TM 9-2320-363-34-2
WATER PUMP REPAIR (CONT)
22.
INSTALL WASHER (22) AND GEAR RETAINING BOLT (23). HOLD SQUARE END OF WATER PUMP
SHAFT (3). TIGHTEN BOLT (23) TO 75-93 LB-FT (101-126 N.m).
23.
24.
2
5 .
TURN WATER PUMP OVER, GEAR SIDE DOWN. CLAMP WATER PUMP DRIVE GEAR (20) IN
SOFT-JAWED VISE WITH WATER PUMP IMPELLER (18) FACING UP.
INSTALL WATER PUMP IMPELLER SLIP TESTER (24) IN TAPPED HOLES PROVIDED IN
IMPELLER (18). TIGHTEN BOLTS TO 13-17 LB-FT (18-23 N.m).
USING 1/2-lN. DRIVE TORQUE WRENCH, INSERT 1/2-lN. DRIVE IN HOLE PROVIDED IN CENTER
OF SLIP/LASH TESTER. APPLY 50 LB-FT (68 N.m) TORQUE IN EITHER DIRECTION. IMPELLER
(18) MUST WITHSTAND TORQUE WITHOUT SLIPPING. IF IMPELLER SLIPPAGE IS DETECTED,
REMOVE AND DISCARD IMPELLER (18). INSTALL NEW IMPELLER AND RETEST. REMOVE
SLIP/LASH TESTER (24) AFTER TESTING.
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