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 1001 of 1417
SUPPLY TUBE REMOVAL
1.
Loosen two flare nuts (Figure 1, Item 5) and remove coolant supply tube (Figure 1, Item 6) from water pump
adapter (Figure 1, Item 7) and air compressor elbow (Figure 1, Item 2), and slide nuts to center of tube.
2.
Remove and discard two bushings from tube (Figure 1, Item 6).
3.
Remove water pump adapter (Figure 1, Item 7) and air compressor elbow (Figure 1, Item 2) from engine oil
cooler (Figure 1, Item 1) and air compressor (Figure 1, Item 3).
2
M0123DAA
3
4
5
5
6
4
1
7
Figure 1.
Supply Tube Removal.
END OF TASK
RETURN TUBE REMOVAL
1.
Loosen flare nut (Figure 2, Item 9) and disconnect coolant return tube (Figure 2, Item 5) from engine oil cooler
elbow (Figure 2, Item 11).
2.
Remove nut (Figure 2, Item 6), lockwasher (Figure 2, Item 7), washer (Figure 2, Item 8), screw
(Figure
2,
Item
1), washer (Figure 2, Item 2), and coolant return tube clamp (Figure 2, Item 3) from bracket
(Figure
2,
Item
4). Discard lockwasher.
3.
Loosen flare nut (Figure 2, Item 13) and remove coolant return tube (Figure 2, Item 5) from elbow
(Figure
2,
Item
15).
4.
Remove bushings (Figure 2, Items 10 and 14) from coolant return tube (Figure 2, Item 5). Discard bushings.
TM 9-2320-272-23-2
0284
0284-2
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