The motor and belt drive on this old mixer works fine, but the speed control doesn't get transferred properly through the gearbox. I disassembled the gearbox from the mixer, but cannot open it because one of the screws is under the belt wheel. I can see no way of removing the clutch mechanism or belt wheel.
Do you know how one is meant to do this?
(I imagine the mechanism is the same on newer machines. The clutch is engaged when the cover is put over the direct motor drive, when a pin pushes the 2 halves of the clutch together.)
If the belt wheel is pressed onto a spindle, you need a gear puller. Do you have any pictures of this? I am trying to visualize the problem.
I can see that it is pressed onto the spindle. Look for a roll pin going into the shaft. If there is non, removal will require a gear puller, a steering wheel hub puller may work too. Other than a gear puller, you could try to pry it up from the bottom but you risk breaking something. You can however use wood and tap it with a hammer. Just use a gear puller and that should work best. The conical hub may be held in place with a keyway in the shaft, but not always. Nice picture by the way. Hope it works, if you have more questions, please don't hesitate.
It also appears to be a coller below the cone, if thats the case, it is probably held on with a set screw which need a hex key to loosen. The cone itself looks like it needs a puller.
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As you can see, I need to remove the spindle with the conical piece on it, in order to remove the belt wheel which is loose on the spindle. This will enable me to remove the screw under the belt wheel, which is one of 5 holding the gearbox together.In use, the conical piece is pushed towards the belt wheel by a pin on the lid, engaging teeth on both parts. There is a spring between the conical piece and the wheel to hold them apart in the absence of the lid.
See photos above.
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