Re-assembling the cross slide

[Rob SurteesParticipant @robsurtees21409]

Myford Super 7 Cross slide

[Rob SurteesParticipant @robsurtees21409]

Wanting to properly lubricate the cross slide I inscrew it past the nut and now find that I cannot get it to screw back in. It will only go part of the way and then comes to a dead stop. I feel the problem is that it is not meshing with the power feed mechanism and would e grateful if anybody could guide me through this problem.

Thanks, Rob

[I.M. OUTAHEREParticipant @i-m-outahere]

Hi Rob ,

From your post i would guess that you have wound the cross slide in until the feed screw has disengaged from the feedscrew nut ?
Not knowing what machine you have makes things a little difficult as there are a few differing designs.
How far back in will it go ?
If you can wind say 5 or 6 turns before it locks it could be the gib strip being displaced .
What ever you do don't force it !
By the way welcome to the Forum and i'm sure there will be some one who either knows about or owns the same machine as you so help is not far away .

Ian

[JasonBModerator @jasonb]

As Ian says what lathe is it (Edit, I see the title – Myford S7)

If you feel its not meshing with teh cross feed then try turning the lathe over by hand whith cross feed engaged while gently trying the cross slide screw, it should bring the drive into mesh.

 

J

Edited By JasonB on 14/06/2013 07:52:40

[Chris HeapyParticipant @chrisheapy71135]

If you remove the top-slide you'll see a small gear wheel (if Super 7 with power cross feed). If so, whilst gently turning the cross-slide handle against the resistance, turn the gear with you finger until it engages with the keyway. When aligned the cross-slide will continue to move as it should.

[LambtonParticipant @lambton]

The late George Thomas explains how to overcome this problem simply on page 281 of his excellent book The Model Engineers Workshop Manual.

The "official" Myford method is described in the Super 7 instruction manual on page 34.

I have not tried Chris Heapy's method which sounds the simplest of all.

Eric

[Ady1Participant @ady1]

If it's jamming remove the gib strip and make sure you can get it back in before you go for it more seriously

You may have to figure out a sneaky part of the refitting process first

Once you can do it without the gib strip, refit it and do the job properly

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