g019521
Figure 73
1.
Hydraulic reservoir
4.
Install and tighten the plug when the hydraulic
fluid stops draining.
5.
Fill the reservoir with hydraulic fluid; refer to
Hydraulic Fluid Specifications (page 47)
and
Hydraulic Fluid Capacity (page 47)
.
Important:
Use only the hydraulic fluids
specified. Other fluids could cause system
damage.
6.
Install the reservoir cap. Start the engine and
use all the hydraulic controls to distribute the
hydraulic fluid throughout the system.
7.
Check for leaks.
8.
Shut off the engine.
9.
Check the level of the fluid and add enough to
raise the level to the full mark on the dipstick.
Important:
Do not overfill the reservoir.
Replacing the Hydraulic
Filter
Service Interval:
Every 1,000 hours—
If you
are using the recommended
hydraulic fluid,
replace the
hydraulic filter.
Every 800 hours—
If you are not using the
recommended hydraulic fluid or have ever
filled the reservoir with an alternative fluid,
replace the hydraulic filter.
The hydraulic system filter head is equipped with a
service interval indicator. With the engine running,
view the indicator—it should be in the green zone.
When the indicator is in the red zone, change the filter
element.
Use the Toro replacement filter (Part No. 94-2621).
Important:
Use of any other filter may void the
warranty on some components.
1.
Park the machine on a level surface, lower the
cutting units, shut off the engine, engage the
parking brake, and remove the key.
2.
Clean the area around the filter mounting area.
Place a drain pan under the filter and remove
the filter (
).
g019482
Figure 74
1.
Hydraulic filter
2.
Service interval indicator
3.
Lubricate the new filter gasket and fill the filter
with hydraulic fluid.
4.
Ensure that the filter mounting area is clean.
Screw the filter on until the gasket contacts the
mounting plate. Then, tighten the filter 1/2 turn.
5.
Start the engine and let it run for about 2 minutes
to purge air from the system.
6.
Shut off the engine and remove the key, and
check for leaks.
Checking the Hydraulic
Lines and Hoses
Service Interval:
Before each use or daily
Check the hydraulic lines and hoses for leaks, kinked
lines, loose mounting supports, wear, loose fittings,
weather deterioration, and chemical deterioration.
Make all necessary repairs before operating.
Using the Hydraulic System
Test Ports
The test ports are used to test pressure in the
hydraulic circuits. Contact your authorized Toro
distributor for assistance.
1.
Test Port A (
) is used to assist in
troubleshooting the hydraulic circuit for the lift
cylinders.
48
