To troubleshoot a New Holland tractor, you must first identify the specific problem and symptoms associated with it. Common problems with a New Holland tractor include failure to start, Hydraulic issues and faulty glow plugs. Other problems include transmission failure, a half-broken tractor frame and white smoke in the vent.
A faulty power take-off light or a blown fuse may result in the failure of the tractor to start. To fix this, repair the light and replace the fuse. A worn out filter or a defective seal can cause hydraulic fluid to leak. Replacing the filter and the seal can help to rectify this problem. A low oil level can result in an overheated hydraulic, and filling the system with proper oil can resolve this.
A faulty shaft sensor can cause the presence of hydraulic oil in the engine. Replacing the shaft sensor can solve the problem. A shorted plug or a faulty temperature sensor can lead to the failure of glow plugs. To eliminate this, test the plugs with an amp-meter to detect the shorted plug and replace the temperature sensor.
Locating and repairing the leak, then draining the fluid until the dipstick reads Full, rectifies this. A defective casting can cause the tractor frame to break in half and consulting a New Holland technician can eliminate this.