Checking The Hydraulic Fluid Level - Toro 04383 Operator's Manual

If the engine has been running, the pressurized,
hot coolant can escape and cause burns.
• Do not open the radiator cap when the
engine is running.
• Use a rag when opening the radiator cap,
and open the cap slowly to allow steam to
escape.
1. Park the machine on a level surface.
2. Check the coolant level (Figure 32). It should be
between the lines on the reserve tank when the
engine is cold.
Figure 32
1. Reserve tank
3. If the coolant is low, remove the reserve tank cap
and add a 50/50 mixture of water and permanent
ethylene glycol antifreeze. Do not overfill.
4. Install the reserve tank cap.
Checking the Hydraulic Fluid
Level
Recommended Hydraulic Fluid
The machines reservoir is filled at the factory with
approximately 5.5 gallons (20.8 l) 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 5
gallon pails or 55 gallon drums. See parts catalog or 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 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
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, 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.
29
cSt @ 40°C 44 to 48
cSt @ 100°C 7.9 to 8.5
140 to 160
-34°F to -49°F