TM 5-3805-255-14
0005
LOADING MECHANISM OPERATION CONTINUED
Boom Control Lever
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The boom control lever is the lever at the far right of the operator's seat. It has four positions: RAISE, HOLD,
LOWER, and FLOAT (Figure 6).
CAUTION
The boom assembly, if raised, can be lowered any time the lever is moved to FLOAT or
LOWER position whether the engine is running or not. Always lower the boom to the
ground when it is not in use. Failure to comply could cause damage to equipment.
1. Raise. To raise booms, pull boom control lever back as far as possible. A detent in valve locks lever in this
position. Return HOLD can be done manually or will be done automatically when boom reaches preset
stopping height of boom stop position. Refer to Boom Stop Positioner in this work package for additional
information.
2. Hold. Boom control lever, when not in a detented position, will automatically return to HOLD when released.
Boom will remain stationary in its present position when lever is placed in HOLD position.
3. Lower. Push boom control lever part way forward to lower boom. Lever will automatically return to HOLD when
released.
4. Float. Push boom control lever fully forward for this position. This position is detented so lever must be pulled
back manually to HOLD position. FLOAT position allows bucket to follow contour of ground.
Figure 6. Boom Control Lever Positions.
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