Used Excavator Komatsu PC35MR Gallery, Images, Pictures

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Used Excavator Komatsu PC35MR Main Parts Pictures

The Komatsu PC35MR is a compact, mini hydraulic excavator that is commonly used for tasks in confined spaces like landscaping, urban construction, and utility work. Despite its smaller size, the PC35MR offers excellent power, versatility, and ease of maneuverability. Here are the main parts of the Komatsu PC35MR excavator:

1. Engine

• Engine Type: The PC35MR is powered by a Komatsu 3D84E-5 turbocharged, 4-cylinder, direct injection diesel engine.
• Rated Power: Approximately 24.7 kW (33.1 hp) at 2,200 rpm.
• Fuel System: It uses a common rail fuel system to improve fuel efficiency and reduce emissions.
• Cooling System: Includes a radiator and an oil cooler to maintain optimal engine temperature.

2. Hydraulic System

• The hydraulic system is one of the most important components, as it powers all of the excavator's key functions like boom, arm, bucket, and swing movement.
• Main Hydraulic Pump: This is a variable displacement pump that provides high-flow hydraulic power to operate the digging and lifting functions.
• Hydraulic Cylinders: These control the movements of the boom, arm, and bucket. The system provides high lifting and digging power, despite the compact size of the machine.
• Pilot System: The PC35MR uses a pilot-operated hydraulic system for precise control, allowing the operator to easily manipulate the machine’s movements with minimal effort.
• Hydraulic Valves: These valves control the flow of hydraulic fluid to the cylinders and attachments, providing smooth and responsive movements.

3. Undercarriage

• Track Frame: The undercarriage of the PC35MR is designed to be compact, strong, and durable, allowing it to operate in tight spaces.
• Tracks: The rubber tracks are designed for low ground pressure and good traction on soft surfaces. They also reduce the impact on the ground and minimize damage to delicate surfaces like pavement or grass.
• Track Rollers: These support the track system and ensure smooth operation.
• Idlers: Located at the front of the undercarriage, the idlers help guide and tension the track system.
• Sprockets: These engage with the track links to propel the machine forward.

4. Upper Structure

• Cab: The operator’s compartment, which includes a comfortable seat, control levers, and an air-conditioning/heating system for operator comfort. The cab is designed for visibility, allowing the operator to have a clear view of the work area.
• Swing Bearing: This component allows the upper structure of the excavator (the cab, boom, and arm) to rotate 360 degrees.
• Counterweight: The counterweight is located at the rear of the machine and provides balance to the excavator, especially when lifting or digging heavy loads.
• Engine Hood: Provides easy access to the engine and cooling components for maintenance.

5. Boom, Arm (Stick), and Bucket

• Boom: The large vertical arm of the excavator that gives the machine its reach and height for digging and lifting.
• Arm (Stick): The extendable arm connects to the boom and allows the bucket to reach further into tight spaces.
• Bucket: The digging and material-handling attachment mounted at the end of the arm. The PC35MR can be fitted with different types of buckets based on the type of work, such as digging buckets or ditch-cleaning buckets.

6. Attachment System

• The PC35MR can be equipped with various attachments, making it a versatile machine. Common attachments include:
  • Buckets (standard, narrow, ditching)
  • Hydraulic Hammers
  • Grapples
  • Augers
  • Hydraulic Tilt Rotators
• The quick coupler system makes it easy to change attachments quickly.

7. Cooling System

• The radiator and oil cooler work together to keep the engine and hydraulic oil within optimal operating temperatures, preventing overheating.
• The cooling system ensures maximum efficiency during long hours of operation.

8. Electrical System

• Alternator: Powers the electrical components and recharges the battery.
• Battery: Provides power to start the engine and operate the electrical systems of the excavator.
• Fuses and Wiring Harness: Protects and distributes electrical power to various components like the lights, sensors, and control systems.

9. Transmission and Drive System

• The PC35MR uses hydrostatic drive for smooth and efficient movement. This system includes:
  • Final Drive Motors: These convert hydraulic power into movement for the tracks.
  • Planetary Gears: The gear system that reduces speed and increases torque for efficient track movement.
• Steering System: The operator uses levers to control the movement of the tracks for steering and maneuvering the excavator.

10. Swing System

• Swing Motor: Powers the rotation of the upper structure for 360-degree continuous rotation.
• Swing Reducer: Reduces the speed from the motor and increases torque for smoother and more controlled swinging of the upper structure.
• Swing Ring: A bearing that allows the upper part of the excavator to rotate around the base.

11. Fuel System

• Fuel Tank: Stores the diesel fuel required for engine operation.
• Fuel Filters: Clean the fuel before it enters the engine, preventing contamination and extending engine life.

12. Steering and Travel System

• Pilot-Controlled Joystick: Allows the operator to control the machine’s movements with minimal effort. The joystick operates the boom, arm, bucket, and swing as well as the travel speed.
• Hydraulic Travel Motors: These drive the tracks, allowing the excavator to move forward and backward.
• Travel Speed Control: The operator can adjust the speed at which the tracks move depending on the task and terrain.