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The saw has run along time with no trouble. I noticed the brake did not engage when I let go of the trigger yesterday. After a few cuts like that he motor began making a growling noise and couldn't wind up to full speed. If I kept the saw running it would eventually flip the breaker. I looked at the brushes and they seem fine. Not sure where to go from here?

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It could be time for replacement if the motor is failing.

Posted on Dec 13, 2014


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1 Answer

Kobalt SM2505LW 10 sliding compound miter saw makes grinding noise and slow saw stop

a bearing ,brushes or brake broke more likely the brake mechanism if blade coasts

Jul 07, 2016 | Saws

1 Answer

Chainsaw is running,but doesn't cut.what is possible causes of this?

Depends on what you mean when you say 'it doesn't cut'.

If you pull the trigger and the chain goes around, but it won't cut anything, there are a few possibilities, depending on whether it's been serviced or otherwise opened up:
* The chain is dull: The individual teeth do get dull over time. There are DIY kits at many hardware stores, usually with an alignment jig and a file/sharpening-stone like rig to re-sharpen a tooth. You'd need to sharpen them all. (Or take it to a service center and let a pro do it).
* The chain is on backwards. In some cases, people servicing the chain have put it on reversed. The cog that drives the chain will engage the chain with it mounted either way. The chain should go away from you on the top of the blade, and back toward you under the blade. With the engine OFF, check the teeth to make sure they are pointing the way the chain goes. If this is the case, removing the chain and reversing it will likely fix the problem.

You pull the trigger, the chain moves, but it stops (with motor still running) as soon as you put the chain to the wood.
* Clutch needs adjustment: There is an engagement clutch that will let the chain be at rest at idle but engages it at higher RPMS. You can up the RPMs more before engaging the blade and see if that works. If this works either run it that way, or if the RPMs are excessive, you may need to get the clutch adjusted or replaced.
* Chain is really loose and skipping on the drive cog when load is on the chain. If this is the case, there'll be a lot of noise at the base of the blade. This is incredibly dangerous. If this is the case, pull the saw away and shut it down immediately. There is a chain tension adjustment for the saw. It may not have been re-tensioned after previous service. Better, turn the saw off, and see if you can pull the chain away from the bar more than a tiny bit in the middle of the bar. If you can, get your manual and adjust the tension first. Then try again.

Chain never moves, even when you rev the saw engine:
Most likely the clutch is either frozen, damaged, or mis-adjusted, or the engine is mis-tuned and can't get to proper RPMs to engage the clutch. The manual for the saw should have instructions for adjusting both the max RPMs and the idle, both of which are important for the saw to run properly, not redline, and not stall on idle.

Also, for spotty power or stalling - check the fuel. If it's been in the saw for a long time, dump it (dispose of properly) and put in new fuel. Make sure you're using the right mix - chainsaws are 2-stroke and need a fuel-oil mix - make sure the right mix is in the gas before filling. Failure to match it up right can damage the engine very quickly. You can also check the spark plug - they can get fouled if left for long periods for a last chamber of oil-gas to slowly evaporate, or if run with the wrong fuel mix.

There should also be a fuel filter, likely at the end of a fuel line leading into the fuel tank. If you don't remember replacing it in recent times, replace it. They'll get clogged over time and limit fuel flow, cutting power.

Likewise, there'll be an air filter. If you've been cutting in conditions that are dusty, which includes most conditions where there's this big spray of sawdust coming off the saw, then you can clog the filter easily and cut off good air flow the the piston. Blow it off, at least, and/or replace it.

Finally, if the saw has been around a few years, check the fuel lines. They tend to get hard and brittle over time, and can start leaking, which will inevitably mess with consistent power. They are stiff, and often a real PITA to get onto the small spigots, but can make a big difference on performance if upgraded to new ones.

Nov 02, 2015 | Garden

1 Answer

When cutting with saw sthil 026 it shoots sparks from the bar or chain nothing seems to b blocking bar???

First, don't cut nails as you will dull the blade in seconds. Is the safety anti-kickback bar shoved into position. That applies a chain brake that can spark if you can get the engine started with it engaged. Other than that, inspect for the chain running into stuff it should not. Assuming you have put oil in the chain bar reservoir and pumped the pump a few times to get some pre-lube on the chain & bar;.

