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Final Drive Excavator Hitachi
Racer Machinery
The final drive, also known as a travel motor or track motor, is an essential component of an excavator's propulsion system. It is responsible for driving the tracks and providing the necessary power for the excavator to move. Here is some general information about the final drives in Hitachi excavators:
1. Function: The final drive transfers power from the excavator's engine to the tracks, allowing the machine to move forward, backward, and turn. It receives hydraulic power from the hydraulic system and converts it into mechanical power to drive the tracks.
2. Construction: Hitachi excavators typically use planetary final drives. Planetary drives consist of a central sun gear, planetary gears, and an outer ring gear. This design allows for compactness, high torque output, and durability.
3. Components: The main components of a final drive include:
a. Motor: The hydraulic motor is the primary component that converts hydraulic power into mechanical power. It drives the gears to rotate and propel the tracks.
b. Gears: The planetary gears transmit the rotational force from the motor to the tracks. These gears are designed to handle high torque loads.
c. Seals and Bearings: Seals prevent the ingress of contaminants into the final drive, while bearings support the rotating components and reduce friction.
d. Housing: The housing encloses and protects the internal components of the final drive.
4. Maintenance and Service: Regular maintenance and inspection of the final drive are crucial for optimal performance and longevity. This includes checking and replacing oil, inspecting seals and bearings, and ensuring proper lubrication.
5. Availability of Parts: Hitachi final drive components, such as motors, gears, seals, and bearings, are typically available through authorized Hitachi dealerships, online suppliers, and specialized construction equipment parts retailers. Genuine OEM parts are recommended for compatibility and performance.
6. Repair and Rebuilding: In cases where the final drive experiences significant wear or damage, repair or rebuilding services may be available. Authorized service centers or specialized repair facilities can assess the condition of the final drive and perform the necessary repairs or rebuilding procedures.
It's important to note that specific details about the final drives in different Hitachi excavator models may vary. For precise and detailed information about the final drives in a particular Hitachi excavator model, it is recommended to refer to the official Hitachi documentation, consult an authorized Hitachi dealer, or contact Racer Machinery directly.
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