SERVICE
Service - 49
Cleaning The Radiator And Screen
1. Park the power unit on a level surface.
2. Engage the parking brake and shut off the engine.
3. Remove the key from the ignition switch and
allow the engine to cool.
4. Open the engine hood to access the engine
compartment.
A
5. Remove the radiator
screen (A).
6. Remove debris from
the radiator screen
using a brush, com-
pressed air, or water.
7. When required, clean
debris from the radiator
using low pressure com-
pressed air or water.
8. Check radiator ns for
damage.
9. Install the radiator screen.
10. Close the engine hood.
Draining The Cooling System
1.
CAUTION
Coolant is poisonous to humans and animals and
is hazardous to the environment. Drain coolant into
an approved container. Dispose of used coolant in
accordance with local laws.
Park the power unit on a level surface.
2. Engage the parking brake and shut off the engine.
3. Remove the key from the ignition switch and
allow the engine to cool.
4. Open the engine hood to access the engine
compartment.
5. Slowly open the radiator cap to the rst stop to
allow pressure to release.
6.
A
B
Place a drain pan or jug under the right side of
the front frame.
7. Install a 7/16” (11
mm) ID hose (A)
onto the radiator
drain port (B) and
route down to the
drain pan.
8. Turn the drain valve
counterclockwise
to open and drain
the coolant into the
drain pan.
Flushing The Cooling System
1. Drain the cooling system following the proce-
dures in the previous section.
2. Close the radiator drain valve, leaving the drain
hose in place.
3. Add one can of radiator ush to the radiator and
ll the radiator with clean water.
4. Install the radiator cap, start the engine, and run
until the engine reaches operating temperature
(160 - 180° F) (71 - 82° C).
5. Shut off the engine and remove the key from the
ignition switch.
6.
WARNING
Hot coolant can cause severe burns. Allow the
temperature of the radiator to drop from hot to
warm before draining the coolant.
Carefully drain the cooling system while the
coolant is still warm.
7. Allow the engine and radiator to cool completely.
8.
CAUTION
Allow engine and radiator to cool completely.
Engine damage could occur if cold water is added
to a hot engine.
Add clean water to the radiator and allow the
water to run through the system. Add more
water as needed, until the water owing from the
drain valve is clear and free of sediment.
9. After the water has drained completely, close the
radiator drain valve and remove the drain hose.
10. Slowly add the proper coolant (refer to Engine
Owner’s Manual for the correct type of coolant)
to the radiator until the level reaches the bottom
of the ller neck. NOTE: residual water may be
present in the engine. Adjust the coolant mixture
to achieve a 50/50 ratio.
11. Install the radiator cap, start the engine, and run
until the engine reaches operating temperature
(160 - 180° F) (71 - 82° C).
12. Shut off the engine and allow the engine to cool.
13. Recheck the coolant level when the engine is
cold. Add additional coolant if necessary.
14. Close the engine hood.
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