Hand tractor to buy small knowledge

When purchasing tractors, the first thing to do is to check the appearance quality, including the paint quality of the parts and the quality of the parts. The paint should be bright and uniform, without missing spray, peeling, peeling and rust; the external parts are intact. The surface of each casting is smooth, and there must be no cracks. Welds at welds must be smooth and firm; check for important components such as engine and engine block, engine cylinder head, high pressure oil pump and oil line connector, drive wheel, frame and transmission. The connection bolts are complete and reliable and cannot have severe leakage oil.
The second is to see if the instruments and lamps are complete and effective. You can use the engine decompression lever to open the engine slowly, and watch the oil pressure gauge or other oil pressure indicator to see if there is any pressure rise.
The third is to check whether the operating mechanism has a card collision phenomenon and whether the operation is effective and reliable. When pulling the clutch handle into the “separate” position, the separation should be thorough; in the “combined” position, there should be no slipping; in the “braking” position, the tire can be manually pushed in place to check if the brake is Effective and reliable. The gear shift lever should have obvious feel when it is engaged, and there should be no jamming, no gearing, or no hanging phenomenon. In the stop state, the main gear lever can only be engaged with one or no more than two gears from the neutral position. When you walk, you cannot automatically disengage or disengage. When the steering clutch is inspected, the gear is hung up, the master clutch is placed in the engaged position, the handle is pinched, the drive wheel can be rolled lightly, and the steering away from the handle of the table is released. It is also possible to check left and right separately, hold the handle on one side, and turn it in the opposite direction.
The fourth is to start the engine for running inspection. Before starting the engine, check the oil level of engine oil, gear oil, and whether there is fuel and cooling water. After everything is normal, you can start and check if the engine start is difficult. After the engine runs smoothly, observe the color of the smoke emitted by the exhaust pipe. The smoke emitted by a diesel engine during normal operation is colorless or light grey. During the operation, it is necessary to pay attention to whether or not the operating parts have abnormal noise. Whether the steering is flexible and the braking is reliable. Run for about ten minutes to check the floor for leaks.
The safety protection of hand drags involves the personal safety of the operator and others. It is recommended that users choose the best security device. It is safe to protect the starting pawl, power output shaft, drive wheel, flywheel, transmission belt, exhaust pipe and other parts, and to attach a safety warning sign on the frame oil tank and other obvious positions. A model that allows users to rest assured.
After selecting the hand-drag, check the technical documents and random items against the packing list to verify that the certificate and the machine's number are the same. Also ask the sales organization or production company to issue sales invoices. This is not only a proof of payment for the purchase of the user, but also a document necessary for the user to apply for a license in the future. Do not forget to check and fill out the three-pack service card. The state maintains clear provisions on the maintenance of agricultural machinery products. This is the basis for warranty claims and claims made by production companies when quality problems occur.

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