Myford Super 7 Power X Feed Query

This topic has 14 replies, 8 voices, and was last updated 13 July 2018 at 21:10 by Martin King 2.

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28 March 2018 at 18:22 #13181
Martin King 2
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@martinking2
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28 March 2018 at 18:22 #347921
Martin King 2
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@martinking2
Hi all,

Its been a funny old couple of days!

Got a call from an estate agent I know asking did I want a couple of old woodworking lathes in very dirty condition and some other 'junk' from a property they were going to level, if not it was all going in the skip.

Got to this really disgusting old shed and sure enough there was a RECORD Power Wood lathe with specially made solid stainless short bars. Loads of chucks and adapters and turning tools some good some rubbish.

Big bin of delrin, nylo, acetate 7 pen blanks and bowl turning blanks and lots of really nice part finished turning projects from someone of real skill.

The other 'wood' lathe was a Super 7B with gearbox and power cross feed on original stand in really dirty scuzzy condition but a 1978 serial number from the old manual that is with it. Came back with some help and we had to cut the drive belt and remove the entire rear casting with the motor, clutch and gubbins as we could not get the motor pulley free after an hour trying everything. All this is virtually in the dark and zero room to move!

Got the bits to a hire van in a rubber wheel barrow, (now defunct!) and managed to really pull a muscle in my arm.

The cabinet was full of accessories, again in poor cosmetic condition but all there, 4 chucks, both steadies, faceplates, 2MT chucks, loads of carbide insert tooling, micrometers etc. Great haul!

Got it all home and started to pick through it and it is not so bad as it looked, gearbox seems a bit seized up and there is a weird indexing thing on the bull wheel under the belt cover that is solid.

Got the tail stock off all OK but the saddle has power cross feed and I heard somewhere that you have to be really careful how it is removed, the manual has that bit destroyed by mice!

Any advice on this would be most welcome please.

This will be a long project getting this back into some sort of order but will enjoy the rescue attempt.

Will post a pic or two tomorrow if I can lift the camera!

Cheers, Martin
28 March 2018 at 19:09 #347930
Robbo
Participant
@robbo
Martin

The basic advice is DON'T UNSCREW the feedscrew from the feednut, but bring the slide forward so the front is level with the saddle, then remove the screws holding the feednut to the front of the slide, then the screws holding the end bracket, and remove the whole lot together. The drive gear will be on the feedscrew behind the feednut.

If you unscrew it from the feednut then you will lose the drive gear and it will be a bugger to get back.
28 March 2018 at 19:11 #347932
KWIL
Participant
@kwil
The leadscrew passes through a keyed gear that drives the cross feed. Remove gearbox completely and tailstock end L/S support, withdraw leadscrew to the left. You can remove carriage complete or you can break that down as well, remove the apron after removing the cross feed leadscrew. Only niggle is when you rebuild and have to engage the cross feed leadscrew in the key in the small drive gear you will see on top of the carriage. But that is all for later when cleaned etc!!

Not a B***** to put back, just a little patience required.

Edited By KWIL on 28/03/2018 19:12:59
28 March 2018 at 20:09 #347940
Martin King 2
Participant
@martinking2
Mmmmmm, sounds complicated! Way too tired to get my head round this tonight, will study what you have said tomorrow. Would anyone by any chance have the relevant pages from the manual that I could have or buy please?

Many thanks, Martin
28 March 2018 at 20:21 #347941
daveb
Participant
@daveb17630
It's nice to have friends! I think I could forgive the rust!

To replace the cross slide on a power cross feed Super7, slide on the cross slide until the FEED screw engages with the nut, stop when resistance is felt, turn LEAD screw handle whilst gently pulling power cross feed button until it pops out. Turn LEAD screw handle whilst gently turning CROSS feed, keep turning LEAD screw handle until FEED screw lines up with the keyway, push button in and screw FEED screw in.

It sounds complicated but it's all done by feel, after you've done it a couple of times it's easy and much faster than taking everything apart to get the cross slide on.

Edited By daveb on 28/03/2018 20:26:12
28 March 2018 at 23:07 #347962
Robbo
Participant
@robbo
The manual in this link, recently featured in a thread, covers power cross feed versions of Super 7.

**LINK**
29 March 2018 at 02:00 #347972
Hopper
Participant
@hopper
Posted by Martin King 2 on 28/03/2018 18:22:51:

Hi all,

Its been a funny old couple of days!

Got a call …. if not it was all going in the skip…. The other 'wood' lathe was a Super 7B with gearbox and power cross feed on original stand

Why oh why does this never ever happen to me?

Very funny old couple of days indeed.

Enjoy your new project, sounds like a beauty.
29 March 2018 at 08:03 #347978
Lambton
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@lambton
Martin,

I have sent you a PM please see the flashing inbox at the top of the site.
29 March 2018 at 15:37 #348000
thaiguzzi
Participant
@thaiguzzi
Posted by Hopper on 29/03/2018 02:00:07:

Posted by Martin King 2 on 28/03/2018 18:22:51:

Hi all,

Its been a funny old couple of days!

Got a call …. if not it was all going in the skip…. The other 'wood' lathe was a Super 7B with gearbox and power cross feed on original stand

Why oh why does this never ever happen to me?

Very funny old couple of days indeed.

Enjoy your new project, sounds like a beauty.

Indeed. What a score.

As they say over at the other forum across the pond – YOU SUCK!
30 March 2018 at 09:55 #348087
Martin King 2
Participant
@martinking2
Hi All,

First off, many thanks to the kind people who have sent me pdf and other info here which will prove invaluable when I get this all cleaned up ready to go back together.

As you will see from the pics no small task but better than it all ending up in a skip!

I am going to sort the Record Turning lathe first as that is easy and will give me a bit of space, cannot believe how heavy those stainless bars are!

I have refinished the cabinet tray using my favourite method of quick rotary sanding, heavy wipe down with lots of acetone, then a liberal coat of KURUST, followed by 2 coats of MYFORD Grey mixed up to RAL 7011 at my local paint shop, (WAY cheaper than from Myford!), about £11 a litre which usually lasts me forever but possibly not on this job!

Cheers, Martin
21 April 2018 at 15:49 #351006
Martin King 2
Participant
@martinking2
Hi All,

The project proceeds apace, quite slowly as we have other stuff to get on with at the same tiem so am doing a bit here and there, finshing some of the smaller components and getting ready to deal with the gearbox and power x feed. Many thanks to Brian Wood for letting me have the gearbox manual and some sound advice!

Not looking forward to cleaning up all those alloy castings, some are not so good..!

Cheers,Martin
13 July 2018 at 18:40 #362024
Martin King 2
Participant
@martinking2
Hi All,

Finally finished the S7 Rebuild, came up OK in the end but a LOT of work!

I learnt an awful lot during this process and really enjoyed doing it except for the stripping and cleaning of the castings! Hopefully it will now find a new home!

Cheers, Martin
13 July 2018 at 20:15 #362040
Andrew Tinsley
Participant
@andrewtinsley63637
Well some people get all the luck! Mind you it looks nice now, bet it looked horrible before you started!

Andrew.
13 July 2018 at 21:10 #362057
Martin King 2
Participant
@martinking2
Andrew, 'before' pics near the head of the thread.

Martin
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