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Checking the Hydraulic
Fluid
Service Interval: Before each use or daily
The machines reservoir is filled at the factory with
approximately 30 L (8 US gallons) of high-quality
hydraulic fluid. Check the level of the hydraulic fluid
before the engine is first started and daily thereafter.
The recommended replacement fluid is as follows:
Toro Premium All Season Hydraulic Fluid (Available in
19 L (5 US gallon) pails or 208 L (55 US gallon) drums. See
the Parts Catalog or your Toro Distributor for part numbers.)
Alternate 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 does not assume responsibility for
damage caused by improper substitutions, so use
only products from reputable manufacturers who
stand behind their recommendation.
High Viscosity Index/Low Pour Point Anti-wear Hydraulic
Fluid, ISO VG 46
Material Properties:
Viscosity, ASTM D445
Viscosity Index ASTM D2270 140 to 160
Pour Point, ASTM D97
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 gallon) containers or 208 L (55 US gallon)
drums from your Mobil Distributor.
cSt @ 40°C 44 to 50
cSt @ 100°C 7.9 to 8.5
-36.6°C (-34°F) to 9.4°C
(-49°F)
Important:
Many hydraulic fluids are almost
colorless, making it difficult to spot leaks. A
red dye additive for the hydraulic system oil is
available in 20 ml (2/3 oz) bottles. 1 bottle is
sufficient for 15 to 22 L (4 to 6 gallons) of hydraulic
oil. Order Part Number 44-2500 from your Toro
Distributor. This red dye is not recommended for
use with biodegradable fluids. Use food coloring.
1.
Position the machine on a level surface, lower
the cutting units, and stop the engine.
2.
Clean the area around filler neck and cap of the
hydraulic tank
from the filler neck.
1. Hydraulic-tank cap
3.
Remove the dipstick from the filler neck and
wipe it with a clean rag.
4.
Insert the dipstick into the filler neck; then
remove it and check the level of the fluid.
Note:
The fluid level should be within 6.3 mm
(1/4 inch) of the mark on the dipstick.
Important:
Do not overfill.
5.
If the level is low, add appropriate fluid to raise
the level to the F
6.
Install the dipstick and cap onto the filler neck.
29
(Figure
31). Remove the cap
Figure 31
mark.
ULL
g021215
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