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17. GUIDES TO MAINTENANCE
Fire prevention:
Use nonflammable cleaner or light oil for cleaning parts. Keep flame or cigarette light away from light
oil.
Clamp faces:
When O-rings or gaskets are removed, clean the clamp faces and replace the O-rings and gaskets with
new ones. Be sure to fit O-rings and gaskets when assembling.
Objects in your pockets:
Keep your pockets free of loose objects which can fall out and drop into the machinery; especially when
you work on the machinery while bending over it.
Checking undercarriage:
When working in rocky areas, check for damage to the undercarriage and for looseness, flaws, wear and
damage in bolts and nuts.
Precautions when washing machine:
‡ Never spray steam or water directly at the radiator.
‡ Do not allow water to get on any electrical component.
Pre-and post-work checks:
Before starting work in mud, rain, snow or at the seashore, check plugs and valves for tightness.
Wash the machine immediately after the work to protect components from rusting.
Lubricate components more frequently than usual. Be sure to lubricate work equipment pins daily if they
are submerged in water.
On jobsites where heavy-duty operations are common, reduce the maintenance intervals and carry out
greasing more frequently.
Dusty worksites:
When working at dusty worksites, do as follows:
‡ Check the dust indicator more frequently to see if the air cleaner is clogged. Clean the air cleaner
element at shorter intervals than specified.
‡ Clean the radiator core frequently to avoid clogging.
‡ Clean and replace the fuel filter frequently.
‡ Clean electrical components, especially the starting motor and alternator, to avoid accumulation of
dust.
Avoid mixing oils:
Never mix oils of different brands. If you have only oil which is a different brand from the one that is
used in the machine, do not add it but replace all the oil.
Greasing the rod end:
Because the rod end is of the oilless type, no greasing is required, although a grease nipple is fit to the
rod end on the lever linkage.
The rod end should be greased only when it becomes stiff after using it for long span of time.
Controller:
The controller for the machine monitor may be mistakenly actuated by interference from external electric
waves. For this reason, when installing a radio or other such device, please consult your Komatsu
distributor.