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 TM 9-2320-285-24-1
2-78. FIFTH WHEEL HYDRAULIC SYSTEM MAINTENANCE (CONT)
b. Hydraulic Filter and Lines and Fittings (cont).
(2) Lines and Fittings (cont).
STEP
LOCATION
ITEM
ACTION
REMARKS
REMOVAL (cont)
1
g. Hydraulic
Loosen nut
(cont)
control valve
elbow
h. Hose assembly
Disconnect
From elbow
(7)
fitting
i. Three elbows
a. Loosen nut
Loosen O-ring locknut
(1 thru 3)
b. Remove
From hydraulic control valve
2
Hydraulic
a. Hose assembly
a. Disconnect
From elbow (5)
pump
(4)
fitting
b. Remove
From tractor
b. Elbow (5)
Remove
From hydraulic pump
c. Elbow (6)
Loosen nut
d. Hose assembly
Disconnect
From elbow (6)
(8)
fitting
e. Elbow (6)
Remove
From hydraulic pump
3
Left hand
a. Hose assembly
a. Disconnect
From return line filter head
frame rail
(7)
fitting
b. Remove
From tractor
b. Hose assembly
a. Loosen nut
(8)
b. Disconnect
From suction line filter head
fitting
c. Remove
From tractor
4
Hydraulic
a. Suction line
Remove
From nipple (19); para
reservoir
filter head
2-78b(1)
b. Hose assembly
a. Loosen nut
(23)
b. Disconnect
From adapter (12)
fitting
c. Adapter (12)
Remove
From bleed valve (14)
d. Handle and
Remove
From bleed valve (14)
screw (13)
e. Bleed valve
Remove
From nipple (15)
(14)
f. Nipple (15),
Remove
elbow (16),
and two
bushings
(17 and 18)
g. Nipple (19)
Remove
From tee (20)
h. Tee (20)
Remove
From hydraulic reservoir
2-885
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