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1-18.   M1084/M1086 MATERIAL HANDLING CRANE (MHC)
M1089 MATERIAL HANDLING CRANE (MHC), 30K WINCHES, AND UNDERLIFT

TM-9-2320-366-34-1 M1078 Series 2 1/2-Ton 4x4 Light Medium Tactical Vehicles (LMTV) Manual
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TM 9-2320-366-34-1 1-18.   M1084/M1086 MATERIAL HANDLING CRANE (MHC) (CONT) Figure 1-28. Material Handling Crane (MHC) Control Station and REMOTE CONTROL UNIT b. MHC Control Station. All MHC functions can be controlled by the operator from the control station (1, Figure 1-28). A lever controlled valve (2) is provided for each control function. All control valves are spring-loaded and will return to the  center,  or  neutral,  position  when  they  are  released.  The  control  valves  are  proportionately  variable.  A  small movement  from  the  neutral  position  results  in  a  small  change  in  the  function  which  that  valve  controls.  A  larger movement from the neutral position results in a faster change. The function of each control lever is identified on the end of the control knob (3). c. MHC REMOTE CONTROL.  The MHC REMOTE CONTROL UNIT (4) permits operation of the MHC from either side of  the  vehicle.  This  feature  allows  the  operator  to  keep  the  load  in  sight  at  all  times.  A  remote  control  switch  (5) activates power to the remote control connector (6). The REMOTE CONTROL UNIT is attached to the MHC by an electrical cable. When the REMOTE CONTROL UNIT is active, solenoids on the control valves respond to input from the REMOTE CONTROL UNIT.   The levers on the REMOTE CONTROL UNIT are proportionately variable. A small change in lever position results in a small change in the function controlled by that lever. A larger change in lever position results in a faster change in function. The levers on the REMOTE CONTROL UNIT are also spring-loaded and will  return  to  the  neutral  position  when  released.  The  REMOTE  CONTROL  UNIT  can  be  used  to  operate  HOIST up/down, BOOM up/down, TELESCOPE in/out, and SWING clockwise/counterclockwise. 1-36







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