Linchimb Posted May 30, 2022 Report Share Posted May 30, 2022 Hi, I have loosened the bolts of shimpo Rk-55 but not sure how to re-tighten them. Can anyone shed light on this? Really appreciate your help! Quote Link to comment Share on other sites More sharing options...
Mark C. Posted May 30, 2022 Report Share Posted May 30, 2022 (edited) How did you loosen them? the photo is a wee bit hard to make out any bolts? Edited June 1, 2022 by Mark C. Quote Link to comment Share on other sites More sharing options...
Linchimb Posted May 30, 2022 Author Report Share Posted May 30, 2022 Hi, I just loosened them like normal bolts…they had some tension/spring in the main body according to user manual. Quote Link to comment Share on other sites More sharing options...
Hulk Posted June 1, 2022 Report Share Posted June 1, 2022 (edited) Hi Linchimb, Aye: "Remove splash pan and loosen all 4 bolts under the wheel head. Caution, Please be careful not to loosen too much. Loosen bolts. Do not remove completely. Spring inside the main body automatically adjusts tension of the belt." I'm not finding any diagrams depicting the auto tensioner/belt/pulley details... Ah! Try searching "shimpo rk 55 belt replacement" - I'm seeing three images depicting the underside, with cover removed. Here's a snip of one of the images I found: Looks like the bearings, shaft, bearing holder casting, pulley, retention plate assembly is designed to move/slide - the spring provides the desired tension, eh? You might try removing the cover, lining it up, starting the bolts, and voila. That retention plate may have fell, now hanging by the spring and perhaps against the pully. Be careful re-attaching the wheel head; looks like the bottom part of it is machined to be parallel with the working surface, hence it must ride flush on that large washer, which I assume sets on that bearing. No doubt you want the wheel head to run true, no wobble. If you turn the machine upside down, look to avoid banging the shaft or the wheel head on the ground. Good luck, please report back how it goes for you. I'd use anti-sieze on the threads and the shaft/wheel head contact, grease between the big washer and bearing. Edited June 1, 2022 by Hulk appropriate products where metal to metal... Bill Kielb 1 Quote Link to comment Share on other sites More sharing options...
Bill Kielb Posted June 1, 2022 Report Share Posted June 1, 2022 (edited) Great image! The good news, the flywheel is open so no need to remove, bad news the entire assembly is loose now. It’s got a plate with welded nuts and the whole assembly slides which likely means - careful - everything will fall through. Remove belt, likely loosen tensioner, reposition Flywheel and with your third hand hold nut plate and install bolts from top. Just kidding about the hand thing, looks a bit awkward, reinstalling may take another set of hands though or creativity to hold / prop stuff till bolts are started in the top. I think I would remove forward tensioner nut and washer completely leaving the stopper nut where it is. That way I could reinstall tensioner to its original tension without counting turns of the nut. That bearing assembly looks very sealed with no provision to lubricate, I am thinking the bearings are permanently lubricated and sealed. Edited June 1, 2022 by Bill Kielb Hulk 1 Quote Link to comment Share on other sites More sharing options...
oldlady Posted June 1, 2022 Report Share Posted June 1, 2022 linchimb, your supplier gave you very bad advice when he suggested you needed to grease any part of that new wheel. it should be his responsibility now, why not contact him or shimpo? Quote Link to comment Share on other sites More sharing options...
Linchimb Posted June 20, 2022 Author Report Share Posted June 20, 2022 On 6/1/2022 at 2:42 PM, oldlady said: linchimb, your supplier gave you very bad advice when he suggested you needed to grease any part of that new wheel. it should be his responsibility now, why not contact him or shimpo? Hi, Yes I contacted them again but they said they are getting minimal information from Shimpo. They could arrange to pick up my wheel and send to Potterycrafts who's the importer of shampoo wheels and ask them to take a look....... Quote Link to comment Share on other sites More sharing options...
Linchimb Posted June 20, 2022 Author Report Share Posted June 20, 2022 Thanks everyone for your kind advice and suggestion. I tool the blue cover off and noticed that the square metal plate, the spring and belt were all loose. I put them back in place and hopefully the wheel will be working again! Hulk 1 Quote Link to comment Share on other sites More sharing options...
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