First, the engine part If the engine power, other conditions are normal, due to a longer parking time, nearly a year, the engine should be the three filters (air, oil, diesel) to replace, clean, replace the oil. If the power drops, the engine will be refurbished.

Second, the transmission part if the clutch is not smooth, slipping, separation is not complete, difficult to file, there is a sound of teeth, in the busy before the clutch must be maintained, prompt replacement of Mocha film, adjust the gap between the master and vice mocha , Adjust the clutch pedal self-travel.

Third, the walking part of the tire is intact, the pressure is appropriate, the same from left to right, no cracks in the steel ring, no deformation, screw fastening, the front toe beam meets the requirements, do not swing the head; if Jiangsu - 504, the front tire pressure 80-120 kPa The rear tires are 180 kilopascals. When the air is inflated, the pressure must be in compliance with regulations, and it is easy to puncture the tires.

Fourth, the steering part of the steering wheel free stroke to meet the requirements, flexible operation, steering, horizontal and vertical drawbars are not deformed, the connection device is not loose; in particular, Jiangsu - 504, steering hydraulic cylinder rod and the front wheel nuts must be tightened. Pin clearance should not be too large.

V. Braking part Due to the use of mechanical brakes for medium-sized tractors, nearly one year has been deactivated. The brake pressure plates, steel balls, return springs, and brake discs in the brakes may rust and become stuck. Poor, therefore, must always check, the effect of the brake is poor, we must take off the maintenance. Adjust the brake pedal free stroke 60-80mm. Return agile and interlock and self-locking device; the left and right wheels have the same braking effect, and the brake is effective.

6. Lights Due to the poor signal system in the towed lights, the frequently used turn signals, headlights, and speakers must be repaired and effective.

Seven, the body and ancillary equipment part.

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