Parvalux motor disassembly

Parvalux motor disassembly

This topic has 3 replies, 4 voices, and was last updated 12 November 2025 at 10:22 by noel shelley.

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11 November 2025 at 22:01 #824063
Charles Lamont
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@charleslamont71117
Getting rather ahead of myself on the building of a Quorn T&C grinder, I am trying to get the motor apart. I need to do so to carry out the standard build procedures of lopping the feet off the end covers, tapping the blank mounting holes in the front end cover, and shortening the spindle.

It is a Parvalux SD 13 as supplied by Model Engineering Services with the kit (about 20 years ago).

It was mostly quite straightforward, but the spindle and rotor won’t come out of the front end bearing housing. There seems to be a single completely inaccessible phillips head screw which may be holding the bearing into the housing.

I have set the housing up on wooden blocks and clouted the shaft end not quite hard enough to brinell the bearing. It does not want to budge.

Ideas?
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11 November 2025 at 22:38 #824067
Trevor Drabble 1
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@trevordrabble1
Suggest you consider consulting either Parvalux Motors or the Quorn User Group about this . Good luck .
12 November 2025 at 09:48 #824082
Clive Brown 1
Participant
@clivebrown1
I’d be very cautious of risking damage to what is an expensive motor. I shortened the shaft for my Quorn quite readily without dismantling.It also looks possible to tap the existing blank holes in the end cover without dismantling. Well greased taps plus care should catch any swarf. I didn’t need to do this as my mk. I motor is foot-mounted so I can’t speak from experience.
12 November 2025 at 10:22 #824086
noel shelley
Participant
@noelshelley55608
BE VERY cautious ! Pressing the shaft into the bearing will be easy as it is supported trying to remove it may not. Wrap the motor in a plastic bag, seal round the shaft with tape and cut off with a abrasive 1.5mm cutting disc. use a similar idea for the feet if need be. Noel.
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