When using a pit digger, common operational errors include the following aspects

When installing the piston, open flame heating: Open flame heating has a relatively high temperature. During the natural cooling process, the metal structure will be damaged, reducing the wear resistance and service life of the piston

Changing lubricating oil without cleaning the oil passage: If lubricating oil is injected without cleaning the oil pan or the oil delivery passage, impurities will accelerate the wear of machine parts, and even lead to bearing seizure and shaft seizure accidents

Installing the cylinder gasket and applying grease: When grease is exposed to high temperatures, it melts and flows away, causing air leakage in the cylinder, damage to the cylinder gasket, and also making the cylinder gasket age and deteriorate, increasing the difficulty of installation and disassembly

When tightening the connecting rod screws, do not use a torque wrench: Excessive force can cause internal stress in the connecting rod screws, leading to excessive fatigue of the metal and breakage, which may result in locomotive accidents

Not installing an air filter while driving: Not installing an air filter will cause a large amount of dust to be sucked into the cylinders by the engine, accelerating engine wear and reducing engine power

Improper operation: Failure to operate in accordance with the manual, such as overloading, operating the hydraulic rod in violation of regulations, and not switching the operation mode in time, can easily cause malfunctions

Insufficient maintenance: Failure to carry out regular maintenance, such as not replacing the engine oil and filter elements in time, and neglecting the inspection and maintenance of vulnerable parts like tracks and buckets, will accelerate component wear and lead to malfunctions

External environmental influence: Working for a long time in high-temperature, extremely cold, dusty or rough areas can easily damage the engine, electrical system, etc., causing malfunctions

Other incorrect operations: such as sanding with sandpaper instead of scraping, too high tire pressure, inaccurate measurement between cylinders, tightening bolts too hard, and not changing engine oil for a long time, etc

To avoid these incorrect operations, it is recommended to strictly follow the instructions for operation and maintenance, and conduct regular professional inspections and maintenance.