chain on saw will not stop spinning
#1
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chain on saw will not stop spinning
I occasionally help an elderly man with his lawn care. The other day I was going to cut some branches with his chain saw. But when I went to use it, the chain wouldn't stop unless I cut off the saw. It is a gas powered Poulan chain saw. It starts up just fine, and it does pick up speed when I pull the trigger. Its just that the chain wont stop while its on. The man asked me to fix the problem, but I cant figure it out. Is it much of a problem? Any suggestions?
#3
repair_guys suggestion is probably spot on but I can think of a couple other possibilities:
1. the idle is simply set too high so the clutch never drops below the speed required to release
2. if the saw has set for a considerable time, the clutch drum may have rusted enough to constantly rub the clutch shoes ( or other similar situation that does not allow the clutch to totally disengage such as the shoes do not retract due to a similar situation)
so, as long as the idle isn't the cause, the next step would be to remove the clutch and inspect it.
1. the idle is simply set too high so the clutch never drops below the speed required to release
2. if the saw has set for a considerable time, the clutch drum may have rusted enough to constantly rub the clutch shoes ( or other similar situation that does not allow the clutch to totally disengage such as the shoes do not retract due to a similar situation)
so, as long as the idle isn't the cause, the next step would be to remove the clutch and inspect it.