OPERATION UNDER UNUSUAL CONDITIONS - CONTINUED
EMERGENCY LOWERING OF THE BOOM
Use the following procedures to lower the boom if the engine fails during RTCH operation.
Boom movement during emergency lowering will be slow. This is normal.
Lower Boom (Retracted and Unloaded).
a. Loosen emergency lowering valve jamnuts on both left and right lift cylinder locking valves.
b. Turn both left and right emergency lowering valve screws counterclockwise three turns.
c. Turn left emergency lowering valve screw an additional three counterclockwise turns.
d. Turn right emergency lowering valve screw an additional three counterclockwise turns.
e. When boom is fully lowered, close both left and right emergency lowering valve screws by turning them clockwise
until tight. Tighten both left and right jamnuts.
Lower Boom (Extended or Loaded With a Container).
a. Open valve located under vehicle, on right frame, in front of right-rear tire.