Question about Husqvarna "Chain Saw - 16" Bar, 3 Hp

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Cannot move the chain by hand after the bar has been tightened.

I just purchased the saw this afternoon. I was cutting a 3" tree and as I was just getting through the tree the chain came off. I followed the direction from the manual but after the chain is back on and the clutch cover re-installed per the instructions and ever thing is tightened I cannot get the chain to move by hand.

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First be sure the chain is on going in the right direction. When looking at the bottom of the bar the sharp tooth should be going towards the motor. When you put chain back on are the chain teeth properly engaged in the sprocket on the motor. Remove the cover again, check that teeth are in sprocket. Make sure pin from adjuster screw is engaged in the hole in the bar. Before you tighten the cover bolts, make sure chain will turn by hand. If not adjust the adjusting screw. Once adjusted, tighten cover bolts. Check again after tightening bar.

Posted on Jul 04, 2010

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Manual page:
http://www.poulanpro.com/ddoc/PPOO/PPOO2006_USen/PPOO2006_USen_PP4620AVX_952802146.pdf

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1 Answer

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1) install the chain, bar, and cover, and install the cover nut loosely
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3) tighten the chain until it touches the bottom of the bar,
and then tighen the adjuster 1/8 of a turn more.
*this will make the chain just a LITTLE snug
4) tighten the cover nut, and then by hand CAREFULLY rotate the chain.
If you cannot rotate by hand, it is too tight. re-adjsut
** This proceedure must be used on ANY brand chain saw.
Here is why.
If the bar nose is not lifted upon adjustment, when cutting,
the nose will move upward, the chain will have a 'droop' away
from the bar and appear to have loosened while cutting.
Any contact with a small branch will flip the chain off of the bar.
If you re-adjust it improperly, the same senerio will occur the next cut.

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