PISTON AS 1362369 - Caterpillar

System Operation Description:Note: The electronic control module is connected.
Table 1
Sensor Voltage Specifications (1)
Sensor Dynamic Test
100-3055 Temperature Sensor And 131-0427 Temperature Sensor
Temperature Signal Voltage(2) Duty Cycle
−40 to 20°C (−40 to −4°F) 1.0 to 1.1 DCV 10 to 11%
−20 to 0°C (−4 to 32°F) 1.1 to 1.4 DCV 11 to 15%
0 to 20°C (32 to 68°F) 1.4 to 2.0 DCV 15 to 23%
20 to 40°C (68 to 104°F) 2.0 to 3.1 DCV 23 to 37%
40 to 60°C (104 to 140°F) 3.1 to 4.5 DCV 37 to 55%
60 to 80°C (140 to 176°F) 4.5 to 5.7 DCV 55 to 71%
80 to 100°C (176 to 212°F) 5.7 to 6.6 DCV 71 to 82%
100 to 120°C (212 to 248°F) 6.6 to 7.2 DCV 82 to 89%
120 to 140°C (248 to 275°F) 7.2 to 7.4 DCV 89 to 93%
(1) If you desire, use these specifications with the following procedure.
(2) The voltages that are listed in this table are guidelines for troubleshooting. The values should not be considered to be exact. The tolerance for these measurements is 10 percent. The proper operation of the sensor is more important. The output voltage of the sensor should change smoothly when the temperature changes.
Table 2
Sensor Voltage Specifications (1)
Sensor Dynamic Test
3E-5370 Temperature Sensor Group And 131-0784 Temperature Sensor
Temperature Signal Voltage(2) Duty Cycle
−40 to 20°C (−40 to −4°F) 0.8 to 1.5 DCV 4 to 11%
−20 to 0°C (−4 to 32°F) 1.5 to 2.5 DCV 11 to 22%
0 to 20°C (32 to 68°F) 2.5 to 3.7 DCV 22 to 34%
20 to 40°C (68 to 104°F) 3.7 to 4.8 DCV 34 to 46%
40 to 60°C (104 to 140°F) 4.8 to 6.0 DCV 46 to 59%
60 to 80°C (140 to 176°F) 6.0 to 7.2 DCV 59 to 71%
80 to 100°C (176 to 212°F) 7.2 to 8.1 DCV 71 to 81%
100 to 120°C (212 to 248°F) 8.1 to 8.8 DCV 81 to 87%
120 to 140°C (248 to 275°F) 8.8 to 9.2 DCV 87 to 92%
(1) If you desire, use these specifications with the following procedure.
(2) The voltages that are listed in this table are guidelines for troubleshooting. The values should not be considered to be exact. The tolerance for these measurements is 10 percent. The proper operation of the sensor is more important. The output voltage of the sensor should change smoothly when the temperature changes. To use the following procedure, it is necessary to know the connector contact of the main display module and the contact that corresponds to the service code. See the Electrical System Schematic in the Service Manual for the machine in order to determine the proper connector contact of the main display module. Use the 7X-1710 Cable Probe on the connector contact of the sensor signal wire on the main display module.Note: The sensors are provided power from the main display module . Therefore, the main display module must be connected in order for the sensors to function.Two items are checked in this test:
A sensor signal is present at the main display module.
For an increase and/or a decrease in the