Checking The Hydraulic Fluid - Toro Groundsmaster 3400 Operator's Manual

DANGER
In certain conditions during fueling, static
electricity can be released causing a spark which
can ignite the fuel vapors. A fire or explosion from
fuel can burn you and others and can damage
property.
• Always place fuel containers on the ground away
from your vehicle before filling.
• Do not fill fuel containers inside a vehicle or on
a truck or trailer bed because interior carpets
or plastic truck bed liners may insulate the
container and slow the loss of any static charge.
• When practical, remove equipment from the
truck or trailer and refuel the equipment with its
wheels on the ground.
• If this is not possible, then refuel such equipment
on a truck or trailer from a portable container,
rather than from a fuel dispenser nozzle.
• If a fuel dispenser nozzle must be used, keep the
nozzle in contact with the rim of the fuel tank
or container opening at all times until fueling is
complete.
1. Park the machine on a level surface.
2. Using a clean rag, clean the area around the fuel tank
cap.
3. Remove the cap from the fuel tank.
4. Fill the tank until the level is to the bottom of the filler
neck with diesel fuel.
5. Install the fuel tank cap tightly after filling the tank.
Note: If possible, fill the fuel tank after each use. This
will minimize possible buildup of condensation inside
the fuel tank.

Checking the Hydraulic Fluid

The machines reservoir is filled at the factory with
approximately 32 L (7.0 UK gallons) 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
19 L (5 gallon) pails or 208 L (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
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 20 ml (2/3 oz) bottles. One bottle
is sufficient for 15 to 22 L (4 to 6 gallons) of hydraulic
fluid. Order Part No. 44-2500 from your authorized Toro
distributor.
Biodegradable Hydraulic Fluid - Toro Premium Synthetic
Bio Hyd Fluid
Toro Biodegradable Hydraulic Fluid (Available in 5
gallon pails or 55 gallon drums. See parts catalog or Toro
distributor for part numbers).
Note: Toro Premium Synthetic Bio Hyd 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.
Contact your local Toro Distributor for details.
1. Position the 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 fluid is needed, clean area around the cap
of hydraulic tank
4. Remove the cap from the tank.
23
cSt @ 40°C 44 to 48
cSt @ 100°C 7.9 to 8.5
140 to 160
-34°F to -49°F
(Figure 24).