1800W. The gear that pulls the chain, is worn out. THE CHAIN DOESN'T MOVE.
If it's a gas saw, the centrifugal clutch must be bad
SOURCE: Poulan chain saw. After starting, chain drive won't move
If equipped, the chain brake may be engaged. Its the lever just ahead of the fore handle. (pull back on it)
If the clutch assy. were frozen, then the chain would move all the time.
Good luck
Aduz
SOURCE: My chain saw starts but won't move the chain, and shuts off when
Make sure the chain brake is not engaged.Pull it toward the handle until it latches.Also check for sawdust under the chain sprocket cover.Adjust the chain to remove slack but make sure you can still move it by hand.
SOURCE: Ryobi 40cc chain saw, pull cord won't turn engine
If it has ball bearings in the rachet mechanism they may be sticking and need cleaning so they move freely.!
SOURCE: Chain sprocket worn out
Outboard drums (drums on the outside of the clutch) are held on by a nut or e-clip.
Inboard drums are held on by the clutch which is threaded onto the crankshaft. And there is the challange.
***NOTE all chain saw clutches have LEFT hand threads, so, rightey loosey, lefty tightey. (just backwards from everything else)
*** NOTE #2: DO NOT USE AN IMPACT GUN
this will most certainly shear the flywheel key or damage the flywheel !!!!! (after 35 years, you can ask me how I know that, LOL)
1) Use a piston stop to hold piston from moving: THIS IS A MUST !!!
Ok, so you do not have one, let's make one.
a) remove the spark plug
b) insert a piece of recoil rope into the cylinder hole, leaving a tail to remove it by. (rope, large shoe string, anything that is soft, that is aprox 1/4 to 5/16 in diameter to place into the spark plug hole to help the piston to stop it's travel by filling up the empty space. Just make sure you can remove it later)
c) secure the saw (extra set of hands may be needed) and with a suitable wrench on the clutch center, rotate the clutch to the right until piston comes to a stop. With a hammer, tap the wrench to aid in rotation. This can be very difficult, and may take several taps.
d) after removed, inspect and grease the drum bearing before re-assemlby.
e) upon re-assembly of clutch, tighten by hand only, NO hammer required. The force of the chain will tighten the clutch.
f) remove the rope, and re-install the spark plug.
I’m happy to assist further over the phone at https://www.6ya.com/expert/rolandw_c013176d62ee17ae
SOURCE: chain brake is jammed, chain will not move when cranked
Take the side cover off of the clutch area and watch while you try to move the brake. Something may be broken or out of place. If the brake band which is fitted around the clutch drum is damaged, it may be causing non-release.
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