Komatsu D375A-8, Operation & Maintenance Manual

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PRECAUTIONS FOR LONG-TERM STORAGE
PREPARATION FOR LONG-TERM STORAGE
When putting the machine in long-term storage (more than one month), store it as follows.
• Clean and wash all parts of the machine and store it indoors. If the machine has to be stored outdoors,
place it on a level ground and cover it with tarpaulins.
• Fill up the fuel tank. This prevents dew condensation.
• Grease the machine and change the oil before storage.
• Apply thin film of grease to metal surface of the hydraulic piston rods and the idler adjusting rods.
• As for the battery, turn the starting switch to OFF position, check that the system operating lamp goes out,
turn the battery disconnect switch key to OFF position, and pull out and keep it.
• Place all control levers in NEUTRAL position, place the work equipment lock lever and parking brake lever
in LOCK position, and set the fuel control dial to Low idle (MIN) position.
• To prevent rust, fill the cooling circuit with Non-Amine Engine Coolant (AF-NAC) to give a density of at least
30 % for the engine coolant.
MAINTENANCE DURING LONG-TERM STORAGE
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WARNING
If it is necessary to perform the rust-prevention operation while the machine is indoors, open the doors
and windows to improve ventilation and prevent gas poisoning.
• During storage, operate and move the machine for a short distance once a month so that a new film of oil
will coat moving parts. At the same time, charge the battery as well.
• When operating the work equipment, wipe off all the grease from the hydraulic cylinder rods.
• If the machine is equipped with an air conditioner, operate the air conditioner for 3 to 5 minutes once a
month to lubricate all parts of the air conditioner compressor. Always run the engine at low idle when doing
this. In addition, check the refrigerant level twice a year.
STARTING MACHINE AFTER LONG-TERM STORAGE
NOTICE
If the machine has been stored without performing the monthly rust-prevention operation, consult your
Komatsu distributor before using it.
When using the machine after long-term storage, perform the following items before using it.
• Wipe off the grease from the hydraulic cylinder rods.
• Add oil and grease at all lubrication points.
• When the machine is stored for a long period, moisture in the air will mix with the oil. Check the oil before
and after starting the engine. If there is water in the oil, change all the oil.
• Insert the battery disconnect switch key and turn it to ON position.
• If the machine is stored for a long period with the battery disconnect switch OFF or the battery terminal dis-
connected, the clock information and radio tuning information may be lost. In this case, set them again. For
detail, see “CLOCK ADJUSTMENT” and “HANDLE RADIO”.
OPERATION PRECAUTIONS FOR LONG-TERM STORAGE
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