Chipmaster Motor mounting

[Stuart BridgerParticipant @stuartbridger82290]

[Stuart BridgerParticipant @stuartbridger82290]

I have a Chipmaster where the motor/variator assembly is mounted on the cast U shaped frame. Does anyone else have this arrangement who could point me to how the frame is mounted to the base of the lathe. The rubber anti vibation pads on mine have degraded into a gooey mess. While I could strip it down, I thought it would be easier to get some advice before starting

1) The manual shows three bolts but only two pads, but is not clear which location has the pads. Mine appears to have a sticky rubber mess around all three?

2) What form are the pads, do they just rest on the base or do they have a through hole

3) How is the motor assembly secured to the based? Mine seems to pivot from the single mounting at the front, which applies tension to the drive belts. But i'm not sure if this is correct or just down to the fact that the pads have disintegrated. I get an alarming banging at high speed, which implies that the assembly is bouncing around.

4) Lastly if anyone has replaced these mounts, what have they used?

Thanks

Stuart

[DC31kParticipant @dc31k]

Manual pictures show correct mounting arrangement.

Three of everything.

Vibration pad is just like an exhaust mounting. 1/2" UNC male/female. Nominally 2" diameter. Nominally 1" high. Male bit screws into base, female receives bolt through adjuster.

Tension belts using adjusting screws.

Exact replacements probably hard to find, but 25mm high, 50mm dia. female/female with M12 thread would do and just require drilling out cabinet threads to use bolt inserted from underside and new M12 upper bolts.

[Stuart BridgerParticipant @stuartbridger82290]

Thanks, good information

[Stuart BridgerParticipant @stuartbridger82290]

Started the mount replacement tonight, you can see what state the old ones were in.

 

Once I had scraped the rmains of the rubber off, they unscrewed easily with water pump pliers

What was left

 

Replacement was well overdue!
New mounts will wait for another session.

Edited By Stuart Bridger on 06/11/2019 21:32:07

[Stuart BridgerParticipant @stuartbridger82290]

All done, Ended up buying M10 metric mounts as UNC were not easy to find. Made up some studs to adapt the thread.

Edited By Stuart Bridger on 16/11/2019 15:20:19

[Howard LewisParticipant @howardlewis46836]

A successful outcome. Good lateral thinking.

Well done!

Howard

[Stuart BridgerParticipant @stuartbridger82290]

Thanks, lathe is now significantly quieter running.

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