Hydraulics drifting down

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jlogan
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Hydraulics drifting down

Postby jlogan » Mon May 20, 2019 10:05 pm

Hey guys I’m having a major problem with hydraulics drifting down on my 185. The mower deck won’t stay up and another I put on my 3 point drops down pretty quickly. The fluid appears to be full as it’s coming out the plug in the back when it’s removed. I can’t find any hydraulic fluid leaks anywhere and I’ve had all the sheet metal off. Where is a good place to start trying to figure out why I’m not holding pressure?

BigBill
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Re: Hydraulics drifting down

Postby BigBill » Tue May 21, 2019 12:45 am

It’s your diverted valve it needs o rings. Mine is doing the same thing. It takes 9/16” square O-rings.
I'm technically misunderstood at times i guess its been this way my whole life so why should it change now.

Eugene
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Re: Hydraulics drifting down

Postby Eugene » Tue May 21, 2019 2:54 pm

BigBill is most likely correct, diverter valve if the tractor is equipped with one or more.

This is a might as well, once you have the valve out and apart, replace the seals.

Second thought, control valve. Another might as well situation.

Check your parts manual, should provide a good indication of the parts numbers including a description of the seals. Having said that, my 154's hydraulic system is sort of similar to what's in the parts manual.
I have an excuse. CRS.

BigBill
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Re: Hydraulics drifting down

Postby BigBill » Tue May 21, 2019 7:04 pm

I think I purchased the 9/16” square o rings on eBay. There affordable but 100 per package,
I'm technically misunderstood at times i guess its been this way my whole life so why should it change now.

jlogan
Posts: 13
Joined: Tue Mar 12, 2019 10:41 pm
Zip Code: 37122

Re: Hydraulics drifting down

Postby jlogan » Wed May 22, 2019 1:41 pm

Where is the valve located? I’m not sure that I have one. I don’t have to turn anything to switch between the deck and 3 point. I just pull the handle and one raises all the way up then the other will start to move. New to the Lo boy world so pardon my ignorance.

Eugene
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Re: Hydraulics drifting down

Postby Eugene » Wed May 22, 2019 2:09 pm

Some tractors did not have the diverter valve(s). The diverter valves(s) would be located on the flat panel, under the dash and between the operators calves. The diverter valves operates by lifting or depressing a knob.

No diverter valve(s) then the control valve is suspect.
Eugene wrote:Check your parts manual, should provide a good indication of the parts numbers including a description of the seals. Having said that, my 154's hydraulic system is sort of similar to what's in the parts manual.
The operator's manual, hydraulics section, has methods of locking out either the 3 point or mid mounted hydraulic cylinder so that you only operate one system at a time.
I have an excuse. CRS.

jlogan
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Zip Code: 37122

Re: Hydraulics drifting down

Postby jlogan » Wed May 22, 2019 2:13 pm

Thanks! I will check it out!

Ronnie
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Re: Hydraulics drifting down

Postby Ronnie » Fri Jun 21, 2019 12:06 am

Hello all, I am new to this forum and am still getting the hang of it so please bare with me. My IH cub 154 is also experiencing hydraulic drift in both the deck cylinder and the three point hitch cylinder. I do have a diverter valve on my particular tractor so are you saying that the bad o rings in the valve are causing the drift? Even if I can still switch between the cylinders and raise/lower them? Thanks for your help!

BigBill
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Re: Hydraulics drifting down

Postby BigBill » Sun Jun 23, 2019 4:35 pm

If you have a 3pt hitch and the mid mower hydraulics you have a diveter valve.
I'm technically misunderstood at times i guess its been this way my whole life so why should it change now.

outdoors4evr
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Re: Hydraulics drifting down

Postby outdoors4evr » Mon Jun 24, 2019 10:11 am

The diverter valves were an option. Without ordering the diverter valve option, there was a TEE put in place from the factory.
Diverter valves can be added (and are a wonderful addition)
184 w/ Creeper & 3-Point
IH 3160a Mower
IH Model 15 Tiller
IH-54 Blade

wrink3
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Re: Hydraulics drifting down

Postby wrink3 » Mon Jun 24, 2019 11:16 am

I don't have a diverter--although I have considered putting on. My TEE and the lock-outs have never leaked though! I use my 184 for small odd jobs and use the 3-pt and don't have a belly mower or front blade, if I did I would probably go ahead with adding the valve. When I mow with the tractor I pull a Swisher roughcut44.

outdoors4evr
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Tractors Owned: 184
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Re: Hydraulics drifting down

Postby outdoors4evr » Tue Jun 25, 2019 6:44 am

Adding a diverter won't fix the drift down issue. You will need new seals in your Hydraulic Valve.
Not sure who put together this PDF, but the pictures tell the story.


As for the Hydraulic Selector Valve, this one is a decent replacement. You will need to create a bracket to support the valve. Will also need a short L Shaped rubber Hydraulic Line.
https://www.surpluscenter.com/Brands/Prince-Mfg/3-8-NPT-20-GPM-Prince-Selector-Valve-9-6133.axd
Attachments
184_Hydraulic_SpoolValve.pdf
(251.61 KiB) Downloaded 26 times
184 w/ Creeper & 3-Point
IH 3160a Mower
IH Model 15 Tiller
IH-54 Blade


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