Three-way Selector Valve Leak

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tractorfan
Posts: 73
Joined: Wed Aug 13, 2014 8:25 am
Location: Ceredigion

Three-way Selector Valve Leak

Post by tractorfan » Mon Mar 11, 2019 3:40 pm

I have an oil leak coming up the spindle when the valve's open, so I suspect the o-ring needs replacing, but will I have to drain the hydraulic oil before removing the spindle? I have a vision of the plunger flying out under pressure!

Thanks.
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ollek
Posts: 3628
Joined: Tue Apr 10, 2012 1:20 pm
Location: South West Finland

Re: Three-way Selector Valve Leak

Post by ollek » Mon Mar 11, 2019 3:53 pm

The 3-way valve is higher up than the hydraulic oil level, as you can see if you look at the tractor. It is obvious that You will get pressure at the 3-way valve only when the 3-point hitch is lifting. There is no oil pressure if the engine is switched off. However, there will be some oil in the lift cylinder and therefor it is best to lower the link completely before removing parts.

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tractorfan
Posts: 73
Joined: Wed Aug 13, 2014 8:25 am
Location: Ceredigion

Re: Three-way Selector Valve Leak

Post by tractorfan » Mon Mar 11, 2019 3:57 pm

Will do! Thank-you!

dbdgc
Posts: 4
Joined: Mon Jan 28, 2019 1:24 am
Location: New Zealand

Re: Three-way Selector Valve Leak

Post by dbdgc » Mon Mar 18, 2019 10:31 pm

I haven't much experience, but have just changed all the seals in my 3 way valve and it was very easy to do.
I took the complete unit off and there wasn't much oil that leaked while doing so.

You can change that single seal by just removing the stem and next no oil will leak out while doing so.

I got the complete seal kit for about 7 pounds (13 NZD)

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