The Rebuild Process

Our ACO tractor rebuild process is designed to maintain the tractors’ rugged drive train components, while integrating new technology to improve and enhance capabilities and comfort.

We focus on rebuilding ACO 250, ACO 350 and ACO 460 model tractors. The rebuild process starts with a complete tear down of every part and component. The engine, transmission and axles are completely dismantled and then rebuilt to the manufacturer’s specifications. This occurs regardless of the tractor’s service history or the condition of its various components.

After the drive train components are remanufactured, the engine, transmission and axles are dyno tested to ensure that required specifications are met.

The tractor frame is cleaned, shot-blasted and inspected. All welded and machined components are repaired, strengthened and improved on where necessary.

All hydraulic cylinders are serviced and restored to as new condition.

The re-assembly process starts with a complete re-alignment of the driveshaft angles and fitting of all new components.

The articulation and oscillation sections are redesigned and improved to achieve a smaller turn radius. The bearing sections are line bored to ensure long-lasting, trouble-free operation.

A comprehensive range of other improvements are also made. Every tractor that leaves our factory is upgraded to a standardised design, including modifications that improve on the original tractor.

See below for more details about the improvements we make to each part of an ACO tractor during the rebuild process.

Details of our ACO tractor rebuild process


Electronic & software integration

The ACO Tractor’s original transmission control unit has been replaced by a simple but powerful Danfoss platform. With Danfoss as an OEM partner, the tractor features world-class capabilities. Integration between the drive train and the tractor’s electronic control systems is seamless. Significantly, the diesel engine and PowerShift transmission are fully integrated, with full automatic, cruise, crawl, and manual control modes.

Additional sensors and electro-hydraulic actuators enable smooth gear and mode changes, via electronic controls.

With the exception of two auxiliary panels, all controls are accessible via a 12-inch touch screen and armrest control console.

The clutch can be operated via the press of a button on the control stick or by depressing the brake pedal.

The various operating modes can be selected using buttons on the control stick.
In cruise control mode, the software automatically selects the most economical operating gear based on the engine’s performance.

The transmission modulation pressure is electronically managed and internal pressures are controlled with the shift of every gear. The software calculates the operational load in real time and adjusts modulation pressures accordingly. This allows for much smoother gear shifts, even under full loads.

A feature-rich three-point hitch control interface has been developed. It incorporates draft control, slip control and position control, and a variable floating mode.

Remote valves are operated using finger joysticks on the armrest control console. Three different modes, including Detent and Auto Stop/Start modes, and flow control adjustments are accessible via the touch screen.

An auto guidance system is activated through the vehicle’s Controller Area Network (CAN) bus. An ISO bus system for implement applications is accessible through the auto guidance system. The harness is incorporated within the tractor’s wiring harnesses.

One of the main capabilities of the software is to protect the drive train at all times. This ensures reliability and continuous operation, with minimal downtime.

A data telemetry system has also been incorporated. This allows remote system monitoring and software updates. The telemetry system also records all required parameters to extract valuable precision farming datasets.

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