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Tool Talk Discussion Forum

Industrial clutch removal

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Slowpoke

07-23-2006 13:19:06




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On a Promark chipper 310, I have a 9" centrifical drum clutch on a 20 HP kohler engine. All the friction material is gone from the shoes and the drum is scored, so it needs to be removed for rebuilding. The large center retaining screw is backed out a little and a two arm puller is applied to the 1/8" x 8" plate that is welded to the clutch hollow shaft and across to each of the clutch shoe studs. Before much force can be applied to the puller, the plate starts bending at the puller fingers, next to the motor shaft. At the rear of the drum is a double v belt pulley and a "C" clip is next to the pulley. After that is a collar next to the motor bearing. My friend says the C clip is holding the clutch on, I say no. He used a large puller and pulled from the back of the drum and a loud pop occured. We think the rear clutch bearing was damaged as it now is rough and noisy. In any case how can I pull the thing off without damaging it further? I used PB Blaster also, for 2 days. I've asked on Arborsite with no response.
Any help appreciated asap.

Slowpoke

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oldrustycars

07-26-2006 21:23:11




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 Re: Industrial clutch removal in reply to Slowpoke, 07-23-2006 13:19:06  
ive worked on this exact chipper, several times. i always end up torching the clutch off. use anti seize when installing the new one you wont have this trouble again. if you're not handy with a torch, get someone who is so you dont wreck the crank.



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Slowpoke

07-28-2006 01:29:00




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 Re: Industrial clutch removal in reply to oldrustycars, 07-26-2006 21:23:11  
Thanks. I would like to remove the clutch without destroying it, since a new one runs around $900 with tax and shipping. Maybe just heating the center will help. I'm also trying to develop a backing plate so the puller fingers won't bend the thin cross plate.



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