Why did this happen?

[aob9]

I was thinking that, if anything they are high, for me anyway!

 

Point taken on the rakers.Cheers

[GardenKit]

did not notice it to begin with, but the bumper tie strap should have been on the other side as it has 3 RH ones in a row instead of LH, RH, LH etc. Probably does not make too much difference but it does unbalance the chain a little, also supports the theory of being made by someone practicing.

[spudulike]

Seen the guy who makes my loops test his chains to make sure the link freely turns after riviting, if it is tight he rejects it.

 

Reckon the rivit was too tight as previous guys have said.

 

Check your chain catcher is still in place - I never send out a saw without one whether the owner wants it or not:001_rolleyes:

[GardenKit]

91vg chains in particular are very tricky to make and easy to get wrong. The problem starts with breaking the chain from the roll. The drive link is small and does not sit well on the anvil and bends easily if the punch is not totally central. The link bends at the weakest point which is the hole, this elongates the hole which then pinches on the rivet. This, along with the curve of the bent link makes the pivot tight even if the rivet head is perfectly formed.

As Spudulike says, the tight ones should be rejected, but often the task of chain making is given to staff who lack the knowledge, so they go on the shelf.

With these small chains it is best to check them yourself before fitting, if its tight dont fit it.

[butler]

Second that, clearly a joint link. No writing on it. Reckon whoever put it together was a bit heavy handed with the rivet, head looks a little flat.

 

happens to me all the time.....the locals hear cant make chains properly

[elicokiz]

Can you not see the rackers in the picture??, I would say they really need taking down more than they are.

 

Yes Skyhuck i can, but the chain has been sharpened due to the wideness of the gullet and as you know the top plate slopes backwards so a depth gauge set to low originally may have caused damage? reading others posts does allow me to reflect on what i originally posted ...i was under the impression that if a chain is lose and the depth gauge setting too low then the heal has a tendency to dig into the rails as the working corner enters the kerf? I realise a slack chain would cause more damage at the toe of the link as momentum would cause the chain to cut in at the bottom of the bar nose.

oh well you live and learn...well you live anyway

 

regards

Dave:thumbup:

[elicokiz]

ok being completley honest here, does the pre-set tie strap usually come complete with ramp? is the chain identified in the photograph new if not how much ware would you say it has? (50% +)? , as i say honest questions as i do not use said type of chain and i'm curious.

 

regards

Dave

[scottythepinetree]

 

happens to me all the time.....the locals hear cant make chains properly

 

Used to work for a company that let us make our own chains up. All the other lads hated doing it. I quite enjoyed it, so used to make them up for everyone else. Got pretty good at it (after a while, few duff ones went out). Like everything really, you just have to take your time, and get every step right which isn't that hard TBH.

[3dogs]

it decided to give up and die rather than ride a Tanaka:lol:

[GardenKit]

Or maybe the Tanaka killed it?