EDGE GP-CUTTING 9R5321 - Caterpillar

to 1.97     16.2 to 21.1    
16 to 27 (60 to 80)     1.97 to 2.43     21.1 to 27.5    
27 to 38 (80 to 100)     2.43 to 3.00     27.5 to 35.6    
38 to 49 (100 to 120)     3.00 to 3.67     35.6 to 45.0    
49 to 60 (120 to 140)     3.67 to 4.35     45.0 to 54.7    
60 to 71 (140 to 160)     4.35 to 5.00     54.7 to 63.9    
71 to 82 (160 to 180)     5.00 to 5.58     63.9 to 72.0    
82 to 93 (180 to 200)     5.58 to 6.05     72.0 to 78.6    
93 to 104 (200 to 220)     6.05 to 6.42     78.6 to 83.8    
104 to 116 (220 to 240)     6.42 to 6.72     83.8 to 88.1    
116 to 125 (240 to 257)     6.72 to 6.90     88.1 to 90.6    
125 to 135 (257 to 275)     6.90 to 7.05     90.6 to 92.7    
( 1 ) The Base frequency is 370 to 550 Hz.
( 2 ) The voltages and currents are guidelines for troubleshooting. The voltages and currents are not considered exact. Tolerance is 10%.The engine coolant temperature sensor and the engine oil temperature sensor are the same Caterpillar part. The two sensors are used in different applications. The engine coolant temperature sensor and the oil temperature sensor have the same specifications. Test Procedure
Table 3
Tools Needed    
9U-7330     Multimeter
A multimeter is optional for frequency and duty cycle measurements.     1    
7X-170     Multimeter Probe Group     1    
146-4080     Digital Multimeter (with RS-232 interface)     1    This procedure requires the measurement of the frequency and duty cycle of the sensor signal. Use the 9U-7330 Digital Multimeter in order to measure the frequency and the duty cycle. In order to measure frequency, turn the rotary switch to AC volts. Then, press the "HZ" button once. In order to measure the duty cycle, turn the rotary switch to AC volts and press the "HZ" button twice.Note: The 6V-7070 Digital Multimeter does not measure the frequency or the duty cycle. However, the DC voltages are listed in the Sensor Specifications chart as an alternative to measuring the frequency and the duty cycle. The 6V-7070 Digital Multimeter can be used for measurements of the DC voltage.
Perform Initial Preparations.
Locate the suspect sensor.
Identify the sensor wires and connector contacts. See the preceding System Schematics.
DO NOT DISCONNECT ANY HARNESS CONNECTORS AT THIS TIME.
Use the 7X-1710 Multimeter Probe in order to make future measurements by inserting through the back of the harness connectors.
Check Sensor Supply Voltage.
Turn the engine control switch (ECS) to OFF/RESET. Then, turn the ECS to STOP.
Measure the sensor supply voltage at the sensor connector. Perform the measurement from contact "A" to contact "B" on the sensor connector.Expected Result: The voltage should be from 7.5 to 8.5 DCV.Results:
"OK": The voltage is from 7.5 to 8.5