Convotherm OEB Series Service Handbook page 164

Service Handbook OEB/OES/OGB/OGS
Special tools:

Bell-shaped extractor Part-No.: 7015200
(inclusive screw with indentation Part-No. 6015246)
Instructions – Removal of the motor:

Switch unit off (see safety notice above)!

Disconnect the motor connector X13.X from the electrical supply!

Loosen the hexagon screw 7. Then use instead the screw with indentation
from the extractor set and tighten it by hand.

Set the special bell-shaped extractor into the slit of the fan wheel 5.
Attention: the screw with indentation from the extractor set must be in the
shaft, otherwise the thread will be damaged.

Pull off the fan wheel 5 with the special bell-shaped extractor from the motor
spindle. Attention: The fan wheel loosens with a bang!

Remove the 4 hexagon nuts M 8 from the welded bolts (motor flange).

Take the motor together with the motor plate towards the rear and out.
Notice:

The fan wheel can be difficult to remove, you can heat the fan wheel or tap
lightly on the pull-out spindle.

In order to ensure a continuous connection, the motor shaft and the fan wheel
cone must remain free of grease, flat and undamaged. If the motor shaft is
scratched, the motor must be replaced.
Starting torque:
13,5 Nm
AS/11-2011 Part-No.: 7016399
3 = Flat seal motor spindle
4 = Fastening set motor
5 = Fan wheel
6 = Spring plates 3x
7 = Hexagon screw
8 = Fastening set fan wheel
Screws must be secured
with a screw locking (e.g.
Loctite)
Observe the positions*
of the plate springs
Starting torque: 58Nm
Wrench width WW17
6_08e_Motor_fan wheel installation and removal_e
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