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D-3
MAINTENANCE
D-3
Do not use petroleum solvents such as kerosene
to clean the air cleaner. They may cause deterio-
ration of the air cleaner. DO NOT OIL THE AIR
CLEANER OR USE PRESSURIZED AIR TO CLEAN
OR DRY THE AIR CLEANER.
To service the pre-cleaner:
1. Wash in liquid detergent and water.
2. Squeeze dry in a clean cloth.
3. Saturate in clean engine oil.
4. Squeeze in a clean, absorbent cloth to remove all
excess oil.
CLEAN ENGINE: Remove dirt and debris with a cloth
or a brush. Do not clean with a forceful spray of
water. Water might contaminate the fuel system.
Periodically clean the muffler area to remove
combustible debris.
Clean Rotating Screen: See Figure D.2. Clean the
rotating screen on your machineís engine as often as
needed to remove dirt or debris that may collect on
the screen. A dirty screen can result in engine over-
heating and damage.
FIGURE D.2 - CLEAN ROTATING
SCREEN/FINGER GUARD/DEBRIS GUARD
1. ROTATING SCREEN
CLEAN COOLING SYSTEM: See Figure D.3. Clean
the internal cooling fins and surfaces to prevent over-
speeding, overheating, and engine damage. Clean
every 100 operating hours or as often as necessary.
FIGURE D.3 - CLEAN COOLING SYSTEM
1. REMOVE DIRT FROM THESE AREAS.
CLEAN OR REPLACE SPARK PLUG: Clean or
replace the spark plug after every 100 hours of opera-
tion or every season, whichever comes first. Do not
blast the spark plug clean with an abrasive cleaning
device. Clean the plug by scraping it or by using a
wire brush. Wash the plug with a commercial sol-
vent. After cleaning or when installing a new spark
plug, set the terminal gap to .030 inch (.76 mm) with a
feeler gauge. See Figure D.4.
FIGURE D.4 - SET SPARK PLUG GAP
Use the Briggs & Stratton Engine Manual for latest Plug Gap Info.
CLEAN SPARK ARRESTER SCREEN: If the muffler
has the optional spark arrester assembly, remove it
every 50 hours or once a year, whichever comes first,
and inspect it. Clean the arrester. Replace it if you
find any damage.
POWER-ARC 4000
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CAUTION
CAUTION
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