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Old 05-15-2010, 09:44 AM   #1
twomanyprojects
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Thumbs down Help -3-pt. hitch won't lower (with load)!

Having more problems with my L225 with backhoe mounted on the 3-point hitch. I recently changed the hydraulic fluid and cleaned the filter, now the 3-point hitch will raise, but not lower. The control linkage from the lift arm to the control lever is not the problem, it just won't go down with the lever forward in the down position.

Any ideas where to go from here? The backhoe and 3PH seem to be all the way up, and nothing goes down.

Thanks

Frank
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Old 05-15-2010, 02:36 PM   #2
ipz2222
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Default Re: Help -3-pt. hitch won't lower (with load)!

On my 235, right in front of the seat is a "thumbwheel'. If that gets turned "clockwise" by repeated bumping of your foot when you're getting off the tractor, it will stop the 3 point from lowering. It actually controls how fast the 3 point drops.
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Old 05-15-2010, 03:02 PM   #3
twomanyprojects
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Default Re: Help -3-pt. hitch won't lower (with load)!

I should have mentioned that - I've tried it. It does act exactly like you had that valve in the locked position though.

Thanks
Frank
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Old 05-15-2010, 05:31 PM   #4
Eric McCarthy

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Default Re: Help -3-pt. hitch won't lower (with load)!

Could be air in the hyd system and its keeping it from going back down. Try and burb the hyd lines and see if you can get some air out of the system.
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Old 05-15-2010, 07:59 PM   #5
KubotaTech
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Default Re: Help -3-pt. hitch won't lower (with load)!

If you crack the nut on that lowering speed valve, you can bleed out the air that may be trapped in the cylinder. Back it off slowly, it could possibly spray out fluid. After it goes down, try it again and see if it is any different.
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Old 05-15-2010, 08:08 PM   #6
Bulldog
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Default Re: Help -3-pt. hitch won't lower (with load)!

Do you have the backhoe hooked up right now or is it just lift arms with nothing on them?
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Old 05-15-2010, 08:53 PM   #7
twomanyprojects
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Default Re: Help -3-pt. hitch won't lower (with load)!

It is fully loaded with the backhoe in mid-air. Lots of load to force the arms down.

I'll try bleeding the system.

Thanks

Frank
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Old 05-16-2010, 02:38 AM   #8
pat331
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Default Re: Help -3-pt. hitch won't lower (with load)!

Frank, do you have any quick disconnets? I failed to properly connect one on my L35 by not locking it in place. Everything would go one direction, but not the other. Connecting the quick disconnect properly solved my problem. Hope it is something simple.
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Old 05-16-2010, 02:39 PM   #9
twomanyprojects
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Thumbs up Problem Found! Re: Help -3-pt. hitch won't lower (with load)!

Eureka - I have found it!

The problem is in the fall speed adjuster under the seat - I had turned it many times to make sure it was open, but the valve is failing internally and was not opening. I turned it a whole lot more, and if finally opened and let the backhoe drop! Now I need to repair the fall speed adjuster valve, but at least that is easier to do.

I'm back in business, at least on that one. I'm still taking the front end loader off and taking the tractor to someone to check/replace the throw out bearing though, as I feel it is shot. (Plus I don't have the time and facilities to do it my self.)

Thanks for the help.

Frank
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