Why does my 2000 caterpillar 420d backhoe not go forward?
Why does my 2000 caterpillar 420d backhoe not go forward?
2000 Caterpillar 420D Backhoe loader. While driving forward unit will sometimes stop and will not go forward. I then have to drive it in reverse. After a while it does work in forward again. My experience with the solenoid valves tells me it’s not the coil because they usually just quit and that’s that.
Why is my caterpillar 420d loader not neutralizing?
Problem: With the(NNN) NNN-NNNNshifter in forward or reverse, and the neutralizer push-button switch depressed, the transmission will neutralize as expected. However, if the neutralizer switch is depressed and released very quickly, the transmission may remain in neutral, and the directional clutch solenoid may not be reenergized.
What should I do if my backhoe shifter is not working?
As an interim solution, operators should be instructed to depress and hold the neutralizer push-button switch down for 0.5 second to insure proper operation of the transmission neutralizer feature. Here is the letter on the shifter problem.
2000 Caterpillar 420D Backhoe loader. While driving forward unit will sometimes stop and will not go forward. I then have to drive it in reverse. After a while it does work in forward again. My experience with the solenoid valves tells me it’s not the coil because they usually just quit and that’s that.
What are the common problems with a backhoe?
some common problems for all backhoes are the neutralizer buttons sticking or the wire harness failing. Certain models send power through the neutralizer circuit to power the electronic shifter. It will depend on your serial number to how yours is wired. Of course, the transmission or neutralizer fuse is the first thing to look at.
Do you have the same problem as ” Cat 420 D Power Shift?
I have the same problem as “CAT 420 D POWER SHIFT transmission backhoe…rhyme” except I have a 446 Backhoe. Sometimes it will not go into gear for no apparent reason, then it will work just fine for a while.
Where are the solenoids on a cat 420?
The solenoids are installed in the transmission control valve body. The solenoids are two position-three way and are normally open to drain. When energized, the solenoid spool moves to direct pressure oil to the clutch. The transmission neutralizer switch is located on the loader control lever.
