Servicing The Hydraulic System - Toro 22303 Operator's Manual

4. Replace the battery cover.
Servicing the Hydraulic
System
Replacing the Hydraulic Filter
Change the hydraulic filter:
After the first 8 operating hours.
After every 400 operating hours.
1. Position traction unit on a level surface.
2. Raise the loader arms and install the cylinder locks;
refer to Using the Cylinder Locks, page 19.
3. Stop the engine and remove the key.
4. Remove the front access cover, refer to Removing the
Front Access Cover, page 23.
Important
Do not substitute an automotive oil filter or
severe hydraulic system damage may result.
5. Place a drain pan under the filter.
6. Remove the old filter and wipe the filter adapter,
gasket surface clean.
7. Apply a thin coat hydraulic fluid to the rubber gasket
on the replacement filter (Fig. 28).
8. Install the replacement hydraulic filter onto the filter
adapter. Tighten it clockwise until the rubber gasket
contacts the filter adapter, then tighten the filter an
additional 1/2 turn (Fig. 28).
9. Clean up any spilled fluid.
10. Start the engine and let it run for about two minutes to
purge air from the system.
11. Stop the engine and check for leaks.
12. Check the fluid level in the hydraulic tank (refer to
Checking the Hydraulic Fluid, page 14) and add fluid
to raise the level to the mark on the dipstick. Do not
over fill the tank.
2
Figure 28
1. Hydraulic filter
2. Gasket
13. Install the front access cover.
14. Remove and store the cylinder locks (refer to Using
the Cylinder Locks, page 19) and lower the loader
arms.
Changing the Hydraulic Fluid
Change the hydraulic fluid yearly.
1. Position traction unit on a level surface.
2. Raise the loader arms and install the cylinder locks;
refer to Using the Cylinder Locks, page 19.
3. Stop the engine and remove the key.
4. Remove the front access cover, refer to Removing the
front access cover, page 23.
Important
Do not substitute automotive transmission
fluid or severe hydraulic system damage may result.
5. Place a large drain pan under the traction unit that can
hold at least 17 gal. (67 l).
6. Remove the drain plug from the bottom of the
hydraulic tank and allow the fluid to completely drain
out.
7. Install the drain plug.
8. Fill the hydraulic tank with 10W-30 or 15W-40
detergent, diesel engine oil (API service CH-4 or
higher); refer to Checking the Hydraulic Fluid, page
14.
Note: Dispose of used oil at a certified recycling center.
9. Install the front access cover
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1
3
3. Adapter