12
7. Reinstall the reservoir, engaging the two lower
molded protrusions in the mounting holes of the
support bracket. Engage the top bracket around
the upper protrusion. Hold it in this position and
torque the screws to 7.3 N·m (65 in. lb.).
8. Reinstall the reservoir cap. Do not kink/pinch the
hose.
9. Flush the cooling system (see ‘‘Flushing Cooling
System’’).
Flushing Cooling System
With system properly drained:
1. Fill the cooling system with clean water and a
cooling system cleaner recommended for
aluminum engines. Follow the directions on the
container.
2. Reinstall and tighten the radiator cap.
3. Reinstall the upper blower housing assembly.
Secure with the retaining straps.
4. Start and run the engine for five minutes, or until it
reaches operating temperature. Stop the engine
and allow it to cool.
5. Remove the upper blower housing and drain the
cooling system (Refer to ‘‘Draining Cooling
System’’).
6. Fill the cooling system (see ‘‘Filling Cooling
System’’).
7. Reinstall the upper blower housing and screen
assembly.
Filling Cooling System
1. Check the condition of cooling system hoses,
clamps, and associated components. Replace as
required.
2. Mix equal parts of ethylene glycol anti-freeze and
distilled or deionized water (see ‘‘Coolant
Recommendations’’ on page 5). For extremely
cold temperature applications or protection
outside the limits listed in the ‘‘Coolant
Recommendations’’ Section, refer to the anti-
freeze manufacturers instructions on the
container, but do not exceed 70% anti-freeze.
3. Fill the radiator with the coolant mixture. Allow
coolant to drain into the lower areas. Fill the
overflow reservoir to a level between the ‘‘Max.
Level’’ and ‘‘Min. Level’’ marks. See Figure 10.
Reinstall the radiator and reservoir caps.
4. Reinstall the upper blower housing and screen
assembly. Start and run the engine for five
minutes. Stop the engine and cool.
5. Remove the blower housing and recheck coolant
level in reservoir. Coolant level should be between
the ‘‘Max. Level’’ and ‘‘Min. Level’’ marks. Add
coolant to reservoir if required. See Figure 10.
6. Reinstall the upper blower housing and screen
assembly. Secure with the retaining straps.
Service Precleaner and Air Cleaner Element
This engine is equipped with a replaceable, high
density paper air cleaner element surrounded by an
oiled foam precleaner, located under the upper blower
housing. See Figure 16.
Check the air cleaner and air intake screen daily or
before starting the engine. Check for a buildup of dirt
and debris around the air cleaner system. Keep these
areas clean. Also check for loose or damaged
components. Replace all bent or damaged air cleaner
components. Do not operate the engine without the
upper blower housing and screen assembly installed.
NOTE: Operating the engine with loose, damaged, or
missing air intake components can allow
unfiltered air into the engine, causing
premature wear and failure.
Figure 16. Air Cleaner Assembly.
Precleaner
Element
