TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 2 Download
Page 618 of 953
5-21. TRANSMISSION ROAD TEST (Cont'd) 7. Position shift lever “2” and with the vehicle speed at approximately 25 mph (40 km), close the throttle and move lever to “1”. Transmission should downshift to 1st gear. An increase in engine RPM and engine braking effect should be noticed. 8. Position shift lever in “R” and check for reverse operation. 9. Hard shifting may indicate an underfilled or clogged system. TM 9-2320-280-20-2 Change 2 5-47 Section II. TRANSFER CASE MAINTENANCE 5-22. TRANSFER CASE MAINTENANCE TASK SUMMARY TASK PAGE PARA. NO. PROCEDURES 5-23. Transfer Case Shift Rod Maintenance 5-48 5-24. Speedometer Driven Gear Maintenance 5-50 5-25. Transfer Case Vent Line Replacement 5-52 5-26. Transfer Case Oil Seals Replacement 5-53