Busted Hydraulic fitting on a B7200 with 1640A loader

[Tractare]

I was being careless and had a log roll back onto the loaders hydraulics busting a 90 degree fitting. I looked up the part and it apears to be 70050-01619 but the photos don't seem to match what I pulled off the tractor. The one from my tractor has a sealing o-ring, straight thread and a lock nut while the part in the drawing has an NPT thread. Any idea what I'm missing?

 

[Russell King]

The cylinders on your FEL may have been changed and now the port is an SAE ORB (or possibly a BSPP port thread). By the way both are in inch units, but different threads.

The simplest thing would be to take the fitting to a local hydraulic supply or repair shop and they will probably have one in stock to sell you (for less than Kubota). The dealer will probably have one in stock also so you can go there also.

I also can’t tell what the female thread is for certain but that may be female NPTF. I personally don’t like NPTF in hydraulic systems since they can require sealant. You might want to look into getting JIC swivel hose ends eventually and think about switching all the hoses and fittings out. Much easier to arrange the fittings and hoses! No leak either.

 

[TheOldHokie]

View attachment 176207
I was being careless and had a log roll back onto the loaders hydraulics busting a 90 degree fitting. I looked up the part and it apears to be 70050-01619 but the photos don't seem to match what I pulled off the tractor. The one from my tractor has a sealing o-ring, straight thread and a lock nut while the part in the drawing has an NPT thread. Any idea what I'm missing?

View attachment 176208 View attachment 176209 View attachment 176210

Thats a male SAE ORB X NPT female pipe swivel 90 degree elbow.

Pipe swivel end would be -06 (3/8") and
ORB port end is either -06 or -08. I owned a B1630 and I am pretty sure its -06 but measure the ORB straight thread to be sure:

9/16 = -06
3/4 = -08

Industry standard part number is:

6901-06-06 if 9/16
6901-08-06 if 3/4

DO NOT use thread sealant on either end of that fitting.

Dan

 

[Tractare]

The cylinders on your FEL may have been changed and now the port is an SAE ORB (or possibly a BSPP port thread). By the way both are in inch units, but different threads.

The simplest thing would be to take the fitting to a local hydraulic supply or repair shop and they will probably have one in stock to sell you (for less than Kubota). The dealer will probably have one in stock also so you can go there also.

I also can’t tell what the female thread is for certain but that may be female NPTF. I personally don’t like NPTF in hydraulic systems since they can require sealant. You might want to look into getting JIC swivel hose ends eventually and think about switching all the hoses and fittings out. Much easier to arrange the fittings and hoses! No leak either.

Thank you! I took the broken part to a local hydraulic shop and they took one look at it and sold me a new "forged" one for $7. Thanks for the advice!

 

[TheOldHokie]

Thank you! I took the broken part to a local hydraulic shop and they took one look at it and sold me a new "forged" one for $7. Thanks for the advice!

You did good.

Dan