Kioti DK 35 FEL leaking down periodically

[PILOON]

My FEL always leaked down and I just lived with it.

BUT, I recently needed to repair the linkage for my front crankshaft driven pump.
In the process of the linkage repair I decided to replace the pump shaft seal as looked nasty plus the shaft was rusty.
I polished the shaft and installed a new seal, actually 2 using the old one as an outer 'crud stopper' as there was available space.

Following that service/repair I left the FEL in raised position as I had more service to complete.
To my surprise the FEL remained elevated overnight and later as a final test it was still elevated a week later.

While I always believed the culprit was my valves I was pleasantly surprised to learn that a $20. pump seal was the cure.

 

[LD1]

My FEL always leaked down and I just lived with it.

BUT, I recently needed to repair the linkage for my front crankshaft driven pump.
In the process of the linkage repair I decided to replace the pump shaft seal as looked nasty plus the shaft was rusty.
I polished the shaft and installed a new seal, actually 2 using the old one as an outer 'crud stopper' as there was available space.

Following that service/repair I left the FEL in raised position as I had more service to complete.
To my surprise the FEL remained elevated overnight and later as a final test it was still elevated a week later.

While I always believed the culprit was my valves I was pleasantly surprised to learn that a $20. pump seal was the cure.

NOt saying I dont believe your results. But I have no idea how a pump shaft seal has anything to do with weather a loader bleeds down or not.

 

[MechanicalGuy]

Even brand new equipment will leak down if Hydraulics are left in the air which is totally normal

My brand new Kubota MX 5200 certainly does, but my father-in-law's 15 plus year old m108s doesn't

 

[5030]

Some do, some don't. My 2002 M9 cab does. My 2004 M9 open station don't. Never paid much mind to it.