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TM-9-2320-366-10-1 MTV Operator Manual M1083 Series - Volume 1 Download

Page 126 of 802

TM 9-2320-366-10-1 1-22. M1089 MATERIAL HANDLING CRANE (MHC), 30K WINCHES, AND UNDERLIFT ASSEMBLY (CONT) Figure 1-27. Material Handling Crane (MHC), 30K Winches, and Underlift Assembly (Cont) d. Hydraulic System. All of the hydraulics on the M1089 are connected to a common power source and supply system. The M1089 is provided with a hydraulic tank (13) with a capacity of 74 gallons (280 L) of fluid. Hydraulic pressure for the MHC is supplied by a three stage hydraulic pump (14) attached to the rear of the PTO (15). The hydraulic cylinders on the MHC contain valves which stop the movement of the cylinder in case of sudden hydraulic pressure loss. A manually operated back-up hydraulic pump (16) allows you to lower any load to the ground and stow the MHC if the three stage hydraulic pump fails. 1-74