Variable speed not working

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Forum topic by jeff posted 10-21-2017 06:23 AM 754 views 0 times favorited 4 replies Add to Favorites Watch
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1229 posts in 4232 days

10-21-2017 06:23 AM

Topic tags/keywords: lathe

I have a Grizzly 0658 variable speed lathe.I have power but the variable speed is not working.The digital readout lights up but as you turn the knob the lathe will not move.Any one know what might be the cause of this.

-- Jeff,Tucson,Az.

4 replies so far

View Wildwood's profile


2864 posts in 2901 days

#1 posted 10-21-2017 12:44 PM

Could be you have dust not allowing it to operate or need parts. Would try blowing out dust with compressed air with compressor or can compressed air first. Guessing you already checked for loose belt or loose pulley.

-- Bill

View Tennessee's profile


2901 posts in 3281 days

#2 posted 10-21-2017 01:13 PM

The digital readout is usually a separate circuit, reading a speed wheel on the output shaft somewhere. It would light up, but should read zero. In your unit, the sensor ring and bracket is up in the head, number 6 and 11 in your owner’s manual I looked at on the Grizzly website. Slight chance that if it is not reading, the drive will not respond, but I doubt it. If it shows a number, but is not turning, they are connected and the sensor is probably bad/dirty.

Most likely, you may have overheated your actual drive, (the little box where the readout and knob are), and blowing it out would be the first thing. Look for a reset button also, or even a board mounted fuse inside.
If all that fails, you probably either burnt the drive, or possibly your brushes on the motor are gone.

-- Tsunami Guitars and Custom Woodworking, Cleveland, TN

View Nubsnstubs's profile


1723 posts in 2497 days

#3 posted 10-21-2017 02:28 PM

Jeff, if you have an emergency switch on the control panel, check to see if it’s engaged. It could be something that simple….............. Jerry (in Tucson)

-- Jerry (in Tucson)

View jeff's profile


1229 posts in 4232 days

#4 posted 10-21-2017 08:21 PM

Thanks for your responses.I have blown the dust out-usually on a regular basis and during this problem.I have tried the reset button and checked the pulley.I have yet to look at the fuse because it is inside and a small area to work in-but will have to.

-- Jeff,Tucson,Az.

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