TM 10-3930-675-24-2
BRAKE SYSTEM CHARGING VALVE PRESSURE ADJUSTMENT - CONTINUED
0129 00
ADJUSTMENT, BRAKE CIRCUIT NO. 1 - CONTINUED
WARNING
While adjusting brake charging valve, DO NOT remove adjusting screw from charging valve assem-
bly. The system is under pressure and failure to follow this warning may cause serious injury to per-
sonnel.
5.
Loosen adjusting screw jamnut (2) and slowly turn adjusting screw (1) until test gage indicates 1,956 to 2,538 psi (135
to 175 bar). Secure adjusting screw by tightening jamnut.
BRAKE CHARGING VALVE
(MOUNTED UNDER PLATE)
2
1
6.
Shut down engine.
7.
Relieve brake system hydraulic pressure by opening brake system evacuation valves (WP 0164 00).
8.
Disconnect test gage from hydraulic test point no. 1 (WP 0188 00).
9.
Close brake system evacuation valves (WP 0164 00).
ADJUSTMENT, BRAKE CIRCUIT NO. 2
1.
Relieve brake system hydraulic pressure by opening evacuation valves, then return valves to CLOSED position (WP
2.
Connect hydraulic pressure test gage to hydraulic test point no. 2 (WP 0188 00).
3.
Start engine (TM 10-3930-675-10).
4.
Test gage indicator will jump to pre-charged accumulator pressure of 1,305 (90 bar), then slowly increase to system
pressure. If system pressure reaches 2,900 psi (200 bar), OPEN evacuation valves (WP 0188 00).
WARNING
While adjusting brake charging valve, DO NOT remove adjusting screw from charging valve assem-
bly. The system is under pressure and failure to follow this warning may cause serious injury to per-
sonnel.
5.
Loosen adjusting screw jamnut (2) and slowly turn adjusting screw (1) until test gage indicates 1,956 to 2,538 psi (135
to 175 bar). Secure adjusting screw by tightening jamnut.
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