TM 9-2320-392-10-1
M1083A1 SERIES THEORY OF OPERATION - Continued 0003 00
M1089A1 MATERIAL HANDLING CRANE (MHC), 30K WINCHES, AND UNDERLIFT
ASSEMBLY - Continued
Underlift Assembly. The hydraulic underlift assembly is attached to the rear of the
vehicle and is used for towing a disabled vehicle. Stifflegs are used to keep the M1089A1
stable during recovery operations. The stinger can be extended to position the crossbar
beneath the vehicle being recovered. The crossbar is equipped with adapters which allow
it to tow a wide range of vehicles. Two underlift assembly cylinders control the height of
the crossbar to allow the Operator to lift and tow a disabled vehicle. Underlift assembly
functions are controlled from the WRECKER CONTROL PANEL or from the WRECKER
REMOTE CONTROL.
0003 00-46
