Bobcat 763f 4in1 creeps open

[TheNugget]

Hey guys, looking for some help please. My 763F s/n 512244140 4in1 bucket creeps open a little with the engine running. It also opens fully when smudging in reverse. It will also creep with the engine off. I'm not that mechanically minded so I would love to get a bit of an idea as I can't afford to throw to many dollars at the machine. It has done 3700hrs. I am trying to use a smudge bar but it requires constantly closing the bucket to stop it falling out

 

[mrbb]

just asking, what sized grapple bucket is on the machine, could it be too large, and require more pressure than your system makes?, I'm no expert, but I would gather a , say a 72 inch bucket takes more than a 50 inch bucket and so on as an example? so size of bucket could be a possible issue here maybe?or food for thought!

 

[brdgbldr]

Hey guys, looking for some help please. My 763F s/n 512244140 4in1 bucket creeps open a little with the engine running. It also opens fully when smudging in reverse. It will also creep with the engine off. I'm not that mechanically minded so I would love to get a bit of an idea as I can't afford to throw to many dollars at the machine. It has done 3700hrs. I am trying to use a smudge bar but it requires constantly closing the bucket to stop it falling out

It sounds like you may have a leak in the control valve or possibly a stuck valve.

 

[TheNugget]

Problem solved, it appears that the auxiliary relief valve was getting 12volts whilst the Engine is running. Unplugged it and the problem is gone. It was retired with a new ignition just before I purchased it so I assume that may have something to do with it?