Accurate control of the hand-held tractor throttle is essential for efficient and safe operation. The driver manually adjusts the throttle using the throttle handle, and improper use can lead to fuel wastage and premature wear of engine components. Proper throttle management involves three key areas:
First, throttle control during diesel engine startup. It's generally not recommended to set the throttle at maximum when starting the engine. In summer, a medium or slightly higher speed setting is ideal. During winter, due to lower temperatures, it's better to first turn the crankshaft at idle before engaging the throttle at a medium or high position. If the engine doesn’t start after a few attempts, stop and restart. Avoid using a large throttle during startup; once the engine starts, immediately reduce the throttle to prevent it from running at high speed right away, which can cause poor lubrication and damage to internal parts.
Second, throttle control when starting the tractor. It’s not advisable to use a large throttle when the tractor is in neutral or without a load. A medium or small throttle is more suitable. When starting under load, a larger throttle may be necessary. However, it's important to avoid sudden high-speed operation right after starting, especially during transport or rotary tillage. This can lead to damage such as broken transmission chains, excessive wear on hooks and bolts, or even failure of the rotary drive system during field operations.
Third, throttle control when climbing uphill. Overloading should be avoided, as it can cause the tractor to lose power and struggle while ascending. Normally, a large throttle combined with a low gear is recommended to maintain a steady climb. If black smoke appears from the exhaust, it may indicate overloading, so reducing the throttle slightly can help. In extreme cases, switching to the lowest gear may be necessary to safely navigate the incline without damaging the engine or transmission.
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