transmission oil temp gauge install

• 2022-11-05

1. The transmission oil temperature sensor is located on the valve plate in the automatic transmission oil pan. It is used to detect the temperature of the automatic transmission hydraulic oil as an electronic control unit for shift control, oil pressure control and locking.

2. There is a negative temperature coefficient semiconductor thermistor inside the transmission oil temperature sensor. The higher the temperature, the lower the resistance.

3. The characteristic curve of resistance variation with temperature is shown in the characteristic of negative temperature coefficient in the coolant temperature sensor.

4. The computer measures the temperature of hydraulic oil according to the change of hydraulic oil resistance of automatic transmission.

5. The damage of the transmission oil temperature sensor includes: automatic gear shifting, random gear shifting, error code reporting, high oil temperature display. Therefore, when this problem occurs, timely maintenance is required.

Insulating oil treatment:

The transmission oil temperature sensor is installed on the valve plate in the automatic transmission oil pan, which is used to detect the temperature of the hydraulic oil in the automatic transmission, and is used as an electronic control unit for gear shifting control, oil pressure control and locking. After the oil storage tank is transported to the site, the residual oil in the tank shall be drained, and then checked to ensure that it is clean before oil storage to prevent pollution of insulation. and it can only be injected into the transformer after passing the test. Inspection, leakage test and cleaning of radiator:

1) Inspection: each part of the appearance shall be free of paint peeling, loose or deformed fasteners, damage, etc. The fan submersible pump and oil flow relay shall rotate flexibly without jamming, the insulation resistance of the motor winding shall not be less than 10M, and there shall be no abnormal noise, vibration and overheating during the power on test run, otherwise, the causes shall be found out and handled.

2) Leakage test: conduct sealing test with air pressure or oil pressure according to the pressure value specified by the manufacturer (if not specified by the manufacturer, conduct the test with a pressure of 0.25MPa), and there shall be no leakage for 30min.

3) Cleaning: open the upper and lower oil cavities of the radiator, and check the oil cavity and the interior of the radiator tube.