TM 9-6115-729-24
0082
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.
3. Position suitable drain pan below coolant drain, located below right front door assembly (latch).
NOTE
Engine coolant capacity is 38 quarts (35.9 L).
4. Open coolant drain valve (Figure 1, Item 1), located below and to the right rear of the radiator. Drain 8-10
quarts (7.5-9.5 L) of coolant into drain pan. Save coolant for refilling.
5. Place several rags under thermostat housing (Figure 1, Item 2) to soak up spills.
6. Remove six screws (Figure 1, Item 3), washers (Figure 1, Item 4), thermostat elbow (Figure 1, Item 5), and
gasket (Figure 1, Item 6) from thermostat housing (Figure 1, Item 2). Discard gasket.
7. Remove two thermostats (Figure 1, Item 7) from thermostat housing (Figure 1, Item 2).
8. Scrape gasket debris from thermostat housing (Figure 1, Item 2) and thermostat elbow (Figure 1, Item 5).
END OF TASK
INSTALLATION
1. Apply sealing compound to gasket contact surface of thermostat housing (Figure 1, Item 2).
2. Position gasket (Figure 1, Item 6) on thermostat housing (Figure 1, Item 2).
3. Install two thermostats (Figure 1, Item 7), short end up, on thermostat housing (Figure 1, Item 2).
4. Apply sealing compound to mating surface of thermostat elbow (Figure 1, Item 5).
5. Install thermostat elbow (Figure 1, Item 5) on thermostat housing (Figure 1, Item 2) and secure with six
washers (Figure 1, Item 4) and screws (Figure 1, Item 3). Tighten screws evenly.
6. Close coolant drain valve (Figure 1, Item 1).
7. Refill coolant system with coolant from drain pan.
WARNING
Operating the generator set with any access door open exposes personnel to a high noise level.
Double hearing protection must be worn when operating or working near the generator set with
any access door open. Failure to comply can cause hearing damage to personnel.
8. Operate engine and check for leaks.
9. Close right front door.
0082-2
