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I have a poulan pro 260 chainsaw and just replaced the bar and chain. Tighten chain and brake nuts and after a few seconds of cutting the bar is shaking and the chain is loose. Switched back to the old bar and chain and got the same results. any ideas?

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Check the cog that the chain runs on, the one on the back of the centrifugal clutch they are supposed to be changed when you change the bar ((i dont bother until iget symptoms like yours or the chain starts to get tight and loose tight and loose)

Posted on Jul 29, 2009

  • kerry littleton Aug 11, 2009

    cant be bothered to say anything???

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1 Answer

How to adjust a poulon pro chain saw 46cc 20" chain tighting


First, I'd read the manual if in doubt. No matter the type of adjuster, tool-less or not, you loosen the bar nuts, tighten the adjuster until the chain just touches the bar on the bottom (while holding the bar nose up) then tighten the bar nuts. Chain should move easily.
Re Poulan chain tightening. Be sure it's oiled and sharp, of course.

Aug 20, 2014 | Poulan Pro Chain Saw 46cc 20"

1 Answer

I am unable to get the bar and chain off of my Poulan Pro 260 42cc chainsaw because the stud for the clutch brake housing has broken loose inside the housing. When turning the clutch brake nut the clutch...


I ran into the same problem and I "cheated" my way through this. First of all, the thread is metric on the stud. Take an imperial nut and start to thread it on the stud. Don't force it, it will stop after half a turn. Now you hold the imperial nut with a socket or a wrench, and use a flat wrench to undo the other nut(the one that is stuck). It took me 2 minutes to remove it and no damage done at all.

Hope it helps
Mike

Jun 25, 2011 | Poulan Pro 42CC 2 Cycle Chainsaw, 18"

1 Answer

Chain will not move on chainsaw


Normal 0 This will be the basic instruction for most common saws. Check that the chain brake is in disengaged position by moving the front hand guard towards the front handle if the saw is equipped with a chain brake on the handle. Loosen the bar nuts on the clutch cover. Loosen tension screw or other adjuster (thumbscrew) to allow the bar to be moved toward the engine. Some saws have this tension adjustment built into the bar. This will provide enough slack in the chain to able to reinstall it. It may be necessary to remove the side cover to gain access to the clutch/gear assembly on the side of the engine if the chain also jumped the gear here. Remove the cover, inspect for any debris or other obstructions in this area. If none, replace the chain back over the drive gear and in the bar groove all the way around the bar. It may be necessary to turn the bar adjuster screw more to provide enough slack in the chain to do this. Once the chain is in place reinstall the cover and bar lock nuts. Snug up the nuts but do not tighten these. Turn the bar/chain adjuster screw to tighten the chain on the bar (take up slack). I usually tighten to a point where there is no slack between the chain and the bottom of the bar and I can still turn the chain easily around the bar by hand. With experience you will get the feel for this chain tension. Once the chain is properly tensioned, tighten the bar lock bolts/ nuts on the side cover.


Some Poulan Pros have an adjuster screw on the front of the engine case right beside the bar, some have a tool less adjuster on the clutch cover, and some have a slot in the bar for adjusting the chain tension.


I hope this helps you out.

May 15, 2010 | Poulan Pro 42CC 2 Cycle Chainsaw, 18"

1 Answer

How do I put the cutting chain onto the bar of a Poulan Pro 260 18" unit?


If the chain is off the bar slide then you have to loosen the set screw on the bar on the side where it goes into the main body, may be undser a cover.....

Feb 15, 2010 | Poulan Pro Chain Saw 46cc 20"

2 Answers

How do I tighten chain on Model Poulan 2050. Can't seem to get tight enough.


Hold the nose up!
c581361.gif Chain Adjustment
  1. Make sure the chain brake is off (gloves will protest your fingers).
  2. If necessary, loosen the bar nuts that are clamping the clutch cover in place (or whatever holds the clutch cover and bar on). They don't need these really loose - finger tight will do.
  3. Ease the tension adjustment until the chain is obviously loose.
  4. Using one hand, hold the nose of the bar up.
  5. While holding the nose up, adjust the tensioner so that the center of the chain just touches the underside of the bar, add a touch more.
  6. Continue holding the nose of the bar up & tighten up the bar nuts / bolts / quick-release system. HTH
Lou

Nov 18, 2009 | Poulan Garden

1 Answer

I installed a new chain, adjusted tension, and saw will not cut.


