Komatsu GD705-5 Motor Grader

The GD705-5 achieves up to 5% better work output and fuel savings compared to the previous GD705A-4 model under similar working conditions, enhancing field efficiency.

It features a new variable displacement piston pump, which effectively minimizes pressure loss during hydraulic operations, contributing directly to energy efficiency and reduced operational costs.

A redesigned transmission and axle system improves the energy transfer efficiency of the machine, ensuring that less energy is wasted and more is utilized during grading work.

The sophisticated electronic control system optimizes engine performance in real time, automatically adjusting output to meet load requirements without excessive fuel consumption or power loss.

Operators can select between two transmission modes, allowing for either automatic torque converter drive or direct manual drive, balancing power output with economic operation as needed.

With enhanced cooling capacity and efficient component layout, the engine maintains optimal working temperatures even under heavy loads, reducing energy losses due to overheating.

The GD705-5 cab design maximizes operator visibility through a hexagonal structure and uniquely placed Y-shaped front and rear side pillars that reduce visual obstructions.

Operators enjoy a suspension seat that adjusts to body weight and absorbs machine vibrations, reducing fatigue and discomfort during long working hours on tough terrain.

Noise within the cab is significantly reduced due to a hydraulically driven fan and reengineered cooling layout, enhancing focus and decreasing auditory stress for the operator.

The control console is fully adjustable and designed for ease of use, allowing operators to customize the cabin environment to their ergonomic preferences and workflow habits.

A well-ventilated and air-conditioned cab ensures comfort across varying climate conditions, keeping the operator cool and alert regardless of the environmental temperature or humidity.`

Practical features like a DC12V outlet, personal storage space for items like lunch boxes or coats, and foldable armrests enhance the overall operational convenience inside the cab.

The GD705-5 features a lock-up torque converter transmission that allows smooth transitions between gear ranges and boosts traction and torque when starting from lower gears.

In automatic mode, the machine enables full power shifting from F1 to F8, letting the operator maintain high productivity with simplified accelerator and brake pedal operation.

Manual mode offers a direct-drive experience, similar to conventional machines, maintaining constant speed and greater fuel economy, especially beneficial during prolonged grading activities.

The engine stall prevention system detects high load conditions and temporarily switches to auto mode to avoid stalling, preserving engine health and preventing unexpected shutdowns.

The electronic over-speed protection prevents premature downshifting and damage due to downhill overspeeding, which could otherwise harm both the engine and transmission components.`

Smooth shifting characteristics with curve-optimized torque converter functionality reduce jerkiness, offering both the operator and machine better protection from transmission-related wear and shock loads.

The Komatsu SAA6D114E-3 engine is engineered to meet stringent EPA Tier 3 and EU Stage 3A standards, balancing high power output with environmentally responsible emissions.

The Common Rail Injection system maximizes fuel atomization, allowing for efficient combustion and reduced fuel waste, which significantly lowers emissions and enhances worksite sustainability.

Operators can choose between "P Mode" for high resistance environments and "E Mode" for lighter applications, optimizing power and fuel consumption for varying site demands.

A double-seal cylinder on the blade prevents oil leakage caused by contact with dirt or debris, reducing both environmental contamination and maintenance downtime.

The hydraulically driven cooling fan reduces both operating noise and energy usage, while a sound-dampened fuel tank layout further limits environmental noise during operation.

The machine’s reduced dynamic circumference noise—improved by 7 dB(A) over older models—results in a quieter overall footprint, benefiting workers and nearby communities.

The machine monitor offers real-time feedback on component status, error codes, and maintenance alerts, allowing operators to catch and address issues before they become major problems.

Komatsu’s sealed, hydraulically actuated wet disc brakes require minimal maintenance and provide reliable stopping power, located at each tandem wheel for load distribution efficiency.

The battery disconnect switch offers a quick and safe method for cutting off power during service, eliminating risks of accidental startup or electrical hazards during inspection.

Large, hinged service doors and ground-accessible drains for fuel, oil, and coolant make routine checks and servicing faster, safer, and less physically demanding for technicians.

A circle drive slip clutch protects key components like the drawbar and moldboard by slipping under extreme shock loads, preventing costly damage and downtime.

Modular powertrain components—including the engine, transmission, and final drives—can be removed independently, allowing for isolated servicing and quicker turnaround times for repairs and replacements.

KOMTRAX provides remote access to detailed machine data including location, engine hours, load history, and operational status through an online platform for fleet managers.

The system enables real-time diagnostics, notifying users of required maintenance or component issues, which helps avoid major failures and unplanned downtimes.

Engine lock features and warning alerts from KOMTRAX enhance equipment security, ensuring that unauthorized usage or tampering is minimized on construction sites.

The system also logs fuel usage, allowing fleet owners to identify excessive consumption and make data-driven adjustments to operator habits or job assignments.

KOMTRAX tracks average gas mileage and load conditions, making it easier to compare machine performance over time and evaluate productivity across multiple sites.

Monthly summaries of work records, including service meter readings and operating hours, help create accurate maintenance schedules and ensure compliance with warranty requirements.