Baroness LM531, Owner'S Operating Manual, Page: 88 / 96

Change of Hydraulic Oil
Caution
When you change the hydraulic oil, be sure to
drain it into a bowl and discard it in
accordance with local laws and regulations.
Caution
If the oil emulsifies or if it becomes even
slightly less transparent, change the oil
immediately.
Caution
Be careful with hot oil, which could cause
burns if it contacts your skin.
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
Follow the steps below to remove the old oil.
Start and run the engine to warm up the
oil.
On a level surface, lower the mower units,
and then stop the engine.
1.
[1]
[2]
Remove the drain plug of the hydraulic
tank, and then drain the old oil into a
container.
Wind new sealing tape on the drain plug,
and then attach it to the hydraulic tank.
1
2
pfdche-008
Change of Hydraulic Oil_001
1 Hydraulic tank
2 Drain plug
Follow the steps below to pour new oil.
The hydraulic tank capacity is approximately
35.0 dm
3
(35.0 L).
Release the catch clip and open the
center cover.
1
2
dmhzyz-016
Change of Hydraulic Oil_002
1 Catch clip
2 Center cover
[3]
[4]
2.
[1]
LM531
Maintenance
Page 5-20
Maintenance Work