MAINTENANCE
69
8210D 330210 (1--98)
HYDRAULIC FLUID
The quality and condition of the hydraulic fluid
play a very important role in how well the machine
operates. Tennant’s hydraulic fluid is specially
selected to meet the needs of Tennant machines.
Tennant’s hydraulic fluids provide a longer life for
the hydraulic components. There are two fluids
available for different temperature ranges:
Tennant part no.
Ambient Temperature
65869
above 7
_
C (45
_
F)
65870
below 7
_
C (45
_
F)
The higher temperature fluid has a higher
viscosity and should not be used at the lower
temperatures. Damage to the hydraulic pumps
may occur because of improper lubrication.
The lower temperature fluid is a thinner fluid for
colder temperatures.
If a locally-available hydraulic fluid is used, make
sure the specifications match Tennant hydraulic
fluid specifications. Using substitute fluids can
cause premature failure of hydraulic components.
ATTENTION! Hydraulic components
depend on system hydraulic fluid for
internal lubrication. Malfunctions,
accelerated wear, and damage will result
if dirt or other contaminants enter the
hydraulic system.
