Unilift 542KB Operator's Manual page 19

(Lower Control Station - cont'd)
The rotation system is equipped with two limit switches that prevent more then 350Eof rotation. When the booms are rotated, and
a limit switch is reached, rotation will stop. Simply reverse the control and rotate in the opposite direction to reposition the
bucket.
Both booms have interlocks that limit travel. When a stop is reached, release the control switch to prevent overheating of the
hydraulic oil and damage to the pump. Actuation of a control switch automatically starts the DC motor so the motor runs only
when required, conserving battery life.
Generally, only one pump function should be operated at a time. Rotation (which is a DC motor function) may be operated in
conjunction with any boom function.
To operate the machine from the Lower Control Station:
M Make sure the EMERGENCY STOP button is disengaged. Twist the EMERGENCY STOP button to reset.
M Hold the PLATFORM CONTROL-LOWER CONTROL switch in the "LOWER CONTROL" position.
M Activate a control switch in the chosen direction to move the bucket/boom in the corresponding direction.
M When the control switch is released, the actuator returns to the neutral position and movement stops.
M Movement will also stop when the PLATFORM CONTROL-LOWER CONTROL switch is released.
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Figure 1-5A
Lower Control Station
Figure 1-5A
Lower Control Station
Operation - Page 1 - 5B
Courtesy of Crane.Market