Weihe tractor manufacturers: agricultural machinery has been very common in the countryside, the use of agricultural machinery operations in the efficient and convenient at the same time, but also often with a variety of failures.In the normal maintenance treatment, although the technical status of agricultural machinery parts can be identified by instruments and instruments, but the three senses of vision, hearing, touch can be faster and more direct judgment of agricultural machinery failure, improve the maintenance efficiency.

1. Visual judgment.Faults can be judged by observing the wear of external parts and the quality of the parts' surface materials.If there are cracks on the cylinder block and head, the surface of gears and flow bearings fatigue off, the injector and exhaust valve after serious burning damage will form anneal blue or pitting, brake and clutch friction material wear and burning damage, gear pair bite marks, piston and cylinder sleeve transmittance.

2. Auditory judgment.Auditory judgment can be made by using a small hammer to gently hit the inspection part of the metal parts, from the sound to its internal crack, whether the connection is close to judge, generally close sound parts will be relatively crisp, there is a defect sound sounds more muddy.This method can be used to determine whether the crankshaft, side bar crack, bearing alloy with the combination of the body, rivets are connected firmly.In addition, from the operating gear set of the sound, can also be a rough judgment of the meshing situation.

3. Tactile judgment.Tactile judgments can be made by shaking with the hand, and the size of the gap can be judged by the sensation of the feedback.For example, the clearance between valve rod and valve pipe, radial and axial clearance of flow bearing, etc.