Digger Safety/Operation EEC-0109 V1.2
Digger Safety and
Operation
There is a proximity switch on the digger stow bracket that detects when the
digger is stowed. When this switch is magnetized, it sends a signal to a normally open
solenoid that is plumbed into the extend circuit and is located in the control console near
the main control valve. When this solenoid is energized, the boom extend circuit will
have full extend pressure.
When the auger is deployed, and the proximity sensor is no longer magnetized,
the signal to the solenoid is removed, and the solenoid opens to insert a 600 PSI relief
into the extend circuit. When the boom is extended until the digger hose carrier reaches
its mechanical stop, the extend pressure is limited to 600 PSI.
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