TM-9-2320-272-23-2
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 2 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-2 - Page 495 of 1417
PRIMING LUBRICATION SYSTEM
CAUTION
All follow-on maintenance tasks must be complete before starting lubrication procedures.
1.
Perform follow-on maintenance tasks.
CAUTION
Engine lubrication system cannot be primed through bypass filter.
2.
Remove pipe plug (Figure 26, Item 3) from gearcase cover flange (Figure 26, Item 1) on left side of engine
(Figure 26, Item 2).
3.
Connect oil primer pump to orifice (Figure 26, Item 4) in gearcase cover flange (Figure 26, Item 1).
4.
Prime until 30 psi (207 kPa) of pressure is obtained.
CAUTION
Do not crank engine continuously for more than 30 seconds. Wait 2 to 5 minutes before
repeating to prevent starter motor damage.
5.
Close fuel shutoff valve and crank engine 15 seconds while maintaining 15 psi (103 kPa) pump pressure.
6.
Disconnect oil primer pump and replace pipe plug (Figure 26, Item 3) in gearcase cover flange
(Figure
26,
Item 1). Tighten pipe plug 60 to 70 lb-ft (81 to 95 N·m).
2
3
1
4
M9380DAA
Figure 26.
Priming Lube System.
7.
Check oil level (TM 9-2320-272-10).
END OF TASK
TM 9-2320-272-23-2
0213
0213-34
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