Hobart A200 Stand Mixer "torque box repair" Questions

...TORQUE. WHAT MIGHT BE THE PROBLEM? I would say without looking at it a key is sheared or gear teeth are worn on the gear.usually its a sheared key,however if the mixer is older they use a dive key ...

...torque. I can stop it with my hand. The 2nd and 3rd. gears works perfect. I take it all apart and check all gears and keys and they all good. I also try to adjust the bolts on the top and bottom of ...