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 915 of 987
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
INSTALLATION (cont)
15
Hydraulic
a.
Elbow (6)
Install
In hydraulic pump
pump
b.
Hose assembly
a.
Route
(8)
b.
Connect
To elbow (6)
c.
Elbow (6)
Tighten nut
d.
Elbow (5)
Install
In hydraulic pump
e.
Hose assembly
a.
Route
(4)
b.
Connect
To elbow (5)
c.
Tighten
16
Control
a.
Three elbows
a.
Install
In hydraulic control valve
valve
(1 thru 3)
b.
Tighten
Tighten O-ring locknuts
nuts
b.
Hose assembly
a.
Route
(7)
b.
Connect
To hydraulic control valve
elbow
c.
Hydraulic
Tighten nut
control valve
elbow
d.
Hose assembly
a.
Route
(22)
b.
Connect
To elbow (3)
e.
Elbow (3)
Tighten nut
f.
Hose assembly
a.
Route
(21)
b.
Connect
g.
Elbow (2)
Tighten nut
h.
Hose assembly
a.
Route
(4)
b.
Connect
i.
Elbow (1)
Tighten nut
17
Left hand
Hydraulic
Fill
Para 2-78c
frame rail
reservoir
WARNING
Stand away from top of hydraulic reservoir when operating bleed valve.
Hot oil may be
expelled from filler
cap.
If you are burned by hot oil, obtain medical aid
immediately.
2-892
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