TM-9-2320-273-10
TRUCK, TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER
TECHNICAL MANUAL; OPERATOR’S MANUAL
DECEMBER 2012
TM-9-2320-273-10 - Page 371 of 452
FILLING EMPTY COOLING SYSTEM - CONTINUED
7. Start engine, and allow engine to reach normal operating temperature of
165–195° F (74–91° C) for M915 through M920 or 180–200° F (82–93° C) for
M915A1.
8. Open and close oil cooler drain cock (Figure 3, Item 3) and thermostat manifold
drain cock (Figure 3, Item 2) to allow any remaining air to escape from cooling
system.
9. Recheck coolant level and add coolant as necessary until coolant level is even
with top of radiator sight glass (Figure 4, Item 2).
10. Install radiator cap (Figure 4, Item 1) on radiator filler neck (Figure 4, Item 3).
11. Check for leaks.
END OF TASK
Figure 3. Filling Empty Cooling System.
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2
3
4
5
~
6
Figure 4. Checking Coolant Level.
1
2
3
TM 9-2320-273-10
0029
0029-5
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