TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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TM 9-2320-387-24-l . KNOWN INFO :AN WONT DISENGAGE NIRING OK POSSIBLE PROBLEMS LOW POWER STEERING PRESSURE LEAKS CONTROL VALVE I KNOWN INFO FAN WONT DISENGAGE WIRING OK HOSES ARE LEAK-FREE LOW POWER STEERING PRESSURE CONTROL VALVE KNOWN INFO -AN WON’T DISENGAGE NIRING OK iOSES ARE LEAK-FREE POSSIBLE PROBLEMS LOW POWER STEERING PRESSURE CONTROL VALVE FAN DRIVE LOOK FOR LEAKY HOSES GOING TO AND FROM THE CONTROL VALVE AND FAN DRIVE. ARE ALL OF THE HOSES LEAK-FREE? IS THE PRESSURE IN THE CONTROL VALVE SUPPLY HOSE AT LEAST 90 PSI (62 1 kPa)? DIAGNOSTIC FLOWCHART - r OPTIONS VISUAL REASON FOR QUESTION Leaky hydraulic hoses may prevent the drive from disengaging. TEST OPTIONS 1, STE/lCE-R TEST 50 (Page 2-495) 2. PRESSURE GAUGE REASON FOR QUESTION 90 PSI (621 kPa) is the minimum required to disengage the drive. f tin CONNECT BOTH TIME-DELAY MODULE ELECTRICAL CONNECTORS, JUMPER 458A TO 4588. IS THE PRESSURE IN THE FAN DRIVE HOSE AT LEAST 90 PSI (621 kPa)? f OPTIONS 1. STEXE-R TEST 50 (Page 2-495 2.PRESSUREGAUGE REASON FOR QUESTION Check to see if control valve is open.