Craftsman 316.350840 - Manual (Page 20)

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STORING A CHAIN SAW
CAUTION: Never store a chain
saw for longer than 30
days without performing the following proce­
dures,
Storing a chain saw for longer than 30 days requires stor­
age maintenance, Unless the storage instructions are fol­
lowed, fuel remaining in the carburetor will evaporate,
leaving gum-like deposits. This could lead to difficult start­
ing and result in costly repairs,
1. Remove the fuel tank cap slowly to release any pres­
sure in tank. Carefully drain the fuel tank by running
the unit dry or by tipping the motor housing/fuel tank
over and draining oil/fuel mixture into a container with
the same 2-cycle fuel mixture.
2. Start the engine and let it run until the unit stops to
remove fuel from carburetor.
3. Allow the engine to cool (approx. 5 minutes),
4. Using a spark plug wrench, remove the spark plug.
5. Pour 1 teaspoon of clean 2-cycle oil into the combus­
tion chamber. Pull starter rœe slowly several times to
coat internal components, Replace spark plug (Fig.
36},
NOTE: Store the unit in a dry place and away from possi­
ble sources of ignition such as a furnace, gas hot
water heater, gas dryer, etc.
---------------------------------- Fig. 36--------------------
REMOVING A UNIT FROM STORAGE
1.
2
,
Remove spark plug.
Pull starter ror
bustion chamt
briskly to clear excess oil from com-
3.
4.
5.
Clean and gap spark plug or install a new spark plug
with proper gap.
Prepare unit for operation.
Fill fuel tank with proper fuel / oil mixture. See Oil and
Fuel Information.
GUIDE BAR MAINTENANCE
Frequent lubrication of the guide bar (railed bar which
supports and carries the saw chain) sprocket tip is
required. Proper maintenance of the guide bar, as
explained in this section, is essential to keep your saw in
good working condition.
Sprocket Tip Lybrication
CAOTION"
The sprocket tip on
been pre-lubricated at the factory. Failure to
lubricate the guide bar sprocket tip as
explained below will result in poor perform­
ance and seizure, voiding the manufacturer's
warranty.
Lubrication of the sprocket tip is recom­
mended after 10 hours of use or once a
week, which ever occurs first. Always thor­
oughly clean guide bar sprocket tip before
lubrication.
The Lube Gun (not included) is recommended for applying
grease to the guide bar sprocket tip. The Lube Gun is
equipped with a needle nose tip which is necessary for
the efficient application of grease to the sprocket tip.
To lubricate the sprocket tip:
1. Move the STOP switch up.
NOTE; It is not necessary to remove the saw chain to
lubricate the guide bar sprocket tip. Lubrication
can be done on the job,
2. Clean the guide bar sprocket tip,
3. Using the Lube Gun (not included), insert tip of lube
gun into the lubrication hole and inject grease until it
appears at outside edge of sprocket tip (Fig. 37).
4. Rotate saw chain by hand. Repeat lubrication procedure
until the entire sprocket tip has been greased,
SAW CHAIN / BAR LUBRICATION
Adequate lubrication of the saw chain is essential at all
times to minimize friction with the guide bar.
Never starve the bar and chain of oil. Running the saw
with too little oil will decrease cutting efficiency, shorten
saw chain life, cause rapid dulling of chain, and cause
excessive wear of bar from overheating. Too little oil is evi­
denced by smoke, bar discoloration or pitch build-up,
NOTE; Saw chain stretches during use, particularly when
it is new, and it will occasionally be necessary to
adjust and tighten it. New chain will require adjust­
ment after about 5 minutes of operation.
Refer to Section Other Instructions: Automatic Oiler for
information on the automatic oiler,
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