Community Forums

distaff · 09-21-2018, 02:38 PM

My generator slide screams when it is moving in our out. The wheels bearings are seized and I need to replace them. Anyone know the specs - they should be the same on a Dynasty or Sig from the same era (2005-2008ish) since they are all Monaco S Series.

The coach is at Cummins at the moment because the stator was making a racket (needs a rebuild, sigh), but they won't replace the wheels or bearings because "its an oem part". They won't touch the slide mechanism (or anything that isn't Cummins). Guess they aren't actual mechanics, but that is a separate gripe.

While the generator is out is the time to do it so if since Cummins won't, I'll grab the coach on Monday and do it while they wait for the parts to fix the stator.

Captjake1 · 09-21-2018, 03:08 PM

Mine screamed and I traced it to a cross member under the denny that it was hitting. Angle grinder for about 1/8" and all good.
I traced the bearing to a place back east, I no longer have the info.

CountryB · 09-21-2018, 03:34 PM

I don't know the size you need - but you can probably find it here (just measure outside diameter, inside diameter, and width of the rollers you have).

https://www.mcmaster.com/track-rollers

distaff · 09-21-2018, 04:09 PM

Mike - looks like a good source. May have to wait till Monday and get the motorhome (put the front cowl on) and bring it home to take it apart.

John - I know it isn't a rub, I've been under it when it was going in and out.

8.3Oilbuner · 09-21-2018, 05:23 PM

Good afternoon Paul; By any chance do the bearings that the C channel run on look like an open ball bearing with a bolt going through the middle? I had answered some questions about generator support bearings a couple of years back. Since your gen. slide is powered, mine is a manual pull out, I don't know if the bearings are the same. When I bought our first Monaco, a 2000 32' Windsor, you needed a winch to pull the slide out. Found that the ball bearings that support the generator on that C channel are not sealed. They are open to the road grime, water and etc. that is kicked up by the front wheels and splashed into the C channel. I got the gen. all the way out and you can get to almost all of those bearings except the last set or two. I first freed them up with lots of WD-40. I let them dry off and then with my fingers I worked wheel bearing grease, some of the heavy stuff, into the bearings. After that, no problems. The grease is heavy enough that water does not get into the ball bearings anymore. Sold the 2000 Windsor and bought a 2001 Windsor in 2015. Had to do the same thing. Clean up with WD-40 and work heavy wheel bearing grease into the bearings. Works great like it did on the 2000 Windsor. Of course if your support bearings are not the same as on the Windsor's, you just did some reading that will not help you. Just thought I would bring the subject up. Good luck on your repair. Also, I forgot to add that if Cummin's has the generator removed, that would make it a lot easier to replace the bearings themselves. Make sure the bearings, ball or needle, are sealed. If not, you will probably be right back to where you were in a couple of years unless you never drive in the rain, like that's going to happen! Just guessing!

distaff · 09-22-2018, 03:29 PM

I will have a go at cleaning them on Monday, then greasing them up if they start rotating.

I have a history of driving in the winter which is hell on any exposed parts.

Captjake1 · 09-22-2018, 03:41 PM

I know mine are sealed. If I recall, I took the number off of one and was able to find a supplier (though I ended up not replacing)

distaff · 09-24-2018, 02:05 PM

Well, here is what they look like - dimensions are 1 1/4 tall, 13/16 wide, and rotating on a 3/8 shaft.

Spk64 · 09-24-2018, 02:09 PM

Quote:

Originally Posted by distaff

Well, here is what they look like - dimensions are 1 1/4 tall, 13/16 wide, and rotating on a 3/8 shaft.

The dimensions match a 1-1/4" CYR Cam Follower.
https://www.motionindustries.com/pro...oaAmZYEALw_wcB

They are not cheap.

distaff · 09-24-2018, 02:11 PM

Well, one more detail - a corrosion resistant roller from McMaster-Carr in that dimension is $104. Non corrosion resistant are $24.

Ouch.

distaff · 09-24-2018, 02:54 PM

In case anyone cares it is an INA RF20PP, but you need an INA catalogue to look it up, doesn't come up on Google.

distaff · 09-24-2018, 03:03 PM

Quote:

Originally Posted by Spk64

The dimensions match a 1-1/4" CYR Cam Follower.
https://www.motionindustries.com/pro...oaAmZYEALw_wcB

They are not cheap.

Steve,

Thanks - I was on the phone with one of their guys and you were faster than he was (he was trying to find the INA part but there are none in N/A). $23.66 each Canadian, I'm getting 6 tomorrow because the front ones are harder to get at and don't seem to be binding.

Spk64 · 09-24-2018, 06:07 PM

Glad it helped. We use the CYR’s in our automated assembly equipment.

distaff · 09-24-2018, 07:58 PM

In the end it was pretty easy to undo the ram from the carriage, and the 4 bolts on the stop plates and pull the carriage out so I ordered 10. They were all corroded and seized.