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To service the air cleaner, follow these steps:
1. Loosen screw (A) and tilt cover (B) down.
2. Remove air cleaner assembly from cover.
3. Carefully separate foam air cleaner (C) from air cleaner
plate (D).
4. Wash foam air cleaner in liquid detergent and water. To
dry, squeeze foam air cleaner in a clean cloth.
5. Saturate foam air cleaner with clean engine oil. To remove
excess oil, squeeze foam air cleaner in a clean cloth.
6. Reinstall cleaned and oiled foam air cleaner in air
cleaner plate.
7. Firmly fit air cleaner assembly into cover.
8. Insert cover’s tabs (E) into slots (F) in bottom of base (G).
9. Tilt cover up and tighten screw securely to base.
Service Spark Plug
Change the spark plug every 100 hours of operation or once
each year, whichever comes first. This will help your engine
to start easier and run better.
1. Clean area around spark plug.
2. Remove and inspect spark plug.
3. Check electrode gap with wire feeler gauge and set
spark plug gap to 0.030 inch (0.76mm) if necessary.
4. Replace spark plug if electrodes are pitted, burned or
porcelain is cracked. Use the recommended
replacement plug. See Specifications.
5. Install spark plug and tighten firmly.
Clean Spark Arrester Screen
If you use your trash pump on any forest-covered, brush-
covered, or grass-covered unimproved land, it must have a
spark arrester. The spark arrester must be maintained in
good condition by the owner/operator. A spark arrester is
available from your nearest qualified service center.The spark
arrester must be serviced every 50 hours to keep it
functioning as designed.
If the engine has been running, the muffler will be very hot.
Allow the muffler to cool before servicing the spark arrester.
1. Remove spark arrester screen for cleaning and inspection.
2. Inspect screen and replace if torn, perforated or
otherwise damaged. DO NOT use a defective screen. If
screen is not damaged, clean it with commercial solvent.
3. Reattach spark arrester screen to muffler.
Air Cooling System
Over time debris may accumulate in cylinder cooling fins and
cannot be removed without partial engine disassembly. For
this reason, we recommend you have an authorized Briggs &
Stratton service dealer clean the cooling system (H) per
recommended intervals (see Maintenance Schedule in
beginning of Maintenance section). Equally important is to
keep top of engine free from debris. See Clean Debris.
Check Valve Clearance (Model 073024 Only)
Regular valve clearance check and adjustment will improve
performance and extend engine life. This procedure cannot
be done without partial engine disassembly and the use of
special tools. For this reason we recommend that you have
an authorized dealer check and adjust valve clearance at
250 hours or as recommended (see Maintenance Schedule in
the Maintenance section).
C
A
B
E
D G
F
NOTICE
DO NOT use pressurized air or solvents to clean the foam
air cleaner.
• Pressurized air can damage the foam air cleaner and solvents
will dissolve the foam air cleaner.
WARNING
Contact with muffler area can result in serious
burns.
Exhaust heat/gases can ignite combustibles,
structures or damage fuel tank causing a fire.
• DO NOT touch hot parts and AVOID hot exhaust gases.
• Allow equipment to cool before touching.
• Keep at least 5 feet (1.5 m) of clearance on all sides of trash
pump including overhead.
H