Bushing 3008 friction disc

[RDP]

I have a later model bushhog 3008 8 foot 3 point rotary cutter that is giving problems The rubber disc between the gear boxes seem to start coming apart. I am on the third set in 2 years. I run the pto at 540 rpm. The new discs have less than 5 hours of use. I replaced the bolts,nuts and special washers,torqued at 50 ft. Lbs. Anyone have an idea for a solution?

 

[RickB]

Gearboxes timed properly when you replace the discs?

 

[RDP]

I thought so. If are off a little,is this the cause?

 

[RickB]

IDK. Honestly I have not heard of anyone having your problem. And I have been around a few 3008 cutters. If the timing was off and cut crop was slugging where the blades run close I wonder if that could be hard on the discs.

 

[RDP]

The cuts are clean. I’m cutting mostly weeds like Johnson grass and iron weeds.

 

[RickB]

Are you using genuine Bush Hog discs or aftermarket? I am not sure what difference that makes, I have sold a bunch of the aftermarket discs and never had a complaint.
I am quite puzzled by your problem. Are the shafts misaligned?

 

[RDP]

Aftermarket from A&I. I will replace discs and the blades. Maybe it will help. If not, I will take it to a dealer for help. Thanks for the help.

 

[RickB]

Have you tried Bush Hog replacement discs?