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 TM 9-2320-285-24-2
3-42.
FIFTH WHEEL HYDRAULIC SYSTEM MAINTENANCE (CONT) I
c. Hydraulic Control Valve (cont).
STEP
LOCATION
ITEM
ACTION
REMARKS
ADJUSTMENT (cont)
12
d.
Fifth wheel
Pull back
To raise fifth wheel
(cont)
control lever
NOTE
Use assistants for the following steps.
13
Fifth wheel
3000 psi pres-
Watch
While performing step 14
boom
sure gage
below
14
Hydraulic
a.
Adjusting screw
Turn
Adjust screw for 2000 psi
control
(26)
indication on pressure gage
valve
b.
Jam nut (25)
Tighten
When pressure gage indicates
2000 psi
15
Tractor
a.
Fifth wheel
Push forward
To lower fifth wheel fully
cab
control lever
b.
Engine
Turn off
16
Fifth wheel
a.
3000 psi pres-
Remove
From tee (39)
boom
sure gage
b.
Pipe plug (38)
Install
In tee (39)
c.
Boom platform
Install
Para 2-63e
17
Rear
Rear platform
Install
Para 2-65c
platform
3-442
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