JETStream 4200 series - Unx Pump

Bareshaft Pump
63
Installation
1. Place the crosshead/connecting rod assem-
blies into position inside of the crankcase.
2. Install the crankshaft as outlined in “Installa-
tion” on page 66.
UNx Pump
Removal
1. Drain the water tank.
2. Remove the bypass hose and supply hose
(Figure 125). If the supply hose is connected
to the secondary lter, disconnect it from the
lter.
3. Remove the two screws that secure the hy-
dro-throttle switch housing to the cartridge and
disconnect the switch.
4. If equipped, the secondary lter switch must
be disconnected. Remove the two screws that
secure the switch cover (Figure 126) and dis-
connect the wiring. Unscrew the conduit tting
from the switch housing and lay the conduit and
wiring aside.
5. Remove the belts.
6. Use a marker to mark the location of the pump
footings for easier installation.
7. Remove the four pump mounting capscrews
and nuts.
8. Attach a hoist and lifting apparatus to the
pump as shown (Figure 127). The weight of
the pump is approximately:
• 3000 Series: 1200 lb. (544 kg)
• 3600/4200 Series: 2200 lb. (998 kg)
9. Lift the pump from the unit and place in a suit-
able location for servicing.
10. If shims were under the pump, keep the shims
together and note their proper location.
Figure 127: Lifting the Pump.
Figure 125: Pump Removal Preparation.
Throttle Switch
Bypass Hose
Supply Hose
Figure 126: 40K Switch Wiring.
Conduit Fitting
Switch Cover