Foxfold Posted June 19, 2020 Report Share Posted June 19, 2020 Well it would appear that the 'bushings' on the upper arm of my saw need replacing. So off I went to order new. However, they have none in stock and not likely to have in the near future. However, they had a new 'upper arm' in stock so I bought that It cost me £56 !! Now off to tell Tony I will explain that it's cheaper than a new saw that would cost £700+ ---- If I've not posted by this time next week get them to dig up the garden as I'm likely to be under the lawn. meflick, John B, wombatie and 1 other 4 Quote Link to comment Share on other sites More sharing options...
JimErn Posted June 19, 2020 Report Share Posted June 19, 2020 He may grumble some, but in the end it'll be alright Sometimes you can get the number off the bearing and go to a bearing house to match it, something to keep in mind if there is a next time OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
kmmcrafts Posted June 19, 2020 Report Share Posted June 19, 2020 If I remember correctly you have basically a Hegner with a different name? I believe they have a brass bushing / bearing.. In my mind a bearing has rollers ( ie balls or needle rollers in them ) I know they are considered bearings but I call them bushings LOL.. Anyway that said.. those brass bushings can give fits trying to press them in...especially without proper tools.. so you might be ahead by buying the arm anyway.. Before I got the proper tools to press those bushings in.. I broke a few of those brass bushings trying to press them in years ago while rebuilding a front end on a lawn tractor.. The bushing it soft brass and if you can't press it in evenly and easily they break or deform quite easily.. also depends on the thickness of the bushing wall I'm sure.. the ones I was working with were real thin walled.. maybe 1/16 wall thickness if that.. OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
Foxfold Posted June 19, 2020 Author Report Share Posted June 19, 2020 It's this bit (green) that's broken, it's not keeping the arm 'tight' if that's the word I'm looking for. The arm is moving side to side making my blade look as though there's two of them in the clamp. Bought a new Hegner Quick Clamp while I was at it OCtoolguy and kmmcrafts 2 Quote Link to comment Share on other sites More sharing options...
kmmcrafts Posted June 19, 2020 Report Share Posted June 19, 2020 I think this is a shoulder bolt and inside the arm will be a pressed in brass bearing / bushing.. If there is slop.. it's probably most likely the brass bushing since it is softer than the shoulder bolt.. Though for some reason I tend to change both even though likely no wear or very little on the bolt itself.. If you have a dial caliper you could measure the wear.. I believe the new arm will come with a new bushing pressed in.. I'm not 100% sure on all of this as i have no experience with the Hegner type saws.. but looking at them over the years I've come to the conclusion that this is the case.. maybe not on all of their saws? I don't know.. OCtoolguy and Foxfold 2 Quote Link to comment Share on other sites More sharing options...
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