Look closely at your chain, I'll wager it is the opposite direction.
637f977.gif Chain adjustment
  1. Make sure the chain brake is off (gloves will protest your fingers).
  2. If necessary, loosen the bar nuts that are clamping the clutch cover in place (or whatever holds the clutch cover and bar on). They don't need these really loose - finger tight will do.
  3. Ease the tension adjustment until the chain is obviously loose.
  4. Using one hand, hold the nose of the bar up.
  5. While holding the nose up, adjust the tensioner so that the center of the chain just touches the underside of the bar, add a touch more.
  6. Continue holding the nose of the bar up & tighten up the bar nuts / bolts / quick-release system. HTH
Lou

Nov 02, 2009 | Poulan Pro 42CC 2 Cycle Chainsaw, 18"

1 Answer

CHAIN AND BAR KEEPS LOOSENING UP AFTER 3 TO 4 CUTS. RESET TENSION AND BAR AND LOOSENS AGAIN AFTER 3 TO 4 CUTS.


Are you holding the nose of the bar up as you tighten the bar nuts?
You loosen the bar nuts and gravity pulls the bar down. You check the chain and the tension is correct, tighten bar nuts. Begin a cut and the bar slowly moves upward (no matter how tight the bar nuts) and the chain becomes slack.
19d6408.gif Chain adjustment
  1. Make sure the chain brake is off (gloves will protest your fingers).
  2. If necessary, loosen the bar nuts that are clamping the clutch cover in place (or whatever holds the clutch cover and bar on). They don't need these really loose - finger tight will do.
  3. Ease the tension adjustment until the chain is obviously loose.
  4. Using one hand, hold the nose of the bar up.
  5. While holding the nose up, adjust the tensioner so that the center of the chain just touches the underside of the bar, add a touch more.
  6. Continue holding the nose of the bar up & tighten up the bar nuts / bolts / quick-release system.
One more likely possibility, is the chain isn't being oiled.
Checking chain lubrication
Aim the tip of the bar at a light colored surface about 20
cm (8 inches) away. After 1 minute running at 3/4 throttle
you should see a distinct line of oil on the light surface. HTH
Lou

Oct 20, 2009 | Poulan Pro 42CC 2 Cycle Chainsaw, 18"

1 Answer

How do i loosen chain on my poulan 46cc 20 inch chainsaw ?


Is it fitted with a tool less adjustment device? See Operator's Manual. Normal configuration as below:

d914aed.gif Chain adjustment
  1. Make sure the chain brake is off (gloves will protest your fingers).
  2. If necessary, loosen the bar nuts that are clamping the clutch cover in place (or whatever holds the clutch cover and bar on). They don't need these really loose - finger tight will do.
  3. Ease the tension adjustment until the chain is obviously loose.
  4. Using one hand, hold the nose of the bar up.
  5. While holding the nose up, adjust the tensioner so that the center of the chain just touches the underside of the bar, add a touch more.
  6. Continue holding the nose of the bar up & tighten up the bar nuts / bolts / quick-release system. HTH
Lou

Oct 12, 2009 | Poulan Pro Chain Saw 46cc 20"

1 Answer

How do I tighten my chain? its too loose and keeps falling off.


Mike's answer might do it. My saw has a feature in the Chain Bar to turn right or left to move the Bar in or out. Loosen those same nut Mike wrote about, but now turn the Bar Feature (gear) to adjust, and then tighten the two nuts.

Jun 10, 2009 | Poulan Pro 42CC 2 Cycle Chainsaw, 18"

1 Answer

Poulan Pro 42cc Just Won't Cut It


The chain is directional, only cuts one way. If a new chain won't cut, it must be on backwards.

Apr 27, 2009 | Poulan Pro 42CC 2 Cycle Chainsaw, 18"

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