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Maintenance Section
Lubricant Viscosities and Refill
Capacities
Lubricant Viscosities
The proper oil viscosity grade is determined by the
minimum outside ambient temperature. This is the
temperature when the machine is started and while the
machine is operated. In order to determine the proper
oil viscosity grade, refer to the "Min" column in the
table. This information reflects the coldest ambient
temperature condition for starting a cold machine and
for operating a cold machine. Refer to the "Max"
column in the table in order to select the oil viscosity
grade for operating the machine at the highest
temperature that is anticipated. Unless specified
otherwise in the "Lubricant Viscosities for Ambient
Temperatures" tables, use the highest oil viscosity that
is allowed for the ambient temperature when you start
the machine.
Machines that are operated continuously should use
oils that have the higher oil viscosity in the final drives
and in the differentials. The oils that have the higher oil
viscosity will maintain the highest possible oil film
thickness. Consult your dealer if additional information
is needed. Refer to the appropriate Service Manual for
further information.