MAINTENANCE
Centurion 331020 (7--04)
86
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
mineral based hydraulic fluids available and one
synthetic hydraulic fluid available.
TENNANT part no.
Ambient
Temperature
65869--5
(Mobil no. DTE18M)
warmer climates
65870--5
(Mobil no. DTE13M)
colder climates
9000119
Synthetic fluid
(Mobil no. SHC--526)
all climates
The warmer climate fluid has a higher viscosity
and should not be used in the colder climate
states (see map). Damage to the hydraulic pumps
may occur because of improper lubrication. When
using warmer climate fluid, the machine should be
stored inside when the temperatures drop below
--1 C (30 F). If stored outside, only the PTO may
be enabled when temperatures are below --10 C
(15 F). The PTOs may not turn on when
temperatures are below --15 C (5 F).
The colder climate fluid is a thinner fluid for colder
temperatures.
Synthetic fluids offer several advantages. Their
operating life is three to four times longer than
mineral based fluids. Synthetic fluids can operate
in a wider range of extreme temperatures. This
feature is advantageous in states with wide
seasonal temperature changes. (See map). The
result is further increased component life.
NOTE: DO NOT Mix Synthetic Hydraulic Fluid
With Mineral Based Hydraulic Fluid.
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.
Colder Climate States