.
MAINTENANCE
OUTLINE OF SERVICE
OUTLINE OF SERVICE
HANDLING OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC
OIL
Oil is used in the engine and work equipment under extremely severe conditions (high temperature, high
pressure), and deteriorates with use.
Always use oil that matches the grade and temperature for use given in the Operation and Maintenance Manual.
Even if the oil is not dirty, always change the oil after the specified interval.
Oil corresponds to blood in the human body, so always be careful when handling it to prevent any impurities
(water, metal particles, dirt, etc.) from getting in.
The majority of problems with machines are caused by the entry of such impurities.
Take particular care not to let any impurities get in when storing or adding oil.
Never mix oils of different grades or brands.
Always add the specified amount of oil.
Having too much oil or too little oil are both causes of problems.
If the oil in the work equipment is not clear, there is probably water or air getting into the circuit. In such cases,
please contact your Komatsu distributor.
When changing the oil, always replace the related filters at the same time. When replacing the engine oil filter,
fill the new filter with the specified clean oil, then install it.
We recommend you have an analysis made of the oil periodically to check the condition of the machine. For
those who wish to use this service, please contact your Komatsu distributor.
At the time of shipping from the factory, SAE1OWCD is used for hydraulic type of oil.
FUEL
The fuel pump is a precision instrument, and if fuel containing water or dirt is used, it cannot work properly.
Be extremely careful not to let impurities get in when storing or adding fuel.
Always use the fuel specified in the Operation and Maintenance Manual.
Fuel may congeal depending on the temperature when it is used (particularly in low temperature below -15°C (5
°F), so it is necessary to change to a fuel that matches the temperature.
To prevent the moisture in the air from condensing and forming water inside the fuel tank, always fill the fuel tank
after completing the day's work.
Before starting the engine, or when 10 minutes have passed after adding fuel, drain the sediment and water from
the fuel tank.
If the engine runs out of fuel, or if the filters have been replaced, it is necessary to bleed the air from the circuit.
The engine mounted on this machine employs electronic control and a high-pressure fuel injection system to
obtain good fuel consumption and good exhaust gas characteristics. For this reason, it requires high precision
for the parts and good lubrication. If kerosene or other fuel with low lubricating ability is used, there will be a big
drop in the durability, so do not use such fuel.
COOLANT
River water contains large amount of calcium and other impurities, so if it is used, scale will stick to the engine and
radiator, and this will cause defective heat exchange and overheating.
Do not use water that is not suitable for drinking.
When using antifreeze, always observe the precautions given in the Operation and Maintenance Manual.
Komatsu machines are supplied with Komatsu original antifreeze in the coolant when the machine is shipped.
This antifreeze is effective in preventing corrosion of the cooling system.
Change the antifreeze periodically. For details, see "CLEAN INSIDE OF COOLING SYSTEM (PAGE 4-23)".
Antifreeze is flammable, so be extremely careful not to expose it to flame or fire.
4 - 4
To Next Page
Loading...
Need help?
General
