Question about Husqvarna 455 Rancher Chainsaw - 20" Bar

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Chain tension loosens during use - Husqvarna 455 Rancher Chainsaw - 20" Bar

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That is normal after using it. You have to loosen the lug nuts at the bar cover and with the screwdriver end of the tool tighten the screw near the back end of the bar. It is the chain adjustment screw. When tightening it, pull up on the chain with your other gloved hand. Don't over tighten it and tighten the nuts down so the chain will be snug but not too tight.
When sharpening your chain , do not file down the drag links too much. (They do cut better with the drag links filed down just a bit.) But that will also make your chain loosen up more quickly.

Posted on Apr 21, 2014

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Posted on Jan 02, 2017

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1 Answer

On a colt 5 ride on lawn mower - how can I tighten the drive chain.


Most drive chains will be tensioned by loosening one of the gears and sliding it in the direction of tension and retightening the bolt. Some chains are equipped with a tensioner that will require a bolt to be loosened and a screw turned on the tensioner to achieve tension

Feb 13, 2016 | Cars & Trucks

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StarTrac NXT Chain Tensioning & Alignment Video


About This Video


Adjusting Chain Tension and Alignment on a StarTrac NXT


  • In this video, we show how to tension and align the chain and flywheel on a StarTrac NXT bike


  • First you see an example of a chain that is way too loose


  • To correct this loosen the flywheel bolt on both sides of the flywheel


  • Loosen the tension nut on the sprocket side of the bike and tighten the tension bolt until you get the proper deflection on the chain



    • A properly tensioned chain will have roughly 3/16" of deflection




  • Tighten the tension nut and the flywheel nut on both sides as shown in the video


Check the Alignment of the Chain and Sprockets after Making a Chain Tension Adjustment


  • Misaligned chains will look like they are walking from side to side where they enter and leave the sprockets



    • This can cause noise, premature wear, as well as making the chain look to be jumping from side to side during use




  • To correct this, loosen the flywheel nut on both sides of the flywheel, then loosen the tension nut and adjust the tension bolt to move the flywheel in the proper direction needed to align the chain with the flywheel sprocket, as seen in the video



    • Note: If you have already achieved proper tension of the chain, adjusting the tension nut on the opposite side from the sprocket will help to keep the same tension on the chain




  • Don't forget to check the chain tension after making an alignment adjustment




Chain Tensioning Alignment Video for StarTrac NXT Bike

on Feb 11, 2015 | Startrac Fitness Products Star Trac 4410HR...

2 Answers

Tightening chain


Tightening chain is performed by adjusting the bar. Two bolts generally hold the bar in place. Loosen these. Make sure that chain has enough play to easily move by hand. If it sticks, it's too tight. Then tighten the bar, check the chain oil, and cut wood.

Mar 25, 2015 | Garden

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

Chain is off the bar of my husqvarna 435 chainsaw


If the chain gets too loose it can come off the bar, you need to loosen the two hex nuts that clamp the bar in position then with a flat blade screwdriver turn the tension screw anticlockwise, the screw is in the middle of the slot in the bar between the two clamp nuts. You will need to wind it back a fair way to allow the chain to be put back into its guide slot on the bar, then just nip up the clamp nuts gently to stop the bar flopping about and tension the chain by turning the slotted adjuster screw clockwise until the chain is just right... you should be able to just spin the chain without too much friction and if you lift a link in the middle of the bar with your fingers it should just half lift out of the guide slot. The chain will loosen a little more as the chain heats up during use. Don't forget to fully tighten up the clamp nuts when finished. Always check that the chain is not getting too loose and take up the slack from time to time. Happy sawing !

Nov 30, 2013 | Husqvarna Chain Saw 20" Bar

1 Answer

The chain on my Jonsered chainsaw becomes slack after just a few minutes use.


The chain on a chainsaw expands during use.This is caused by the heat generated by friction with the timber being cut. The chain should be monitored during use and the slack taken up by the tensioning adjustment screw or knob. You may have to loosen the nuts holding the bar before doing this and then tighten them securely. If these nuts are loose the chain can become slack. If you give me the model of the chainsaw I can try and find a manual and check the tensioning procedure as newer models of chainsaws have either automatic tensioning or have a thumbwheel arrangement for doing this.

Mar 10, 2011 | Garden

1 Answer

I cannot find my manual to my 18v cordless chainsaw ccs818. I need directions for putting the chain back on. I would like to download a copy of the manual.


Your manual can be found here:

http://www.blackanddecker.com/Manuals.aspx with pop-ups enabled then enter your model number
or
http://www.dewaltservicenet.com/documents/English/Instruction%20Manual/90560838,CCS818.pdf

See the instructions for replacing the chain on page 11. It makes reference to the figures on page 6 so that you know exactly what to remove.

