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MAINTENANCE
ABBREVIATIONS
3
HDTF
Komatsu heavy duty transmission fluid or equivalent, see "DRIVE TRAIN OIL SPECIFICATIONS" on page 3-9.
EO1
Komatsu engine oil or multigrade diesel engine oil, see "ENGINE OIL SPECIFICATIONS" on page 3-8
EO2
(For service only) Komatsu hydraulic fluid or engine oil API CD/CC, CD or MIL-L-2104 and passing TO-2 and
C-3 test with 0.10% minimum zinc.
MPL
Komatsu gear lube or multi purpose gear lube, see "FINAL DRIVE OIL OR PIVOT SHAFT HOUSING SPEC-
IFICATIONS" on page 3-9.
MPG
Komatsu super grease or multi purpose grease 251 HEPM or NLGI grade #2 multi purpose lithium grease with 3
to 5% MoS
2
HTF
(For service only) Komatsu hydraulic transmission fluid.
DF
Diesel fuel Grade 1 or 2 depending on ambient temperature, see "FUEL SYSTEM" on page 3-12.
SAE:
Society of Automotive Engineers
API:
American Petroleum Institute
ENGINE OIL SPECIFICATIONS
3
NORMAL OPERATION
3
Oil performance recommendations are as follows:
•
The use of a quality engine lubricating oil combined with appropriate oil and filter change intervals are critical factors in
maintaining engine performance and durability.
•
Komatsu Engine Oil or multi viscosity engine oil meeting API performance classification CF-4, CG-4, CF-4/SG or CG-4/
SH or MIL-L-2104D or E is recommended.
NOTE
Classification CD, CE, CD/SF or CE/SF oils may be used in areas where CF-4, CG-4, CF-4/SG or CG-4/SH oil is not yet
available. If API classification CC or CC/CD is used, reduce the engine oil change interval by half.
•
A sulfated ash limit of 1.0 to 1.5 mass percent is suggested for optimum valve and piston deposit and oil consumption
control. The sulfated ash must not exceed 1.85 mass percent. The sulfated ash limit of 1.85 mass percent has been placed
on all engine lubricating oils recommended for use in the engine. Higher ash oils can cause valve and/or piston damage
and lead to excessive oil consumption.
•
The API service symbol displays the following information. The upper half of the symbol displays the appropriate oil cat-
egories; the lower half may contain words to describe oil energy conserving features. The center section identifies the
SAE oil viscosity grade.
Oil viscosity recommendations are as follows:
•
The use of a multi-grade lubricating oil has been found to improve oil consumption control and improve engine cranking
in cold temperatures while maintaining lubrication at high operating temperatures. While SAE 15W-40 multi-viscosity oil
is recommended for most operating climates, refer to the previous table for oil viscosity recommendations for extreme cli-
mates.
NOTE
Limited use of low viscosity oils, such as SAE 10W-30 may be used for easier starting and providing sufficient oil flow at
ambient temperatures below -5°C (+23°F). However, continuous use of low viscosity oils can decrease engine life due to
wear.
3-8
(molybdenum disulfide).
NLGI: National Lubricating Grease Institute
ASTM: American Society of Testing and Materials
D87E-2 D87P-2
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