TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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TM 9-2320-280-34 17-32. TRANSMISSION OIL PRESSURE TESTS (3L80) (Cont’d) 13. Compare oil pressure test results to information in table 17-9. If malfunction is still unknown, consult troubleshooting, table 2-1. Table 17-9. Oil Pressure Diagnosis Test Conditions Drive Drive* Check 1,000 rpm 2,000 rpm Transmissio n Neutral Drive Drive Low 2 Low 1 Reverse Kick- down closed for 1,000 rpm idle 1,000 rpm 1,000 rpm 1,000 rpm 1,000 rpm switch activated throttle Malfunctions in Detent Normal High High Normal Normal Normal Normal High System High High High Normal Normal High ** ** Modulator System Test Direct Clutch Results Normal Normal Normal Normal Normal Low Normal Normal Oil Feed Forward Normal Low to Low to Low to Low to Normal Low to Low to Clutch Oil Normal Normal Normal Normal Normal Normal Feed Detent Normal Normal Normal Normal Normal Normal Low Normal System * Modulator cable and linkage held in full throttle position. ** Oil pressure not important under test condition indicated. 14. Remove oil pressure gauge from transmission (1) and install pipe plug (3) in line pressure port (2). 17-152