TM-9-2320-285-24-2
TRUCK TRACTOR, YARD TYPE, 43,500 LB GVW, DED, 4X2, ARMY MODEL M878A1
TECHNICAL MANUAL; ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
OCTOBER 1985
TM-9-2320-285-24-2 - Page 598 of 698
TM 9-2320-285-24-2
4-4.
TRANSMISSION (CONT)
j. Control Valve Assembly (cont).
STEP
LOCATION
ITEM
ACTION
REMARKS
REASSEMBLY (cont)
26
inner spring
(cont)
(41), and
valve stop
(40)
27
Outer
a
Trimmer cover
Position
Press against springs
springs
(30)
(33, 36,
b
Eight capscrews
Install
Tighten to 9-11 pounds foot
39, and 42)
(31)
28
Bore K
a
3-4 relay valve
Install
(54)
b
3-4 relay valve
Position
spring (53)
and valve
stop (51)
c
Retainer pin
Install
Depress valve stop (51)
(52)
29
Bore L
a
2-3 relay valve
Install
Larger end first
(57)
b
2-3 relay valve
Position
spring (56)
and spacer
(55)
c
Retainer pin
Install
Depress spacer (55)
(52)
30
Modulator
a
Modulator valve
Install
Smaller end first
valve body
actuator
(8), bore
pin (6)
M
b
Modulator valve
Install
Longer end first
(23)
c
Modulator valve
Position
spring (22),
washer (21),
valve stop
pin (20), and
spring adjust-
ing ring (15)
d
Retainer pin
Install
Depress spring adjusting ring
(10)
(15) Retainer pin must go
through valve stop pin (20)
and retain spring adjusting
ring (15)
4-117
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