Aug 15, 2014 | Garden

1 Answer

Chainsaw issue

What is the model number of the saw?

It may as simple as a tank vent that is clogged. I have seen this on Poulan saws, and many of the new Craftsman saws are rebranded Poulans.

If the saw has a tiny hole in the center of the fuel cap, try this test. Engage the chain brake, turn the saw on its side so the cap is facing upward, loosen the cap slightly, and start it while a strong helper holds it on a workbench. If it runs normally (don't heat up the clutch drum while the brake is engaged!), the tank vent needs to be cleaned or cap replaced. If it still won't run correctly, it is time to diagnose the carburetor and other areas of the engine.

Let me know if you have any luck getting it going.

Mar 30, 2014 | Craftsman Garden

1 Answer

Makita 2401b

Some mitre saws have extra windings in the field coil so a possibility is a break in this brake coil another possibility is the switch some have a contact that switches the back emf from the field coil to the brake coil when you release the trigger. And believe or it or not some times changing the brushes affects the braking have seen this a few times on the LS1013.

Mar 15, 2014 | Saws

1 Answer

Ryobi pcn 4040 chainsaw won't start What is the

1st add fuel/oil mix to fuel tank , then top off oil tank with bar oil , place saw down on flat surface , press 'ON" button above trigger handle to ON (its marked on case) then pull out blue choke handle till it clicks and stays out , press primer bulb with thumb 8 to 10 times bulb will become harder to press as it fills carb , push chain brake forward (on) ` place left hand on top of saw and right hand on start cord , hold saw down firmly and pull cord vigorsly several times till it sort of starts (sound) , squeeze trigger in and pull cord once more , saw should take off running , chain wont move ,walk to wood pile then disengage the chain brake and cut wood , if saw fails to start after this procedure then there must be a fault in saw , consult a exp small engine dealer for repairs

Sep 01, 2013 | Ryobi 18-inch Electric Chainsaw Chain Saws

1 Answer

Erratic starting circular saw

Sounds to me like you have a bad cord. Clamp the saw to a workbench so that it can start and run safely without you having to hold it. Put tape or a wire tie around the trigger to hold it in. THEN plug it in. Then move the cord around, especially near where it enters the saw. If the saw starts and stops intermittently you have confirmed the bad cord. Good luck.

Mar 06, 2013 | Saws

1 Answer

My 455 rancher runs well but loses power when cutting to the point of the chain not turning at all and smoke coming from the clutch area. I have only used the saw for about 3 hours.I had an earlier problem...

All things are possible KJ;
Only an authorized dealer can determine whether the wrong clutch or clutch cover are installed (I do not mean Lowes). I suggest a trip to your local dealer any weekday between 1300 and 1500. Someone that can see and touch this saw is required IMO.

Pages 22 and 23 (Starting and Stopping) also discuss the chain brake. Did you read this in your manual? With the engine off, push the forward most handle forward did it click when the brake engages? If no, the chain brake is probably engaged. Pull it aft; did it click when it locks in the released position. Move it forward and aft a few times, make it click in each position. Was it released?

I fear the brake is engaged and you have over heated and severely abraded your clutch. The drag of the engaged brake and the chain on the log you are cutting overcame the ability if the clutch. I hope I am wrong. If this is true a local dealer can repair it but it probably will not be covered by warranty. If purchased from Lowes you will not be a priority at his facility but he should be willing to repair it. If not I suggest you contact Husqvarna here:

I am going to close this but we can continue to converse. Reply below and I will get back to you. PLEASE reply with the results of what you find. Yours and the dealers investigations. TIA and HTH

Feb 22, 2010 | Husqvarna Garden

1 Answer

Idle is off??

hi leobowdy

disassembly the carb and carefully clean it.Check the air filter,the fuel line and fuel filter,check the needle,lever,small spring and the screen filter from the carb.Check the sparkplug.
high speed H=2 turns,low speed L=2 1/2 turns,adjust T
When chain saw starts adjust H,L and T accordingly.

cheers savumihai71.

Nov 22, 2008 | Ryobi Factory Reconditioned 18" 40cc...

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