TM-9-2320-272-23-4
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 4 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-4 - Page 1181 of 1393
REMOVAL
WARNING
Do not disconnect air lines or hoses before draining air reservoirs. Small parts under pressure
may shoot out with high velocity. Failure to comply may result in injury or death to personnel.
CAUTION
Cap or plug all openings immediately after disconnecting lines or hoses to prevent
contamination. Failure to do so may result in system damage or injury to personnel.
1.
Remove locknut (Figure 1, Item 10), screw (Figure 1, Item 11), and wiper blade (Figure 1, Item 12) from wiper
arm (Figure 1, Item 7). Discard locknut.
NOTE
Mark position of wiper arm for installation.
2.
Remove nut (Figure 1, Item 9), lockwasher (Figure 1, Item 8), and wiper arm (Figure 1, Item 7) from wiper
motor shaft (Figure 1, Item 1). Discard lockwasher.
3.
Remove knurled drive (Figure 1, Item 6) from wiper motor shaft (Figure 1, Item 1).
4.
Remove nut (Figure 1, Item 5), washer (Figure 1, Item 4), and leather washer (Figure 1, Item 3) from wiper
motor shaft (Figure 1, Item 13). Discard leather washer.
5.
Remove hose clamps (Figure 1, Item 14) and (Figure 1, Item 17) and hoses (Figure 1, Items 15 and 16) from
adapter fittings (Figure 1, Item 23) and (Figure 1, Item 21).
6.
Remove two locknuts (Figure 1, Item 20), screws (Figure 1, Item 18), wiper motor (Figure 1, Item 22), and
wiper motor bracket (Figure 1, Item 19) from windshield frame (Figure 1, Item 2). Discard locknuts.
7.
Remove two screws (Figure 1, Item 26), bracket (Figure 1, Item 19), and two spacers (Figure 1, Item 25) from
wiper motor (Figure 1, Item 22).
8.
Remove adapter fittings (Figure 1, Item 21) and (Figure 1, Item 23) from wiper motor (Figure 1, Item 22).
9.
Remove muffler (Figure 1, Item 24) from wiper motor (Figure 1, Item 22).
TM 9-2320-272-23-4
0736
0736-2
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