Toro 08703 Operator's Manual page 20

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 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 Antiwear
Hydraulic Fluid, ISO VG 46
Material Properties:
Viscosity, ASTM D445
Viscosity Index ASTM
D2270
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 liters (5 gallon) containers or 55
gallon drums from your Mobil Distributor.
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. One bottle is sufficient for 15-22 liters (4-6
gallons) of hydraulic oil. Order part no. 44-2500 from
your authorized Toro distributor.
1. Clean the area around the hydraulic oil reservoir cap to
prevent debris from entering tank (Figure 15).
cSt @ 40°C 44 to 48
cSt @ 100°C 9.1 to 9.8
140 to 160
-34°F to -49°F
1. Oil reservoir cap
2. Remove the cap from the reservoir.
3. Remove dipstick from filler neck and wipe it with a
clean rag. Insert dipstick into filler neck; then remove
it and check level of fluid. Fluid level should be up to
mark (necked down area) on dipstick (Figure 16).
1. Dipstick
4. If the fluid level is low, slowly fill the reservoir with the
appropriate hydraulic fluid until the level reaches the
necked down area on the dipstick. Do not overfill.
5. Install the reservoir cap.
Important: To prevent system contamination,
clean the top of the hydraulic oil containers before
puncturing. Ensure that the pour spout and funnel
are clean.
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Figure 15
Figure 16
2. Full mark