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Poulan Pro #PP4218AVX, 42cc, toolless chainsaw: The chain keeps loosening & comming off, the main things is the chain will not tighten.

I have followed the instructions in the owner's manual. Thank' s for your help to fix this problem.

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Chain Saws , Outdoor Living
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2 Answers from these members:
Manage My Life
You need to loosen the knob on the bar completely and remove the bar cover and adjusting knob. Clean the inside of the chain cover and inspect the adjusting pin for damage.

When you assemble the chain cover be sure the adjusting pin is going in the hole in the bar. Tighten the bar knob but not tight. Adjust the chain tension knob and be sure it is moving the bar to tighten the chain.

Tighten the chain so the bottom links are running inside the lower groove on the bar. Rotate the chain when adjusting to be sure it will rotate easily.

When you have adjusted the chain properly and made sure the adjusting knob is moving the bar, lower the lock lever to keep the bar knob from loosening.

These instructions are in the assembly section of the owners manual for the saw. You can get an owners manual free at

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by Manage My Life
May 31st, 2011
Answered in 23 hours
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Manage My Life
When it comes to appliances or tools not working properly it can be really annoying. While you are waiting on an expert to answer your question, a suggestion I have is to visit Sears Home Services website to set service with a Sears technician. I have attached the link below. Hope this helps!
by Manage My Life
May 30th, 2011
Answered in 4 minutes
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