Things to pay attention to when purchasing a tractor

2018-09-19 12:02:46

1, the choice of engine

We usually refer to small-wheel tractors as small four-wheel tractors. In recent years, small four-wheel tractors on the market mainly have 11.0kW (15 horsepower) and 13.2kW (18 horsepower). Small four-wheel tractors of 14.7 kW (20 hp) and 8.8 kW (12 hp) are on the market. There are two types of diesel engines installed on small four-wheel tractors, one is evaporative water-cooled diesel engine and the other is circulating water-cooled diesel engine. Since the two types of diesel engines are different in structure and the parts are not interchangeable, you should choose the type of diesel engine commonly used in your area when purchasing the tractor, which is very important for future maintenance and maintenance.

2, select brand products

Since brand-name products are recognized by the public in long-term use, or approved by authoritative departments (such as the agricultural machinery promotion license products of the Ministry of Agriculture), their products are of reliable quality, advanced performance, large product coverage and good after-sales service.

3, check the appearance

1 The paint of the outer casing should be bright, uniform, and there should be no peeling and peeling, and the hand feels smooth and flat.

2 The surface of the casting should be flat, without cracks and blisters visible to the naked eye. The appearance of the sheet metal should be smooth, and the surface of the plated part should be bright and free of rust.

3 The surface of the tire should be smooth, the pattern is regular, and there is no bubbling or cracking.

4. Check whether the safety protection device and the safety warning sign are complete and effective.

1 Check the starting shaft head of the engine, the end of the shaft head cannot protrude beyond the outer plane of the engine casing. In case the engine is running, people are in danger when approaching.

2 Pulleys and belts must have a protective cover. In case the engine is running, people are in danger when approaching.

3 There should be a protective cover on the exhaust pipe. In case the operator accidentally touches and burns.

4 Steps or pedals on the car should have non-slip or raised edges or ribs. In case the driver gets on and off the car, the foot slips, causing a fall and bruise.

5 The shaft head of the PTO must have a shroud. In case the engine is running, people are in danger when approaching.

6 On the operating device where the steering direction is not obvious, there should be a symbol indicating the direction to prevent misoperation.

5, check the operating mechanism

1The throttle and tie rods are connected reliably, and there is no card touch on the test.

2 Push the main and auxiliary shift levers (shift levers) according to the operating procedures to confirm that they are reliable.

3 When the front wheel is not moving, the free rotation angle should not be too large, less than 30 degrees.

6, test drive

1 Check engine oil height, add diesel and cooling water.

2 When the ambient temperature is higher than 5 °C, start three times in succession, and two of them should start smoothly within 30 seconds.

3 Under the medium throttle for 10 minutes, the exhaust is free of black smoke, and the sound of the engine should be continuous and steady.

4 After 10 minutes, the throttle will be reduced as much as possible, running at low speed (idle speed), and the engine sound should be stable.

5 Increase the throttle gradually and the engine sound should be stable. When the throttle is maximum, the exhaust pipe will not emit black smoke.

7. Stop leaking and leaking oil check

Observe that the joint surface of each rotating member should be free of dripping and flow marks. Hand touch static joint surface should be no wet.

8. Check and check random attachments, documents and documents

Product certificate, agricultural machinery promotion permit, "three guarantees" certificate (service card), instruction manual and maintenance manual and accessories.

9. After purchasing the goods, take the initiative to ask the seller for the official invoice printed by the tax department.

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