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COOLING FIN CLEANING
A 3/8" WRENCH IS REQUIRED TO REMOVE MUFFLER..
Check air flow over the engine cylinder,, If restricted by debris,
remove Muffler and clean engine and Cylinder Cooling Fins
(Fig° 48),, Compressed air can be used, Replace Muffler,
EXHAUST PORT & MUFFLER SCREEN
CLEANING
Remove carbon deposits f_om cylinder, exhaust ports and
Muffler Screen each season or as required..
TO CARRY OUT THE FOLLOWING STEPS YOU WILL
NEED: A WIRE BRUSH, 3/8" WRENCH AND A HARD-
WOOD STICK.
1.. Remove Muffler Cap, Baffle and Screen° Lift Spark Ptug
Cap and remove Spark Plug (Fig. 48).
2, Pull Starter Rope to position piston below exhaust hotes,
Use a HARDWOOD STICK to scrape carbon deposits from
exhaust ports and surrounding exhaust chamber_
3. Blow out loosened carbon by pulling Starter Rope several
times.,
4. Use wire brush to clean Muffler Screen. Replace whenever
breaks in Screen are noted.
5. Reassemble Spark Plug and Spark Plug Cap, Baffle and
Screen and Muffler Cap.
WARNING TO PURCHASERS OF INTERNAL COMBUS-
TION ENGINE EQUIPMENT MACHINERY OR DEVICES
IN THE STATE OF CALIFORNIA.
The California law effective January 1, t974 prohibits the use
of any devices or equipment on any forest covered, brush cov-
ered, or grass covered land without providing or maintaining
in effective order, a Spark Arrestor attached to the exhaust
system. The equipment which you purchased DOES include
such a Spark Arrestor. It is aviolation of law, however, to use
it unless it is maintained in effective working order.
CLUTCH SHOE & SPRING
REPLACEMENT
YOU WILL NEED A SPANNER WRENCH (FIG. 49) FOR
CLUTCH REMOVAL° ORDER PART NUMBER 632AgA
FROM YOUR NEAREST SEARS SERVICE CENTER,
Your Chain Saw has a centrifugal Clutch. It isdesigned to en-
gage chain as engine speed increases_Slip or disengage chain as
engine speed decreases in a heavy cutting situation or with
Throttle Lever released. If Clutch slippage is excessive sothat
full engine power cannot be utilized, replace Clutch Shoes, If
Clutch does not disengage chain movement, when Throttle
Lever is released, replace Clutch Springs.
1_ Remove Chain Shield, Outer' Chain Guide, Bar and Chain
and Inner Chain Guide from Saw.
2,
SPARK PLUG CLEANING OR 3.
REPLACEMENT
TO CLEAN SPARK PLUG YOU WILL NEED A WIRE 4.
BRUSH OR POCKET KNIFE.
Use a wire brush or a pocket knife to clean deposits from the 5,
electrodes. Use care not to scratch or chip the ceramic section
of the Spark Plugo Be careful when removing, cleaning, gapping
and replacing the Spark Plug. If it is damaged it will not work 6.
properly and must be replace_lo The proper gap between the
Spark Pllug electrodes is o025'\ Should it be necessary to re-
pla¢-_ the plug, use Champion CJ-6. Replace the Spark Plug
each season or when suspected of being faulty, Reattach the
_nark Phln CaD to Spark Pluq.
.14.7.
Remove Spark Plug Cap and Spark Plug (Fig, 48). Tie a
knot in a nylon cord (such as a Starter Rope), Drop knot-
ted end of rope into cylinder so engine will not go past
top dead center.
Place Spanner Wrench in Clutch and turn clockwise to un-
screw Clutch from Engine Shaft (Fig_ 49).
Remove Clutch from Drum. Use small screwdrivers to pry
Clutch Shoesout to remove Clutch Springs (Fig. 50).
Replace worn Clutch Shoes and Springs. We suggest Clutch
Shoes and Springs be replaced at the same time,
Appty a THIN coat of lithium grease to Clutch Drum
Needle Bearing (Fig. 5t). NOTE: AVOID USING TOO
MUCH GREASE ON NEEDLE BEARING; GREASY
CLUTCH SHOES Wl LL CAUSE CLUTCH SLIPPAGE_
Reassemble Saw.
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