(2) If you are installing the same pump you
(2) Disconnect all suction and discharge
removed, use shims (8, 9, and 10, fig. 2-21) having the
piping from the pump.
same thickness as the ones removed. If a different
pump is being installed, provide shims having proper
(3) Disconnect the suction and pressure
thickness for aligning the bearing housing with the
gage piping from the pump (TM 5-4320-234-12, para 4-
flywheel housing of the engine. Slide the pump into
engagement with the engine so that the coupling halves
are properly alined.
(4) Place a rope sling around the pump
and support the weight of the pump with a hoist or
(3) Secure the bearing housing of the
pump to the flywheel housing of the engine with nuts (2)
and lock washers (3). Secure the pump feet to the
(5) Remove the nuts (2) and lockwashers
chassis frame with cap screws (6), nuts (4) and lock
(3) that secure the bearing housing of the pump (7) to
washers (5), making sure the shims are in place.
the flywheel housing of the engine.
(4) Connect the suction and pressure gage
(6) Remove the cap screws (6), nuts (4),
piping (TM 5-4320-234-12, para 4-47).
and lock washers (5) that secure the pump to the
chassis. Operate the hoist or crane so that the pump
Install the drain plug (1, fig. 2-21).
feet barely clear the chassis frame. Pull the pump
straight out to disengage the pump half of the flexible
coupling from the engine half of the coupling. Be
2-10. Flexible Coupling
careful not to lose the cushions that are installed
between the coupling halves. Remove the pump and
Removal and Disassembly.
shims (8, 9, and 10).
(1) Remove the assembled pump and
Remove the flexible coupling (para 2-
bearing housing from the engine and chassis frame as
directed in paragraph 2-9. The one half of the coupling
assembly will remain with the engine; the other half will
remain with the pump.
Install the flexible coupling (para 2-10).
(2) Remove the sleeves (1, fig. 2-22) to
release the cushions (2) from the coupling halves (7 and