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Cat 287B Joystick Problem

 
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Old 08-11-2018, 01:33 PM   #1
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Cat 287B Joystick Problem


Just bought a 2006 Cat 287B.

Nice machine, good shape, but.....

I just got it home, and ran it for about an hour, and now the right hand joystick (bucket control) will just stop working randomly.

Machine still drives, but bucket stops working.

No lights on, like hydraulic switch off, or parking brake on.

I guessing anything from a faulty seat switch, or bar switch, to a failed relay in the ECM, or an actual problem in the joystick pilot controls.

Anyone had a similar problem?

Thanks in advance.
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Old 08-11-2018, 01:42 PM   #2
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Re: Cat 287B Joystick Problem


my guess is bad joy stick.

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Old 08-11-2018, 04:32 PM   #3
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Re: Cat 287B Joystick Problem


I wouldn't rush right out and buy a new control just yet.

My New Holland would randomly shut down the controls while climbing a steep slope, turned out to be a wire under the seat had been run under the seat bracket and the bracket had a burr on it that would stab the wire under certain conditions.

Took me a while to find that one.

A guy I know who has an asv rc60 had a control issue and decided to replace the right hand controller and it did not fix it, turned out to be one of the solenoid valves was sticking sometimes.

I am not familiar with the Cat machines as far as how they work, by wire or sub hydraulic system for the control.

"Sounds" like a wiring/electrical problem to me at this point.

Sorry, I don't have much more...
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Old 08-11-2018, 04:35 PM   #4
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Re: Cat 287B Joystick Problem


Actually, I'd say that if it works OK sometimes, that it is not the controller. My thoughts are the controller either functions, or it does not, no in between.
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Old 08-14-2018, 09:27 AM   #5
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Re: Cat 287B Joystick Problem


Think I found it.

Door switch.

It's the only safety switch that will allow the machine to track, but shut down the bucket. All others shut everything down.

I noticed the door frame is a little wobbly, and it's easy to shut it, and think it's shut all the way, but it ain't. Add a little rattling, and it stops working.

I've been running it for a couple days now, paying attention to the door being shut all the way, and so far, no problems.
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