10
Repair and Maintenance (continued)
REPLACEMENT OF LUBRICATING OIL
Run the pump with water for five (5) minutes and then shut it down before replacing the engine’s lubricating oil. This ensures the quick and
complete release of the lubricating oil.
□
Check if the oil tank cover is tightened.
□
Unscrew the engine oil plug and tilt the engine towards the
cylinder head cover, drain the oil into an appropriate container
and then screw up the engine oil plug.
□
Unscrew the oil fill and dipstick, fill the recommended
lubricating oil through the oil filler and check the oil level (no
more than 600 ml).
Precautions:
□
It is recommended to replace the lubricating oil when there is no or little fuel in the fuel tank in case of fuel overflowing from the fuel
tank when the engine is tilted.
□
In case of lubricating oil overflowing, make sure to wipe off the oil. Wash hands with soap and water or detergent after contacting the
lubricating oil, and then wash hands with clean water.
□
Please dispose the waste lubricating oil and containers with methods in compliance with environmental protection requirements. It is
suggested to store the waste lubricating oil into a sealed container and deliver it to the local waste oil recycle bin for treatment. It is
forbidden to directly throw it into the dustbin or pour it into water.
MAINTENANCE OF AIR FILTER
The function of the air filter is to filtrate impurities and dust in the air so as to mix clean air with fuel for the sake of stable engine
performance. The dirty air filter will make the impurities and oil stains cover the element of the air filter, reduce the air capacity required by
the combustion of gasoline engine, and cause the disproportion of gas mixture, abnormal combustion and engine performance attenuation.
DANGER:
Do not use gasoline or cleaning agent with low ignition point to clean the filtering element of the air filter, as a fire or explosion
may occur.
WARNING:
Some solid impurities of high hardness directly into the combustion chamber of the engine will cause irretrievable fatal
damage to the engine. Therefore, the maintenance frequency shall be increased if the engine is used at a place with high dust content.
CAUTION:
It is strictly prohibited to operate the gasoline engine in the case of not installing the filtering element of the air filter as it may
accelerate the wear and damage of the gasoline engine
□
The air filter of the engine is of a double-element structure (foam + paper). For the purpose of inspection, remove the air filter casing
and take out the filter element. The damaged filter element shall be duly replaced and usually replaced once during the maintenance.
□
Cleaning the foam filter element: Wash the foam filter element with cleaning agent, swish it after cleaning with fresh water, and air
dry before operation.
□
Cleaning the paper filter element: Lightly beat the filter element several times, and blow air from the inside to the outside with
compressed air (not exceeding 30 psi). Never use items such as a brush to clean the paper filter element.
Engine oil plug
Air cleaner base
Air cleaner cover
Foam filter element
Paper filter element