TM 9--2350--292--20--10177 00--4LOW BRAKE PRESSURE WARNING LIGHT COMES ON AND WARNINGHORN SOUNDS -- CONTINUED0177 00CONTINUED FROM STEP GHDid test gauge assembly read 500 psi (old configu-ration) or 550 psi (new configuration with brakemodulation) or greater?noyes1. Remove plugs from hoses and reconnect hosesto brake modulating valve ports P and T (WP0360 00, WP 0361 00, or WP 0362 00).2. Disconnect brake manifold supply hose at brakepump and motor (WP 0360 00, WP 0361 00 orWP 0362 00).3. Install 0--4000 psi testing gauge assembly withreducer in brake pump and motor.4. Turn vehicle MASTER switch ON(TM 9--2350--292--10).5. Read test gauge assembly installed on brakepump and motor.6. Turn vehicle MASTER switch OFF(TM 9--2350--292--10).Replace brake manifold(WP 0374 00 or WP0375 00). Verify fault iscorrected.Replace brake pump andmotor (WP 0381 00).Verify fault is corrected.FORWARDEND OF TASK
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