ralphbsz
ArboristSite Lurker
- Joined
- Jul 20, 2003
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I few questions about the use of rim sprockets. I know all of their advantages over spur sprockets, and most of my chainsaws use them.
First: As far as the sprocket is concerned, is there a difference between using regular 3/8 pitch chain, and low-profile 3/8 chain? I have a saw that is currently using an 8-tooth .325 sprocket, and for convenience of using the same bar and chain as my other saws of similar size, I would like to convert it to 7-tooth 3/8 low profile. Will low-profile chain run correctly on a regular 3/8 rim sprocket? Or is there any place one can get special sprockets for low-profile chain?
The chainsaw in question is unusual: It's a Greenlee hydraulic pole pruner. We use it on our bucket/crane truck (yes, we're a normal household that owns and regularly uses a digger-derrick). We just managed to get a replacement spline sprocket for it (after a 6 months wait), so now I can finally convert the saw to any pitch and bar I want. Since all other chain saws of that size class we have use low-profile 3/8 chain, it would be convenient to switch that one.
Second question: I always mount rim sprockets one way, with the writing (like "325-6") towards the outside. But does that make a difference? Would I get some more life out of them by flipping them over when they are halfway used?
Final question: Three of my saws use 6-tooth 3/8 low profile spur sprockets (an Echo top-handle CS-3400, Makita battery powered, and Echo pole pruner). To make maintenance easier, I'd like to convert all of them to use rim sprockets too, but I can't find 3/8-6 rim sprockets, nor can I find the spline mount for them specific to these saws. Am I looking in the wrong places?
First: As far as the sprocket is concerned, is there a difference between using regular 3/8 pitch chain, and low-profile 3/8 chain? I have a saw that is currently using an 8-tooth .325 sprocket, and for convenience of using the same bar and chain as my other saws of similar size, I would like to convert it to 7-tooth 3/8 low profile. Will low-profile chain run correctly on a regular 3/8 rim sprocket? Or is there any place one can get special sprockets for low-profile chain?
The chainsaw in question is unusual: It's a Greenlee hydraulic pole pruner. We use it on our bucket/crane truck (yes, we're a normal household that owns and regularly uses a digger-derrick). We just managed to get a replacement spline sprocket for it (after a 6 months wait), so now I can finally convert the saw to any pitch and bar I want. Since all other chain saws of that size class we have use low-profile 3/8 chain, it would be convenient to switch that one.
Second question: I always mount rim sprockets one way, with the writing (like "325-6") towards the outside. But does that make a difference? Would I get some more life out of them by flipping them over when they are halfway used?
Final question: Three of my saws use 6-tooth 3/8 low profile spur sprockets (an Echo top-handle CS-3400, Makita battery powered, and Echo pole pruner). To make maintenance easier, I'd like to convert all of them to use rim sprockets too, but I can't find 3/8-6 rim sprockets, nor can I find the spline mount for them specific to these saws. Am I looking in the wrong places?