Checking The Hydraulic Fluid - Toro 02750 Operator's Manual

Figure 46
1. Suction strainer
2. Oil tank suction flange

Checking the Hydraulic Fluid

The machines reservoir is filled at the factory with
approximately 77 L (20.3 US gallons) of high quality hydraulic
fluid. Check the level of the hydraulic fluid before first
starting the engine 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.
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
The proper hydraulic fluids must be specified for
mobile machinery (as opposed to industrial plant usage),
multiweight-type, with ZnDTP or ZDDP antiwear additive
package (not an ashless-type fluid).
3. Filler strainer
4. Drain plug
cSt @ 40°C 44 to 48
cSt @ 100°C 7.9 to 8.5
140 to 160
-34°F to -49°F
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 fl oz)
bottles. One bottle is sufficient for 15 to 22 liters (4 to 6
US gallons) of hydraulic oil. Order part 44–2500 from
your Authorized Toro Distributor.
Synthetic, Biodegradable Hydraulic Fluid (Available in
19 liter (5 US gallon) containers or 208 liter (55 US gallon)
drums—see the parts catalog or Toro distributor for part
numbers.)
This high-quality, synthetic, biodegradable fluid has been
tested and found compatible for this model. Other brands
of synthetic fluid may have seal-compatability problems
and Toro cannot assume responsibility for unauthorized
substitutions.
Note: This synthetic fluid is not compatible with the
Toro Biodegradable Fluid previously sold. See your Toro
distributor for more information.
Alternative fluids:
•
Mobil EAL Envirosyn H 46 (US)
•
Mobil EAL Hydraulic Oil 46 (International)
1. Position machine on a level surface, lower the cutting
units and stop the engine.
2. Check the sight level gauge on the side of the tank. The
level needs to be at the upper mark.
3. If hydraulic oil is needed, clean area around the cap of
hydraulic tank (Figure
1
2
3
1. Hydraulic-tank cap
2. Oil tank
4. Remove the cap and fill the tank to the upper mark on
the sight level gauge. Do not overfill.
5. Install the cap onto the tank.
44
47). Remove cap from the tank.
G014570
Figure 47
3. Sight-level gauge