* G21 is GOMACO’s award-winning, proprietary software and control system... GOMACO was recognized for its commitment of resources to the development of this revolutionary software and operating system that combines intelligence with simplicity for GOMACO construction equipment. It is one of the few operating systems awarded a Top 100 Award from Construction Equipment magazine and a Top Innovations Award from Equipment World magazine. The G21 operating system is exclusive to GOMACO.

* GOMACO’s exclusive G21 digital operating system features a universal design that is simple to read and easy to understand... Easy operation is provided with variable control dials and various function switches.

* Red LED display is featured... This provides a user-friendly operation and high visibility for monitoring deviation meters.

* Cruise control to maintain constant, maximum production... The G21 on the 9000 has the GOMACO Trimmer Load Control (TLC) feature for optimum performance and power to the trimmerhead. It will increase the operating speed to a predetermined level in relationship to the trimmer circuit pressure. The G21 automatically controls the travel speed through TLC and takes the operator guesswork on “head pressure versus speed” out of the trimming operation.

* Behind the scenes programming for conveyors... The G21 is responsible for the electronic-over-hydraulic operation of the two conveyors. Programming in the software dictates the ramp-up and ramp-down of the conveyor speed when the conveyors are activated or switched off. This keeps the material in place on the belts and protects the pumps for longer life. The transfer and rear conveyors’ direction and speed are easily controlled through the G21 directional switch and speed dial. The direction and speed of the trimmer and augers on the placer are also controlled by the G21.

* Trims grade to profile... The slope transition system is available for transitioning in and out of curves, and provides automatic and smooth correction for grade elevation and steering. No stringline adjustment is needed.

* G21 makes steering control safe and simple... The G21 makes it possible for the two tracks to steer in perfect proportion by coordinating the oil flow for manual steering with the dial, automatic steering with stringline, or interfaced with 3D control. The G21 also coordinates the flow for safe counter-rotation of the track system.

* Cost savings on hydraulic filters... The G21 monitors all of the hydraulic filters. A warning indication light on the controller alerts the operator to check the diagnostics display when a filter needs attention. The display indicates which of the eight circuit filters requires maintenance, and you only need to replace the filter that has been diagnosed with a problem. The early filter-diagnostics warning provides an alert for cost-efficient preventive maintenance and could eliminate costly hydraulic problems down the road.

* Less downtime and quicker uptime on service... Advanced system diagnostics of the G21 automatically pinpoint and identify electrical circuit opens, shorts and fault codes to aid in troubleshooting. The G21 helps eliminate costly service time in searching for system problems.

* Flow requirements are automatic when interchanging or upgrading trimmerheads... The G21 recognizes what trimmerhead drive system is plugged into it and automatically sets the required flow to the drive motor.

* Quickly alerts the operator... A two-line, 24-character backlit liquid crystal display (LCD) allows the operator to view and monitor numerous active diagnostic codes. Linked to the electronic control system and its sensors, the LCD signals active trouble messages to quickly alert the machine operator of malfunctions.

* More room for future expansion... than any CAN controller on the market for machine control. Compatible with industry standard J1939 CAN network. 20 times more program memory for the many features available in today’s market plus expansion capabilities for the future. Interfaces with stringless technology/3-D control systems and laser technology. True network architecture enhance expandability to communicate with external computer systems. Laptop computer systems can be connected for software updates, data monitoring and future data logging capabilities.