Toro 04383 Operator's Manual page 28

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, 65° F (18° C) to 120° F
(49° C), 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 5 gallon (19 l) containers or 55 gallon
drums from your Mobil Distributor.
Note: Many hydraulic fluids are almost colorless, making it
difficult to spot leaks. A red dye additive for the hydraulic
system oil is available in 2/3 oz. (20 ml) bottles. One bottle is
sufficient for 4-6 gal (15-22 1) of hydraulic oil. Order part no.
44-2500 from your authorized Toro distributor. This red dye
is not recommended for use with biodegradable fluids.
Important: Regardless of hydraulic fluid type used, any
machine used for mowing fairways, verticutting or used
during ambient temperatures 65°F (18°C) to 120°F (49°C)
should have Oil Cooler Kit, Part No. 104–7701, installed.
Biodegradable Hydraulic Fluid – Mobil 224H
Toro Biodegradable Hydraulic Fluid (Available in 5
gallon pails or 55 gallon drums. See parts catalog or Toro
distributor for part numbers.)
Alternate fluid: Mobil EAL 224H
This is vegetable–oil based biodegradable oil tested and
approved by Toro for this model. This fluid is not as
resistant to to high temperatures as standard fluid, so
install an oil cooler if required by the operator manual and
follow recommended fluid change intervals with this fluid.
Contamination by mineral–based hydraulic fluids will change
the biodegradability and toxicity of this oil. When changing
from standard fluid to the biodegradable type, be certain to
follow the approved flushing procedure. Contact your local
Toro Distributor for details.
Note: Use of this fluid requires installation of an Oil Cooler
Kit, Part No. 104–7701, to the machine. This biodegradable
fluid will break down quickly if the temperature exceeds
180°F (82°C).
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 5 gallon (19 l) containers or 55 gallon
drums from your Mobil Distributor.
Note: Many hydraulic fluids are almost colorless, making it
difficult to spot leaks. A red dye additive for the hydraulic
system oil is available in 2/3 oz. (20 ml) bottles. One bottle is
sufficient for 4–6 gal. (15–22 l) of hydraulic oil. Order Part
No. 44-2500 from your Authorized Toro Distributor. This
red dye is not recommended for use with biodegradable
fluids. Use food coloring.
Filling the Hydraulic Tank
1. Position the machine on a level surface. Make sure the
machine has cooled down so the oil is cold.
2. Remove the cap from the reservoir and check the level
of fluid. The fluid should be up to the bottom of the
screen in the filler neck (Figure 33).
1. Hydraulic reservoir
3. If the fluid level is low, slowly fill the reservoir with the
appropriate hydraulic fluid until the level reaches the
bottom of the screen. Do not overfill.
Important: To prevent system contamination,
clean the top of the hydraulic fluid containers
before puncturing. Ensure the pour spout and
funnel are clean.
4. Install the reservoir cap. Wipe up any fluid that may
have spilled.
Important: Check level of hydraulic fluid before
engine is first started and daily thereafter.
28
Figure 33
2. Screen