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Three common failures and troubleshooting methods of tractors

Three common failures and troubleshooting methods of tractors

Update Time:2021-08-13
High pressure oil pipe is worn and leaked
If the connection between the protruding head of the tractor's high-pressure oil pipe and the fuel injector and the oil outlet valve is worn and leaked, you can cut a round copper sheet from the waste cylinder gasket and tie a small hole in the middle of the grinding pad between the convex pits. Meet the urgent need
Sudden fuel shortage

Insufficient fuel supply during tractor operation, such as exhausting air, replacing the plunger, and the fuel injection nozzle, is still not effective, that is, the small steel ball in the fuel injection needle ejector rod of the fuel injector is eccentrically worn and the fuel injection cannot be atomized. At this time, a small steel ball should be replaced or a bicycle flywheel steel ball should be used instead.

3. Steering wheel shaking, front wheel swinging

The phenomenon of steering wheel shaking and front wheel shaking is mainly caused by improper positioning of the front wheel and the too small caster angle of the kingpin. In the absence of instrument testing, try to plug a wedge-shaped iron plate at the rear end of the leaf spring and the front axle support plane to make the front axle rotate backward and increase the caster angle of the kingpin to return to normal after trial operation.

4. Automatically skip gears after shifting

The phenomenon of automatic gear skipping after shifting in tractor operation is mainly caused by the wear of the fork shaft groove, the weakening of the fork spring, and the excessive gap between the connecting rod joints. At this time, it is necessary to repair the positioning groove, replace the fork spring, and reduce the gap of the connecting rod joint to ensure the normal speed change.

5. Poor oil pump performance

To solve the problem of poor performance of the oil pump after overhaul or overhaul, the oil pump does not come up when the locomotive is started for the first time. The oil filter or oil outlet pipe can be removed and then filled with oil from the oil outlet of the engine body with an oiler. When the indicator oil pipe is activated, the oil will be pumped