III Komponen Tractor RODA DUA Part I

Summary

This lecture covers the topic of agricultural tools and machinery, specifically focusing on two-wheeled tractors (hand tractors). The discussion includes the key components of these tractors, such as the motor drive, frame, transmission, and control levers. It highlights the different fuel types, motor options, and the function of each part, including how the power is transferred to the tractor's wheels and implements. The lecture also addresses the role of control levers in operating the tractor and how their configuration impacts the tractor’s performance. The session provides an in-depth understanding of hand tractor mechanics and usage.

Takeaways

• 😀 Two-wheeled tractors (hand tractors) are powered by diesel, gasoline, or kerosene engines, and have a single axle with two wheels.
• 😀 These tractors typically measure between 1.7m to 2.2m in length and 71cm to 88cm in width, with a power output of 6 to 10 horsepower.
• 😀 The frame of the tractor supports the motor, transmission, and other components, and its position can be adjusted for balance and belt tension.
• 😀 Diesel engines are commonly used due to their lower operating and maintenance costs, as well as their longevity compared to other engine types.
• 😀 Transmission systems are essential for transferring power from the engine to the wheels and tools, and include components like gears, belts, and PTO systems.
• 😀 The main clutch lever connects or disconnects the engine from the transmission to control the power flow.
• 😀 Gear shifters control the tractor's speed by altering the gear ratios, and hand tractors may have multiple gear options for different tasks.
• 😀 The PTO (Power Take-Off) lever helps control attached equipment like rotary tillers, providing necessary rotational speed for various tasks.
• 😀 Steering levers (for the right or left wheels) allow the operator to control the direction of the tractor, with each side's clutch being engaged or disengaged as needed.
• 😀 Additional controls like the throttle manage engine speed, while other levers and buttons control lights, horn, and front support for the tractor's balance when stationary.

Q & A

What is a two-wheel tractor (hand tractor)?

A two-wheel tractor, also known as a hand tractor, is a type of tractor that is powered by either a diesel or gasoline engine. It has two wheels and can be equipped with rubber tires or a steel cage wheel. It has a single axle and operates with a main clutch to power agricultural tools or provide mechanical power.

What are the main components of a hand tractor?

The main components of a hand tractor include the power unit (engine), frame, transmission, main clutch, and control levers. These components work together to drive the wheels and power the tractor's attachments.

How is the power from the engine transmitted to the wheels in a hand tractor?

The engine's power is transmitted through the crankshaft to the main clutch. From the clutch, power is directed through a V-belt to the transmission gears, which then transfer the motion to the wheels and other rotating components like the power take-off (PTO) shaft.

Why is a diesel engine often preferred in hand tractors?

A diesel engine is preferred in hand tractors because it is more cost-effective to operate and maintain compared to gasoline or kerosene engines. Diesel engines are also more durable and can last longer with proper maintenance.

What is the role of the transmission in a hand tractor?

The transmission in a hand tractor transfers the engine's rotational power to the wheels and other attached implements. It also helps control the tractor's speed and direction by adjusting the gear ratios.

What is a PTO (Power Take-Off) and how does it work?

The PTO (Power Take-Off) is a mechanism that allows the tractor to transfer power to external machinery. It is driven by the engine's power and is used to operate implements such as a rotary tiller or other agricultural tools.

What are some of the key control levers on a hand tractor?

Key control levers on a hand tractor include the gear shift lever, clutch lever, throttle lever, PTO control lever, steering levers, and various other auxiliary controls used to operate the tractor and its implements.

What is the purpose of the steering levers on a hand tractor?

The steering levers on a hand tractor are used to control the direction of the tractor. They engage the left or right clutch, causing the respective wheel to stop or slow, allowing the tractor to turn.

How does the tractor's weight distribution affect its operation?

The tractor's weight distribution is adjusted by moving the engine forward or backward. Shifting the engine forward makes the tractor heavier at the front, while shifting it backward makes it heavier at the rear. This adjustment affects the tractor's balance and its ability to perform tasks like tilling.

What are the different types of control levers commonly found on hand tractors?

Common control levers on hand tractors include the main gear shift lever, fast-slow gear shift, main clutch lever, PTO speed control lever, steering clutch levers, and throttle lever. These levers allow operators to control the tractor’s speed, direction, and operation of attached tools.