1835B Chain and sprocket question

[rusty2867]

What chains are supposed to be in my 1835B? The reason I am asking is the chains appear to be rubbing the seal in the end of the wheel motors.Is the double sprocket self aligning on the shaft? I have the wheel motor out and if I slide the sprocket onto the shaft and put a chain on it the chain sits on the motor snout. It does still have the old style milled splines on the shaft.

 

[Gearclash]

Chains are 60H. If they are hitting the motor housing there is a wear problem or a shim missing on the motor sprocket. I have seen motor sprockets wear to the point of needing replacement. I think a lot of chain and sprocket problems on these machines come from not keeping good oil in the chain case. They are prone to moisture intrusion.