I need to replace the dipper hoses on my backhoe. OEM hoses are no longer available. Can anyone tell me the hose size (looks like 3/8") and the JIC fitting size used on a BT900. I'm struggling to determine if the fittings are JIC -6 or -8. I believe they are -8 fitting.
L35 Bt900 backhoe hydraulic hoses
- Thread starter fatalbert
- Start date
I would take the old one off and take it to a shop that specializes in that sort of thing and let them figure it out. Good luck.
I wanted to order on-line since I would like to replace all the hoses that go under the boom cylinder and there are sources that are much cheaper than local. I know others have ordered the hoses on-line. I'm hoping one of you already figured this out and can share the knowledge. Thanks, Al.
TheOldHokie
Well-known member
Lifetime Member
Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
The thread size on JIC-6 is 9/16-18 and JIC-8 is 3/4-16. You can tell the difference with a ruler. FWIW Kubota seems to favor JIC-8 fittings on their 3/8 hoses.
Dan
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I had a local tractor mech replace all of my L35 BH hoses. He found it cheaper and quicker to source hoses locally. Good luck.
I'll get you those sizes when I get to my tractor in a little while. I replaced mine a year or so ago and got them at Messick's. I think one or both have 45's on one end. 3/8 hose, but I can't help with the length.
I ran into that problem with my TL720 loader last year and started this thread for future reference
Hydraulic Hoses TL720
It seems like more hoses are NLA for my L35's TL720 loader. My dealer said NLA (they did give me dealers that showed to have onesy-twosy's in stock!) and Messick cancelled my order, so I was left to non-OEM. My local NAPA (new owners) quoted over double OEM price, and Advance (formerly CarQuest)...
www.orangetractortalks.com
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TheOldHokie
Well-known member
Lifetime Member
Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Intersting that some are a mix of JIC 6F and JIC 8F ends. Must have to go through some small openings ???I'll get you those sizes when I get to my tractor in a little while. I replaced mine a year or so ago and got them at Messick's. I think one or both have 45's on one end. 3/8 hose, but I can't help with the length.
I ran into that problem with my TL720 loader last year and started this thread for future reference
Unfortunately, I didn't foresee the need when I was doing the backhoe workHydraulic Hoses TL720
It seems like more hoses are NLA for my L35's TL720 loader. My dealer said NLA (they did give me dealers that showed to have onesy-twosy's in stock!) and Messick cancelled my order, so I was left to non-OEM. My local NAPA (new owners) quoted over double OEM price, and Advance (formerly CarQuest)...
Dan
Thank you, I appreciate that. I ordered all the Kubota oem hoses from Messicks but they no longer can source them and canceled my order. It was a gigantic pain in the rear getting the boom cylinder pins out which is why I thought I'd replace all the hoses instead of just the leaker.I'll get you those sizes when I get to my tractor in a little while. I replaced mine a year or so ago and got them at Messick's. I think one or both have 45's on one end. 3/8 hose, but I can't help with the length.
I ran into that problem with my TL720 loader last year and started this thread for future reference
Unfortunately, I didn't foresee the need when I was doing the backhoe workHydraulic Hoses TL720
It seems like more hoses are NLA for my L35's TL720 loader. My dealer said NLA (they did give me dealers that showed to have onesy-twosy's in stock!) and Messick cancelled my order, so I was left to non-OEM. My local NAPA (new owners) quoted over double OEM price, and Advance (formerly CarQuest)...
OK, they're all #8 JIC female. The ones on the valve end are 45° - cylinder end are straight. The first one I bought, from NAPA, had an oversized nut and I had to grind out the slot in the boom a little. I think that's the one I wrestled through the boom without removing the cylinder pin. That was even a gigant-er PITA! The next time I replaced them all. You might consider repacking the boom cylinder while you're in there.
Sorry, I can't help with the length. You might consider posting what you get for future reference.
The #6's are where the short hoses from the valve join the hard lines going down the arm. They're pretty close together and the larger #8 nuts would probably hit each other. The other ends on the hard lines and on the valve are all #8.
Again, thank you for the info. I managed to find two of the hoses new on ebay for about the Kubota oem price. Messacks had one in stock. I'll have to have the others made up or get from hydraulic surplus and put together some 45 degree fittings. I had not thought about rebuilding the boom cylinder. Is that something I should be able to do with a kit? The cylinder is not leaking but karma may teach me a lesson as soon as I reinstall it. Getting the cylinder lined back up with the bucket end is going to teach me some new cuss words, I'm sure.
After the second time in there I replaced everything I could, to avoid a third time. You can repack it yourself or take it to a shop. Mainly, you need a large pipe wrench or face spanner to remove the gland, and a sturdy wrench (I used a 3/4 drive socket) to remove the piston, if you do it yourself. I bought a set of rod seal installers on eBay, but you can do without them, especially on these bigger rods.
The main thing is, to remove the cylinder, you have to fully extend the boom, swung to one side, so that the bucket is below normal ground level. I put some wood blocks under the tire on the side the boom was on to let the boom out further. You can use the stabilizer as a jack, but don't work on it without blocking it.
Yeah, getting that inner end pin back in is fun. The da_ _ cylinder is heavy. I think I used a 2x4 scrap to wedge it up 'til I could get a line-up bar in. From there, it was a piece of cake.