Precautions for using high-pressure cleaning machines.

High-pressure cleaning machines use high-pressure water jets for efficient cleaning, but improper operation can lead to equipment malfunctions or personal injuries. When using them, it is essential to pay close attention to the following key points to ensure safety and effective cleaning results.

1. Inspect before operation.

Prior to activation, it is essential to conduct a thorough inspection of the equipment’s condition to confirm that the high-pressure hose is undamaged, the connections are securely sealed, and there is no risk of water leakage or hose detachment. Choose the appropriate nozzle based on the cleaning requirements. Different nozzles have varying water flow patterns (direct spray, fan-shaped spray), which correspond to different cleaning scenarios. Direct spray nozzles provide concentrated pressure suitable for stubborn stains, while fan-shaped nozzles offer a wide coverage area suitable for large-scale cleaning. Additionally, inspect the power source or driving mechanism; for electric models, ensure proper grounding is in place, and for fuel-powered models, check that the engine oil and fuel levels are sufficient.

2. Safety Protective Procedures

Operators must wear protective gear, including safety goggles, slip-resistant gloves, and waterproof shoes, to protect themselves from injuries caused by flying debris or chemical cleaners from high-pressure water streams. It is strictly forbidden to direct the spray nozzle at people, animals, or fragile objects. The impact force of high-pressure water streams can be extremely dangerous, potentially causing skin tears and damage to objects. During the cleaning process, it is essential to maintain a stable stance to avoid slipping due to counter-forces. The hose should be kept from excessive bending to prevent internal water pipes from bursting.

3. Usage and Maintenance Guidelines

It is strictly prohibited to operate equipment with an empty load for an extended period, as this will exacerbate the wear on the pump body and shorten its lifespan. If work needs to be suspended, the equipment should be shut down or switched to a de-loading mode. When using chemical cleaners, special formulations designed for high-pressure cleaners should be chosen to avoid corrosion of the pump and hoses by strong acids and bases. After cleaning, the pipes should be flushed with clean water to prevent residual cleaners from clogging the nozzles. Upon completion of work, the accumulated water in the hose should be promptly drained, especially in low-temperature conditions, to prevent the water pipes from freezing. Additionally, the equipment’s surface should be cleaned of any dirt, and it should be stored in a dry, well-ventilated area.

4. Taboos in Special Situations

Do not use high-pressure water jets to clean electrical equipment, conductive components, or precision instruments to prevent short-circuit faults. When operating electric models in humid environments, pay special attention to waterproofing to avoid electrical shock risks. When cleaning surfaces at high altitudes or heights, do not climb unstable supports; instead, use extendable poles to prevent accidents from falling.