TM-9-2320-285-24-1
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-9-2320-285-24-1 - Page 901 of 987
TM 9-2320-285-24-1
2-78.
FIFTH WHEEL HYDRAULIC SYSTEM MAINTENANCE (CONT)
b.
Hydraulic Filters and Lines and Fittings (cont).
(1) Hydraulic Filters (cont).
STEP
LOCATION
ITEM
ACTION
REMARKS
SERVICING (cont)
2
d.
New suction
a.
Coat
Apply thin film of clean
(cont)
line filter
gasket
hydraulic oil
element
b.
Install
Hand tighten approximately
one turn
e.
New return line
a.
Coat
Apply thin film of clean
filter
gasket
hydraulic oil
element
b.
Install
Hand tighten approximately
one turn
f.
Hydraulic
FillPara 2-78c
reservoir
REMOVAL
3
Cab
5th WHEEL lever
Push forward
To ensure that all pressure
is relieved
4
Left hand
a.
Hydraulic
Drain
Para 2-78c
frame rail
reservoir
b.
Return line
Remove and
Use oil filter tool; rotate
filter
discard
counterclockwise
element
c.
Hose assembly
Disconnect
From return line filter head;
para 2-78b(2)
d.
Suction line
Remove and
Use oil filter tool; rotate
filter
discard
counterclockwise
element
e.
Hose assembly
Disconnect
From suction line filter
head; para 2-78b(2)
f.
Suction line
Unscrew
From nipple
filter head
g.
Hydraulic
Remove
Only if necessary to remove
reservoir
return line filter head;
para 2-78c
5
Hydraulic
Return line filter
Unscrew
From nipple
reservoir
head
2-878
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