Toro Greensmaster 3120, Operator'S Manual, Page: 39 / 48

High Viscosity Index/Low Pour Point
Anti-wear Hydraulic Fluid, ISO VG 46 (cont'd.)
Material Properties:
Viscosity, ASTM D445 cSt @ 40°C (104°F)
44 to 48
Viscosity Index ASTM D2270 140 or higher
Pour Point, ASTM D97 -37°C to -45°C (-34°F
to -49°F)
Industry Specifications: Eaton Vickers 694 (I-286-S,
M-2950-S/35VQ25 or
M-2952-S)
Note:
Many hydraulic fluids are almost colorless,
making it difficult to spot leaks. A red dye additive for
the hydraulic fluid is available in 20 ml (0.67 fl oz)
bottles. A bottle is sufficient for 15 to 22 L (4 to 6 US
gallons) of hydraulic fluid. Order Part No. 44-2500
from your authorized Toro distributor.
Important:
Toro Premium Synthetic
Biodegradable Hydraulic Fluid 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 gallons) pails or 208 L (55 US gallons) from
your authorized Toro distributor.
Checking the Hydraulic-Fluid
Level
Important:
To prevent system contamination,
clean the top of the hydraulic fluid containers
before opening them. Ensure that the pour spout
and funnel are clean.
1. Move the machine on a level surface.
2. Allow the machine to cooled down so that the
hydraulic fluid is cold.
3. Unscrew the dipstick located at the top of the
hydraulic tank, wipe the dipstick clean, install it,
and remove it again (
Figure 51 ).
Note:
If the oil level is at or below the groove
on the lower end of the dipstick, the oil level is
sufficient.
g229800
Figure 51
1. Dipstick 4. Filler neck
2. Hydraulic fluid level
(good—at or below the
groove) 5. Dipstick hole
3. Breather
4. If no oil is present on the dipstick, remove the
cap from the filler neck of the hydraulic fluid
tank (
Figure 51 ) and slowly add the specified
hydraulic fluid to the hydraulic tank until the fluid
level is at the groove dipstick; refer to
Changing
the Hydraulic Fluid and Filters (page 39) .
Note:
Do not mix different types of hydraulic
fluid.
5. Install the dipstick and the breather into the
hydraulic tank (
Figure 51 ).
Note:
Make a close visual inspection of the
hydraulic components. Inspect them for leaks,
loose fasteners, missing parts, improperly
routed lines, etc. Make any repairs necessary.
Changing the Hydraulic Fluid and
Filters
Service Interval: Every 800 hours—If you are not
using the recommended hydraulic
fluid or have ever filled the reservoir
with an alternative fluid, change
the hydraulic fluid, filter, and tank
breather.
Every 1,000 hours—If you are using the
recommended hydraulic fluid, change the
hydraulic-fluid filter.
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