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Hydraulic System
Maintenance
Servicing the Hydraulic
System
Hydraulic-fluid specification: Toro Premium All-season
Hydraulic Fluid
If Toro Premium All-season Hydraulic Fluid is not available,
you may use Mobil DTE 15M Special (Mobil DTE 15M fluid
with special antiwear additive package).
Note: Toro Premium All-season Hydraulic Fluid is available
in 5-gallon pails or 55-gallon drums. See the parts catalog or
an Authorized Toro Service Dealer for part numbers.
The machine comes from the factory with a full hydraulic
fluid reservoir that contains approximately 182 L (48 US
gal) of high-quality hydraulic fluid. Check the level of the
hydraulic fluid before you start the engine for the first
time, and daily thereafter.
Note: Toro does not assume responsibility for damage
caused by improper substitutions, so use only products from
reputable manufacturers.
Note: Many brands of 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 (0.68 oz) bottles.
One bottle is sufficient for 15.1 to 22.7 L (4.0 to 6.0 US gal)
of hydraulic oil. Order part no. 44-2500 from an Authorized
Toro Service Dealer.
Note: If ambient operating temperatures exceed 110°F,
contact Toro for fluid recommendations.
Changing the Hydraulic Fluid and
Replacing the Breather
Service Interval: Every 1,000 hours
The capacity of the hydraulic-fluid reservoir: 150 L (40
US gallons)
The capacity of the hydraulic-fluid system: 182 L (48
US gallons)
Draining the Hydraulic Reservoir
Note: Drain the hydraulic fluid reservoir when the fluid is
warm, if possible.
1. Remove the right side panel; refer to
Side Panels (page
2. Rotate the battery disconnect to the Off position
(Figure
106).
1. Fill cap (hydraulic tank)
2. Filler neck (hydraulic tank)
3. Breather
3. Remove the fill cap from the filler neck of the tank
(Figure
106).
4. At the forward side of the engine compartment panel,
remove the breather from the pipe coupling by rotating
the breather counterclockwise
Note: Discard the old breather.
5. Install a new breather into the pipe coupling hand tight
(Figure
106).
6. Place a container that can hold a minimum of 190 L
(50 US gal) under the hydraulic reservoir drain plug
(Figure
107).
68
Removing the
44).
Figure 106
4. Pipe coupling
5. Battery disconnect switch
(Off position)
(Figure
106).
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