Snow 2305 w. 47" snowblower always grinding pto

[dmfahie]

I just started using my new 2305 with my 47" jd snowblower. We had about 6" of snow on the driveway, I snowblow about 20 minutes before my 2nd stage shear bolt shears, and my mid pto grinds. I have gone through 3 today alone. I have been going slowly at full rpm's. Any advice? Thanks.

 

[lilranch2001]

I just started using my new 2305 with my 47" jd snowblower. We had about 6" of snow on the driveway, I snowblow about 20 minutes before my 2nd stage shear bolt shears, and my mid pto grinds. I have gone through 3 today alone. I have been going slowly at full rpm's. Any advice? Thanks.

Is everything greased up? Have you tried to find out where exactly the PTO is grinding?
Sounds like you may have a bad u joint in the shaft

 

[Catback]

what grade shear bolt are you using? Sounds like it isn't engaging smoothly?

 

[dmfahie]

Just picked it up from dealership, I assume it was greased. I am using the jd shear bolts. Something sounds wrong doesnt it?

 

[chevy]

I got my 47 used about 9 years ago & used it on a 455. I also broke a lot of shear bolts on the fan when I first used it. I found the the fan was to far foward on the shaft. The shaft had a slight forward to back movement. So it would sometimes work fine, but when the shaft moved forward the fan would hit the blower body & break the shear bolt.

I only remember breaking one more shear bolt on the fan since I moved it back on the shaft.

I got a 2210 after the 455. I remember on the 2210 that if I raised the front hitch to full height the pto would make a lot of noise.

Another thought might be that the grinding you are hearing is the fan rubbing in the blower body.

 

[psdx]

I just started using my new 2305 with my 47" jd snowblower. We had about 6" of snow on the driveway, I snowblow about 20 minutes before my 2nd stage shear bolt shears, and my mid pto grinds. I have gone through 3 today alone. I have been going slowly at full rpm's. Any advice? Thanks.

When you say your mid PTO grinds, could you describe that a little more? And is the snowblower new too, or just the 2305?

I would check the fan for lateral movement on the shaft and spin it around with the shear bolt out to see if you can make it contact the blower body in any way. ....also, want to make sure there's nothing laying down in the fan housing to get whipped around in there.

 

[chipsndust]

dmfahie:

I searched back to find this post from several years ago:

This is hard to describe without a picture, but I'll try.
The snowthrower driveshaft has a yoke and coupler on the end.
The mid-to-front PTO driveshaft has a yoke and coupler on each end. (You can see that the yokes on each end are oriented the same, "in phase".)
The smaller, inner end of the PTO driveshaft (the end with the spline) goes toward the front.
Both these couplers (the one on the snowthrower driveshaft and the one on the splined end of the mid-to-front PTO driveshaft) get attached to the front hitch assembly. With the engine off, if you put your mid PTO in neutral you can turn the entire drive train by hand.
Couple the snowthrower driveshaft to the hitch assembly. Couple the rear coupling of the driveshaft (the larger, outer end) to the mid PTO. Turn the driveshaft by hand until the yoke is lined up with the snowthrower yoke that is already attached to the front hitch assembly.
When you couple the front driveshaft coupling to the front hitch assembly, make sure the "knuckles" on the universals are oriented the same way as the "knuckles" on the snowthrower driveshaft.
Since everything is already coupled, standing between the snowthrower and the front of the tractor, you can see the yokes attached to the front (from the snowthrower) and the back (from the mid PTO) of the front hitch assembly. If they are not "in phase", it's probably easiest to uncouple the snowthrower, turn the shaft until it's lined up with the pto driveshaft, and recouple.

47" Snowblower Operating Manual OMM147922 J2 says (on page 6, Connecting Driveshaft) NOTE: For optimal performance, align attachment driveshaft yoke with mid-to-front PTO driveshaft yoke.
Front PTO Kit Installation Instruction Manual LVU14264 J2 says (on page 2, Install Front PTO Driveshaft) IMPORTANT: Avoid damage! The spring collars on the PTO driveshaft must lock in position on the transaxle shaft and drive assembly shaft.
And:
NOTE: This kit uses a telescoping driveshaft. The smaller, inner shaft connects to the front PTO drive assembly, the larger, outer shaft connects to the transaxle shaft.

Hope this helps. Aligning the two drive shafts eliminated the noise for me, I know others had a lot of noise, even with the shafts aligned.