Hydraulic Bleed out

[Scrounger]

Question on my hydraulic attachments, it seems that it only takes a few days to have the BH stabilizer or boom to drop a bit. I always thougth they would stay put as long as you didn't relieve the pressure with the controls.

Since its the boom that sags, could the weight of the boom be the issue and I have nothing to worry about.

 

[AntrimMan]

As dissapointing as it may seem, especially with new gear, the previous posts about this issue do indicate some bleed down is normal. I have given this some consideration. The greatest incident of warranty repair on machine tools that employ hydraulic and/or pnuematic systems is improperly applied teflon tape. Bits of it will dislodge and migrate everwhere in the system especially if a fitting is removed and re-inserted.
I have repeatedly told myself "its not life support equipment, get over it" and have learned to park the machine where the implements won't fall and 'lean' on something important, my wheel horse has a bit of a scrape from the first incident.

Rather than ramble on and on it could just be....because we live in an imperfect world.

Unless it interferes with safe operation, or leaves puddles, I'm afraid you have to accept it as normal.

Best of luck,
Martin

 

[AntrimMan]

Scrounger,
It's me again,
you should leave the boom on the ground when not in use. You won't walk into it and bang your head and the kiddies won't lower it onto something or worse. Just something to keep in mind.
Best of luck again,
Martin

 

[SCB]

It is a common occurance on many machines. As a bx owner myself I can say it is common on mine.

 

[Bigbear]

I'm no expert, but it has been my experience that if anything leaks off, there must be a leak somewhere. My backhoe boom will leak off if anything on the backhoe (or FEL) has a leak. It seems to me that the boom is the heavy part and puts alot of down force when at rest in the up position and forces any oil stored in that circuit to any leak it can find and thus creeps down. It does seem odd they would put pins or chains to keep them from creeping down in a perfect world. I just live with it, add oil, fix leaks I find and have a good time with the tractor and all implements. /forums/images/graemlins/grin.gif

 

[Soundguy]

I've seen some spool valves that are metal to metal.. and by nature do eventually leak down. Also.. ram piston packing may not be 100% perfect. seems like f it is days.. that is good. 3pt lift cyls are considered good if they have hangtime with the pump off of more than an hour..etc.

Soundguy

 

[MMM]

</font><font color="blue" class="small">( (or FEL) has a leak )</font>

Just to save you some head scratchin' in the future. The FEL would have nothing to do with BH leakdown. It would be at BH valve or cylinders.

If boom will stay up for days, that's excellent. Mine won't stay up for 8hrs, but still digs strong. If you want to leave boom up, attach a transport chain from boom to swing tower.

 

[Bigbear]

MMM, thanks for catching that, I stand corrected and duly spanked /forums/images/graemlins/frown.gif. I intended to convey the same could also apply to the FEL, but neglected to put into print my exact thoughts. Hydraulics 101 would indicate a leak of some sort would only affect that particular spool valve circuit. That spool valve while at rest should have no effect on the remaining system.