Hydraulic System Maintenance; Changing The Hydraulic Filter; Changing The Hydraulic Fluid - Toro 30839 Operator's Manual

Hydraulic System
Maintenance

Changing the Hydraulic Filter

Service Interval: After the first 10 hours
Every 200 hours/Yearly (whichever
comes first)
Use a genuine Toro replacement filter, Part No. 86-3010.
Important: Use of any other filter 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. Pinch off the hose to the filter mounting plate.
3. Clean around the filter mounting area. Place a drain
pan under the filter (Figure 58) and remove the filter.
Figure 58
1. Hydraulic filter
4. Lubricate the new filter gasket and fill the filter with
hydraulic fluid.
5. 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.
6. Release the hose to the filter mounting plate.
7. Start the engine and let it run for about two minutes
to purge air from the system. Stop the engine and
check for leaks.

Changing the Hydraulic Fluid

Service Interval: Every 400 hours
If the 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. Turn the engine off and raise the hood.
2. Disconnect the hydraulic line (Figure 59) or remove
the hydraulic filter (Figure 58) and let the hydraulic
fluid flow into a drain pan. Install the hydraulic line
when hydraulic fluid stops draining.
1. Hydraulic line
3. Fill the reservoir (Figure 60) with approximately
3.5 U.S. gallons (13.2 l) of hydraulic fluid; refer to
Checking the Hydraulic System.
Important: Use only the hydraulic fluids
specified. Other fluids could cause system
damage.
1. Hydraulic fill cap
4. Install the reservoir cap. Start the engine and use all
of the hydraulic controls to distribute the hydraulic
fluid throughout the system. Also check for leaks;
then stop the engine.
5. Check the fluid level and add enough to raise the
level to Full mark on the dipstick. Do not overfill.
45
Figure 59
Figure 60