JETStream X Series - Crosshead Pony Rod Seals

77
X-Series Waterblast Unit
3. Place the green inboard seal into position
on top of the outboard seal and orient the
seal (Figure 152). Press the seal into the
plate until it is ush with the face of the
plate. Use caution to avoid damaging the
seal.
4. Install a new O-ring (Figure 153) onto the
seal plate. Lubricate the O-ring with O-ring
lubricant.
5. Lubricate the inner seals with clean oil.
6. Repeat the prior steps for the remaining
seal plates, if necessary.
7. Clean the seal plate bore and chamfer
with emery cloth. Smooth any rough
edges that can cut or damage the O-ring.
8. Carefully install the seal plate onto the
pony rod and into the bore using hand
pressure only. Do not hammer the plate
into place. The plates must be ush with
the frame.
9. Using a 1/4” hex drive, tighten the set
screw that secures the plate to 15 in.-lb.
(1694 mN·m) inside the access holes.
10. Install the deector (Figure 154) onto the
pony rod.
11. Extend the plunger from the stufng box
to meet the pony rod.
12. Place the plunger coupling into position
and install the capscrews that secure the
plunger. Tighten to 20 ft.-lb.(27 N·m).
13. Place the rubber washers into position on
the frame and then place the cover into
position. Install the three capscrews and
washers that secure the cover.
14. Add oil to the crankcase as outlined in
“Changing the Power End Oil” on page
71.
Figure 152: Inboard Seal Installation.
Inboard Seal
Figure 153: O-Ring Installation.
O-Ring
Deflector
Plunger Coupling
Plunger
Figure 154: Plunger Connection.