Replacing The Fuel Filters; Servicing The Cooling System - Toro 41581 Operator's Manual

Replacing the Fuel Filters

The sprayer has 2 fuel filters, a fuel filter/water separator
(located between the fuel pump and the carburetor) and an
in-line filter (located between the fuel tank and the fuel
pump). Replace the fuel filters after every 400 operating
hours.
1. Set the parking brake, stop the pump, stop the engine,
and remove the ignition key.
2. Clamp off the hose on either side of the in-line fuel
filter to prevent fuel from pouring out of the hoses when
you remove the filter.
3. Place a drain pan under the filter.
4. Loosen and slide the hose clamps away from the filter
(Fig. 39).
2
Figure 39
1. In-line fuel filter
5. Remove the filter from the fuel lines.
6. Install a new filter and move the hose clamps close to
the filter.
Note: Ensure that the flow direction arrow points
toward the engine.

Servicing the Cooling System

Clean the radiator fins of all debris using low-pressure
compressed air or a soft brush every 200 operating hours.
Clean them more often if needed. Also check all coolant
hoses and replace any that are worn, leaking, or damaged.
Important Do not spray water into a hot engine
compartment.
Important
Do not add coolant to an overheated engine
until the engine has fully cooled. Adding coolant to an
overheated engine may crack the engine block.
1
2. Fuel filter/water separator
34
Check the engine coolant as directed by the manufacturer
every 400 operating hours and change it as needed. Use
5.8 qt. (5.4 l) of a solution of 50% water and 50%
permanent ethylene glycol antifreeze.
1. Position the sprayer on a level surface, set the parking
brake, stop the pump, stop the engine, and remove the
ignition key.
Caution
If the engine has been running, the coolant may be
hot and pressurized. If you open the radiator cap
when the coolant is hot, it could spray out and
severely burn you or bystanders.
Allow the engine to cool for at least 15 minutes
before opening the radiator cap. The radiator cap
must be cool to the touch.
2. When the engine is cool, remove the radiator cap
(Fig. 40).
1
Figure 40
1. Radiator cap
3. Place a large drain pan under the radiator.
4. Open the drain (Fig. 41) and drain the coolant into the
pan.
1
Figure 41
1. Radiator drain