1. With the engine ignition key in the "off" position, check that free action (no self-
centering) occurs on the boom lowering pedal, the boom telescope lever- extended
direction, and the winch lever (S) - raising direction.
2.
With the engine ignition key in the "on" position, check to be sure that these controls
latch (remain in the neutral position) and provide a normal centering action.
NOTE:
This may require lowering the hook block away from the trip mechanism at
the boom head to enable the "latching" of controls.
THROTTLE CONTROL
The throttle control consists of cables and clevis ends. Adjustment is dependent on cable
travel and the adjusted length of the clevis rods. Adjustment is not required as long as the
full range of engine rpm is available in response to control input.
REAR AXLE DISENGAGE
No adjustments are possible. In the event of malfunction, check for electrical continuity and
air supply.
T300-1_T500-1_T780
Maintenance
368 P/N 12261-683
REVISED: January 2015
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