John Deere 350D Rock Truck Specifications and Features Overview

The John Deere 350D Rock Truck is designed to tackle the toughest environments and carry heavy payloads with ease. With a maximum payload capacity of 40 tons, this model stands out in the field of off-highway trucks. Equipped with a powered 9.0L diesel engine, it delivers 370 horsepower to meet demanding transport needs in construction, mining, and quarrying operations.

One of its key features is the high-performance hydraulic system, which provides smooth and consistent operation even in harsh conditions. The 6-speed transmission ensures optimal fuel efficiency and performance across varied terrains. The durable frame and robust suspension system guarantee stability and safety, especially when navigating rocky or uneven ground.

The truck’s advanced operator station is engineered for comfort and control. With easy-to-use controls and visibility, operators can work long hours with reduced fatigue. Maintenance is straightforward thanks to the well-thought-out service points and diagnostics, making downtime minimal and productivity high.

John Deere 350D Rock Truck Specs

The John Deere 350D Rock Truck is designed for heavy-duty applications, offering robust performance in challenging conditions. Key specifications include:

• Engine Power: 350 horsepower (261 kW), powered by a John Deere 6090H diesel engine, providing substantial torque for demanding haulage.
• Payload Capacity: Capable of carrying up to 40 tons (36.3 metric tonnes) of material, ensuring high productivity in rock and aggregate transport.
• Transmission: Fully automatic 6-speed transmission, designed for smooth shifts and reliable power delivery.
• Maximum Speed: Top speed of 40 mph (64 km/h), offering efficient transport between job sites without sacrificing load capacity.
• Dump Body: The 350D features a high-capacity dump body, with a large tipping angle for effective unloading in tight or uneven spaces.
• Dimensions: The overall length is 12.2 meters (40 feet), width is 3.2 meters (10.5 feet), and height stands at 4.3 meters (14 feet), providing stability and maneuverability.
• Fuel Tank: A fuel tank capacity of 318 gallons (1,202 liters), ensuring longer operation between refuels.
• Hydraulic System: Equipped with a closed-center hydraulic system for consistent and reliable operation of the dump body and other attachments.

The John Deere 350D is engineered for high efficiency, with maintenance-friendly features and advanced diagnostics. This makes it an ideal choice for rock quarries, mining sites, and large-scale construction projects.

Engine Performance and Power Capacity of the John Deere 350D

The John Deere 350D Rock Truck features a robust engine with a power output of 350 horsepower, delivered by a 9.0-liter, six-cylinder turbocharged diesel engine. This engine provides the necessary strength for heavy-duty operations, especially in rugged environments where performance and durability are key. With a maximum torque of 1,100 lb-ft at 1,400 RPM, the 350D maintains impressive efficiency even under challenging conditions.

Designed for consistent power delivery, the engine integrates seamlessly with the Allison 4800 Series automatic transmission, enabling smooth gear shifts and maintaining optimal performance across varied terrains. The torque converter lock-up system ensures that energy is efficiently transmitted to the drivetrain, reducing power loss and maximizing output.

The powertrain is paired with a heavy-duty cooling system that keeps the engine temperature in check, even during extended operations. This ensures that the 350D can operate in hot climates or in intensive workload conditions without overheating or risking engine failure.

In terms of fuel efficiency, the John Deere 350D’s engine is designed to minimize fuel consumption while maintaining high power output. This results in lower operating costs and longer intervals between refueling, making it a cost-effective choice for long-term use in construction or mining sites.

Operators can rely on the John Deere 350D to perform with steady power under the toughest conditions, making it an excellent option for tasks requiring both high load capacity and engine reliability.

Payload Capacity and Load Distribution in the 350D Rock Truck

The John Deere 350D Rock Truck offers a payload capacity of 40 tons (36.3 metric tonnes), allowing operators to transport large quantities of material efficiently. This high capacity is balanced with a load distribution system designed to maximize stability and reduce wear on components. The truck’s design ensures that the load is evenly distributed across the axles, preventing excessive strain on any single part of the vehicle.

Proper load distribution is key to maintaining optimal performance and safety. The 350D’s suspension system, combined with its well-engineered frame, enables it to handle large, heavy loads while maintaining even weight distribution. This reduces the likelihood of tire wear and ensures the truck can operate smoothly on rough terrain.

When loading the truck, it’s essential to avoid overloading the rear or front axles. The 350D Rock Truck has been engineered to distribute weight evenly across its axles, improving traction and reducing the risk of tipping. To achieve this, ensure that the material is loaded uniformly across the bed, avoiding any concentration of weight in one area.

For optimal performance and longevity, always keep an eye on the truck’s load indicators and monitor the weight distribution while operating. This practice minimizes the risk of mechanical issues and ensures that the 350D Rock Truck remains productive over time.

Hydraulic System Specifications and Operational Efficiency of the 350D

The John Deere 350D rock truck features a highly capable hydraulic system designed to provide reliable performance in demanding environments. The hydraulic system operates with a total system pressure of 3,000 psi (207 bar), ensuring optimal power for lifting, dumping, and steering functions. The system includes a variable displacement piston pump that adjusts flow based on demand, improving fuel efficiency while maintaining hydraulic power.

The 350D uses a load-sensing system to optimize hydraulic flow and reduce energy loss. By automatically adjusting the hydraulic pressure based on the load conditions, this feature contributes to smooth and responsive operation. The truck’s hydraulic oil reservoir has a capacity of 150 gallons (568 liters), which supports extended operation times without frequent refills.

The operational efficiency of the hydraulic system is enhanced by its integration with the truck’s engine. The hydraulic pump is directly driven by the engine, providing consistent power transfer and reducing the risk of system strain. The combination of the robust pump and high-pressure system ensures that the truck can tackle heavy-duty tasks with ease, from hauling to complex lifting and dumping operations.

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