TM 9-6115-730-24
0081
CAUTION
All fittings and openings must be capped or plugged immediately after opening to prevent
contamination of the engine.
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 doors.
3. Place suitable container under coolant drain on right front side of TQG. Open drain valve (Figure 1, Item 1) on
lower right front of engine, below radiator, and drain approximately 2 gallons (7.5 L) of coolant. Save coolant
for refilling system.
4. For optional winterization kit only, loosen hose clamp (Figure 1, Item 2) and disconnect hose (Figure 1, Item 3)
and remove valve (Figure 1, item 4).
5. If optional winterization kit is not present, remove three plugs (Figure 1, item 5) if necessary.
6. Loosen hose clamp (Figure 1, Item 6) and disconnect hose (Figure 1, Item 7).
7. Remove two bolts (Figure 1, Item 8) and washers (Figure 1, Item 9).
8. Remove four plain studs (Figure 1, Item 10), washers (Figure 1, item 11), and thermostat housing (Figure 1,
Item 12).
9. Remove two thermostats (Figure 1, Item 13), seals (Figure 1, Item 14), and gasket (Figure 1, Item 15).
END OF TASK
INSTALLATION
1. Install two seals (Figure 1, Item 14) into thermostat housing (Figure 1, Item 12) with lips toward inside of
housing. Moisten seals (Figure 1, Item 14) with small amount of coolant mixture.
2. Install two thermostats (Figure 1, Item 13), large side first, into thermostat housing (Figure 1, Item 12).
3. Position gasket (Figure 1, Item 15) onto thermostat housing (Figure 1, item 12) and install thermostat housing
with two washers (Figure 1, item 9) and bolts (Figure 1, item 8). Tighten bolts.
4. Install four washers (Figure 1, Item 11) and plain studs (Figure 1, Item 10). Tighten studs.
5. Connect hose (Figure 1, Item 7) and tighten hose clamp (Figure 1, Item 6).
6. If optional winterization kit is not present, install three plugs (Figure 1, item 5) if required.
7. For optional winterization kit only, install valve (Figure 1, item 4), connect hose (Figure 1, Item 3) and tighten
hose clamp (Figure 1, Item 2).
0081-2
