Chain Sharpening.. Acceptable discrepancy between teeth.

[champagnecharly]

When chain sharpening, what is the acceptable discrepancy between teeth depth? I'm new to this and I want to avoid kickback where possible. I've got my micrometer and wondering if I'm going a little OTT.

[combined tree services]

In short - as long as your depth gauge is accurately set to the tooth then it is acceptable to have 1- 1.5mm difference

[champagnecharly]

Ok great.. So they were all fine 30 mins ago .. there's me getting it to around 0-0.5mm

Going to check the depth again now but were all spot on before.

[combined tree services]

The thing you need to remember is that your chain has low kick back characteristics as standard , as long as you employ good working standards and methods you will automatically reduce the potential risk of kick back

[Brushcutter]

In short - as long as your depth gauge is accurately set to the tooth then it is acceptable to have 1- 1.5mm difference

 

When i did my saw refresher a few months ago. I was told off and marked down on the maintenance because my saws teeth were around 1-1.5mm difference. It had never been caliper sharpened either. Admittedly i've just caliper sharpened so ever tooth is 5.45mm +/- 0.05mm but i'd say that is OCD.

[combined tree services]

I can't comment on the assessor/trainer but the fact is that there is no actual tolerance set down by city and guilds . Did the saw cut ? Was the saw displaying any unacceptable levels of vibration ? As long as the saw produces saw dust / chip then it is classed as sharp .

[doobin]

As long as the saw produces saw dust / chip then it is classed as sharp .

 

I've seen plenty of saws produce dust...I wouldn't class them as sharp!

 

I would have thought a 1.5mm difference between left and right teeth would produce a curved cut.

[combined tree services]

I've seen plenty of saws produce dust...I wouldn't class them as sharp!

 

I would have thought a 1.5mm difference between left and right teeth would produce a curved cut.

 

As an assessor as long as something comes out of the back then it cuts which in assessing terms is acceptable

[doobin]

As an assessor as long as something comes out of the back then it cuts which in assessing terms is acceptable

 

Seriously? Well, you know what they say. Those who can, do. Those who can't..teach

[combined tree services]

Seriously? Well, you know what they say. Those who can, do. Those who can't..teach

 

Nope it's called starting somewhere , bearing in mind candidates have seen less than 40 actual hours on a saw ( including maintenance ) which I'm sure you will agree is not an overly huge amount of time to become proficient in all aspects let alone a pro when it comes to sharpening . Would you not agree ?