Pultra Headstock Problem

[Mark McCreaParticipant @markmccrea21094]

Hello,

I need to dissasemble the headstock of my Pultra 1770 and remove the spindle. I have read everythng about Pultras on this forum and thankfully have a drawing of the headstock from this forum. I have run into a problem ,I have removed the 4 bolts from the round plate at the back of the headstock but the plate is stuck fast probably with rust. so far I have soaked it in (WD40)penetrating oil from Halfords and tapped every edge of the plate and the outer casing of the headstock with a hammer. I have heated it up but not red hot as I am afraid of warping the casting. I have made metal hooks and hooked them into the inner hole and tried to tap the plate out but no luck.

I have put photos in an album called pultra headstock problem, also the bolt hold the pulley on is seized.

If anyone has any ideas on how to remove the reqar plate or if anyone has dismantled one of these headstocks and has some photos or if anyone has a manual for this lathe I would be grateful.

Mark

[Mark McCreaParticipant @markmccrea21094]

Siezed nuts and backplate

[roy entwistleParticipant @royentwistle24699]

Mark WD40 is not a penetrating oil. Use something like PlusGas or even diesel

Roy

[Mark McCreaParticipant @markmccrea21094]

Roy,

thanks for the tip will try diesel tomorrow.

Mark

[Mark McCreaParticipant @markmccrea21094]

Roy,

just to let you know the diesel worked I let it soak for week and today I was able to loosen the allen bolt and remove the pulley.(Last weekend I snapped an allen key on this bolt). Next is the bearing lock nuts in the centre of the headstock, now the pulley is off I have a little more access to the lock nuts which are soaking now,so hopefully I can get these moving this weekend or next week..

Thanks again

Mark

[Stephen Bunch 1Participant @stephenbunch1]

Roy,

This is a bit late in the day but it is always useful to have Krano-Kroil for such seized jobs.

Have always found it excellent,

Steve B

[roy entwistleParticipant @royentwistle24699]

Steve B Sorry but never heard of Krano-Kroil. Where do you get it from in UK ?

Roy

[OldironParticipant @oldiron]

Posted by roy entwistle on 23/05/2020 10:39:55:

Steve B Sorry but never heard of Krano-Kroil. Where do you get it from in UK ?

Roy

Ebay, Amazon or Link

regards

[Author]

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