Hydraulic Oil Supply
Important
Do not mix different types of oil.
Important
Use Shell Tellus S2M46 (or equivalent) as
hydraulic oil.
In case of an equivalent, consult
Characteristics of Hydraulic Oil and use
hydraulic oil whose characteristics are
superior to those of the specific hydraulic oil.
Especially regarding kinematic viscosity and
viscosity index, use of hydraulic oil whose
figures are less than those of the specified
hydraulic oil will cause a malfunction in the
hydraulic circuit.
Note:
Characteristics of Hydraulic Oil
Specified Hydraulic Oil
Shell Tellus S2M46
ISO Viscosity Grade
ISO VG46
Density
15 °C (59 °F)
0.873 g/cm
3
(0.0315 lb/in
3
)
API Gravity
30.6
Flash Point (Open Cup)
230 °C (446 °F)
Pour Point
-30 °C (-22 °F)
Kinematic
Viscosity
40 °C (104 °F)
46 mm
2
/s (46 cSt)
100 °C (212 °F)
7 mm
2
/s (7 cSt)
Viscosity Index
109
If the oil level is low, remove the left tank
cover, and then open the tank cap and
supply oil.
1
2
dmhzyz-013
Hydraulic Oil Supply_001
1
Tank cap
2
Oil gauge
Tighten the tank cap securely.
1.
2.
Start the engine, raise and lower the mower
decks, and turn the steering wheel left and
right.
Move forward and reverse repeatedly
several times.
Raise the mower decks and maintain that
position on a level surface, and then check
to see if the oil level is at the middle of the
oil gauge. If necessary, supply oil.
Check underneath the machine for oil
leakage.
Attach the left tank cover.
Hydraulic Hoses
Inspection of Hydraulic Hoses
Warning
When checking the hydraulic circuit for
pinhole leaks or oil leakage from nozzles, do
not use your hands. Use items such as paper
or corrugated cardboard to find leakage
points.
Be extremely careful with high-pressure oil as
it may pierce your skin, resulting in personal
accidents.
If fluid is injected into the skin it must be
surgically removed within a few hours by a
doctor familiar with this form of injury or
gangrene may result.
Check the pipes and hoses to make sure that
there is no oil leakage, circuit damage,
looseness, wear, connector looseness,
weather deterioration and chemical
deterioration.
Make any necessary repairs before operating
the machine.
3.
4.
5.
6.
Handling Instructions
GM2810A
Handling Instructions
Page 5-7
Inspection and Cleaning