GASKET KIT--VALVE GRINDING 5P1989 - Caterpillar

Illustration 1 g01880153
Location of the (IQAN-MDL) moduleThe IQAN computer monitors the machine systems. The IQAN computer controls the travel system and the implement functions of the machine. The IQAN receives electrical signals from the sensors, the switches, the potentiometers, the travel pedals, the joysticks, and the engine control (ADEM). The IQAN processes the electrical input signals. The IQAN then outputs the signals to the solenoids, the engine control (ADEM), the warning system, and the monitoring system.The settings for the IQAN are stored in memory. The IQAN controls the hydraulic functions of the implement control valve, the travel valve, and the leveling valve. The IQAN sends the desired engine speed to the engine control (ADEM). The parameters for the warning system are also controlled by the IQAN. If any of the pressure sensors, sending units for temperature or the engine control (ADEM) detect a reading which is out of the machine specifications, the IQAN activates the warning light, and the fault is displayed on the IQAN-MDL monitor.The IQAN Monitoring and Control System monitors the following functions:
Engine speed
Machine speed
Implement return filter
Hydraulic oil temperature and engine coolant temperature
Gear positions
System VoltagesReferenceSystems Operation, "IQAN MDL Monitoring and Control System"