PRECAUTIONS FOR LONG-TERM STORAGE
PREPARATION FOR LONG-TERM STORAGE
When putting the machine in storage for a long time (more than one month), do as follows.
• Clean and wash all the parts of the machine and store it indoors. If the machine has to be stored outdoors,
select a level ground and cover the machine with waterproof sheet.
• Fill up the fuel tank. This prevents dew condensation.
• Grease the machine and change the oil before storage.
• Fill up the DEF tank.
If the inside dries up, urea is deposited and it may cause failures in component operation.
• Coat the exposed portion of the hydraulic cylinder piston rod with grease.
• Turn the starting switch to OFF position, then turn the battery disconnect switch to OFF position.
When storing the battery, cover it.
For the operation of the battery disconnect switch, see “BATTERY DISCONNECT SWITCH (3-139)”.
•
To prevent rust, fill the cooling circuit with Non-Amine Engine Coolant (AF-NAC) to give a density of 30 % or
more for the engine coolant.
MAINTENANCE DURING LONG-TERM STORAGE
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.
Perform the following items when using the machine after long-term storage.
• Wipe off the grease from the piston rods of the hydraulic cylinder.
• 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.
• Check for rust on engine pulley and abnormality on belt.
If the surface of pulley where contacting with the belt is covered with too much rust, remove them with wire
brush.
• Turn the battery disconnect switch to ON position.
For the operation method, see “BATTERY DISCONNECT SWITCH (3-139)”.
• If the machine is stored for a long period with the battery disconnect switch at OFF position or the battery
terminal disconnected, the clock information and radio tuning information may be lost. In this case, set the
information again by referring to “CLOCK ADJUSTMENT (3-91)” and “HANDLE RADIO (3-270)”.
• If the machine has been stored for more than 2 months, perform the following procedure.
• Before starting the engine, replace the DEF filter and fill up the DEF tank.
OPERATION PRECAUTIONS FOR LONG-TERM STORAGE
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