Basically... loosen the bar allen screws. Remove the sprocket cover. Loosen the bar retaining bolts. Use a flat bladed screwdriver on the bar / chain tension screw to shorten the bar enough to install the chain. Then adjust the chain tensioner so that there is just a little slack in the chain at the bottom of bar between the drive sprocket and the bar. Tighten the bar retaining bolts install the cover / tighten all cover fasteners. (see details D and E page 6 of the 2nd link above.)

The steps below are copied from the manual.... I can not undo the formatting and can not post the figures here due to size restrictions..

Thanks for choosing FixYa,
Kelly

Replacing the Saw Chain

CAUTION: Sharp chain. Always wear protective gloves when

handling the chain. The chain is sharp and can cut you when it is

not running.

WARNING: Sharp moving chain. To prevent accidental

operation, insure that battery is disconnected from the tool

before performing the following operations. Failure to do this

could result in serious personal injury.

• Place the saw on a firm surface. Rotate the two allen head screws

(11) counterclockwise with the wrench (13) provided as shown in

figure E.

• To remove the saw chain (9), rotate the tension adjustment screw

(23) in the front of the housing using the flat screwdriver end of the

wrench (13) as shown in figure F. Turning the screw

counterclockwise allows the guide bar to recede and reduces the

tension on the chain so that it may be removed.

• Remove sprocket cover (10) and allen head screws (11).

• Lift the worn saw chain (9) out of the groove in the guide bar (8).

• Place new chain in groove of guide bar making sure saw teeth are

facing correct direction by matching arrow on chain with graphic on

housing shown in figure G.

• Place the saw chain and guide bar assembly around the sprocket

(19). Check to make sure that the slot (20) in the guide bar (8) is

over the two location pins (21) shown in figure E and that the hole

below the slot is located over the adjustment pin (22).

• Replace sprocket cover (10) and thread allen head screws (11) in

with wrench until snug, then back wrench off one full turn.

• Pull bar nose up and keep it up as you adjust tension.

• Rotate the tension adjustment screw (23) in the front of the housing

clockwise to increase the chain tension as in Figure F.

Follow instructions in "Adjusting Chain Tension" section.

• While still holding the bar nose up, securely tighten the rear allen

screw (11) first, then tighten the front allen screw.

• When the chain is new check the tension frequently (after

disconnecting battery) during the first 2 hours of use as a new chain

stretches slightly.

Adjusting Chain Tension

CAUTION: Sharp chain. Always wear protective gloves when

handling the chain. The chain is sharp and can cut you when it is

not running.

WARNING: Sharp moving chain. To prevent accidental

operation, insure that battery is disconnected from the tool

before performing the following operations. Failure to do this

could result in serious personal injury.

• With the saw still on a firm surface check the chain tension. The
tension is correct when the chain snaps back after being pulled

1/8 inch (3mm) away from the guide bar (8) with light force from the

middle finger and thumb as shown in figure H. There should be no

"sag" between the guide bar and the chain on the underside as

shown in figure I.

• To adjust saw chain tension, loosen the allen head screws (11).

• Rotate the tension adjustment screw (23) in the front of the housing

using the flat screwdriver end of the wrench (13) as shown in

figure F.

• Do not over-tension the chain as this will lead to excessive wear

and will reduce the life of the bar and chain. Overtensioning also

reduces the amount of cuts you will get per battery charge.

• Once chain tension is correct, tighten allen head screws (11).

• When the chain is new check the tension frequently (after

disconnecting battery) during the first 2 hours of use as a new chain
stretches slightly.

Nov 08, 2010 | Black & Decker Garden

1 Answer

Need instructions on how to change the blade.


remove cover at base of chain arm. loosen nuts holding arm in place. loosen tensioner. The chain should come off. put on new chain tighten tensioner until guides on inside of chain are just inside of groove while pulling on chain at center of arm. ( Make sure the chain saw if off while doing.)

Oct 26, 2010 | Garden

1 Answer

Tighten chain?


Depending on the model, you adjust the chain tension using the screw that is located either between or below the two nuts that hold the sprocket/bar/chain cover. Loosen the nuts and turn the screw clockwise to tighten, counter-clockwise to loosen. Once you have the tension set, lift up on the bar from underneath and tighten the two nuts. Proper tension should show about half of the chain drive, and should only be done when cold. After 4 to 5 minutes of run time, stop the saw and check the tension again. A little heat in the bar/chain will cause it to loosen up. It will need re-adjusting.

May 15, 2010 | Husqvarna "Chain Saw - 16" Bar, 3 Hp

1 Answer

Trying to put timing chain back after replacing head gasket on a Nissan N22 motor. Need to find adjustment to loosen timing chain so that i can attach timing gear with chain onto OH cam. can you help on...


no adjustment neccesary. There is a timing chain tensioner, which you will simply push back in to its body. once you do that, there should be a small hple somewhere on the body of the tensioner. That' sthere so you can piut a paper clip into it to keep the tensioner from coming out. Once you lock that in place you can remove the tensioner and than the timing chain.Once you get it all back together, just pull back on the pin and the tensioner will come out and put tension on the chain. good luck.

Jul 24, 2008 | Nissan King Cab Cars & Trucks

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