M318 and M320 Excavators Machine Electronic Control System Caterpillar


Implement Activation

Usage:

M318 6ES



Illustration 1g00637624

Schematic For The Activation Of The Implement

The implement activation solenoid must be energized in order to allow the operation of the implement functions: boom, bucket, stick, stabilizer, blade and auxiliary functions. Otherwise, pilot pressure is not allowed to reach the pilot control valves. The starting/pilot pressure enable switch closes when the left console is pushed down. The pilot pressure enable relay will energize when the starting/pilot pressure enable switch is closed. Then, current will flow to the implement activation solenoid. Consequently, pilot pressure can reach the pilot control valves.

If the pilot control lock switch is in the STOP position, the implement activation solenoid cannot be energized because the signal is interrupted.

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