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Replacing the Hydraulic Fluid and
Filters
Service Interval: After the first 250 hours—Change
the hydraulic filters and hydraulic
fluid when using any type of fluid.
Every 250 hours—Change the hydraulic filters
and hydraulic fluid when using Mobil
(more often in dirty or dusty conditions).
Every 500 hours—Change the hydraulic
filters and hydraulic fluid when using Toro
HYPR-OIL
™
500 hydraulic fluid (more often in
dirty or dusty conditions).
To replace the hydraulic fluid, the filters need to be
removed. Replace both at the same time; refer to
Hydraulic-Fluid Specifications (page 56)
specifications.
1.
Park the machine on a level surface, disengage
the blade-control switch, and engage the parking
brake.
2.
Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
3.
Raise the machine and support it with jack
stands
(Figure
86).
Figure 86
1. Jack stands
4.
Remove both the mower belt and the pump-drive
belt; refer to
Replacing the Mower Belt (page
51)
and
Replacing the Hydraulic Pump-Drive
Belt (page
53).
Note:
This prevents fluid from getting on the
belts.
5.
Place a drain pan under the filter, remove the
old filter, and wipe the surface clean
®
1 fluid
®
for the fluid
1. Filter locations
6.
Apply a thin coat of hydraulic fluid to the rubber
gasket on the replacement filter
7.
Install the replacement hydraulic filter.
8.
Install the pump-drive belt and the mower belt.
9.
Remove the jack stands and lower the machine
(Figure
10.
Add fluid to the hydraulic reservoir and check
for any leaks.
11.
Clean up any spilled fluid.
12.
Start the engine and let it run for about 2 minutes
to purge air from the system.
13.
Shut off the engine and check for leaks.
14.
Check the fluid level while the fluid is cold.
15.
If required, add fluid to the hydraulic reservoir.
g008970
Note:
(Figure
87).
57
Figure 87
Bottom view of the machine
2. Hydraulic filter
86).
Do not overfill.
g008968
(Figure
87).
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