ADAPTER PLATE 9U6757 - Caterpillar

Operational Information
THE OIL COOLER CONTROL/MONITOR SYSTEM PROVIDES MONITORING INFORMATION FOR THE REAR POWERTRAIN COOLING AND FILTRATION SYSTEM, AND CONTROLS A HIGH SPEED FAN BASED ON THE MONITORING INPUTS.
THERE ARE FOUR INPUTS TO THE CONTROL ON EMS TRUCKS AND THREE INPUTS TO THE CONTROL ON VIMS TRUCKS. THE INPUTS ARE: DIFFERENTIAL OIL TEMPERATURE (ON VIMS TRUCKS THIS IS ALREADY INSTALLED AND IS OBTAINED OVER THE DATA LINK), COOLER/ FILTRATION PUMP OUTLET PRESSURE, REAR DIFFERENTIAL OIL LEVEL, AND REAR POWERTRAIN FILTER PLUG SWITCH.
ON VIMS TRUCKS, THE CONTROL SUPPLIES THIS DATA TO VIMS FOR DISPLAY, WHILE ON EMS TRUCKS, THE MONITOR PROVIDES VISUAL OUTPUT FOR:
1. HIGH DIFFERENTIAL OIL TEMPERATURE - - ACTIVATED WHEN DIFF TEMP > 124 DEG C DEACTIVATED 2. VERY HIGH DIFFERENTIAL OIL TEMPERATURE (STOP SYMBOL) - -ACTIVATED WHEN DIFF TEMP > 135 DEG C DEACTIVATED 3. FILTER PLUGGED - - ACTIVATED WHEN DIFF TEMP > 60 DEG C AND FILTER SW OPEN > APPROX 20 SEC4. LOW PUMP PRESSURE - - ACTIVATED WHEN PUMP PRESS 24KPH5. HIGH PUMP PRESSURE - - ACTIVATED WHEN PUMP PRESS > 100PSI AND GROUND SPD 6. FAN LOW DRIVER FAILURE/SHORT7. FAN HI DRIVER FAILURE/SHORT8. SYSTEM VOLTAGE LOW - - ACTIVATED WHEN SYSTEM VOLTAGE 9. LOW DIFFERENTIAL OIL LEVEL - - ACTIVATED WHEN LEVEL SW OPEN FOR > APPROX 20 SEC ON STARTUP OR BED RAISETHE DIGITAL DISPLAY DEFAULTS TO DIFFERENTIAL OIL TEMPERATURE. THE DISPLAY CAN BE TOGGLED USING THE OPERATOR MODE SWITCH TO OBTAIN PUMP OUTLET PRESSURE AND TOTAL FAN RUNNING HOURS. THIS OPERATION, AND SERVICING IS IDENTICAL TO THAT DESCRIBED IN SENR6717.
THE CONTROL/MONITOR DIFFERS FROM THE SENR6717 OPERATION IN THE AREA OF OPERATOR ALARMS. THE TWO OUTPUT DRIVERS ON THE CONTROL ARE USED TO DRIVE TWO RELAYS. THE FAN LOW RELAY PROVIDES POWER TO A DROPPING RESISTOR WHICH IS CONNECTED TO THE MOTOR. THE FAN HI RELAY PROVIDES POWER DIRECTLY TO THE MOTOR. THE FAN WILL OPERATE AT APPROXIMATELY SPEED AT LOW SPEED, AND FROM 1600-2300 RPM AT HIGH SPEED DEPENDING ON SYSTEM VOLTAGE.
THE FAN LOW RELAY IS TURNED ON UNDER THE FOLLOWING CONDITIONS:
1. ANY TIME FAN HI RELAY IS TURNED ON.2. FOR ONE MINUTE AFTER THE FAN HI RELAY IS TURNED OFF.3. FOR AT LEAST 5 MINUTES AFTER IT HAS BEEN TURNED ON.4. IF DIFF TEMP GREATER THAN 65 DEG C AND UNTIL DIFF TEMP FALLS BELOW 57 DEG C.THE FAN HI RELAY IS TURNED ON UNDER THE FOLLOWING CONDITIONS:
1. FOR AT LEAST 5 MINUTES AFTER IT HAS BEEN TURNED ON.2. IF MACHINE SPEED GREATER THAN 20 MPH AND DIFF TEMP GREATER THAN 65 DEG C.3. IF DIFF TEMP GREATER THAN 96 DEG C AND UNTIL DIFF TEMP FALLS BELOW 88 DEG C.BOTH RELAYS WILL BE TURNED OFF ANY TIME SYSTEM VOLTAGE FALLS BELOW 23 VDC. BOTH RELAYS WILL ALSO BE TURNED OFF WHEN THE ACTUAL GEAR IS NEUTRAL (AFTER THEY HAVE BEEN ON FOR AT LEAST 5 MINUTES)
IN GENERAL, THE ABOVE RULES SHOULD KEEP THE MOTOR ON FOR AT LEAST 5 MINUTES ANY TIME THE MOTOR COMES ON. THIS IS