FUEL, COOLANT AND LUBRICANTS
199
q
When the diesel sulphur content is less than 0.5%, change the engine oil according to the periodic main-
tenance intervals indicated in the operation and maintenance manual. If the sulphur content exceeds
0.5%, change the engine oil according to the following table:
q
It is advisable to use only engine oil with API CF classification in order to ensure the correct operation and con-
stant reliability of the engine.
q
Use Komatsu genuine products whose characteristics have been specifically formulated and approved for use in
the engine, in the work equipment hydraulic circuit, and in the reduction gears.
First filling quantity: total quantity of oil, including the oil for the components and pipes.
Oil change quantity: quantity of oil necessary to fill the system or unit during the normal inspection and mainte-
nance operations.
ASTM: American Society of Testing and Materials
SAE: Society of Automotive Engineers
API: American Petroleum Institute
UTTO: Universal Tractor Transmission Oil
NLGI: National Lubricant Grease Institute
EN: European Norm
4.4.1 COOLANT
Use only original Komatsu coolant (AF-NAC), which should be diluted according to the minimum atmospheric tem-
perature following the table below:
q
The percentage of original Komatsu coolant (AF-NAC) should never be below 30% in order to avoid corrosion.
Sulphur content Engine oil change interval
from 0.5 to 1.0%
over 1.0%
1/2 of regular interval
1/4 of regular interval
Minimum
atmospheric
temperature
°C above -10 -15 -20 -25 -30 -35 -40
Coolant quantity
litres 1.25 1.5 1.75 1.95 2.1 2.25 2.45
Water quantity
litres 2.95 2.7 2.45 2.25 2.1 1.95 1.75
Volume percentage
%30364146505458
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