D160 With a single stage 48inch snowthrower chain comes off!

[GingeNZ 1]

Hi Guy's

I have A D160 with a 48 inch snow thrower, last winter my chain kept flying off , so just replaced the 2 sprockets

and chain on this snow thrower, , Its still throwing the chain off when Im in the snow, It was light snow today as well,

Anyone have any idea on what I should do now?

Thank Ginge

[can whlvr 994]

i dont have a 48 inch from a d but my smaller one was doing that so i had to align the idlers and drive puley,and the drive was basically welded from rust,had to cut it off and put a new one on,and that meant bearings also,once i did aevery thing it doesnt jump off,but check the tension on the chain first could need another link removed

[GerryW 0]

Have you adjusted the tensioner bolt on the frame of the blower housing? I'm sure you have but the chain can get sloppy quickly.

Good luck,

[GingeNZ 1]

Thanks guy's , But have tried all of that so far, And still coming off :wh:

[dgoyette 12]

If it is only doing it under load than it would seem something is moving once a load is put on the chain. Did you check the auger shaft for wear and all bearings?

Since you replaced the sprockets already I would check for slight misalignment where they are mounted. I don't have my blower at my home and can't recall if the chain is exposed enough to be able to use a timing light to check for wobble. It can be helpful.

Sorry I can't be more helpful, I know the frustration you are feeling, been there. Good luck.

[can whlvr 994]

another thing it could be is a worn main sprocket on the auger,do you have the gaurd on in front of the chain