John Deere 550 C dozer dropping out of gear

Richard Neal · Dec 8, 2016

My 550 C John Deere dozer operates fine in every way but one. It randomly drops out of gear while moving - as if the clutches are activated. I thought it was the steering clutches, so I replaced them, but that did not help. Any ideas?

MSM · Dec 8, 2016

Check the shifter safety bar the next time it quits. They get some age on them and it doesn't quite get fully in the released position and when you hit a bump it shakes it just enough to drop the trans out of gear.

Richard Neal · Dec 8, 2016

(reply to post at 23:39:55 12/08/16)

Thanks so much. I will try that today.

Richard Neal · Dec 8, 2016

(reply to post at 23:39:55 12/08/16)

BTW:

I am not a very7 good mechanic. Can you please tell me where to find the shifter safety bar?

Many thanks

Richard Neal · Dec 12, 2016

(reply to post at 00:04:53 12/09/16)

I learned more today. After the dozer got warm - running about an hour - it starting moving without normal force and finally quit moving at all - either forward or backward. After letting it set for about 10 minutes, I was able to drive it to a shed. One hour later it seemed fine. Can anyone give me an idea where to start in diagnostics?

Thanks,

John Deere 550 C dozer dropping out of gear

Richard Neal

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MSM

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Richard Neal

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Richard Neal

New User

Richard Neal

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