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Hydraulic System
Maintenance
Changing the Hydraulic
Fluid
Service Interval: Every 800 hours
If fluid becomes contaminated, contact your local
Toro distributor because the system must be flushed.
Contaminated fluid looks milky or black when
compared to clean oil.
1.
Stop the engine and raise the hood.
2.
Place a large drain pan under the fitting secured
to the bottom of the hydraulic fluid reservoir
(Figure
88).
Figure 88
1.
Hose
3.
Disconnect the hose from the bottom of the
fitting and let the hydraulic fluid flow into the
drain pan.
4.
Install the hose when hydraulic fluid stops
draining.
5.
Fill the reservoir with approximately 30 L (8 US
gallons) of hydraulic fluid; refer to
Hydraulic Fluid (page
Important:
Use only hydraulic fluids
specified. Other fluids could cause system
damage.
6.
Install the reservoir cap.
7.
Start the engine and use all of the hydraulic
controls to distribute hydraulic fluid throughout
the system. Also check for leaks.
8.
Stop the engine.
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Checking the
29).
9.
Check the level of the hydraulic fluid and add
enough to raise level to the Full mark on the
dipstick.
Important:
Do not overfill.
Replacing the Hydraulic
Filters
The hydraulic system is equipped with a
service-interval indicator
running at operating temperature, view the indicator, it
should be in the Green zone. When the indicator is in
the Red zone, change the hydraulic filters.
1. Hydraulic-filter-restriction indicator
Important:
Use of any other filters may void the
warranty on some components.
1.
Position the machine on a level surface, lower
the cutting units, stop the engine, engage the
parking brake, and remove the key from the
ignition switch.
2.
Clean the area around the filter-mounting area
and place a drain pan under filter
and
(Figure
91).
1. Hydraulic filter
58
(Figure
89). With the engine
Figure 89
(Figure
Figure 90
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90)
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