TM 10-3930-675-10-1
OPERATION UNDER UNUSUAL CONDITIONS - CONTINUED
0006 00
EMERGENCY LOWERING OF THE BOOM
0006 00
NOTE
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).
1.
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.
LOCKING VALVE
350-1368
VALVE
JAMNUT
SCREW
2.
Lower Boom (Extended or Loaded With a Container).
a. Open valve located under vehicle, on right frame, in front of right-rear tire.
OPEN
VALVE
0006 00-4