May.20,2026
Excavator accessory manufacturers stipulate that every qualified construction machinery operator must master not only operation skills but also basic maintenance and simple repair of the machine. Many operators are at a loss when facing minor faults.
Machinery, like humans, may have minor problems. Some people say excavator apprentices should learn from machines with frequent problems, and we agree. Operators can gradually master maintenance skills through frequent troubleshooting, so they will not be helpless when problems occur.
A common problem is that the excavator cannot start. This is usually caused by engine internal faults, such as valve leakage, excessive piston ring clearance, or insufficient compression temperature. Such faults cannot be fixed by ordinary operators. It is not recommended to use engine starting spray. Although effective, it will make the engine dependent on it, just like addiction.
