So since now both sides of the cylinder are "pressurized", the air pocket can not develop, eliminating the "floppy" bucket syndrome. But how will that work you might ask? Well, because there is more volume on the side of the cylinder that extends it since the rod is taking up space in the other side, it "overpowers" the rod side and lets the cylinder extend-thereby dumping the bucket. Regen solves this problem by actually filling both sides of the cylinder at the same time with hydraulic fluid. So we add "regen" or "regenerative" function to the valve. The reason it is nice to have is that without it, the weight of a filled bucket can actually "pull" the bucket down faster then the fluid can enter the other side of the cylinder, this will create a air pocket and give the bucket a "floppy" feeling until the joystick is held in the dump mode a few seconds to refill the cylinder pushing the air past the seals. Regen is a "feature" of most modern FEL ( Front End Loader) valves, it's on the Dump (joystick far right) circuit, and is also referred to as "Fast Dump". Also, with valves closed, when the bucket lever is pushed forward (dumping), the rods will still extend. With the valves closed, thus blocking the fluid within the cylinders, the bucket still collapses. I have also installed a shut off valve at the barrel end of the cylinders. I have had the bucket cylinders checked at a local shop and they tell me that the cylinders are fine and that the packing looks good. The bucket action on kurlling direction is fine and strong, the bucket action on dumping is rather slow. As I raise the boom, the rods extend out of the cylinders, to their original position. With the boom raised and the bucket tilted downward ( rods extended), as I lower the boom and the edge of the bucket touch's the ground and I continue to lower, the rods collapse back into the cylinders. Having a problem with the bucket cylinders collapsing, I'll try to explain. Oh, and yes, it does have diesel in it.Hopefully somebody can help me with this issue. I don't think the two issues are related but you never know. Do ya'll have any other ideas on what could be causing the grinding? Any help or ideas would be greatly appreciated. I did, however, check final drive oil level around 50 hrs previous and it was fine. I have yet to check the oil level in the inner and outer final drive due to the dozer and my tools being an hour away from each other. It sounds like it is coming from the final drive sprocket. Mainly when I am backing up, I can hear and feel a grinding in the right side track. Any help or ideas would be greatly appreciated.Ģnd problem: This started about 2 days ago also. I already got some new fuel filters to change out the next time I go to the dozer (1 hr away) and was wondering if there was anything else I could try or check to see if it could be something else. I am thinking that the fuel filters might be stopped up or it might be the fuel pump. I didn't try to crank that long as usually will crank right up just by bumping the switch. The engine will turn over but not crank up. The dozer got so bad, it would not move at all and then the engine shut off. Second time it done it, well, it's still out in the field. The first time it done it, it would barely pull itself back to the place where I was parking it for the night. It is losing RPMs and engine sounds like it's under a load but it isn't. Blade hydraulics (6 way) do not slow down though. Dozer works like a champ for first 30 minutes of day and then goes into "Slow Mo" mode after warming up. Hello all! I am new to the forum and relatively new to owning a 2001 JD 750C LGP dozer with around 12,780 hrs.ġst problem: Started two days ago.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |