Domel AZ 108, Инструкция по эксплуатации, Страница: 27 / 50

AZ motor Edition 4
Instructions for bearings replacement 27
By removing stator support with stator you also remove rear
bearing from bearing seat on shaft. Sometimes rear bearing does not
leave bearing seat on shaft easily so you need to use puller tool to
easier disassembling. Pay attention to not to lift the fan housing
with motor because it will fall down when rear bearing will release
from bearing seat on shaft.
If rear bearing does not leave shaft please use other tools such as
three handed puller. Place the hands of the puller in the gap
between the stator support and housing and pull the stator support
with stator up. Be careful not to damage the shaft, stator wires,
bearing seat in stator support or any other part. For additional
information see picture B.
When stator support with stator is released put it on a clean, soft
and non-abrasive surface to prevent stator winding to any kind of
damage.
RISK OF INJURY.
For heavier motors (e.g. AZ 220) you should use lift because parts
are heavy and magnetic force, holding the stator and rotor, is
strong, so you can hurt yourself when trying to lift by hands.
Increase the gap between the stator support and housing with e.g. a small screwdriver.
Disassemble the stator support with stator (pos. 1) from the rest of the motor. For this purpose
use designed threaded holes in stator support. On motors AZ 108, AZ 150 in AZ 220 stator
support has threaded holes in two of four holes (holes for bonding screws). In these two
threads eye bolts can be fitted and by these two eye bolts we can pull up the stator support
with stator.
On motors AZ 84 use three threaded M6 holes designed for stator support cover (pos.14)
fixation. Fit eye bolts in all holes and pull up the stator support with stator. Make sure that
connector insulation (pos. 20) stays on PCB.
For additional information see picture C.
PICTURE A:
GAP
GAP
1