TM 9-6115-729-24
0077
WARNING
Cooling system operates at high temperature and pressure. Contact with high pressure steam
and/or liquids can result in burns and scalding. Shut down generator set, and allow system to cool
before performing checks, services, and maintenance. Failure to comply can cause injury or
death to personnel.
REMOVAL
1. Ensure generator set is fully stopped, ENGINE CONTROL switch is OFF/RESET, Battery Disconnect Switch is
OFF, and DEAD CRANK SWITCH is OFF before proceeding.
2. Open right front door and left front door.
3. Place suitable container under coolant drain on front right side of TQG. Open drain valve on right side at rear
of engine and drain valve on front right side bottom of engine, and drain approximately two gallons of coolant.
Save coolant for refilling system.
4. Loosen pulley assembly mounting bracket bolt (Figure 1, Item 1), remove slot bolt (Figure 1, Item 2) and
washer (Figure 1, Item 3), and move pulley (Figure 1, Item 4) to relax tension on water pump belt (Figure 1,
Item 5). Remove water pump belt (Figure 1, Item 5). Remove pulley assembly mounting bracket bolt (Figure 1,
Item 1), washer (Figure 1, Item 6), and pulley assembly (Figure 1, Item 7) and O-ring (8).
5. Remove clamp (Figure 1, Item 9) and hose (Figure 1, Item 10) from top right side of water pump (Figure 1,
Item 11). Remove clamp (Figure 1, Item 12) hose (Figure 1, Item 13), elbow (Figure 1, item 14), and O-ring
(Figure 1, item 15) from top left side of water pump (Figure 1, Item 11).
6. Remove hose clamp (Figure 1, Item 16) and lower radiator hose (Figure 1, Item 17) from water pump (Figure
1, Item 11).
7. If winterization kit is installed, remove hose clamp (Figure 1, Item 18), heater hose (Figure 1, Item 19), shut-off
valve (Figure 1, Item 20), elbow (Figure 1, Item 21), fitting (Figure 1, Item 22), and O-ring (23) from water
pump (Figure 1, Item 11).
8. Remove four bolts (Figure 1, Item 24) and water pump (Figure 1, Item 11).
9. Remove O-ring (Figure 1, item 25).
10. Remove plug (Figure 1, item 26) and O-ring (Figure 1, item 27), if necessary.
END OF TASK
INSTALLATION
1. Install O-ring (Figure 1, item 27) and plug (Figure 1, item 26), if necessary.
2. Install O-ring (Figure 1, item 25) into recessed hole at rear of water pump (Figure 1, item 11).
3
Install water pump (Figure 1, Item 11) and secure with four bolts (Figure 1, Item 24). Torque bolts (WP 0089).
0077-2
