Question about Poulan Pro Chain Saw 46cc 20"

1 Answer

Chain damage I have a Poulan pro 20 Model 4620avp with tool-less chain tensioner. The chain keeps loosening and popping off the bar. The last timit happened it damaged the bar side of the chain and won't fit in the bar. There is also damage to the lower gaurd. Why does it keep loosening even though I tighten the nut as tight as possible. Do not want to remove burrs and damage from back of chain as it may continue to cause damage to bar and sprocket.

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  • Poulan Expert
  • 466 Answers

The chain could be stretching. Are you using a good quality bar and chain lube? Never use old motor oil. Once the chain has jumped several times it may be bent.
Properly adjust the chain and keep an eye on it while using. start with a new bar and chain and watch the tension. You can also replace the tool less cover with a standard cover for about $25

Posted on Nov 20, 2017

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Posted on Jan 02, 2017

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SOURCE: Poulan Farmhand chainsaw chain tightens too tight for motor to move chain

Make sure the chain is not over tightened. When adjusting the tightness, ensure there is at least 1/8" of looseness by pulling up on the chain in the middle of the bar and releasing it. If a chain becomes overheated because of leaning on the saw when the chain is dull, or lack of oil on the chain, it may expand in the track and not turn freely.
Marlyn, Mountain, Ont. Canada

Posted on Oct 03, 2008

  • 1 Answer

SOURCE: poulan pro with tooless chain tightening - chain will not stay on

i have a 4620 poulan that had the same problem. use it for 10 minutes, spend 15 minutes reinstalling the chain. i sent poulan an email threatening to sue them and they decided to send me the parts to change it over to the old style for free. try poulan.com

Posted on Apr 27, 2009

dontbother10
  • 2220 Answers

SOURCE: Is there a replacement clutch cover for the Poulan PP4218AVX?

Hello Dave;
If a Poulan PP4218 your answer follows; if not post back with the correct model number and we can replace that too.


Poulan “PP4218AVX” IPL (exploded parts list)
We are going to replace this page 1; item 47
http://weborder.husqvarna.com/order_static/doc/NIUS/NIUS2010/NIUS2010_545103408.pdf


Poulan “PP4218AVHD” IPL
http://www.ordertree.com/modelinfo/PWE/PP4218AVHD-Gas-Saw-Type-2/75.PP4218AVHD-Gas-Saw-Type-2.1.59.1.html

With this; “Handle, Chassis & Bar Assembly” print; item 44; Clutch Cover Assembly; $9.50.
You also need;

• Item 43; Bar Mounting Nut; $0.56 each (need 2) and
• “Engine Assembly” print; Item 44; Scrench; $9.75.
This is the configuration professionals have used forever. The only thing to remember here is to hold the nose of the bar up when adjusting and tightening the bar nuts.


You will need retain the original model number IPL, there may be internal differences.
Down loadable PP218AVHD IPL
http://weborder.husqvarna.com/order_static/doc/NIUS/NIUS2006/NIUS2006_545014325.pdf

Poulan “PP4218AVHD” OM
http://weborder.husqvarna.com/order_static/doc/NOUS/NOUS2005/NOUS2005_545047503.pdf


If you have more questions or need additional help please reply below and I will get back to you. Good Luck. HTH
Lou
Thank You for using FixYa.

Posted on May 17, 2010

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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

How to tighten chain on 4620avx poulan pro


First, RTFM- read the manual. Lost it? No problem, download it from Poulan PRO website page for PP4620avx. Pick a version you like, save and read it. Google is your friend.
Chain Adjustment Part cut and pasted as follows:
Adjusting the tension:
Chain tension is very important. Chain stretches during use. This is especially true during the first few times you use your saw. Always check chain tension each time you use and refuel your saw.
1. Lift lever on bar knob and turn counter-clockwise 1.5-2 turns to loosen clutch cover.
2. Turn adjusting wheel (downward direction) to tension chain until chain solidly contacts bottom of guide bar rail. Lift tip of guide bar while adjusting tension. Tighten chain Adjusting Wheel
3. Use a screwdriver to move chain around guide bar to ensure all links are in bar groove.
4. While lifting tip of guide bar, tighten bar knob securely (clockwise).
Hand tighten only.

Be careful not to destroy the adjustment mechanism. When it breaks, go for a clutch cover with the simple adjuster that needs a "scrench". Longer term, learn how to search this info. Saves time. Now you can work on sharpening chains- very important.

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

Jul 21, 2014 | Poulan Pro Chain Saw 46cc 20"

1 Answer

I can not keep the chain on. I replaced the bar and chain. It work fine for about 2 hours. Then the chain came off and would not stay on.


If there is no damage to the chain or bar (shouldn't be any if you replaced them), then there seems to be some other possibilities:
1) The sprocket, that transfers power from the motor or engine to the chain, could be damaged so that it does not keep the chain in position
2) The bar is no longer perpendicular to the sprocket and housing for the motor/engine. If the bar is at an angle then the spinning forces would tend to slide the chain out of the slot in the bar.
3) The tension on the bar is not being maintained so that it slips out of the bar slot. You need to monitor this tension as you are working because the forces on the chain an bar tend to push the bar back into the housing, loosening the chain and making it susceptible to slippage.

Jul 26, 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"

2 Answers

JUST BOUGHT A 20'' POULAN PRO TENSION A CHAIN


the adjustment screw near the end of the bar( next to the engine) needs to be turned in to tighten the chain just don't tighten it to much

Apr 04, 2010 | Poulan Pro Chain Saw 46cc 20"

1 Answer

I misplaced my manual and need to know how to adjust the chain and oil it.


Hello Michael;
If your saw is not a 4620????, reply below with the model and serial numbers.
Poulan.com/CurrentModels
http://www.poulanpro.com/node4043.aspx
Type just the model numbers (choose the suffix after the list is provided).
I find this easier to understand than the manual:
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 do not 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 (1/8 or less).
  6. Continue holding the nose of the bar up & tighten up the bar nuts / bolts / quick-release system.
If you have more questions or need additional help please reply below and I will get back to you. Thank you for using FixYa and Good Luck. HTH
Lou

Feb 28, 2010 | Poulan Pro Chain Saw 46cc 20"

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

Chain falls off Poulan PP3516AVX


The bar needs to be adjusted. What this means is the long, sliver arm that sticks out and has the chain wrapped around it is in too far. You will need to find what is called a 'set screw' or 'set bolt', which you can loosen and then adjust the bar in and out, which will tighten or loosen the chain. Keep in mind that you should have a little slack on the chain or you will burn up the bar. Also, make very sure that the chain is good shape. A chain that pops on you can take an eye out or fingers off of your hand if you're not careful.

Jun 06, 2009 | Poulan Pro 16-Inch 38 cc Anti-Vibration...

7 Answers

Poulan pro with tooless chain tightening - chain will not stay on


i have a 4620 poulan that had the same problem. use it for 10 minutes, spend 15 minutes reinstalling the chain. i sent poulan an email threatening to sue them and they decided to send me the parts to change it over to the old style for free. try poulan.com

Mar 04, 2009 | Poulan Pro Chain Saw 46cc 20"

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