CORRECTIVE ACTION Continued
Test for faulty or improperly adjusted relief valve within system selector valve. Install pressure gage in
system selector valve gage port. With APU operating, and APU emergency winch control valve lever
placed in CLOSED position, place system selector valve lever in AUX position, and adjust relief valve.
Adjust relief pressure to 14501550 psi (999810,687 kPa). For location of valve gage port and
Replace system selector valve if pressure cannot be adjusted to 14501550 psi (999810,687 kPa)
Inspect for faulty check valve in hoses, nos. 4B and 6B (TM 9-2350-256-20).
Perform following tests using main hydraulic system (step 7 only).
Test hoist winch combination control valve and control valve. Refer to first SYMPTOM, steps 10
and 11, in HOIST WINCH CIRCUIT (MAIN HYDRAULIC SYSTEM) TROUBLESHOOTING
END OF WORK PACKAGE