Komatsu PC700LC-11, Operation & Maintenance Manual

Page: 302 / 442

PRECAUTIONS FOR LONG-TERM STORAGE
PREPARATION FOR LONG-TERM STORAGE
NOTICE
When storing the machine (1 month or more), set the ma-
chine in the posture shown in the figure to protect the cyl-
inder rods.
(To prevent the cylinder piston rods from rusting)
When putting the machine in storage for a long time (more than 1 month), do as follows.
• Clean and wash all 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.
• Fill up DEF tank (Except cold weather condition). If the inside dries up, urea is deposited and it may cause
failures in component operation.
• Grease the machine and change the oil before storage.
• Coat the exposed portion of the hydraulic cylinder piston rod with grease.
• Turn the starting switch to OFF position and turn the battery disconnect switch key to OFF position, and
remove it. When storing the battery, cover it.
• Set the attachment control pedal to the lock position on the machines ready for attachments.
• If the machine is ready for installation of attachment, set the stop valve to the LOCK position. Install the
blind plugs to the elbows.
• 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
k k
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 hydraulic cylinder piston rods.
• Add oil and grease at all lubrication points.
PRECAUTIONS FOR LONG-TERM STORAGE OPERATION
3-236