Clear all personnel from top and rear areas of vehicles before raising or lowering the boom.
Under no circumstances should any hydraulic hoses/lines be disconnected for maintenance purposes
unless the boom as in the fully forward position or blocked by boom safety stands.
To avoid possibility of injury to personnel, if the hoisting boom cannot be fully raised (roof of building
too low, etc.), the use of the safety boom stands is mandatory. After maintenance is performed, when the
boom is to be lowered to the stowed position, clear all personnel for the top and rear area of the vehicle.
Always raise the hoisting boom assembly to the fully forward position unless it is not permissible due
to an obstruction.
Be sure the AUXILIARY GENERATOR switch on the slaving vehicle is in the OFF position.
Ensure the APU emergency winch operation valve is in the normal operation mode on the inoperable
The operation (RAISE/LOWER) of the hoisting boom assembly will be completed by using only the
controls in the inoperable vehicle, which is being hydraulically driven by the APU of the slaving vehicle.
Start APU on slaving vehicle (refer to TM 9-2350-256-10).
Shift SYSTEM SELECTOR control lever to auxiliary position and operate hoisting boom controls in inoperable vehicle
(refer to TM 9-2350-256-10).