New Holland DC 75 fault code 4141. Machine will work fine for about an hour. you can tell when it is going to throw this code it slows down and doesn't push near as well, then transmission light comes on. When fault comes up left track wont go in reverse and right side only moves very little,put machine in neutral, Machine still drives straight ahead and can turn right or left but cant turn left sharply. Let machine sit for 4-5 hours it will work again. Hydraulic and transmission filters and new. We replaced Transmission solenoids same thing. Tested the oehms on transmission solenoids and left reverse one tested 30 and according to new holland mechanic on suppose to be 10 or less. installed new ground wire from dozer to solenoid oehms now at 10. dozer ran good for 2.5 hours on a cooler day then same code again. What should we be checking next ?
No one has any ideas ? When we clear the fault on the dash the dozer will move work again but not for long. Any ideas would be greatly appreciated.
Cooling System: Ensure the machine's cooling system is functioning correctly. Overheating can cause hydraulic and transmission issues. Fluid Levels and Quality: Verify the hydraulic and transmission fluid levels are correct and that the fluids are in good condition. Contaminated or low fluids can lead to problems. Hydraulic Pump: Check the hydraulic pump for proper operation. A failing pump can result in intermittent issues. Pressure Tests: Conduct pressure tests on the hydraulic system to identify any pressure drops or irregularities. Electrical Connections: Inspect all electrical connections and wiring harnesses for damage or corrosion. Consult a New Holland Specialist: If the problem persists, it's advisable to consult a New Holland service technician who has access to specific diagnostics tools and expertise for your machine model.
I believe that is a speed sensor code.
WE have had a new holland tech there 3 times now. I asked about a speed sensor but new holland guys are telling me thats a reverse solenoid code and all solenoids are now replaced. Cooling system for hydraulics was replaced this spring. New transmission and hydraulic filters 10 hours ago fluids all seem fine. Had a another mechanic who works with deere, cat and hitachi tell me same thing about speed sensor.