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Indicator Ring does not move
Posted: Wed May 20, 2020 6:34 pm
by MilRet
I have a mark V (2000). The issue I have: the speed dial works for increasing/ decreasing the speed but the indicator ring does not move.
I called Shopsmith today to ask what part I need as I wanted the 20% off sale but was told to email
catreq@shopsmith.com instead.
I have not heard back so I was hoping someone from this forum could help.
What causes the indicator ring (slow...bandsaw...etc) to not turn?
Thank you
Greg
Re: Indicator Ring does not move
Posted: Wed May 20, 2020 7:08 pm
by chapmanruss
The Speed Control Dial (indicator ring) has teeth (see upper arrow in the picture below) under the Speed Control Handle which is turned by the gear mounted on the front of the Control Bracket (see lower arrow in the picture below). That gear is turned by the teeth on the inside center of the Speed Control Handle where it attaches to the worm gear shaft. If the teeth on the inside of the Speed Control Handle are broken off it cannot turn the gear to turn the Speed Control Dial or if the Speed Control Handle is not on the worm gear shaft all the way it may not be engaging the gear to turn the Speed Control Dial. It will still change the speed by turning the worm gear shaft it is attached to. There is a cut out in the Speed Control Handle for a 3/32" Allen Wrench (if I remember the size correctly) to loosen the set screw that holds the Speed Control Handle on the worm gear shaft. Remove the Speed Control Handle to see which problem it may have.
- Speed Dial w- arrows.jpg (74.48 KiB) Viewed 5981 times
Re: Indicator Ring does not move
Posted: Wed May 20, 2020 7:48 pm
by MilRet
chapmanruss wrote:The Speed Control Dial (indicator ring) has teeth (see upper arrow in the picture below) under the Speed Control Handle which is turned by the gear mounted on the front of the Control Bracket (see lower arrow in the picture below). That gear is turned by the teeth on the inside center of the Speed Control Handle where it attaches to the worm gear shaft. If the teeth on the inside of the Speed Control Handle are broken off it cannot turn the gear to turn the Speed Control Dial or if the Speed Control Handle is not on the worm gear shaft all the way it may not be engaging the gear to turn the Speed Control Dial. It will still change the speed by turning the worm gear shaft it is attached to. There is a cut out in the Speed Control Handle for a 3/32" Allen Wrench (if I remember the size correctly) to loosen the set screw that holds the Speed Control Handle on the worm gear shaft. Remove the Speed Control Handle to see which problem it may have.
Speed Dial w- arrows.jpg
Thank you so much. I will go look. I am excited!
Re: Indicator Ring does not move
Posted: Wed May 20, 2020 8:45 pm
by MilRet
I finally removed the control dial after finding correct tool!
Found the small sprocket off the larger one.
The nut holding it was loose. I held the slotted screw while tightening the nut.
Is the nut supposed to be loose?
Re: Indicator Ring does not move
Posted: Wed May 20, 2020 8:51 pm
by MilRet
Thank you very much for the fast response and help.
I am once again a Happy camper!
Re: Indicator Ring does not move
Posted: Thu May 21, 2020 4:58 pm
by chapmanruss
The nut should be tight. It does two things. The set screw is a stop for the toothed Quadrant Assembly aka "porkchop" on the back and holds the gear in place on its bushing when the nut locks the set screw. The set screw limits the Quadrant Assembly's travel. I know I have instructions for adjusting the set screw but I cannot find the digital copy right now. Sorry