just ordered new sleeves and rollers for the rear sprocket it is the older style with the ASV setup. In order to replace them it looks like i need to pull whole assembly off and tracks because the long bolts are fed in from the back i tried pulling them out but it hits the inside on the machine. Is it possible to cut the old ones out and feed the bolt from the outside in so no track dis assembly is needed or removing the sprocket any help would be great.
If it's similar to the ASV rc30 - you can remove the two bolts that hold the rails onto the torsion axles and pull the entire rail outwards about 4" which might give you enough clearance to get the rollers off. I think the bolts might be egg shaped as well, though. Been awhile since I've worked on the 247b's.
I'm not sure if it is same or not just trying to make the job as easy as possible
Can you post a photo of what you're up against regarding these 2 long bolts..? I can probably download the D&A procedure from the manual and e-mail it to you.
Well it is for every roller the bolts are fed from the inside out, I wanted to cut them off and push the new bolt and sleeve from the inside. I can acess like 3 rollers at a time then just move themachine forward to do more
257 Most times the sprocket bearing is shot on all of them do check that if you see the flat metal style disc and you see a lotof dimples chances are the bearing is failed. When that goes it eats the shaft of the sprocket and you end up having to replace it anyway. If the bearing is not failed remove the grease and use a grease needle to put new grease in it. The rear plate should update to carriage bolts and requires a new plate that has the square holes but cant renumber on the 257s. ASV makes the special tool to remove the front idler and makes removing the track a breeze well worth the money but I built mine to beef it up some.
The bolts are assembled that way from the factory so they don't chafe on the hydraulic lines to the motor. Yes you can cut them off and replace with all new bolts out side in. Only thing is with this procedure you'll have to make da*n sure the threads protruding through the nuts don't hit said hose's. You may even have to loosen a hose on the motor and move it a tad for clearance. The cutting of the bolts will be the biggest trouble as many of the bolts will be seized in the sleeve. My advice would be to pull the whole sprocket assembly and replace the bolts, sleeve's and roller's putting the new bolts in with the nuts to the inside. (again make sure they don't hit your hose's)
Sometimes you create a bigger headache trying to work simple. It was put together a certain way for a reason(as stated), I've had mine apart and didn't find it all that big a deal.