Draining The Fuel Tank; Servicing The Hydraulic System - Toro TX 420 Operator's Manual

Draining the Fuel Tank

Danger
In certain conditions, gasoline is extremely
flammable and highly explosive. A fire or
explosion from gasoline can burn you and others
and can damage property.
• Drain gasoline from the fuel tank when the
engine is cold. Do this outdoors in an open area.
Wipe up any gasoline that spills.
• Never smoke when draining gasoline, and stay
away from an open flame or where a spark may
ignite the gasoline fumes.
1. Lower the loader arms, stop the engine, and remove
the key.
2. Syphon the gasoline from the tank using a pump type
syphon.
Note: Now is the best time to install a new fuel filter
because the fuel tanks are empty.
Servicing the Hydraulic
System
Replacing the Hydraulic Filter
Change the hydraulic filter:
• After the first 8 operating hours.
• After every 200 operating hours.
1. Position traction unit on a level surface.
2. Lower the loader arms, stop the engine, and remove
the key.
3. Open the hood, refer to Opening the Hood, page 24.
4. Remove the front screen, refer to Removing the Front
Screen, page 25.
Important Do not substitute an automotive oil filter or
severe hydraulic system damage may result.
5. Place a drain pan under the filter (Fig. 46).
6. Remove the old filter (Fig. 46) and wipe the surface of
the filter adapter gasket clean.
7. Apply a thin coat hydraulic fluid to the rubber gasket
on the replacement filter.
8. Install the replacement hydraulic filter onto the filter
adapter (Fig. 46). Tighten it clockwise until the rubber
gasket contacts the filter adapter, then tighten the filter
an additional 3/4 turn.
1
Figure 46
1. Hydraulic filter
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.
Warning
Hydraulic fluid escaping under pressure can
penetrate skin and cause injury. Fluid injected
into the skin must be surgically removed within a
few hours by a doctor familiar with this form of
injury or gangrene may result.
• Keep your body and hands away from pin hole
leaks or nozzles that eject high pressure
hydraulic fluid.
• Use cardboard or paper to find hydraulic leaks,
never use your hands.
12. Check the fluid level in the hydraulic tank (refer to
Checking the Hydraulic Fluid, page 16) and add fluid
to raise the level to mark on dipstick. Do not over fill
the tank.
13. Install the front screen, refer to Removing the Front
Screen, page 25.
14. Close the hood.
Changing the Hydraulic Fluid
Change the hydraulic fluid after every 400 operating hours
or yearly.
1. Position the traction unit on a level surface.
2. Open the hood, refer to Opening the Hood, page 24.
3. Install the cylinder lock, stop the engine, and remove
the key.
4. Allow the traction unit to cool completely.
5. Remove the hydraulic tank cap and dipstick (Fig. 47).
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