Carriage hesitation on Uni III

Over the past month or so, the carriage on our Uni III has developed some hesitation from when you hit the green cycle button and when it actually begins moving down the bed. This morning it finally just stopped cycling, or at least it would do a couple cycles and then stop at the control end. I did recently replace the spring under the latch which holds the carriage at the control end of the bed and thought maybe it was too long of a spring. After cutting a loop off and replacing it, the press will now cycle but still has some hesitation in initially leaving the control end of the bed. Any suggestions?

Thanks

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John Henry
Editor
7 years ago

Does the clutch slip when trying to overpower the spring? Perhaps a slight tightening of the clutch will get things rolling as they should.

Eric Holub
Editor
7 years ago

I got a similar spring from NA some years back, I think it was for a No. 4, and it kept the cylinder from moving over the latch. The diameter and length were right, but the wire was thicker than in the original spring, so it could not compress as much. Cutting off a few coils worked, and then you can relax the spring a bit by laying it flat and tapping its surface with a hammer.

Paul Moxon, Moderator
Admin
7 years ago

Is the cycle inhibited at all when the carriage latch spring is removed? When removed, the carriage will probably bounce forward a bit.

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