TM 5-3895-373-34
2.51
ADJUST UNLOADING AND RELIEF VALVES - Continued.
A.
CHECK Continued.
2.
CHECK
ON-MACHINE
UNLOADING
AND
RELIEF VALVES.
a. With paving machine shut down and
load removed from applicable hydraulic
circuit, set up paving machine and test
equipment for relief pressure check.
Equipment
setup
procedures
and
required relief pressure settings for each
valve are referenced in the following
table. Refer to TM 9-4940-468-14 for
test equipment setup.
PRESSURE SETTING
VALVE TO BE CHECKED
SETUP AND TEST PROCEDURES
PSI (kPa)
Stack Relief Valve
Para. 2.11, Malfunction 1, Step 2
2500 (17 238)
Track Tensioning Relief Valve
Para. 2.7, Malfunction 1, Step 2
1800 (12 411)
Track Tensioning Unloading Valve
Para. 2.7, Malfunction 1, Step 2
900 (6 206)
Vibration Relief Valve
Para. 2.13, Malfunction 1, Step 1
2000 (13 790)
Auger/Conveyor Relief Valves
Para. 2.12, Malfunction 1, Step 2
2750 (18 961)
Tow Point Control Valves
Para. 2.9, Malfunction 1, Step 2
1500 (10 343)
b.
Start paving machine and set throttle control
switch to MAX position per TM 5-3895-373-10.
c.
Measure relief pressure and/or flow of valve per
test procedures referenced in table. If measured
relief pressure is less than or greater than relief
pressure cited in table, adjust relief pressure
setting per applicable ADJUST procedure. If
valve adjustment does not achieve cited relief
pressure setting, replace valve.
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