over time the release valve assembly may
become clogged with debris. To clean the
release valve:
1. Pump handle quickly raising pallet truck to
full extent. While continuing pump action,
pull lever to down position.
2. When forks reach total down position, valve
is flushed. Repeat if necessary.

Adjusting Up-Down Cam

1. Place lever in the neutral position.
2. Loosen #78 hex nut.
3. Adjust #77 hex socket screw while pumping
the handle.
4. The cam is properly adjusted when pumping
the handle in the neutral position causes no
movement.
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