HT75 Pole Saw sprocket

[BroncoRN]

I picked up this HT75 for $80 in need of a new carb (jets were missing/in bad shape). Put on a new carb and it got it running! The sprocket was about dead so I got a new one and figured out how to get old one off and now I am having problems with the screw to get it back on. It is reverse threaded and there were 3-4 washers on there as well. Best I have been able to do so far is get sprocket to spin with no chain attached but as soon as any kind of resistance is added the sprocket will stop. I have tried grabbing the sprocket with vice grips but the washers still seem to spin and won't let the screw fully tighten down. Any advice?

 

[lone wolf]

I picked up this HT75 for $80 in need of a new carb (jets were missing/in bad shape). Put on a new carb and it got it running! The sprocket was about dead so I got a new one and figured out how to get old one off and now I am having problems with the screw to get it back on. It is reverse threaded and there were 3-4 washers on there as well. Best I have been able to do so far is get sprocket to spin with no chain attached but as soon as any kind of resistance is added the sprocket will stop. I have tried grabbing the sprocket with vice grips but the washers still seem to spin and won't let the screw fully tighten down. Any advice?

I dont remember if I grabbed the washers or the sprocket itself ? I used a water pump plier. I You are on the right track and missing something there. Check the order of the washers arent some of them squire inside to grip? I will see if I can find a diagram.

 

[lone wolf]

I found the PDF for an HT131 it has the same sprocket look at it and check your order. I bet one of the square inside locks aint grabbing.

 

[BroncoRN]

By inside locks do you mean the fitted washers that go on either side of the shaft? The shaft is not warn and those washers fit on there with no play.