TM 10-3930-659-34 5-12.  TRANSMISSION CLUTCH PACKS AND IDLER GEAR MAINTENANCE (Con’t). 14. Repeat steps 2 through 5 for third/fourth gear axle. WARNING Use extreme caution when handling heavy parts.  Lifting device is required when parts weigh over 50 lb (23 kg) for a single person lift, over 100 lb (45 kg) for a two person lift, and over 150 lb (68 kg) for a three or more person lift.  Keep clear of heavy parts supported only by lifting device.  Failure to follow this warning may cause serious injury or death to personnel. NOTE • Clutch pack weighs approximately 75 lb (34 kg). • Lift clutch pack straight out of transmission assembly so that loose roller bearings are kept intact for individual inspection. 15. Using suitable lifting device, remove third/fourth gear clutch pack (18) from transmission assembly (1). TA708274 5-93