Go BottomYanmar 2010D with Loader
 | lisacove
Join Date: Oct 2003 Posts: 2 North Carolina 
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2003-10-02 65322
I am trying to replace original hydraulic valve with us brand.
Where can I get metric adapter fittings for the the US brand?
Is there any way to connect metric lines to this valve?
Valve is HV4021.
Thanks,
Clarence
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| TomG
Join Date: Feb 2002 Posts: 5406 Upper Ottawa Valley 
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2003-10-02 65341
Clarence: Sorry I misinterpreted what you are doing this morning. Well, what I described is something owners of older farm tractors have to deal with so the description might interest some people.
The bright side of your question is that depending on the existing hookup maybe nothing special is needed. The hydraulic ports on my mid-80's Ford are all standard NPT. There's a decent chance your Yanmar is similar unless you know otherwise. My loader valve is British and is connected to the manifold with standard flex lines and fittings. The line fittings may be Whitworth thread but that's fairly standard in international use.
Where my problems would come is finding fittings for flared steel lines. These lines on my Ford are metric and metric lines take metric flares. The only fittings I'm sure work with them have metric threads. What is on my Ford in these places are fittings where one end is NPT threaded for a port and the other is a metric thread to accept the nut on the flare fitting. However, these fittings are available from my NH dealer, and JD dealers may have similar ones for their older compacts.
If any of these tractors use the same diameter metric steel lines as your Yanmar, there's a good chance NH or JD dealers could get fittings for you. I'd check a hydraulics shop first because they have catalogs of what's commonly available. They also can identify the threads if you aren't certain what they are. I do have a rule for myself though. I never take a fitting apart that's still working unless I have a new one already at home.
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