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[5] FILTER HANDLING
• A filter is an extremely important part that keeps major equipment free from impurities in oil, fuel, and the air
circuit, which prevents an associated failure. Periodic replacement of the filter is required in accordance with
the Operation Manual. The replacement period should be shortened in responses to harsh operating
environments or the oil used.
• Do not reuse any washed filters (cartridge type one) under any circumstances.
• After replacing an oil filter, check the used filter for any metal powder.
If check finds metal powder on the used filter, c
ontact us or our sales service agency.
• As to a replacement filter, always unpack it immediately prior to its use.
• Always use Maeda genuine filters.
[6] COOLANT HANDLING
• The river water contains a large amount of calcium and impurities. Use of the river water results in
accumulation of water stain in the engine and radiator, which causes heat exchange error leading to overheat.
Do not use any non-potable water.
• Always use antifreeze following precautions stated in the Operation Manual.
• Keep antifreeze from flame. Antifreeze is a flammable solution.
• The mixing proportion of antifreeze varies with outside air temperature. See “Maintenance 8.11 Every 1000
Hours [2] Cleaning engine cooling system” for the mixing proportions.
• In the event of overheating, replenish coolant with the engine cold.
• The machine low in coolant may cause overheating and corrosion attributed to aeration.
[7] ELECTRICAL PART HANDLING
• The electrical parts are susceptible to water damage and damaged coating. A current leakage is developed if
the electrical parts are wetted or have damaged coating, which causes the machine to go out of order and
malfunction. Exercise due caution to handle the electrical parts.
• Inspection and maintenance include the checking of belt tension, belt damage, and battery electrolyte level.
• Never remove and disassemble equipment (electrical parts) from the machine.
• Only optional electrical parts that accompany the machine can be installed.
• Keep the electrical parts away from water when the machine is washed and used in the rain.
• When using the machine at the seashore, keep the electrical parts free of water and impurities to prevent
corrosion.
[8] HYDRAULIC EQUIPMENT HANDLING
• Hydraulic equipment will be at elevated temperatures during and immediately after operation. Hydraulic
equipment operates under high pressure. The following precautions should be observed when performing
inspection and maintenance of hydraulic equipment.
• Place the machine in travel position on a level surface to inhibit the application of pressure to the cylinder circuit.
• Be sure to stop the engine.
• Hydraulic oil and lubricating oil will be at elevated temperatures and high pressure immediately after equipment comes to
a stop. Perform inspection and maintenance only after the oil drop in temperature for safety. An internal pressure may be
exerted despite temperature drop. When removing the plugs, screws and hose joints, stand aside and provide gradual
loosening to decompress.
• Be sure to remove the pressure releasing air from the hydraulic oil tank before performing inspection and maintenance of
the hydraulic circuit.
• Inspection and maintenance include hydraulic oil level check and replacement of the filters and hydraulic oil.
• Check the O-ring for scratches when removing the high-pressure hose. If check finds scratches, replace the
O-ring.
• Air bleed of the hydraulic circuit is required after the following tasks are performed: replacement and cleaning
of the hydraulic oil filter element and strainer, repair and replacement of hydraulic equipment, and hydraulic
piping replacement.
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