Maintenance Section
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Lubricant Information
Lubricant Information
Certain abbreviations follow Society of Automotive
Engineers (SAE) J754 nomenclature and some
classifications follow SAE J183 abbreviations.
The MIL specifications are U.S.A. Military
Specifications.
The recommended oil viscosities can be found in the
Lubricant Viscosities chart in this publication.
Grease is classified by the National Lubricating
Grease Institute (NLGI) based on ASTM D217-68
Worked Penetration characteristics which are given a
defined consistency number.
Engine Oil (DEO and EO)
The following oil specifications provide guidelines for
the selection of commercial products:
• Gasoline/LP Engine: API SJ or higher
NOTE:
Engine Oil Service hours can be extended
to 500 hours by using Doosan supplied
specific oil. Please consult Doosan dealer
about it.
• Diesel Engine:
API CJ-4 for 500 hrs service interval
API CK-4 for 1000 hours service interval
NOTICE
Failure to follow the oil recommendations can cause
shortened engine lift due to carbon deposits or
excessive wear. Especially for DM02VA, DM02P
engine, API CJ/CK-4 engine oil should be used,
because of EGR, DOC and DPF performance.
Consult the EMA Lubricating Oils Data Book for a
listing of oil brands.
NOTE: The percentage of sulfur in the fuel will affect
the engine oil recommendations.
NOTE: For fuel sulfur effects, the Infrared Analysis
or the ASTM D2896 procedure can be used
to evaluate the residual neutralization
properties of engine oil. The sulfur products
formation depends on the fuel sulfur content,
oil formulation, crankcase blow-by, engine
operating conditions and ambient
temperature.
Hydraulic Oil (HYDO)
The following commercial classifications can be used
in the hydraulic system.
• ISO 6743/4 HM
• AFNOR NFE 48-603 HM
• DIN 51524 TEIL 2 H-LP
• HAGGLUNDS DENISON HFO-HF2
• CINCINNATI P68,69,70
Viscosity: ISO VG32
Industrial premium hydraulic oils that have passed
the Vickers vane pump test (35VQ25).
These oils should have antiwear, antifoam, antirust
and antioxidation additives for heavy duty use as
stated by the oil supplier. ISO viscosity grade of 32
would normally be selected.
NOTICE
Make-up oil added to the hydraulic tanks must mix
with the oil already in the systems. Use only
petroleum products unless the systems are equipped
for use with special products. If the hydraulic oil
becomes cloudy, water or air is entering the system.
Water or air in the system will cause pump failure.
Drain the fluid, retighten all hydraulic suction line
clamps, purge and refill the system. Consult your
DOOSAN Lift Truck dealer for purging instructions.
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