GEDA
®
MINI 60 S / MAXI 120 S / MAXI 150 S Maintenance - Checking - Cleaning
BL068 GB Edition 03/2015 67 / 90 Assembly and Operating Manual
8.3 Wear and Function Checks
8.3.1 Motor / Motor brake
Carry out the maintenance and servicing tasks as follows.
Motor:
• Cleaning
• Check the ball bearing, replace as necessary (if conspicuous noises
when operating)
• Replace the shaft seal (if grease escapes)
• Clear the cooling air passage
Motor brake:
• Measure the thickness of the brake lining, replace if necessary
• Measure operating clearance and adjust
• Armature disk
• Dog/interlocking
Test the braking distance:
Load the non-twisting device via the load hook with 110 % of the
permitted load capacity of the winch.
Move up approx. 4 m [13 ft], subsequently move down.
Stop the test load from a greater speed (2nd speed level) (press the
EMERGENCY STOP button).
Overrun of the motor brake must not exceed 100 mm (4 in).
Adjust the motor brake
The working air gap is measured in the braking position between the
anchor plate and the magnetic body. It increases due to wear. If the
wear of the brake pad is advanced to the point where the maximum
possible air gap of 0.5 mm is reached, the brake must be readjusted
because safe brake release can no longer be guaranteed. This is evi-
dent by dwindling brake power or longer braking distance. The mini-
mum thickness of the pad is 6.5 mm, and the working air gap should be
set at 0.2 mm.
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