Kubota B7100 HST fluid leak

[Johan]

Hi everyone, I have a fluid leak from a banjo fitting on a pump, either diesel or hydraulic, not sure.
To me it smells like diesel but looks like it may be the hydraulic pump. I've attached some photos.
The banjo fitting is tight, is there a rubber seal/o-ring as well?
I'm more of an auto mechanic but have been maintaining this tractor for the past 20 years so I am familiar with it. Any advice would be greatly appreciated.

 

[Lil Foot]

Hydraulic pump.
There will be a copper crush washer on each side of the high pressure banjo fitting, and o-rings on the low pressure side.
Assuming that the HST is the same as the gear.
Just did mine, shaft seal was leaking.
You might find it is tough getting wrenches to fit the banjo bolts. (I did) (26mm & 29mm)

Here is my thread on changing the pump shaft seal, might give you some insight:

B7100 Hydraulic oil leaking into crankcase

Apparently my B7100 has developed this problem and I understand there is a shaft seal on the hydraulic pump that fails, allowing hydraulic fluid to mix with engine oil. My engine oil level keeps creeping up, and hydraulic oil is slightly down. How big a job is this repair? Anything to watch out...

www.orangetractortalks.com

 

[North Idaho Wolfman]

Pull the banjo bolt pull the 2 copper washers and replace.