Changing The Hydraulic Fluid And Filters - Toro 72946 Operator's Manual

Changing the Hydraulic
Fluid and Filters
Service Interval: After the first 250 hours—Change
the hydraulic filters and hydraulic
fluid.
Every 250 hours—After the initial
change—change the hydraulic-system
filters and fluid when using Mobil 1 15W50
fluid. (Change it more often under dirty or dusty
conditions)
Every 500 hours—After the initial
change—change the hydraulic-system
filters and fluid when using Toro
500 fluid. (Change it more often under 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 64)
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 96).
Figure 96
1. Jack stands
4. Remove both the mower belt and the pump-drive
belt; refer to Replacing the Mower Belt (page
59) and Replacing the Hydraulic Pump-Drive
Belt (page 61).
Note:
This prevents fluid from getting on the
belts.
5.
® HYPR-OIL ™
for fluid
1. Filter locations
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
g008970
65
Place a drain pan under the filter, remove the
old filter, and wipe the surface clean
Figure 97
Bottom view of the machine
Apply a thin coat of hydraulic fluid to the rubber
gasket on the replacement filter
Install the replacement hydraulic filter.
Install the pump-drive belt and the mower belt.
Remove the jack stands and lower the machine
(Figure 96).
Add fluid to the hydraulic reservoir and check
for any leaks.
Clean up any spilled fluid.
Start the engine and let it run for about 2 minutes
to purge air from the system.
Shut off the engine and check for leaks.
Check the fluid level while the fluid is cold.
If required, add fluid to the hydraulic reservoir.
Note:
Do not overfill.
(Figure 97).
g008968
2. Hydraulic filter
(Figure 97).