a question about 4S blade bushing replacement

Remove the inner cross tube support. That will expose a round two bolt flange retainer that once removed allows the cross shaft to slide out. Expect the cross shaft to be well worn on the outboard side. Seems Cat used a butter brinnel hardness shaft for this application.

is the inner cross tube support bolted to the track frame via a threaded bar?

I would assume there is a nut plate in there but I haven't been inside to check. They are definitely not individual bolts and nuts. They are the same tapered head (wheel bolt) type as used for the trunion mounts. Why do you ask?

If i remember correctly you have to remove bolts that hold the support to the track frame, i left one bolt in so i could pivot the support out of the way of the end of the shaft to get to the keeper plate. The inboard bearings on mine were hardly worn.
there was no evidence of outboard bearings (bushings)-so installed 2 new outboard bearings,built up the shaft in that area and also installed 2 new seals
be prepared for a lot of grease when you remove that shaft---took 132 pumps of my grease gun to refill![attachment=44673]D4 blade 002.jpg[/attachment]

I would assume there is a nut plate in there but I haven't been inside to check. They are definitely not individual bolts and nuts. They are the same tapered head (wheel bolt) type as used for the trunion mounts. Why do you ask?

[quote="dpendzic"]If i remember correctly you have to remove bolts that hold the support to the track frame, i left one bolt in so i could pivot the support out of the way of the end of the shaft to get to the keeper plate. The inboard bearings on mine were hardly worn.
there was no evidence of outboard bearings (bushings)-so installed 2 new outboard bearings,built up the shaft in that area and also installed 2 new seals
be prepared for a lot of grease when you remove that shaft---took 132 pumps of my grease gun to refill![/quote]


were the bolts in the track frame seized? did you soak them with penetrate first and if you did how did you get it inside the track frame? did you use an impact wrench to get the bolts loose?😮hwell:

yes--some were seized---soak them for a week from the outside with kroil oil and beat on the heads to get the oil to penetrate. big breaker bar with a pipe--snapped one off but since it wasn't on the edge of the bracket and had less stress than the edge ones i just left it--can't remember if there were 3 or 4 bolts