77
TwinForce™ Series Waterblast Unit
4. Install the charge pump drive belt.
5. If a hoist is available, attach a hoist and
appropriate lifting apparatus to the belt
guard. Lift the belt guard from the unit. The
weight of the belt guard is approximately
70 lb (32 kg). If a hoist is not available, use
two people to carefully lift the guard from
the unit.
6.
Install the five nuts and washers that se
-
cure the guard to the unit (Figure 142).
Crosshead Pony Rod Seals
Removal
1. Relieve pressure from the pump, shut off
the engine and disengage the clutch.
2. Turn off the water supply and drain the
water tank.
3. Drain the oil from the crankcase. Refer to
“Changing the Power End Oil” on page 73
for instructions.
4. Open the rod box cover.
5. Disconnect the water lubrication lines if
desired for easier access.
6. Position the pony rod to be serviced so that
it is at top dead center (plunger fully
extended towards the crankshaft). Pull on
the drive belts to rotate the pump (Figure
145).
7. Remove the two capscrews that secure the
plunger coupling (Figure 146) to the plung-
er and remove the coupling. Rotate the
pump until the pony rod is fully retracted.
Note:
The coupling halves are a machined
pair. Keep the two halves together.
8.
Slide the rubber deflector (
Figure 146) off of
the pony rod.
9. Remove the three capscrews and washers
that secure the rod box cover to the frame.
Remove the cover. Remove the rubber
washers that sit below the mounting plate.
10.
Using a 1/4” hex driver, loosen the set
screw inside the bolt hole 2-3 full revolu-
tions (Figure 147).
WARNING
!
!
Use caution when rotating the pump as this can
be a pinch hazard.
Figure 145: Rotating the Belt Drive.
Figure 146: Plunger Coupling Removal.
Deflector
Plunger Coupling
Plunger
Figure 147: Set Screw Access.
Hex Driver
Summary of Contents for TwinForce Series
Page 1: ...OPERATION MANUAL TwinForce Series Waterblast Unit...
Page 2: ...Visual Safety System...
Page 11: ...3 TwinForce Series Waterblast Unit...
Page 22: ...14 Operation Manual...
Page 42: ...34 Operation Manual...
Page 48: ...40 Operation Manual...
Page 52: ...44 Operation Manual...
Page 100: ...92 Operation Manual...
Page 104: ...96 Operation Manual...
Page 106: ...A 2 Appendix A Technical Specifications...
Page 107: ...B 1 TwinForce Series Waterblast Unit APPENDIX B LONG TERM STORAGE PROCEDURE...