Craftsman 580.7523 User Manual page 19

Spark Arrester Service
Your engine is not factory-equipped with a spark arrester. In
some areas, it is illegal to operate an engine without a spark
arrester. Checklocal laws and regulations. A spark arrester is
availablefrom your nearest Sears service center. If you need
to order a spark arrester, please call 1-SOO-4-MY-HOIVlE
(469-4663).
The spark arrester must be serviced every 100 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.
WARHIHG
s_ Contact with muffler area can result in serious
burns.
_ Exhaustheat/gases can ignite combustibles,
structures or damage fuel tank causing a fire.
. DONOT touch hot partsandAVOIDhot exhaustgases.
* Allowequipment t o cool beforetouching.
. Keepat least5 feet (152cm) of clearance on all sidesof
pressure washerincludingoverhead.
* Codeof Federal R egulation (CFR) T itle 36 Parks,Forests, a nd
PublicPropertyrequireequipment p oweredby an internal
combustion engineto havea sparkarrester,maintained in
effectiveworkingorder,complyingto USDA Forestservice
standard 5100-1Cor later revision.In the Stateof California a
sparkarresteris required undersection4442 of the California
Publicresources code.Otherstatesmay havesimilar laws.
1. Removethe two 8 mm nuts (A) and remove muffler (B)
from cylinder.
2. Removethe three 4 mm screws (C) from exhaust
deflector (D), and remove deflector.
3. Removethe four 5 mm screws (E) from muffler
protector (F) and remove muffler protector.
4. Remove 4 mm screws (G) from spark arrester (H) and
remove spark arrester from muffler.
5. Use a brush to remove carbon deposits from spark
arrestor screen. Be careful to avoid damaging screen.
IMPORTANT:The spark arrestor screen must be free of
breaks and holes. Replacespark arrestor if it is damaged.
6. Install spark arrestor, muffler protector, exhaust
deflector and muffler in reverse order of disassembly.
Sediment Cup Cleaning
1. Move fuel valve to "Off" position, then remove fuel
sediment cup (J) and o-fin((K).
,
3.
4.
Wash sediment cup and o-ring in nonflammable solvent.
Dry thoroughly.
Place o-ring in fuel valve and install sediment cup.
Tighten sediment cup securely.
Move fuel valve to "On" position and check for leaks.
Replace o-ring if there is any leakage.
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