The maintenance cycle of the high-pressure cleaner should be flexibly adjusted according to the frequency of use, working environment, and equipment type. Reasonable maintenance can extend the life of core components such as motors and pumps and avoid failures. The following are detailed maintenance cycle plans and key operating points:

I. Cleaning

Reasonable cleaning, maintenance, and upkeep will increase the service life of your machine. Please check and clean the machine regularly.

① Check and clean the wheel set, and remove any entangled objects;
② Regularly clean the inlet pipe filter to prevent excessive debris;
③ Regularly clean the inlet pipe, high-pressure pipe, and high-pressure water gun. If they need to be removed for storage, be sure to clean the joints.
Then seal them with clean plastic cloth/bags to prevent foreign objects such as sand from entering and prevent damage to the water pump, gun handle, and nozzle during the next operation.
Note: Do not rinse the machine directly with a water pipe. The machine is not a tightly waterproof device, and this behavior may cause a short circuit in your machine's circuit or burn out electrical components.

II. Maintenance

① Use a suitable container to collect used oil.
② Remove the drain plug, drain the oil from the pump, and then tighten the drain plug.
③ Unscrew the oil dipstick, add new oil to the appropriate oil level through the oil filler port, and then tighten the oil dipstick.
Note:

The oil in the high-pressure pump should be completely changed after the first 50 hours of use, and then every 500 hours; use 15W-40 gasoline engine oil;
When filling with oil, it needs to be filled to more than half of the oil level gauge scale.

III. Motor Maintenance

The motor should be periodically maintained and repaired, and faults should be dealt with in a timely manner. Generally, a minor maintenance should be performed once a month, and a major maintenance should be performed once a year.
Minor maintenance items include: cleaning the motor dust, measuring the insulation resistance; checking and cleaning the motor's wiring terminals;
Check whether the fixing bolts and grounding wires are firm; check the running sound and lubrication of the bearings; detect and clean the starting device and its insulation terminals.
Major maintenance items include: all minor maintenance content; motor content cleaning and inspection, cleaning the stator winding to be neat,
No oil stains, no bare copper, no inter-turn short circuit, phase-to-phase short circuit, grounding, etc.; check the rotor end ring, aluminum strip, and overhaul the stator and rotor core.
To ensure good lubrication of the motor during operation, the lubricating grease should be added or replaced approximately every 5000 hours of motor operation
(Sealed bearings do not need to have their lubricating oil replaced during their service life). If bearing overheating is detected during operation (the bearing temperature should be below 95°C)
or the lubricating grease deteriorates, the lubricating grease should be replaced in time.
When replacing the lubricating grease, remove the old lubricating grease and wash the oil groove of the bearing cover with gasoline, and then fill 2/3 of the cavity between the inner and outer rings of the bearing with lubricating grease.
When the bearing reaches the end of its life, the vibration and noise of the motor during operation will increase significantly, and the radial clearance of the bearing needs to be checked.