INSPECTION OF COOLING SYSTEM HOSES
Check the cooling system hoses for any cracks or deterioration every 200 hours of operation. Check all hose connections for looseness. Replace any damaged hoses and tighten any loose connections.
CHANGING THE ENGINE COOLANT
The engine coolant should be drained and replaced with new coolant solution after every 400 hours of operation.
The dry capacity of the cooling system is approximately 3.5 Qts. Follow the instructions provided previously in this manual under CHECKING ENGINE COOLANT LEVEL when mixing the coolant solution.
Change the engine coolant as follows:
•Drain the coolant when the engine is cold.
•Place the tractor on a level surface and raise the tractor hood.
•Locate the radiator drain plug in the lower left rear corner of the radiator. See Figure 57.
•In stages, SLOWLY pour the coolant solution into the filler neck, allowing as much air as possible to escape through the neck. Fill to the overflow flange of the filler neck.
•Wait a few minutes to allow air to escape through the filler neck and refill as needed, then reinstall the radiator cap.
•Fill the overflow reservoir to the "H" (full) mark.
•Start the engine and allow it to run for a short period. Stop the engine.
•Recheck the coolant level in the overflow reservoir and refill as needed. Reinstall the reservoir cap.
CHANGING THE AIR CLEANER
Check the air cleaner daily or before starting the engine. Check for loose or damaged components and check the condition of the filter element. Remove any buildup of dirt and debris in the air cleaner housing.
See Figure 58 for assembly of the air cleaner elements.
WARNING: Operating the engine with loose or damaged air cleaner compo- nents will allow unfiltered air into the carburetor, causing extensive wear and eventual failure of the engine.
OVERFLOW
RESERVOIR
COOLANT
DRAIN PLUG
Figure 57
KNOB
FOAM PRECLEANER ELEMENT
WASHER
AIR CLEANER COVER
WING NUT
•Place a suitable container beneath the drain plug and remove the cap from the overflow reservoir.
•Turn the drain plug counterclockwise to re- move. Allow as much of the old coolant as pos- sible to drain from the system.
Coolant is a toxic substance. Dispose of in 
an environmentally safe manner. Contact 
your area EPA office for proper disposal
methods and recycling center locations.
•Reinstall the drain plug and turn clockwise until fully tightened.
•Turn the remote radiator cap counterclockwise to the first stop, then push downward on the cap and turn counterclockwise to remove. Refer to Figure 56.
PAPER
ELEMENT
AIR
CLEANER
BODY
BASE SEAL
AIR
CLEANER
BASE
Figure 58
43
