TM 9-2320-279-20-3
Change 5
18-4.1/(18-4.2 blank)
M978 Tanker Maintenance Instructions (Cont)
NOTE
·
Do step (4) for right windshield
wiper motor only.
·
Not all vehicles have nut (10
screw (12.1), or washer (13).
(4)
Remove nuts (10 and 10.1),
lockwasher (11),
screws (12 and 12.1), and
washer (13) to remove
defroster tube guard (14).
NOTE
·
Tag and mark hoses before
removal. There are different
markings on the Model B
motor. PK is the same as Park
and IN is the same as Run.
·
There are two kinds of wiper
motors. Model A has two hoses
on the right side. Model B has
hoses on the bottom. Both are
removed the same way. If a
Model A motor must be
replaced with a Model B motor,
then the control valve must be
changed also. Refer to
TM 9-2320-279-24P for proper
identification of parts.
·
Air hoses for Model A may not
be long enough for Model B. If
hoses are not long enough,
refer to Appendix F and
TM 9-2320-279-24P for proper
identification of parts.
(5)
Disconnect airhoses (15 and 16) and rubber hose (17) from motor (18).
(6)
Remove motor (18).
(7)
Mark location of three fittings (19) and remove three fittings (19) from motor (18).
