How to choose a tractor (2)

(1) Appearance Selection 1 The surface of the tractor should be clean, all components and instruments must be complete, each nut must be firm, and the split pin and the safety device should meet the requirements.
2 no oil leakage, no water leakage. The inspection method is to first look at the place where the tractor is parked and there is no water stains and oil traces; then see if there is any place where the water tanks take over the joints, and if there is oil seepage in the timing gear chamber, oil pan, gearbox, etc.
3 does not leak. The inspection method is to perform cranking without decompression, and listen to the air filter, exhaust pipe, crankcase, etc. when there is no noise. If a “click” sound is heard at the crankcase, there is a leak outside the piston. If there is a “click” sound at the air filter, the intake valve is leaking; if it is heard at the exhaust valve The "click" sound is exhaust valve leak.
4 open decompression, cranking crankshaft should be flexible, no noise.
5 electrical equipment inspection. Do not start the engine to turn on the power switch, then turn on the headlights and the rear lights and work lights, change the light to see if it is normal; if you hear the sound loud and loud. At this point, the ammeter pointer should swing in the direction of "one".
(2) Start-up inspection 1 The motor should be strong when starting, the engine is easy to fire, the sound is normal and there is no noise, the smoke is dark brown, and there is no blue, white and black smoke.
2 Check the oil pressure. After the start of the tractor, the oil pressure rises up and falls within the specified range.
3 governor sensitivity check. You can suddenly increase and reduce the throttle, to hear whether the engine noise changes significantly, the rapid operation is stable.
4 Check the electrical equipment after starting. When the engine is started, the ammeter pointer points in the "+" direction and is in the position of 2-5 A times. When you turn on the lights, the light intensity is strong;
(3) Start check 1 Check of the clutch. The separation clutch and the coupling clutch should have no sense of jitter.
2 speed check. Hanging files, picking up files, and smooth gears.
3 steering inspection. Whether the free travel of the steering wheel meets the requirements, the front wheel may not swing or run when traveling, and the amount of steering wheel shake is not large, and the steering is flexible.
4 gearbox no noise.
5 The brake is flexible and reliable, the brakes are consistent from left to right, and the brake lights are working properly.
6 water temperature, oil temperature, oil pressure, current and other instruments are sensitive and normal.
(4) Complete tools are included.
Through the above inspections, it is a good tractor to achieve satisfactory results.

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