Morooka MST-800VD, Руководство по эксплуатации и техническому обслуживанию

Страница: 96 / 134

3-2
1. BASIC OUTLINE OF MAINTENANCE
[1] OIL
• Oil is used under extremely heavy-duty conditions (high temperature, high pressure) in the engine, hydraulic pump, motor,
and work equipment. Therefore, it deteriorates as time passes.
Always use the grade of oil and the oil which matches the ambient temperature listed in this operation manual.
Even if the oil is not dirty, always change it at the specified interval.
• When adding oil, do not mix oils of different grades or brands.
• Always add oil to the specified oil level. Too much oil and too little oil are both the cause of problems.
• When changing the oil, always replace the related oil filter at the same time.
• Always be careful when handling oil to prevent water, dirty, or other impurities from getting into the oil.
A large proportion of problems with the machine are caused by impurities getting into the oil, so be extremely careful not to let
impurities get into the oil: always store the oil indoors and carry out oil-filling operations in a dust-free environment.
• If the oil is a milky white, there is probably water or air in the circuit. In such cases, please contact your distributor.
[2] FUEL
• Do not use any fuel except diesel oil.
• Always use the fuel specified for the ambient temperature listed in this operation manual.
• The fuel pump is a precision instrument, so if fuel containing water or dirt is used, the fuel pump will stop working. Be extremely
careful not to let impurities get into the fuel: always store the fuel indoors and carry out refueling operations in a dust-free
environment.
• If fuel is stored in drum cans, store the drum cans on their sides so that the ports in the drum cans are in a straight line to the
side. This action will prevent damp air from being sucked in.
• To prevent moisture in the air from getting into the fuel tank, always fill the tank after the completion of each day's work.
• If the machine runs out of fuel, or when the fuel filter has been replaced, it is necessary to bleed the air the circuit.
Always read the separate operation manual for the engine when carrying out this operation.
[3] COOLANT
• Do not use river water, well water, or water from simple water lines as the coolant.
Such kinds of water contain many impurities, such as calcium and dirt, so scale will collect inside the engine and radiator. This
will cause improper heat exchange, and will lead to overheating.
• If the engine overheats, allow the engine to cool down, then add coolant.
• When using antifreeze, always follow the precautions given in the operation manual.
[4] GREASE
• Grease is used at the connecting points of the dump body or travel lever linkage to prevent gouging or noise.
• The grease nipples not listed in this manual are nipples used for overhaul, so there is no need to add grease to them.
However, if any gouging or noise occurs during use, add grease.
• When adding grease, pump in grease until the old grease is completely forced out, then wipe off all the old grease. Be
particularly careful to wipe off the grease at points where mud and dirty may stick and cause wear of the rotating parts.