BX 23S PTO damage

lucko5

New member

Equipment
bx231
May 24, 2025
2
0
1
newton abbot
Hi all, just wondered if anyone knew what damage would be caused if when the PTO is running, the PTO brake fails on please? We have had extensive (£6000+) damage done and since they rebuilt the transmission have found the PTO brake not disengaging , so have had the transmission removed again to replace the brake (another £1000)!
could the failing of the brake of caused the damage? Rear transmission cover split with associated damage to transmission case , shafts and bearings etc.
many thanks , Steve
 

GreensvilleJay

Well-known member

Equipment
BX23-S,57 A-C D-14,58 A-C D-14, 57 A-C D-14,tiller,cults,Millcreek 25G spreader,
Apr 2, 2019
12,996
5,717
113
Greensville,Ontario,Canada
hmm... what was the PTO powering ? I've never run the PTO on my BX23S in 7+ years, would have to look at what's inside to see how the brake works. Others will know but I'm wondering how it slows down very heavy loads ( like a wood chipper or bush hog )
 

lucko5

New member

Equipment
bx231
May 24, 2025
2
0
1
newton abbot
hmm... what was the PTO powering ? I've never run the PTO on my BX23S in 7+ years, would have to look at what's inside to see how the brake works. Others will know but I'm wondering how it slows down very heavy loads ( like a wood chipper or bush hog )
Thanks for the reply. It was running a Trimax 150 mower attachment. I guy using it said it was lowered and on the ground and the PTO had been running for about 30 seconds before an almighty bang and the rear transmission cover disitigrated and spat oil ou🥺 so was just wondering if the brake failed would it instantly stop the shaft intern over stressing the out put shaft going through the transmission cover
 

Henro

Well-known member

Equipment
B2910, BX2200, KX41-2V mini Ex.
May 24, 2019
6,001
3,227
113
North of Pittsburgh PA
I’ll be interesting in hearing the replies to the question because I wasn’t aware there was a brake that serves to restrict or stop movement of the PTO shaft. Never thought much about it.

However, I do know that it’s possible to move the levers when the engine is turned off so that the mid PTO shaft is either locked in position or free to rotate by hand. It’s easier to connect the MMM when the PTO shaft rotates freely…

To the OP, what’s the chances that whoever repaired your tractor didn’t put it back together properly, and that the current problem is the result of that?
 

Bee-Positive

Well-known member

Equipment
BX1880, FEL, Tooth Bar, MMM, QH, Ballast Box
Nov 16, 2022
299
295
63
Amsterdam, NY
I wouldn't think the brake plate is the problem. If it was locked it wouldn't have allowed the PTO shaft to rotate in the first place.

Was it the first time the Trimax 150 mower attachment was ever used on that particular tractor? If so was the PTO shaft sized correctly? I'm thinking the shaft locked up and destroyed the housing.
 

Bee-Positive

Well-known member

Equipment
BX1880, FEL, Tooth Bar, MMM, QH, Ballast Box
Nov 16, 2022
299
295
63
Amsterdam, NY
I’ll be interesting in hearing the replies to the question because I wasn’t aware there was a brake that serves to restrict or stop movement of the PTO shaft. Never thought much about it.

However, I do know that it’s possible to move the levers when the engine is turned off so that the mid PTO shaft is either locked in position or free to rotate by hand. It’s easier to connect the MMM when the PTO shaft rotates freely…

To the OP, what’s the chances that whoever repaired your tractor didn’t put it back together properly, and that the current problem is the result of that?
PTO Brake Plate.jpg