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2.4.1 Electric emergency descend.
The emergency descend procedure can be done from the basket only if the elctric system of the
machine is in good order; do the following operations:
-
keep the manual “selector 1” on the control panel pushed
-
operate the usual arm descend controls until you reach the desired height;
- leave the manual “selector 1” on the control panel pushed
Since the descend is due to the force of gravity, it is of course not possible to obtain the swing
movement of the platform and the movements of the telescopic arm; then the basket
sinks
vertically
at a
distance from the rotation centre, that depends on the configuration the machine had when the
emergency situation happened.
The basket rotation can be operated by the operator who is on the ground through the slew ring
screw, opposite to the hydraulic motor. Anyway, in order to move the machine, you need to move
the rotation lever on the valve-block either in the basket or on the ground.
In the model 1470 when you are using the emergency descend, the jib cylinder cannot be activated;
this means that when the arm is completely down, the basket is at about 1,8 m height. In this case,
in order to help the person in the basket, it is necessary to use an external tool (for example a
ladder).
2.4.2 Emergency descend operated
from the ground
when the machine is perfectly working.
This emergency descend is to be used only in case of:
-
illness of the operator inside the basket.
The only reason to allow the use of the emergency descend from the ground is to help the operator/s
bringing the basket down, near the ground level; any other use is forbidden.
To
operate
the emergency descend in the above mentioned conditions, do as follows:
a)
Move the deviator for the valve-block selection, from the valve-block in the basket to the
valve-block on the undecarriage.
Summary of Contents for GOLD LIFT 1470
Page 1: ...Technical Course GOLD LIFT 1470 ...
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