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MAINTENANCE NOTES
4.2 MAINTENANCE NOTES
4.2.1 NOTES REGARDING THE ENGINE
4.2.1.1 ENGINE OIL
4.2.1.2 COOLANT
• Use only Komatsu Utility genuine spare parts.
• Do not mix different types of oil.
• Unless specified otherwise, the oils and the coolant used by Komatsu Utility to fill the tanks before the delivery
of the machine are the following:
ITEM SPECIFICATIONS
• Engine oil SAE 15W-30
API classification CD
• Hydraulic system oil SAE 10W
API classification CD
• Biodegradable hydraulic system oil
(Only for machines in which the synthetic biode-
gradable oil type HEES not of plant origin is used)
SHELL NATURELLE HFX-32
• Travel reduction gear oil SAE 10W
API classification CD
• Swing reduction gear oil
(for PC27R only)
SAE 10W
API classification CD
• Fuel With ambient temperature over –10° C:
ASTM D975 no. 2 diesel oil
With ambient temperature under – 10°C:
ASTM D975 no. 1 diesel oil
• Radiator Permanent, ethylene glycol-based antifreeze, with
corrosion inhibitor for protection up to -36°C
• The engine oil must be selected very carefully, since it lubricates the engine, which is the machine’s heart; the
main maintenance operations required for the engine oil are the following:
1 - daily check of the oil level;
2 - check of the oil pollution degree;
3 - periodical change.
• The coolant serves to keep the engine at the correct temperature and therefore to ensure optimal operating
conditions; check the coolant level in the expansion tank daily and top up if necessary.
• The coolant containing antifreeze is flammable; do not use naked flames near the coolant and do not smoke
while topping up.
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