Snow Mid-PTO Troubleshooting / B2782 Snow Thrower Weak Stream

[sbatzold]

I'd take a close look at the fan shear pin again and put a wrench on it or just pull hard on the fan to see if it spins. Quite sure I had something like this occur many years ago. The shear bolt was painted over therefore adhered to the shaft on both sides. It sheared but both sides looked fine. There was enough drag internally that the fan still spun up with no load but immediately would slow and stop under load.

This is where I would stay, cheaper and easier to double/triple check all shear pins first.

 

[sandyc]

Make sure the key is not warn on the chainpulley

 

[amroth]

This is where I would stay, cheaper and easier to double/triple check all shear pins first.

I did, after I read this. Everything looks good there. But thanks. I'm thinking it's got to be something simple...

 

[amroth]

Make sure the key is not warn on the chainpulley

I pulled the blower off, and tipped it up, to get at the cover. Checked that, and the double set screws. One set screw had backed off, the other was still tight.

 

[amroth]

Surplus Center, Ebay Amazon or Tractor Supply for all have them.
The only question is what adapters you will need to connect them to your tractor.

Aaron Z

Thanks, I'll take a look, if I have to get under there.

 

[sandyc]

Just a thought. When I was adjusting my skids on my blower , we’re supposed to get a bunch tonight,I looked at the the fan and wondered which of the two bolts you thought was the sheer bolt. It is not the one that passes through the shaft it is the smaller bolt that holds the joint together. Really don’t know how to explain it but look at both bolts near the shaft that connects the auger to the fan

 

[sbatzold]

I was talking to a friend the other day and he had just bought a 1 year old used blower from a guy because it didn't blow well. He got it home and looked it over and there was no shear pin in it. He said he didn't think there was one from the factory even because the hole had intact paint in it. He installed a shear pin and it was blowing snow 20' after that.

 

[Dave M7040]

Just a thought. When I was adjusting my skids on my blower , we豎*e supposed to get a bunch tonight,I looked at the the fan and wondered which of the two bolts you thought was the sheer bolt. It is not the one that passes through the shaft it is the smaller bolt that holds the joint together. Really don遞 know how to explain it but look at both bolts near the shaft that connects the auger to the fan

See attached photo

Dave M7040

 

[sandyc]

See attached photo

Dave M7040

Thanks Dave

 

[amroth]

FWIW.

I changed the HST, and Hydraulic filters, to see if it could be my problem. It is definitely working properly now. The filters, and fluid (Super UDT), were changed at 600 hours, and I've only got 772 hours on the tractor now. BUT, the filters (and fluid) are 4.5 years old. I'm going to let the filters drain down, then cut them open, to see what's inside.

Left this update for legacy. In case someone finds this in the search to cure their tractor woes.

Still be cautiously optimistic. Looking back, I should have changed these out a lot quicker to troubleshoot.

 

[sbatzold]

Makes no sense, your PTO isn't hydraulically driven. Changing fluid and filters shouldn't have effected the PTO.

 

[amroth]

My B3030 has a hydrostatic transmission.

I cut the filters open. Nothing looked bad. There wasn't any fines, or other foreign material. The HST filter's media had a gray color to it. I plan on changing the HST fluid later.

 

[moship]

Makes no sense, your PTO isn't hydraulically driven. Changing fluid and filters shouldn't have effected the PTO.

The clutch pack (multiple steel plates and clutch disks) that drives the PTO are immersed in the hydraulic fluid.

 

[moship]

I cut the filters open. Nothing looked bad. There wasn't any fines, or other foreign material. The HST filter's media had a gray color to it. I plan on changing the HST fluid later.

Could the gray color be from the clutch material?

Can you post pictures of the filter media?

 

[TimP]

So I guess we don't know how this ended?