Maber MB500/120-SP, Instruction And Maintenance Manual

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22. ADJUSTMENTS AND REGULATIONS
The MB 500/120 SP RACK AND PINION HOIST does not require any special adjustment
after being delivered. However, if need be, take the following steps to adjust the service
and emergency brakes:
A. Should the machinery not be moving and tend to slip, the service brake needs
adjusting. This operation must be carried out only by the technical support centre
or by a trained and authorised technician:
x
Lower the deck to ground level.
x
Disable the electric power line by using the main power knob door lock (1) on the
control panel.
x
Open the motor crankcase (2).
x
By screw the motor brake ring nut (4) with a wrench clockwise about 180° so as to
increase pressure of the springs (5) on the brake disc (6) . Conduct an unloaded
operation test and a fully loaded operation test.
x
Refit the motor crankcase and enable the main power knob of the control panel.
B. Adjusting the emergency brake (fall stopper):
See page 29 - Non-Routine Maintenance.
!!!CAUTION!!!
After completing the adjustments carry out some checks on the completed
operation, first unloaded, subsequently with a 150 kg load and then 300 kg load.
Enable machine operation only after making sure it brakes regularly enough in all
operating conditions.
These jobs must be carried out by the technical support centre or by trained,
skilled and authorised personnel.
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