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Hydraulic System
Maintenance
Checking the Hydraulic
Fluid
Service Interval:
Before each use or daily Check the
level of the hydraulic fluid before
the engine is first started and daily
thereafter.
Hydraulic fluid specifications:
Toro Premium All
Season Hydraulic Fluid
Note:
Available in 19 L (5 US gallons) pails or 208 L
(55 US gallons) drums. See the parts catalog or your
Authorized Toro Distributor for part numbers.
Alternate hydraulic fluids: If the Toro fluid is not
available, other fluids may be used provided they
meet all the following material properties and industry
specifications. We do not recommend the use of
synthetic fluid. Consult with your lubricant distributor
to identify a satisfactory product.
Note:
Toro will not assume responsibility for damage
caused by improper substitutions, so use only
products from reputable manufacturers who will stand
behind their recommendation.
High Viscosity Index/Low Pour Point Anti-wear Hydraulic
Fluid, ISO VG 46
Material Properties:
Viscosity, ASTM D445
cSt @ 40°C 44 to 50
cSt @ 100°C 7.9 to 8.5
Viscosity Index ASTM
D2270
140 to 160
Pour Point, ASTM D97
-34°F to -49°F
Industry Specifications:
Vickers I-286-S (Quality Level), Vickers M-2950-S
(Quality Level), Denison HF-0
Important:
The ISO VG 46 Multigrade fluid has
been found to offer optimal performance in a wide
range of temperature conditions. For operation
in consistently high ambient temperatures, 18°C
(65°F) to 49°C (120°F), ISO VG 68 hydraulic fluid
may offer improved performance.
Premium Biodegradable Hydraulic Fluid-Mobil
EAL EnviroSyn 46H
Important:
Mobil EAL EnviroSyn 46H is the only
synthetic biodegradable fluid approved by Toro.
This fluid is compatible with the elastomers used
in Toro hydraulic systems and is suitable for a
wide-range of temperature conditions. This fluid is
compatible with conventional mineral oils, but for
maximum biodegradability and performance the
hydraulic system should be thoroughly flushed of
conventional fluid. The oil is available in 19 L (5
US gallons) pails or 208 L (55 US gallons) from
your Mobil Distributor.
1.
Position the sprayer on a level surface, engage
the parking brake, shut off the spray pump, shut
off the engine, and remove the key.
2.
Clean the area around the hydraulic-fluid-tank
dipstick cap and remove it (
).
g014217
Figure 90
1.
Hydraulic-fluid tank
3.
Dipstick cap
2.
Vent
Important:
Be very careful not to get dirt or
other contaminants into the opening when
checking the fluid.
3.
Wipe the dipstick clean with a cloth and replace
it completely in the tank.
4.
Remove the dipstick from the filler neck and
check the fluid level (
).
Note:
The fluid level should be within the
safe-operating range on the dipstick.
g014218
Figure 91
1.
Dipstick
2.
Safe-operating range
5.
If the fluid is low, fill the tank with the specified
hydraulic fluid or equivalent to raise the level to
the upper mark.
6.
Install the dipstick cap into the tank and secure.
68
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