Hello all,
Apologies in advance for being a little wordy, not being an equipment mechanic per se, I and my pivot bolt are both stuck.
I first found this subject on TBN in the 2016 JRobyn thread, which was informative, but after registering here found this thread more to the point of a jammed Pivot Assy. (taper bolt).
It would be interesting to know how the OP Igshaffer made out since I'm having the same problem with a well-used Bush Hog 2615L Flex Wing center driveshaft torque limiter.
I found that this limiter, or slip clutch, was falling apart just as my son was setting out for another 4 hour session on the pastures. I ordered a new Lining Kit and Inner Plate (which was warped), as well as new bolts and nuts because the edge of the (Brake Lining) hub's disk had literally chewed up and spit some of them out.
So, I needed to get this Brake Lining hub off of the center gearbox shaft.
I had already used PB Blaster and tapped lightly (sort of), then more PBB and moderate pounding using an old disc harrow shaft and a 3 lb. dead-blow mallet.
After heating "hotter than you would want to touch" with a propane torch yesterday, when fumes from the PBB (assuming) could be seen exiting the hub along the shaft, I kicked it up a notch. Holding a cat.1 draw bar in one hand, rested one end of it on the thread end of the bolt, I whacked it numerous times with an 8 lb. sledge hammer in my other hand. No luck.
I left it until today figuring any expansion & contraction that might serve to break it loose would have subsided.
With the requisite amount of concern, and maybe a little more, about damaging the gearbox components, I used the same method of draw bar & sledge hammer with a similar amount of concern about damaging myself.
I see no evidence whatsoever that this pivot bolt has moved at all.
Wondering if RickB or other experts here can advise. Could it be that the jam is not confined to the pivot bolt, but that the splines are jammed? This does sometimes happen for example at the PTO shaft when an implement's driveshaft has been over-torqued, and a certain amount of reverse torque has to be applied to loosen. Frankly, I don't see how this can be overcome in this case, if this is the case. Any ideas?
Thanks very much. MSJ
Apologies in advance for being a little wordy, not being an equipment mechanic per se, I and my pivot bolt are both stuck.
I first found this subject on TBN in the 2016 JRobyn thread, which was informative, but after registering here found this thread more to the point of a jammed Pivot Assy. (taper bolt).
It would be interesting to know how the OP Igshaffer made out since I'm having the same problem with a well-used Bush Hog 2615L Flex Wing center driveshaft torque limiter.
I found that this limiter, or slip clutch, was falling apart just as my son was setting out for another 4 hour session on the pastures. I ordered a new Lining Kit and Inner Plate (which was warped), as well as new bolts and nuts because the edge of the (Brake Lining) hub's disk had literally chewed up and spit some of them out.
So, I needed to get this Brake Lining hub off of the center gearbox shaft.
I had already used PB Blaster and tapped lightly (sort of), then more PBB and moderate pounding using an old disc harrow shaft and a 3 lb. dead-blow mallet.
After heating "hotter than you would want to touch" with a propane torch yesterday, when fumes from the PBB (assuming) could be seen exiting the hub along the shaft, I kicked it up a notch. Holding a cat.1 draw bar in one hand, rested one end of it on the thread end of the bolt, I whacked it numerous times with an 8 lb. sledge hammer in my other hand. No luck.
I left it until today figuring any expansion & contraction that might serve to break it loose would have subsided.
With the requisite amount of concern, and maybe a little more, about damaging the gearbox components, I used the same method of draw bar & sledge hammer with a similar amount of concern about damaging myself.
I see no evidence whatsoever that this pivot bolt has moved at all.
Wondering if RickB or other experts here can advise. Could it be that the jam is not confined to the pivot bolt, but that the splines are jammed? This does sometimes happen for example at the PTO shaft when an implement's driveshaft has been over-torqued, and a certain amount of reverse torque has to be applied to loosen. Frankly, I don't see how this can be overcome in this case, if this is the case. Any ideas?
Thanks very much. MSJ
