AZ motor
Edition 4
Instructions for bearings replacement
24
RISK OF INJURY BECAUSE OF FLYING OBJECTS.
When removing retaining ring secure it e.g. with your hand because
it can fly away since it is compressed. Safety glasses must be used.
Pay attention to the screw and make sure that it does not fall inside
of the motor.
MOTORS AZ 108, AZ 150, AZ 220
Unscrew the screw (pos. 13) from the shaft and remove the press ring (pos. 12). Use the
retaining ring pliers and carefully remove retaining ring (pos. 11). Then remove shim washer
(pos. 10) and wave spring washer (pos. 9). See picture B for additional information.
Removed press ring will not be used again on motors 748.3.xxx (motor size AZ 150) and
motors 749.3.xxx (motor size AZ 220). It will be changed with new one according to table 4
at page 8 of these instructions. Motors 747.3.xxx (motor size AZ 108) will use the existing
press ring during motor assembling back.
Removed wave spring washer must be replaced with new one according to table 5 at pages 8
and 9 of these instructions because during motor disassembly there is a risk of its deformation
and consequently motor bearings preload will not be sufficient.
MOTORS AZ 84
Unscrew the M6 screw (pos. 12) from the shaft and remove bearing fixation washer (pos. 11).
Then remove distance ring (pos. 10) and wave spring washer (pos. 9). See picture B for
additional information.
Removed wave spring washer must be replaced with new one according to table 5 at pages 8
and 9 of these instructions because during motor disassembly there is a risk of its deformation
and consequently motor bearings preload will not be sufficient.
PICTURE A:
SHAFT
HOLDING WITH PLIERS