How to use large and medium-sized tractors Operation and usage instructions for large and medium-sized tractors

During the use of tractors, the working ability of parts or fittings may gradually decrease or be lost due to factors such as looseness, wear, deformation, fatigue, corrosion, etc., resulting in the technical state of the entire machine becoming abnormal. In addition, working media such as fuel, lub...

During the use of tractors, the working ability of parts or fittings may gradually decrease or be lost due to factors such as looseness, wear, deformation, fatigue, corrosion, etc., resulting in the technical state of the entire machine becoming abnormal. In addition, working media such as fuel, lubricating oil, cooling water, and hydraulic oil will gradually be consumed, which will damage the normal working conditions of the tractor and exacerbate the deterioration of the overall technical condition of the machine.

In order to keep the tractor in good technical condition and extend its service life, it is necessary to operate, maintain and adjust the tractor correctly.

How to use large and medium-sized tractors

（1） Starting the engine

1. Preparation work before startup

Before use, a thorough and comprehensive inspection of the tractor can eliminate potential faults and effectively prevent accidents from occurring.

(1) Check the oil level position of the engine oil pan.

(2) Check the oil level position of the gearbox and rear axle.

(3) Check the oil level position of the steering tank.

(4) Loosen the locking device of the flameout cable to release the flameout cable and place the fuel injection pump in the fuel supply position.

(5) Check the various control levers of the gearbox and the power output control lever to ensure they are in neutral position and the hydraulic lever is in the down position.

2. Start the engine

Insert the key into the lock, turn the key clockwise to start the engine, and return to the "N" position after starting.

(1) Once the engine is running, release it immediately.

(2) The continuous start-up time shall not exceed 15 seconds. If it cannot be started within 15 seconds, it should be stopped for 2 minutes before restarting. If it cannot be started for 3 consecutive times, the cause should be identified before restarting.

(3) After starting the engine, let it idle at around 800R/MIN, raise the water temperature to above 60 ℃, and the pressure to above 0.1MPA before it can be put into operation.

（2） Starting of tractor

1. When the engine is at low speed, press the clutch pedal, disengage the main clutch, and then shift the transmission gear lever to the desired gear.

2. Sound the horn and observe for any obstacles around.

3. Gradually increase the engine speed and slowly release the clutch pedal to make the tractor start smoothly. Release the clutch pedal after starting to prevent the clutch from slipping and grinding.

4. Gradually increase the throttle to bring the tractor to the desired operating speed.

5. It is not allowed to use a semi engaged clutch to reduce the speed of the tractor during use. Do not keep your foot on the clutch pedal while driving to avoid wear on the acceleration release lever, release bearing, and friction plate.

（3） Steering of tractor

When the tractor is driving at high speed, remember not to use unilateral braking for sharp turns. If there is a squeaking sound when the safety valve is activated during a large turn of the front wheel, the steering wheel should be slightly retracted to avoid long-term overload of the hydraulic steering system.

Before turning or reversing in field work, it is necessary to lift the working parts of the agricultural machinery that have entered the soil out of the ground to avoid damaging the agricultural machinery or causing personal injury accidents.

When the tractor makes small turns or turns on soft soil, the steering may become difficult due to the front wheels slipping. To assist with steering, you can turn the steering wheel and press the corresponding brake pedal on the side.

（4） Driving of tractor

When the tractor is driving on the road, the interlocking plate should be used to lock the left and right brake pedals together. Prevent the tractor from deviating or overturning due to unilateral braking. In general, the accelerator should be reduced first, the clutch pedal should be pressed, and then the brake pedal should be pressed according to the situation to make the tractor stop smoothly. During emergency parking, both the clutch and brake pedals should be pressed simultaneously to prevent the brake friction plates from increasing wear or causing the engine to stall. When working in the field, single-sided or full braking can be selected according to the actual operation situation and needs. When using unilateral braking, the interlocking shaft needs to be removed. Unilateral braking requires low-speed driving to avoid deviation.

（5） Operation of differential

If the tractor encounters a stuck vehicle or unilateral drive slip during driving or operation, and the tractor cannot move forward, the differential can be engaged according to the following steps to rigidly connect the left and right drive shafts and drive out of the slippery area at the same speed.

1. Step on the main clutch pedal and shift the gear lever into low gear.

2. Turn the throttle control lever to the maximum position.

3. Step on the differential control pedal with your right foot.

4. Release the clutch pedal smoothly to allow the tractor to start smoothly.

5. After driving out of the slippery area, release the differential pedal and the differential will automatically disengage.

6. During normal driving and turning, it is strictly prohibited to use differential locks, otherwise it may damage the components and accelerate tire wear, and even cause rollover accidents.

（6） Operation of power output

1. Step on the clutch pedal to the bottom, the secondary clutch is disengaged, and the power output shaft stops rotating.

2. Press down the power output shaft control lever to engage the power output shaft.

3. Slowly release the clutch pedal to start the operating machinery.

（7） Tractor parking and engine shutdown

1. Reduce the throttle to lower the tractor's travel speed.

2. Step on the clutch pedal, then step on the brake pedal, and when the tractor comes to a stop, place each gear lever in neutral.

3. Release the clutch and brake pedals, reduce the throttle to idle the engine.

4. Pull the shutdown lever backwards, the oil pump stops supplying fuel, the engine immediately shuts down, and then push back to the supply position

5. Turn the start switch key to the "OFF" position and turn off the power switch.

6. Pull up the parking brake lever.

7. When parking on a slope, it is necessary to shift into gear (forward gear when going uphill, reverse gear when going downhill) to prevent the tractor from suddenly starting and causing danger.

8. If the temperature is below 0 ℃ and the tractor is not using antifreeze, the water tank drain valve must be unscrewed while the engine is idling, and then the engine must be turned off to prevent the cooling water from freezing and causing the body to crack.