T3HX : Hydraulic Oil Overtemperature
To avoid serious injury follow all warnings and instructions in the manual. Wear appropriate personal protective equipment.
Ensure ambient temperature is below 120°F(49°C) before using the system.
Check to see that the reservoir fan is moving. Measure voltage to fan. There should be 230VAC. If no voltage is measured, check fan wiring.
If the fan has voltage but is not moving, replace fan.
If necessary, use an air hose to blow out around the fan housings and remove any built up debris.
Verify wiring between the hydraulic oil temperature sensor and the module.
Measure resistance between pins 3 and 4 on hydraulic oil temperature cable connector. Readings vary depending on temperature, but at room temperature it should be approximately 2k to 4k Ohms. An open circuit reading indicates a possible wire break. Replace sensor.