New owner of an older machine.

[larryfoster]

Thanks for that info, David.
I'll check Bill Mayo out and look at that other stuff.

[JPG]

I think SS should redesign the quadrant gear to include a true worm gear shape rather than the straight toothed(at an angle) gear that was a poor design choice way back then.

SIGH: But will never happen since it is a LEGACY part not currently supported.

[larryfoster]

Got the new quadrant on and re-assembled.
However, I can only go from slow to "J" on the speed dial.
I suspect that it has to do with the adjustment bolt for the quadrant travel but not sure.
Back at it tomorrow.

[chapmanruss]

David previously posted,

When it looks like the gear (aka pork chop or speed control quadrant) runs out of teeth this is hopefully the mechanical high speed limit (a long set screw) limiting the travel of the pork chop. If the motor sheaves have closed such that the V-belt is riding 1/16" to 1/8" in from the outside of the pulley then that is all probably working correctly, you are achieving a high speed, and you just have an indicator dial error. (Should be on FAST at the stop.) Similarly, at the other end of the range, you should hit a SLOW stop (not adjustable) and the belt should be very near the outside rim of the Idler sheaves, possibly riding slightly proud of the rim of the sheaves. The indicator should be somewhere near SLOW, but yours likely isn't.

Check its operation with the belt cover off to see where the belts are moving to in the Motor and Idler Pulley Sheaves as you change speeds. This will give you an indication of which end of the speed range is the problem. There should not be enough adjustment of the High-Speed Stop to account for it stopping at J. The High-Speed Stop is the set screw and Jam Nut that also serves as the shaft for the Gear (the one pointed out by the arrow in the picture below) that turns the Speed Control Dail. The first thing I would suspect as a problem is the Speed Control Dial is out of position putting J at the actual high speed.

Also check the gear teeth on the back of the Speed Control Handle. Broken or missing teeth there would cause the Speed Control Dial to not turn as the missing teeth of the Speed Control Handle pass it but would still turn the Worm Gear moving the Speed Control Quadrant. With that problem turning the handle may not be smooth and the dial would stop turning each time the bad gear section of the handle passes the intermediate gear.

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Speed Dial w- arrows.jpg (63.56 KiB) Viewed 24918 times

.
Check those gear teeth shown below.

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Speed Control Handle - back.jpg (154.77 KiB) Viewed 24918 times

[JPG]

If it stops at J, I wonder if it stops at slow?

[larryfoster]

I think the gears are ok on both the gear and the handle.

" There should not be enough adjustment of the High-Speed Stop to account for it stopping at J."

At "J" the motor sheave is very wide.
Guessing 1-12".
I can measure.
I did order a new belt because it's starting to fray a little.
It seemed pretty tight and the pulleys move well.

At "J" the idler pulley stops turning and yjr control won't turn anymore.

Thanks for your patirnce.

[DLB]

At "J" the motor sheave is very wide.
Guessing 1-12".

Are you sure you mean the motor sheaves, as opposed to the Idler sheaves, in that? 1-1/2" pulley width is in the ballpark of the maximum width. But wide motor sheaves means SLOW speed. If what you are saying is right, then I think you are likely hitting the slow speed 'stop' at J. If you meant Idler sheaves are wide, then you might be hitting the high speed stop and everything is working fine except the indicator dial is indicating wrong. This is easily fixed.

- David

[larryfoster]

Thanks for questioning, David.

I'm talking about the bottom pulley attached to the motor.
The idler or middle pulley doesn't seem to move much.
I did put some more 3in1 oil on it.

Since I've never seen one run I don't know if it's running fast or slow.
Doesn't seem to change speed much wherever the dial is.
At least from what I can tell.

I did pull the speed control out and examined.
Gears all look ok but the new quadrant is showing a little bit of wear already.

[HopefulSSer]

The idler or middle pulley doesn't seem to move much.

That's the problem then. They should both move equal amounts -- one should get wider as the other narrows and vice versa.

Try working it by hand to free it up

[larryfoster]

Thank you.
It spins but doesn't go in and out.
Do I pull on it?