Toro 07379 Operator's Manual page 48

2. Lubricate the new filter sealing gasket and hand turn
the filter onto the filter head until the gasket contacts
the filter head. Then tighten it 3/4 turn further. The
filter should now be sealed.
3. Fill the hydraulic reservoir with approximately 15 l (4
US gallons) of hydraulic oil.
4. Start the machine and run it at idle for about two
minutes to circulate the fluid and remove any air
trapped in the system. Stop the machine and recheck
the fluid level.
5. Verify the oil level.
6. Dispose of the oil properly.
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