stihl chain saw

  • Active since 1995, Hearth.com is THE place on the internet for free information and advice about wood stoves, pellet stoves and other energy saving equipment.

    We strive to provide opinions, articles, discussions and history related to Hearth Products and in a more general sense, energy issues.

    We promote the EFFICIENT, RESPONSIBLE, CLEAN and SAFE use of all fuels, whether renewable or fossil.
Status
Not open for further replies.
You will have to take the "cog" off which is called the rim drive under that is the clutch that is most likely the problem. rim drive should be held on by a C clip and you may have to take some needle nose pliers and wiggle the drive off after the C clip is removed.
 
not to sound SA, but chain brake?
might also be an additional brake lever on top of the handle. the later larger saws have that option.
else, the clutch has issues.
 
You dont sound like a SA thats what these forums are for. More than one perspective. Good point on the chain brake.
 
If it is the chain brake then its on that's why the chain isnt spinning, Sometimes you have to move the black hand guard forward and backward till you here a click and you will feel it slide up a little farther. Pull the hand guard back and push it forward with a little bit of force this should disengage the brake.
MMaul
 
Take off the chain housing. what do you see is it an internal clutch where all you see is a gear or is it an external clutch where you see a nut and a round piece with springs?
 
nope, but murphys law.

been there, done that.
Hold a hand or rag over them when popping off.
Piston pin clips and broken rings also: stuff a rag in the crankcase as you ease the cylinder up before removing it totally.

After 3 bankings that would do a pool shark proud, look for it in a place where it would do the most damage: down the open carb throat of a motorcycle engine, wedged between the primary gear and clutch hub of another mc engine on the bench, or into an electrical box..... :), then :(

k
 
Note that many saw manuals warn against starting the saw w/o having a bar and chain in place - allegedly without the B&C;the engine can over rev and cause serious mechanical damage - including exploding the clutch w/ subsequent shrapnel exposure to the operator.

The first check I would suggest (though it sounds like I'm too late) is to try moving the chain around the bar by (gloved) hand - if it doesn't move easily, check the chain tension; if it doesn't move at all, check the brake to make sure it's releasing. Normally the brake is pulled towards the top handle to release, or pushed towards the bar to engage - if it doesn't work properly, I would not use the saw until it's fixed.

If you can move the chain by hand, but the engine doesn't move it, that points to an almost certain clutch problem, or possibly an assembly issue.

Gooserider
 
Status
Not open for further replies.