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Chain adjustment chain got loose

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  • Motorcycles Master
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Just a guess, but beings you didn't give YEAR/MAKE/MODEL, that's all I can do.

IF it's the rear drive chain you're talking about (as opposed to the primary chain), get rear wheel off the ground.
With bike in neutral, rotate rear wheel until you find the tightest spot of the chain in the middle between the rear sprocket and the transmission sprocket.
Loosen axle nut, adjust rear axle adjusters evenly until slack is within spec.
Rotate rear wheel in normal direction of travel and see that chain is tracking true on sprocket. If not,adjust as needed with axle adjusters.
IF mechanical rear brake (instead of hydraulic rear brake), adjust brake.

Posted on Oct 16, 2013

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Chain comes off mcculloch electramac em250 chain saw


Your chain is too loose or it is worn out. Adjust the tension on the chain. The chain should not hang away from the bar but should be loose enough that you can pull it away from the bar with not much effort. Adjust the tension until it is set correctly.

Apr 25, 2010 | Plumbing

1 Answer

My chain keeps getting loose....is that normal?


On a new chain perhaps. One that has been in service for a while the stretch should be adjusted out. Not holding the nose of the bar up as you tighten the bar nuts is the usual cause of this malady.
Chain Adjustment
  1. Make sure the chain brake is off (gloves recommended).
  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.
  6. Continue holding the nose of the bar up & tighten up the bar nuts / bolts / quick-release system. HTH
Lou

Jan 14, 2010 | Ryobi Factory Reconditioned 18" 40cc...

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How do you adjust the chain tension on a husqvarna 350 chainsaw ?


I don't own a 360, but most saws you have to loosen the two nuts that hold the bar on, and adjust the adjusting screw that points toward the front of the saw while holding up on the tip of the bar. Tighten until the chain is snug, but still loose enough to be able to spin the chain on the bar.

Dec 27, 2009 | Husqvarna "Chain Saw - 16" Bar, 3 Hp

3 Answers

Chain keeps coming off Poulan 2150 woodsman gas chainsaw> Common causes?


The most likely cause is a loose chain.
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.
  6. Continue holding the nose of the bar up & tighten up the bar nuts / bolts / quick-release system.
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HTH
Lou

Dec 16, 2009 | Garden

2 Answers

Chain keeps coming off and when is on wont cut


If you are having difficulty fitting the drive links into the bar groove, the chain binds or rides up when rotated there may be burrs on the drive links. These often form if the chain comes off while at speed. use a file on the drive link flats to remove them.
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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.
  6. Continue holding the nose of the bar up & tighten up the bar nuts / bolts / quick-release system. HTH
Lou

Nov 25, 2009 | Garden

1 Answer

Husqvarna 350, the chain continues to free spin after trigger is released.


Is the chain loose?
ee42fee.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 29, 2009 | Husqvarna Chain Saw 20" Bar

1 Answer

Mcculloch 110 - loose chain - how do you adjust (tighten) the chain?


Look at the saw body from the nose of the bar, Just to the left of the bar a slotted screw head should be visible (on clutch cover). That is your tension adjustment.

Chain adjustment
  1. Make sure the chain brake is off (gloves will protest your fingers).
  2. If necessary, loosen the nut that is clamping the guide bar in place (or whatever your saw uses to hold the side plate and bar on with). We don't need these really loose - just finger tight will do.
  3. Ease the tension until the chain is obviously loose.
  4. Using one hand, hold the nose of the bar up.
  5. Now, while holding the nose up, adjust the tension so that the chain just touches the underside of the bar then just a little more.
  6. Continue holding the nose of the bar up & tighten up the clutch cover nut.

Sep 27, 2009 | McCulloch Garden

2 Answers

How to tighten a loose chain


To tighten a loose chain you need to pull the cotter key pin from the rear axle then loosen but do not remove the nut. It just has to be loose enough to slide in the swingarm. At this point there are tension adjusters on the ends of the swing arm you tighten them to take the slack out of the chain. NOT TO TIGHT! You should have 1 inch of play in the chain this is up down play not front to back. I push the chain up the highest it can go and measure how far it falls. NOTE: TURN THE TENSION ADJUSTERS THE SAME AMOUNT THE SAME DIRECTION IF THE AXLE IS TWISTED YOU WILL THROW THE CHAIN. This can make for a bad six months!

Aug 19, 2009 | 1998 Suzuki VZ 800 Marauder

1 Answer

Cannot tighten the chain bar


Make sure the bar is positioned on the bar adjusting pin before you tighten cover. Adjust tension with bar adjusting screw, then tighten bar bolts.

Mar 25, 2009 | Poulan PP4218AV 18" Chain Saw

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