POWER STEERING SYSTEM

FAILURE SYMPTOM LIST UTILITY HYDRAULIC SYSTEM

INTEGRATED LOWER CONTROL ACTUATOR (ILCA)

TM-55-1520-240-T-1 CH-47D Heilcopter Manual
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TM 55-1520-240-T FAILURE SYMPTOM LIST (Continued) POWER STEERING SYSTEM S Y M P T O M TASK S Y M P T O M TASK AFT RIGHT WHEEL DOES NOT MOVE WHEN AFT RIGHT WHEEL DOES NOT RETURN TO STEERING CONTROL KNOB IS ROTATED IN NEUTRAL 7-5.4 EITHER DIRECTION 7-5.4 POWER STEERING CAUTION LIGHT DOES NOT COME ON 7-5.4 BRAKE PRESSURE BLEEDS DOWN WITHIN 8 HOURS WITH PARKING BRAKE ON 7-6.3 BRAKES WILL NOT RELEASE 7-6.3 ONE OR MORE WHEEL BRAKES WILL NOT RELEASE, WHEELS DO NOT TURN FREELY 7-6.3 W H E E L B R A K E S S Y S T EM PARK BRAKE ON CAUTION LIGHT DOES NOT COME ON 7-6.3 PARK BRAKE ON CAUTION LIGHT WILL NOT GO OUT 7-6.3 PARKING BRAKE HANDLE WILL NOT LOCK 7-6.3 E N G I N E H Y D R A U L I C S T A R T I N G S Y S T E M NOTE: REFER TO TASK 15-5 A P U H Y D R A U L I C S T A R T I N G S Y S T E M NOTE : REFER TO TASK 15-4 SYMPTOM TASK POWER STEERING CAUTION LIGHT WILL NOT GO OUT 7-5.4 POWER STEERING/SWIVEL LOCK MODULE DOES NOT MAINTAIN PRESSURE WITH APU OFF 7-5.4 RIGHT OR LEFT BRAKES DO NOT COME ON WHEN COPILOT’S BRAKE PEDALS ARE PRESSED 7-6.3 RIGHT OR LEFT BRAKES DO NOT COME ON WHEN PILOT’S BRAKE PEDALS ARE PRESSED 7-6.3 UNABLE TO APPLY BRAKES THREE TIMES ON BRAKE ACCUMULATOR PRESSURE 7-6.3 GO TO NEXT PAGE Change 6 7-2.3

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