TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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TM 9-2320-280-34 17.8. DIRECT CLUTCH AND INTERMEDIATE SPRAG REPAIR(3L80)(Cont’d) Air pressure must not exceed 50 psi (345 kPa) when air checking clutch piston, or injury to personnel or damage to equipment may result. NOTE • If air is applied through reverse passage (right oil feed hole), it will escape from direct clutch passage (left oil feed hole). This is considered normal. • Clutch piston must move up and down freely when air pressure is applied. 17. Apply air pressure through left oil feed hole (22) to check operation of clutch piston (5). 17-29