TM 10-3930-675-24-2
HYDRAULIC SYSTEM TEST POINT PROCEDURES - CONTINUED
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TEST POINT NO. 3: STEERING SYSTEM MAIN VALVE
NOTE
Test point no. 3 provides a means to check the steering system main valve operating pressure.
1.
Open steering accumulator drain valve (3) slowly until pressure is drained completely. Close valve.
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2.
Connect hydraulic test gage with adapter to test point no. 3.
3.
Start engine. Pressure will be 260 psi (18 bar). After 5 seconds, pressure will jump to 3,045 psi (210 bar).
4.
Shut engine off. Open steering accumulator drain valve (3) slowly until pressure is drained completely. Close valve.
5.
Disconnect hydraulic test gage from test point no. 3.
TEST POINT NO. 4: BRAKE CIRCUIT NO. 2
NOTE
1.
Chock vehicle wheels.
2.
Release parking brake.
3.
Connect hydraulic test gage to test point no. 4.
4.
Start engine. Apply parking brake. Pressure will jump to 1,100 psi (75 bar).
5.
Press brake pedal. Pressure will jump to 1,450 psi (100 bar).
6.
Release brake pedal. Release parking brake.
7.
Disconnect hydraulic test gage from test point no. 4.
8.
Apply parking brake.
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