Toro Greensmaster 3420 TriFlex Operator's Manual page 27

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, Vickers 35 VQ 25 (Eaton
ATS373-C)
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 above 85°F (29°C) should
have Oil Cooler Kit, Part No. 117-9314, installed.
cSt @ 40°C 44 to 48
cSt @ 100°C 7.9 to 8.5
140 to 160
-34°F to -49°F
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 (Figure 32).
g014719
1. Hydraulic tank cap
3. Slowly fill the reservoir with the appropriate hydraulic
fluid until the level is at or within 0.25 inch (6 mm) of
the arrow in the symbol next to the white window in
the front of the reservoir (Figure 33). Do not overfill.
1
1. White window on the front
of the hydraulic reservoir
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.
27
1
Figure 32
2
g016334
Figure 33
2. Fill to within this area.