mgdesigns wrote:I was turning a set of walnut pen blanks, and I was sanding them when the spped slowed and the output shaft on the quill stopped rotating. The motor sounded strained so I shut it off. At the time I was at middle range of speed and trying to go faster. I unplugged and removed the front cover to see if I could detect the problem. I did remove the v-belt and that was easy enough to do. But it appears the variable pitch pulleys are not shifting. I am hoping all they need is some lubrication or grease, but not having ever seen inside of this beast I am just guessing.
The motor turns freely and the drive pulley from the motor to the speed adjuster shaft was moving, but the adjustable top pulley was not spinning. I shut it off and on a few times trying to lower the speed with each attempt. The speed when lowered whould sieze the motor. At one point I hand turned the quill shaft to try give it a running start, and it almost started. But no go now. The Gilmer Pulley seems tight (maybe too tight), and the quill did turn initially. But now if I turn the quill shaft by hand the Gilmer belt does not move and the toothed gear on the top shaft doesn't move but the shaft must be turning.
This is an older Greenie gearbox and there is no SS Name Badge on the opposite side of the speed adjuster, so I dropped the motor pan and tried to see inside but I am not so limber anymore. Maybe Sunday I can stand it up, and try to remove the motor and start to inspect shafts and bearings.
The Gilmer version has a torque limiting clutch on the upper shaft.
From this description I believe you have two different problems.
1) Both the control sheave(on the idler shaft) and the and the floating sheave(ion the motor shaft) need lubrication. They are not responding to the speed changer movement.
2) The output shaft clutch probably is slipping. This requires disassembly of the upper shaft. Bill Mayo has these rebuilt, and MickyD can tell you how he fixed his.
It appears the Greenie has not been lubricated sufficiently in the past, so the BEST thing to do is to tear it down, clean the innards up, lubricate , reassemble, and kiss this problem good bye, and lubricate often in the future. If Yours is an older Greenie with NO oil holes, they need to be 'added'.