LW8 backhoe hydraulic hose o ring question

[DonRina]

Just wondering what type of o ring the hydraulic hoses take for sealing on my LW8? The description is o ring but is that true or are they some type of flat rubberized seal? Any idea of the sizes used on the backhoe and I guess the loader as well. I’m just replacing the lines outer spiral wrap as mine are all sun rotted out and it might be a lot easier to pull the lines off the valve block instead of threading it in situ. Did wrap the easier ones but lots of them are a pig to get at.

Thanks,

Don B

 

[Bob Rooks]

The O-rings for the ORFS fittings are 6 mm nitrile, although silicone would be preferred.

 

[DonRina]

I guess that’s 6mm inside diameter then? Couldn’t seem to find these listed on the Jimna part suppliers web sites. Is it possibly something a hydraulic shop would have?

 

[Bob Rooks]

I guess that’s 6mm inside diameter then? Couldn’t seem to find these listed on the Jimna part suppliers web sites. Is it possibly something a hydraulic shop would have?

I bought an O-ring set at Harbor Freight. Worked very well. You can also get them on Amazon and NAPA. But yes, a hydraulic shop might have them.

Amazon.com : 6mm o ring

Harbor Freight Tools – Quality Tools at Discount Prices Since 1977

Harbor Freight buys their top quality tools from the same factories that supply our competitors. We cut out the middleman and pass the savings to you!

www.harborfreight.com

 

[DonRina]

That’s great. I thought they were they were the NBR Metal Bonded Sealing Washer type.​

 

[Bob Rooks]

That’s great. I thought they were they were the NBR Metal Bonded Sealing Washer type.

O-ring Face Seal (ORFS) fittings do not require bonded washers. Banjo bolt fittings do.

 

[DonRina]

SLOWLY learning hydraulics. Thanks for your help. I ordered the o rings in silicon.