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 TM 9-2320-285-24-2
13-17. TRANSMISSION MAINTENANCE (CONT)
a. Testing (cont).
(2) Hydraulic Pressure Test (cont).
STEP
LOCATION
ITEM
ACTION
REMARKS
TESTING
WARNING
Personal injury and property damage can result if vehicle is allowed to move during the
hydraulic pressure test. Be sure tractor frame is secured to an immovable object, service
brakes are applied, and all wheels are chocked before accelerating engine. Do not permit
anyone to stand in front of tractor during hydraulic pressure test.
1
Transmis-
a
Main pressure
Remove
sion, left
tap (1) plug
side
b
Fitting
Install
c
Pressure gage
Install
2
Tractor cab
Engine
Start
3
Tractor cab
a
Gear shift
Position
Place gear shift lever in
lever
drive (2-5) position
b
Engine
Accelerate
Accelerate engine to 600 rpm
4
Transmis-
Pressure gage
Observe
Gage should indicate 125 psi
sion, left
minimum. Record actual
side
reading on note pad
5
Tractor cab
Engine
Accelerate
Accelerate engine to 1200 rpi
6
Transmis-
Pressure gage
Observe
Gage should indicate within
sion, left
165-190 psi range Record
side
actual reading on note pad
7
Tractor cab
a
Engine
Decelerate
b
Gear shift
Position
Place gear shift lever in
neutral (N) position
c
Engine
Stop
8
Transmis-
a
Pressure gage
Remove
sion, left
and fitting
side
b
Main pressure
Install
tap (1) plug
3-101
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