cdmccul
Well-known member
- Joined
- Jun 18, 2013
- Messages
- 504
Do all of the solenoid coils pull the screwdriver out of your hand when you test them?
The solenoid tested in the video was from the relief valve. It has 14VDC stamped on the casing. The solenoids on the control valve have tags stating 10 volts. I have not tested the 10 volt solenoids off of the machine. However 3 years ago I did when the Aux Hydraulics only worked in one direction I switched them and it did not change the problem. Then I plugged them in with the wrong wires and it still only went one direction the same way but operated with the switch in the opposite direction.sounds like you have a bad stem valve . it could be sticking or with age worn so the fluid pass threw . i found my problem and fixed it by replacing the stem valve . and the coil is rated for 10 volts max not 12 volts
I know very little about the machine. I have barely used the Auxiliary Hydraulics. I am just a guy that does lots of stuff. With that said I have some questions.Then it sounds like a bad switch to me.
I don't have one to look at, but I guess I'd try unplugging the switch in question and probe it with jumper wires. See how it operates without your switch. Maybe you can borrow a known good switch from someone? Or plug your switch into a known good machine?
I think I own your identical twin Bobcat 773G with. I have the same problem with mine. Bobcat told me 3 years ago it was the valve stems/solenoid. I replaced them, and it fixed nothing. I used it by using the work around that you used. I took it in two months ago because my lift stopped lowering. They still haven't figured that out, but they did fix the aux problem. After consulting with bobcat national office, they again replaced the valve stems (even though the local guys checked mine and determined they were good). guess what, it fixed the aux problem. I don't know if I should be happy or pissed!Took off the Backhoe yesterday and put on a 4 in one bucket. Once again Auxiliary hydraulics would not open the bucket and lift and tilt would not function without Auxiliary Hydraulics on with trigger pulled.
This morning I replaced one of the stem valves. I only purchased one. I figured if it didn't fix the issue I would take it out and switch it with the other one. Well it worked on first attempt.
Bottom line is bad stem valve.
I think I own your identical twin Bobcat 773G . I have the same problem with mine. Bobcat told me 3 years ago it was the valve stems/solenoid. I replaced them, and it fixed nothing. I used it by using the work around that you used. I took it in two months ago because my lift stopped lowering. They still haven't completely figured that out, but they did fix the aux problem. After consulting with bobcat national office, they again replaced the valve stems (even though the local guys checked mine and determined they were good). Guess what, it fixed the aux problem. I don't know if I should be happy or pissed!Took off the Backhoe yesterday and put on a 4 in one bucket. Once again Auxiliary hydraulics would not open the bucket and lift and tilt would not function without Auxiliary Hydraulics on with trigger pulled.
This morning I replaced one of the stem valves. I only purchased one. I figured if it didn't fix the issue I would take it out and switch it with the other one. Well it worked on first attempt.
Bottom line is bad stem valve.