The maintenance of the pressure washer is divided into three levels. A) The first level is the daily maintenance performed by the operator, including regular inspection of the normal working status of each component, and whether the connectors and fasteners are installed correctly and intact to ensure that There are no faulty parts; b) The second level is to regularly check the valves, joints, spray guns and other parts in the equipment. This work can be performed by the operator under the guidance of professional and technical personnel in accordance with conventional maintenance procedures; c) the third level is the pump and The maintenance of important parts and components of the equipment must be performed in accordance with the prescribed procedures and in accordance with the requirements of the equipment manufacturer, and must be completed by professional and technical personnel.

 

I. Maintenance rules for high pressure washer

 

Equipment maintenance procedures must specify the wearing parts in the equipment; special maintenance inspections should be performed on the jet parts when the equipment is assembled before the cleaning operation and the equipment is disassembled after the cleaning operation to ensure its normal operation, and each connection should be checked every time Threads and other internal parts that the operator usually does not observe; the complete set of equipment must be inspected and necessary routine maintenance at least in accordance with the requirements of the manufacturer.

Second, power equipment

The power equipment must be inspected every day to ensure the normal supply of fuel, oil, medium and cooling water; the belt should be tight and appropriate without damage such as peeling and cracking; all protective devices are safe and reliable without damage. The control cables and prime mover controls must be checked daily.

Three, water

Check the pump's low-pressure water inlet pipe before starting. The high-pressure pump can be equipped with a front pump to ensure a certain water pressure and proper flow of water. During the operation, there should be sufficient water supply in the water tank, and there should be no rust or dirt in the water tank. Filters must be inspected regularly to ensure they are not blocked and damaged. When checking and replacing the cleaning filter, prevent solid particles from entering the pump and the spray head through the water inlet pipe. The filtering accuracy and filtering area of ​​the screen should be compatible with the requirements of the equipment for water quality and quantity.

Fourth, hose assembly

The hoses and joints are very important to the operation of the equipment. It must be inspected for wire breaks, damage caused by compression or abrasion, and blisters caused by internal cracks.

The hose wound on the winch must not be excessively bent to avoid being crushed or damaged; the winch should have sufficient lubricant and a good seal to ensure its normal use.

V. Nozzle

Before the nozzle is installed, water should be used to flush the equipment pipeline to ensure that the nozzle is not blocked and damaged, the nozzle connection thread is intact and no damage; all damaged jet parts must be repaired or replaced before operation.

Six, the valve

Before operation, the control valve, pressure regulating valve (overflow relief valve), and safety valve must be inspected to ensure their cleanliness and performance. Periodic commissioning inspection of various valves should be carried out to repair or replace damaged parts of various valves in time.

Electrical equipment

Special protection is required for electrical equipment. Before operation, all electrical boxes, connectors, knobs, cables, instruments, and meters must be inspected for damage; this inspection should be performed once a day to ensure that it will not be damaged by water or abrasives during operation; all wire connections must be properly Placement; the motor must be properly steered for the first time or after each rewiring.

Trailer

Check the support, connections, wheels (tires), etc. of the trailer before each operation to keep it intact.

Nine, special tools

The assembly and disassembly of high-voltage components should use special tools provided and recommended by the manufacturer.

 

Ten, antifreeze measures

When the equipment is used in a cold environment, antifreeze measures must be added. The specific method is: remove the spray gun (spray head), insert the outlet pipe into the water supply tank, start the cycle, and circulate the antifreeze in the equipment pipeline.