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Old 10-02-2011, 04:48 PM   post #1 of 6
road_thing
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Default TC 30 with a hyydraulic issue

New member here, I've got a 6 year old NH TC30 that just started up with a strange hydraulic issue. My front end loader is misbehaving--the raise/lower functions fine, but the tilt down function doesn't seem to be working. It tilts up OK, but when I move the lever to the right, it seems to only tilt down under its own weight. And when I move the lever all the way to the right, as if to dump the bucket, it tilts up!

Fluid level is OK. I just recently knocked the rubber coupler on the suction tube loose and lost most of my fluid, so I know it's fresh because I just replaced it. As an aside, I can't believe what that little 3-inch piece of rubber hose cost--$40!

The 3-point lift works OK.

Any ideas on what's going on? I'm a decent shade-tree mechanic, but my knowledge of hydraulics is lacking. This tractor is the first piece of powered hydraulic wquipment I've owned.

Thanks!

rt
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Old 10-02-2011, 09:38 PM   post #2 of 6
Volfandt
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Default Re: TC 30 with a hyydraulic issue

Welcome aboard road thing..
my 1st swag would be to double/triple check the hydraulic couplers on your FEL and make sure they're seated properly. I've seen many the time where a coupler looked like it was connected properly only to end up not. Fully disconnect them then reconnect and try it.

2nd swag would be that the hydraulic valve may have gotten some moisture/contaminate in it and has caused a check valve to stick. I'm not familure w/your model but most can be somewhat easily disasembled and cleaned. Just be VERY careful of the springs and check ball(s).

3rd swag woiuld be some contamnation has plugged the line. This is unlikel;y but a possibility.

Swag 1 is the most common. The connector itself could also be bad as I've seen that quite a bit also. Swags 2 and 3 aren't as common and I'd make sure swag 1 is totally ruled out before I escalated.
Good luck and let us know.
Dave
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Old 10-03-2011, 05:58 PM   post #3 of 6
road_thing
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Default Re: TC 30 with a hyydraulic issue

Dave: Your SWAG #1 was correct--the bottom coupler on the inside (the one I couldn't see until I disconnected all the other ones!) was loose. My dumpage is back to normal...

Thank you sir!

rt
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Old 10-04-2011, 07:37 PM   post #4 of 6
Volfandt
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Default Re: TC 30 with a hyydraulic issue

good deal
Dave
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2004 Kubota BX23 w/60" MMM, Thumb, AM/FM/CD.
http://www.mytractorforum.com/showth...highlight=BX23,

1966 Wheel Horse 856, Gear.
1966 Wheel Horse 876, HST.
w/50" sicklebar mower, 36" rotary mower, snow blade, alternator/welder.
http://mytractorforum.com/showthread...hlight=856,876

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Old 10-04-2011, 08:50 PM   post #5 of 6
road_thing
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Default Re: TC 30 with a hyydraulic issue

Not long after I got back to work with it, one of the FEL hydraulic lines blew. Third one this summer, so I went to town and got a hand full of spare lines, plus a new filter and a couple of buckets of hydraulic oil. I replaced the blown line and, sure enough, one of the other original lines sprung a leak. I replaced all the old lines and the filter, drained and flushed the fluid and gave it a fresh charge of new hydraulic oil. After a half hour or so of groaning and shaking from the hydraulic pump, it's now working as smoothly and quietly as new.

Thanks again for the help!

rt
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Old 10-04-2011, 10:11 PM   post #6 of 6
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Default Re: TC 30 with a hyydraulic issue

Seems it doesn't matter the manufacturer, 5 - 7 yrs is about all we can get out of those OEM lines. I'm living on borrowed time myself
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http://www.mytractorforum.com/showth...highlight=BX23,

1966 Wheel Horse 856, Gear.
1966 Wheel Horse 876, HST.
w/50" sicklebar mower, 36" rotary mower, snow blade, alternator/welder.
http://mytractorforum.com/showthread...hlight=856,876

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