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The output form the PTO pump goes to a Banjo fitting on the valve stack. I was thinking about purchasing a fitting from AliExpress and then using a local hydraulic shop to make the hose I need. The banjo bolt measures 21.5mm and the opening of the banjo measures 22.2mm. I assume I would need a 22mm x 1.5mm banjo fitting. Does anyone know if the fitting in the picture below would work?
70011-22-8 0Series 1/2 DIN7642 Carbon Steel M22*1.5 Over Cover Barb Metirc Banjo Hydraulic Fittings
http://www.aliexpress.com/item…..08169.html
I can't seen to get the link function to work
Thanks for the reply. Sorry about all these basic questions.
1) If I use a suction side filter do I still need a return line filter?
2) The Prince pump has SAE ports, it “includes a 1″ hosebarb adapter for inlet port, and a 3/4″ NPT adapter for outlet port.” Does this mean an NPT fitting can screw into an SAE port or do these adapter create a female NPT fitting that a male NPT hose end connects to?
3) Should I spend a few extra dollars and use JIC hoses and adapt NPT ports to JIC (for example the suction filter has NPT ports). According to Surplus Center, JIC fittings and SAE O-ring fittings are better than NPT fittings since NPT fitting create a seal through distortion and are more prone to leaking (especially if the fittings are ever disconnected and then reconnected). They don't sell pre-made SAE hoses, but they do sell pre-made JIC hoses.
You have the filter on the suction line and not the return line? Is the Prince HC-PTO-7A PTO Pump the right size for LW6?
Thanks for the reply. I would consider using the tractor hydraulics. I wasn't sure if it had enough power for the backhoe. I do have these rear ports. I've never used them so I'm sure they could be used for a backhoe. I don't know if the valves could be locked in the open position while using the backhoe as the handles in the second picture spring back to the neutral position when released.
I've been negligent as I never posted a follow up. Like usual Rich Waugh was right. One Cylinder was bypassing. One of the seals was badly mangled. Replacing the seals was a quick easy task. Thanks everyone for your help.
I have a Luzhong TC254 which is similar to a Jinma 254. I changed the 3 point mount to a subframe mount. It's held up well. I've pulled out many large stumps without a problem. I posted a thread on this forum some time back, but the complete thread is broken. It was also posted on Tractor by with the title:
An “axle-surrounding” type backhoe subframe
It may give you some ideas.
Unfortunately the link function on this site appears not to be functioning.
Len
That's interesting. My tractor has the same engine, but holds only 3.6 quarts (according to the manual and confirmed by oil changes). I also looked it up online here. See bottom left table on the second page. It states total lubricant capacity is 3.5 liters which is just over 3.6 quarts.
