Author: Site Editor Publish Time: 2025-02-27 Origin: Site
As a "heavyweight" in construction machinery, bulldozers play a vital role in earthwork, road construction and mining operations. However, various problems are inevitable in daily use, which affect the construction progress. Below, we will list common problems in bulldozer operation and provide practical solutions.
1. Bulldozer is difficult to start
Problem manifestation: The bulldozer engine is difficult to start at low temperature or after a long shutdown, or even cannot start at all.
Possible reasons:
Battery power is low or wiring is loose.
The fuel system has air or fuel filter blockage.
The viscosity of fuel is too high in winter, which affects combustion.
Solution:
Check the battery power and charge or replace the battery if necessary.
Check whether the fuel filter is blocked, clean or replace the filter element.
In winter, fuel additives can be added or the engine can be preheated at low temperatures.
2. Bulldozer lacks power
Problem manifestation: When the bulldozer is climbing or pushing soil during operation, it feels obviously lack of power and slow movement.
Possible reasons:
Insufficient engine power or lubrication system problems.
Insufficient hydraulic system pressure.
The track is loose or severely worn, resulting in high driving resistance.
Solution:
Check the engine oil pressure and cooling system, and replace the lubricating oil and coolant in time.
Adjust the track tension or replace the worn track.
3. Bulldozer driving deviation
Problem manifestation: The bulldozer deviates to one side when driving in a straight line, affecting the operation accuracy.
Possible reasons:
The tension on one side of the track is insufficient or the wear is uneven.
One side of the brake system fails.
The ground working environment is complex and the resistance is uneven.
Solution:
Check the track tension and adjust it to the standard value according to the manual.
Check and repair the brake system to ensure that the braking force on both sides is consistent.
When encountering complex terrain, adjust the operating force to reduce the resistance on one side.
4. The bulldozer is not flat or cannot be raised or lowered
Problem manifestation: The bulldozer cannot remain level when working, or the lifting and lowering are not sensitive.
Possible causes:
Insufficient hydraulic oil or hydraulic cylinder leakage.
Loose or worn bucket connection.
Failure of hydraulic valve group control.
Solution:
Check the hydraulic oil level and add hydraulic oil if necessary.
Check the hydraulic cylinder seal, repair the leak or replace the seal.
Check the bucket connection, tighten the bolts or replace the worn parts.
