E. Actuator control
ļ Extension actuator:
WARNING; DO NOT USE THIS METHOD WITHOUT MANUFACTURERāS AUTHORIZATION.
If all of the hydraulic power sources are out of order, the telescope can be retracted using the
actuator control screws.
The telescope will retract as soon as the hydraulic oil has passed through the control system. The
more vertical the telescope, the more effective this maneuver will be, because of the effect of
gravity.
The rate of descent increases according to the releasing of the screw.
To retract the telescopic boom, detach the locknut with a 17mm open-end wrench, turning the
screw by 1/4 turns (counterclockwise) using a 5mm Allen wrench. Then push on the
āRETRACTIONā distributor (See Chapter VI D).
Release the distributor to stop the movement.
AFTER USING THIS PROCEDURE, IT IS ESSENTIAL TO HAVE THE ACTUATOR
CONTROLS ADJUSTED BY A QUALIFIED OPERATOR BEFORE USING THE ELEVATOR
AGAIN.
Make sure that there are no obstacles in the way when the lift is returning.
Lock nut
Driving screw
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