Jet JTX-2748A Operating Instructions Manual page 7


Pull out piston rod assembly (#414). If
plunger piston (#401) is to be pulled out,
remove handle assembly to access.

Remove all O-Rings & Seals.

Insert new O-Ring or Seal one at a time
making sure to replace with the same size
that was removed. (Order appropriate JET
seal kit.)

Re-assemble.

Refill oil to bottom of fill hole with hydraulic
jack oil. Install oil fill plug.
7.4.2 Valve cartridge

Remove drain plug (see Figure 7-1), and
empty the oil into a suitable container.
Pump handle until all oil has drained.

Tap out roll pin (#422).

Remove relief cam (#421).

Unscrew and remove valve assembly
(#418).

Install new valve assembly (see sect. 10.0
for part number) and tighten.

Install relief cam with roll pin.

Refill oil to bottom of fill hole with hydraulic
jack oil. Install oil fill plug.
7