287B right track locked up

[Dustin Lonas]

I have a 287b high flow xps that the right side drive motor locked up. If the machine is reved up all the way I can make it bump forward and backwards but only a couple inches both directions. Prior to this happening it ran fine but has always been sluggish. My questions is that inside of the drive motor is their anything that will just lock it up or is it the charge pump not releasing the parking brake on that side. any help would be great. thanks

 

[ianjoub]

I'm no help, but own one and am interested in the answer in case I ever have that problem.

 

[Bls repair]

Never worked on one of these but some possibilities are breaks,control valve ,drive motor seized ,problem in planetary hub. I’m assuming that there are no visible external problems.

 

[Dustin Lonas]

Nothing external that I can find. Pulled squirrel cage off and can't find anything. If the drive motor is unhooked from all the hydraulics will it spin freely or is the break internal?

 

[ianjoub]

I just reinstalled tracks on mine. The motors would spin (both directions) even with the hydraulic lines hooked up. We used the squirrel cage and a pry bar to rotate them, machine not running at the time of course. On a side note, the machine was out of hydraulic fluid at the time, not sure if that matters.

 

[Dustin Lonas]

Thanks that helps alot. I believe I'm goanna pull the pump tomarow and open in up to see if I find anything noticable. Pulled lines and found no shavings. Hopefully the contamination stayed internal of the pump. Gotta think positive

 

[Bls repair]

Never worked on one.

 

[Dustin Lonas]

Me either. But someone put it together so I can figure out how to take it apart

 

[Dave Neubert]

Pull the drain on the planetary see if metal is in there

 

[Dustin Lonas]

We're is the drain plug at?

 

[Dave Neubert]

Look at the hub behind the sprocket [roller assy] should be on the side close to front cover

 

[Dustin Lonas]

Okay thanks. I'll take a look. Didn't get to tear it down today instead put steering box on my pickup. When it rains it pours.

 

[Dave Neubert]

It don't look like you can get the planetary separate so if there is metal parts in there you will have to buy the whole assy. with the motor 4,100.00 at Cat

 

[Dustin Lonas]

Yeah I'ma go with an aftermarket rebuild for 2600 comes with a one year warranty.

 

[Dave Neubert]

I have used them with no problems

 

[Dustin Lonas]

That's good to know. I was hopping someone would say that. I just wanna make sure it's the problem before I buy a new drive motor. Should I replace both sides or will it be okay?

 

[Dave Neubert]

Check the oil in the other side most of those planetary s use a special oil

 

[Dustin Lonas]

Okay will do.

 

[Dustin Lonas]

So an update haven't ordered a new one yet. My gauges came in and tested the charge pump and I am reading 0 at idle and 125 at full throttle. So either it's bad or I'm dumping it past something. So I guess I need to tear the other side down and see if that's the problem side. Any feed back would be great

 

[steve1108]

So an update haven't ordered a new one yet. My gauges came in and tested the charge pump and I am reading 0 at idle and 125 at full throttle. So either it's bad or I'm dumping it past something. So I guess I need to tear the other side down and see if that's the problem side. Any feed back would be great

mine did the same thng, had to replace the left hydo stat motor. works fine. might help. I have a question for you. is yours a xps. mine was broke when I bought it. now its fixed. I have no idea on how to or what toggle switches to use the hydo connections on the front. cat is no help if you could help id be great full.