Yet another question

[Scottie]

Can plunge cutting into tree with a saw like a 66 or an 88 with a fairly long bar, bend the bar to cause it to 'banana'? If this is the case, how can I mention it some one with 20yrs experience behind them to stop doing it?

 

Have noticed that our big saws are beginning to 'banana' when we are cross cutting big sections or even putting in the back cut when felling. I can only think that plunging the bar into the tree and using force can possibly put a bend on the bar.

[Johny Walker]

Can plunge cutting into tree with a saw like a 66 or an 88 with a fairly long bar, bend the bar to cause it to 'banana'? If this is the case, how can I mention it some one with 20yrs experience behind them to stop doing it?

 

Have noticed that our big saws are beginning to 'banana' when we are cross cutting big sections or even putting in the back cut when felling. I can only think that plunging the bar into the tree and using force can possibly put a bend on the bar.

 

never had a prob doing that probaly knackered bar & chain ,

[Steve Bullman]

its just as likely that sharpening is the issue. Also these big bars have a lot of flex in them as it is, and can be 'steered' when cutting. Its possible the operator is putting too much effort in to cutting, either because the teeth arent sharp enough, or maybe even he struggles with the weight of the saw.

I'd say its unlikely you'd bend a bar doing a plunge cut though unless you're doing something very wrong

[bob]

It's not what you do it.s the way that you do it

more often sharpening is the culprit

[Sam Thompson]

Sounds like you need a new file mate

[NI Tree]

it is more lightly to be your sharping or the bar may need leaving of.

[Joy Yeomans]

never had this problem ? i would imagine look to your chain and bar maintenance - faulty bar?

[AHPP]

You could flip the bar and see if a cut bannanas the other way.

[Taupotreeman]

As above really. Check that the teeth are sharp and even. Make sure the bar isn't actually warped and that it is dressed properly. Then watch the operator to see how much force they use when cutting or boring. Ideally the saw should be doing all the work but with an 088 or something with a bigger bar the operator might have trouble holding it level and then having to use some force to try and compensate when the cut is off kilter.

[Old Mill Tree Care]

Irregular tooth sizes and sharpness and burs on the bar, for sure.