346 xp chain tensioning problem!!

[richyrich]

i have just assembled my new 346xp. i cannot get the chain correctly tensioned - when pulling the chain by hand it is putting tension on the rear sprocket- it is pretty hard to pull, but the chain can easily be pulled slack about an inch beneath the bar.

when you pull the chain it soon tightens up again- way too tight.

if you pull the chain backwards it moves easily as it should- with no strain on the sprocket. but the slack below appears straight away. pull it forward and it tightens again.

the 'side plate'/ chain brake cover is seated correctly, and the adjuster is in place.

the rear sprocket has quite a bit of play, but i assume this is correct, although i cannot think what else it is.

slackening the adjuster does not seem to ease the strain on the sprocket- it just gives more slack chain to drop, yet chain still does not pull. all strain seems to be on the rear.

i started the saw briefly to see if that slackened it up, but it seemed reluctant to shift the chain freely.everything is new- bar, saw and chain

any ideas welcome, thanks!!

[tommer9]

Is it seated properly on the sprocket?

[TimberCutterDartmoor]

Chainbrake?!!!

[tommer9]

Chainbrake?!!!

 

[richyrich]

Chainbrake?!!!

 

i have tried it without the side/brake plate off, whilst holding the bar in place- same problem!! thanks

[tommer9]

Take some pics of it without the side plate on so we can see mate.

[richyrich]

Is it seated properly on the sprocket?

 

i have tried it about 20 times today as i did wonder this myself- same problem every time.

i could not get hold of dealer today- corwen forestry who are very good,

i will ask them tomorrow as its a real mystery, thanks

[richyrich]

Take some pics of it without the side plate on so we can see mate.

 

will do tomorrow, thanks!

[TimberCutterDartmoor]

i have tried it without the side/brake plate off, whilst holding the bar in place- same problem!! thanks

 

Er, this should bear no consequence or have Husq gone back to an outboard clutch?

 

Sure the chain is the right guage - runs smooth in the bar rails yeah?

Edited November 30, 2010 by TimberCutterDartmoor

[Quickthorn]

Might be worth checking that bar sprocket and chain are all the right pitch - probably .325"