awhile back I posted about problems I was having with my pto on a mf135. I've finally got into take a look. My problem originally was the ipto was "slamming" in and causing a rucus and breaking shear pins on bush hog. After opening her up I discovered the pick up screen to be plugged. I now have a few questions.
1. When spinning ipto aux pump by hand with finger over output pipe I get a squirt out by one of the gear shafts. After disassembly I see a machined grove in that shaft bore that looks like it was made to squirt some. Is this correct or are the seals on pump cover that are shaped like a "3" shot?
2. Where can I get new seals for this aux pump.
3. The regulating valve has been braze repaired by previous owner. does this simply turn out of hydraulic brake unit? and what is it's purpose. Could this be causing my pto "Slamming?
4. what is the purpose of the modulating valve? could this be the cause of my pto "slamming"?
Let me add that a pressure gauge was used before disassembly and showed 0.
thanks for any and all help. Greg
1. When spinning ipto aux pump by hand with finger over output pipe I get a squirt out by one of the gear shafts. After disassembly I see a machined grove in that shaft bore that looks like it was made to squirt some. Is this correct or are the seals on pump cover that are shaped like a "3" shot?
2. Where can I get new seals for this aux pump.
3. The regulating valve has been braze repaired by previous owner. does this simply turn out of hydraulic brake unit? and what is it's purpose. Could this be causing my pto "Slamming?
4. what is the purpose of the modulating valve? could this be the cause of my pto "slamming"?
Let me add that a pressure gauge was used before disassembly and showed 0.
thanks for any and all help. Greg
