michael.white
Silver Member
Hi all!
I picked up my new Danuser G20/40 at Fredericksburg Equipment. As part of double checking their questionable* work I was attempting to grease the drive shaft u-joints. For the u-joint at the PTO there was a lot of back pressure putting in the grease, i.e. squeezing the grease gun handle took a lot more pressure than a car-type u-joint. It took a fair amount of effort before I saw grease seeping out.
The u-joint at the PHD head took a little grease before it was impossible to add any more - trying to add more grease just caused the grease to be pushed out between the grease gun and the zerk fitting (the grease gun is good - I tried two different grease gun "heads" with the same effect). I even removed the zerk fitting to make sure the fitting wasn't plugged - I was able to confirm that grease was going through the fitting.
I've only worked with car and truck type u-joints where you can tell the u-joint is greased when the grease starts coming out from under the bearing cap - it's how you push gunk out of a u-joint on an off-road vehicle that's gone through a water crossing. The only time I've encountered a lot of back pressure is with old equipment. What's the expected behavior when greasing up this type of u-joint?
* As a side note I won't deal with Fredericksburg Equipment again short of an emergency - they drug the PHD along the floor when loading it (I guess throwing down a rag or piece of cardboard was too much trouble), did not grease the drive shaft sufficiently or the auger fitting at all, and ignored what I told them three times about having replaced my quick disconnect fittings with non-New Holland fittings. Next time whatever I order will be on-line.
I picked up my new Danuser G20/40 at Fredericksburg Equipment. As part of double checking their questionable* work I was attempting to grease the drive shaft u-joints. For the u-joint at the PTO there was a lot of back pressure putting in the grease, i.e. squeezing the grease gun handle took a lot more pressure than a car-type u-joint. It took a fair amount of effort before I saw grease seeping out.
The u-joint at the PHD head took a little grease before it was impossible to add any more - trying to add more grease just caused the grease to be pushed out between the grease gun and the zerk fitting (the grease gun is good - I tried two different grease gun "heads" with the same effect). I even removed the zerk fitting to make sure the fitting wasn't plugged - I was able to confirm that grease was going through the fitting.
I've only worked with car and truck type u-joints where you can tell the u-joint is greased when the grease starts coming out from under the bearing cap - it's how you push gunk out of a u-joint on an off-road vehicle that's gone through a water crossing. The only time I've encountered a lot of back pressure is with old equipment. What's the expected behavior when greasing up this type of u-joint?
* As a side note I won't deal with Fredericksburg Equipment again short of an emergency - they drug the PHD along the floor when loading it (I guess throwing down a rag or piece of cardboard was too much trouble), did not grease the drive shaft sufficiently or the auger fitting at all, and ignored what I told them three times about having replaced my quick disconnect fittings with non-New Holland fittings. Next time whatever I order will be on-line.