SERVINICFEO RMATION(‘
Tech.Oust.Service
VKT 20 Gi/Zr
Motorcycles R50/5-R75/5
group:brakes,wheels,tyres
Munich, July 70
No. 1/70(286)e.
Ref.: Rear Wheel Brake
Dear Sirs,
when the rear wheel brake is pumping during operation (noticable~
by the slightly up and down going foot brake pedal) and eventually
also if you hear a squeeking noise, the reason of this is an
untrue brake drum.
For the correction of this take up support wheel hub in the
axle center and turn-off as fine as possible.
nominal dimension of inner diameter of brake drum
max. permitted run-out between brake drum
surface and axle
.max. permitted turn-off dimension
200 + o.185 mm
o.o2 mm
201.2 mm
If the tyre had been taken off for this work, the wheel has
to be rebalanced.
Yours very truly,
BAYERISCHEM OTOREWN ERKE
Aktiengesellschaft
ppa. i.V.
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Delleske Bennewitz
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Searchable index of BMW service bulletins for repair and parts installation for a variety of 247 models. This is not an exhaustive list. If you have ones to share to help complete the archive, please contact us directly.

