hydrolic quit

IH CUB Lo-Boy Series - 154, 184, 185 Forum -- Questions and answers to all of your Lo-Boy related issues.

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saabaero
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Zip Code: 07834

hydrolic quit

Postby saabaero » Wed Jan 27, 2016 11:22 pm

Last time plowing snow 154 worked fine, now nothing.Valve levers move but no action or sound. Didn't look at anything yet but any advice much appreciated. Thanks in advance K

mastercraft
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Re: hydrolic quit

Postby mastercraft » Thu Jan 28, 2016 9:37 am

saabaero wrote:Last time plowing snow 154 worked fine, now nothing.Valve levers move but no action or sound. Didn't look at anything yet but any advice much appreciated. Thanks in advance K
PUMP WORKING? FLUID LEVEL UP? you could crack a line and see if it has high pressure built up indicating the pump is working.

Eugene
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Re: hydrolic quit

Postby Eugene » Thu Jan 28, 2016 10:46 am

Check the hydraulic fluid level in the differential. If low, check the engine oil level.
I have an excuse. CRS.

Jim Becker
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Re: hydrolic quit

Postby Jim Becker » Thu Jan 28, 2016 11:16 am

Has it only been exposed to much freezing weather since the last time you used it? You may have water in the bottom of the gear case that has now turned to ice.

saabaero
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Re: hydrolic quit

Postby saabaero » Thu Jan 28, 2016 10:39 pm

Will post findings. Quick response impressive. K

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John *.?-!.* cub owner
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Re: hydrolic quit

Postby John *.?-!.* cub owner » Fri Jan 29, 2016 9:58 am

Since it uses a pump very similar to a cub, don't overlook the possibility of the pump gear having come off the shaft. Since it uses hoses it is much easier to check on a numbered loboy than on a standard cub.
If you are not part of the solution,
you are part of the problem!!!

saabaero
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Zip Code: 07834

Re: hydrolic quit

Postby saabaero » Mon Feb 22, 2016 9:51 am

OK. Put tractor in garage for week. Now it works leaning toward water in Rear. How could it get in other than condensation. Thanks K

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gitractorman
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Re: hydrolic quit

Postby gitractorman » Mon Feb 22, 2016 12:08 pm

It can only get in from condensation, but it's amazing how quickly water accumulates in the hydraulic system. All of the cast iron gearbox and pieces really sweat a lot from hot/cold weather changes, and it adds up quickly. Also, most people do not service the transmission unless there is a problem. I've worked on MANY Cub Cadets and Lo Boy tractors that have never had the transmission serviced, even after 30 or 40 years.

You'll have to pickup a new rear differential gasket and a hydraulic filter prior to tackling the project. Pull the rear cover plate off and let it drain really good. You might even put some diesel fuel in a squirt bottle, or if you're really anal like me, use brake cleaner or acetone to spray out the inside of the gear box and wipe it out. It will have some nasty sludge in the bottom, so make sure to get that all out. Next, install a new differential cover gasket and new hydraulic filter, and fill her up with HyTran to the fill hole on the back of the differential cover. I like to use Permatex Hi-Tac on the differential gasket because I HATE oil leaks, and don't mind scraping or grinding gasket material off in the future. The differential acts as the hydraulic reservoir, so the level will go down once you start and run the tractor a bit, until all the air is worked out of the system. You'll have to run it and cycle the hydraulics up/down a bunch to work out all the air, then re-check and re-fill the gear differential again.

Make sure to use HyTran hydraulic fluid from Case/IH or Cub Cadet. There are a few other replacements, but honestly, the real HyTran is excellent oil and is what is supposed to be in the tractor.

The tractor really should only need this service maybe every 5 years or so, but it's completely dependent on usage. Like I said before, I've seen lots of tractors that have never been serviced because they still had the original IH filters on them (which stopped being produced in 1980).

Good luck and ask away if you need any help.
Bill
Cub Cadets 682, 1811, 1864, Simplicity Legacy XL 4x4 Diesel with FEL, 60" mower, 50" Tiller

saabaero
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Joined: Wed Jan 27, 2016 11:06 pm
Zip Code: 07834

Re: hydrolic quit

Postby saabaero » Tue Feb 23, 2016 8:15 pm

Once again thanks for impressive reply. More questions to follow. K


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