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5. LUBRICATING OIL
5.1 USE OF LUBRICATING OIL ACCORDING TO TEMPERATURES
Use of lubricating oil should vary with changes in temperature.
• A specified oil quantity is defined as a total quantity of oil including that for unit piping, and a replacement
oil quantity is defined as a quantity of oil to be replaced at inspection and maintenance.
• Always use SAE10W-CD, SAE10W-30CD, or SAE10W-40CD to start the engine with temperature at
0°C or below despite rise in diurnal temperature to approx. 10°C.
• Be sure to use our recommended abrasion-resistant hydraulic oil for the hydraulic oil system; ISO VG46
and VG32.
”Nippon Oil Super Highland 32” is adopted for a hydraulic oil system as factory default.
• For adjustment of antifreeze concentrations in coolant with temperature at -10°C or below, see
“Maintenance 8.11 Every 1000 Hours [2] Cleaning Engine cooling system.
CAUTION
• Molybdenum disulfide filled grease is to be applied to the boom slide plate (top), both sides
and bottom of the boom.
• Do not apply molybdenum disulfide filled grease to the slewing bearing.