Craftsman 358.350480 Instruction manual

Instruction
Manual
I CRRFTSMRN°I
2.6 cu.in./42cc
GASOLINE
Model No.
358.350480
•
2-Cycle
CHAIN
SAW
- 18 in. Bar
Safety
• Assembly
• Operation
• Maintenance
•
Parts
List
•
Espa_ol
For Occasional
Use Only
WARNING:
Read and follow all Safety Rules and Operating
Instructions
before first use of this product.
For answers
Call 7 am-7
to your questions about this product:
pm, Mon-Sat;
Sun, 10 am-7 pm
1-800-235-5878
Sears, Roebuck
530086529
8/10/01
and Co., Hoffman
_Hours listed are Central Time)
Estates,
IL 60179 U.S.A.
Warranty
Safety Rules
Assembly
Operation
Maintenance
Service and Adjustments
2
2
6
7
14
17
Storage
Troubleshooting
Table
Emissions Statement
Parts List
Spanish
Parts & Ordering
19
20
21
23
26
Back Cover
FULL ONE YEAR WARRANTY ON CRAFTSMAN _ GAS CHAIN SAW
For one year from the date of purchase, when this Craftsman Gas Chain Saw is
maintained, lubricated and tuned up according to the instruction manual, Sears
will repair, free of charge, any defect in material or workmanship.
This warranty excludes the bar, chain, spark plug and air filter, which are
expendable parts and become worn during normal use.
If this Gas Chain Saw is used for commercial or rental purposes, this warranty
applies for 30 days from the date of purchase.
WARRANTY SERVICE IS AVAILABLE BY RETURNING THIS CHAIN SAW TO THE
NEAREST SEARS STORE OR SERVICE CENTER IN THE UNITED STATES.
This warranty gives you specific legal rights, and you may also have other rights
which vary from state to state.
Sears, Roebuck and Co., D/817 WA, Hoffman Estates, IL 60179
,_ WARNING:
Always disconnect
spark plug wire when making repairs except for carburetor adjustments. Because a chain saw is a high-speed
woodcutting tool, special safety precautions must be observed to reduce risk of
accidents. Careless or improper use of
this tool can cause serious injury.
PLAN AHEAD
• Restrict the use of your saw to adult
users who understand and can follow
the safety rules, precautions, and operating instructions found in this
manual.
Hearing
Protection
Snug
Fitting
Clothing
Safety
Shoes
-
_
"_I M
Safety Hat
......
Eye
_ ....
Protection
Heavy Duty
Gloves
_
Safety Chaps
• Wear protective gear. Always use
steel-toed safety footwear with nonslip soles; snug-fitting clothing;
heavy-duty, non-slip gloves; eye protection such as non-fogging, vented
goggles or face screen; an approved
safety hard hat; and sound barriers
(ear plugs or mufflers) to protect your
hearing. Regular users should have
hearing checked regularly as chain
saw noise can damage hearing.
• Secure hair above shoulder length. Do
not wear loose clothing or jewelry; they
can get caught in moving parts.
• Keep all parts of your body away
from the chain when the engine is
running.
• Keep children, bystanders, and animals at least 30 feet (10 meters)
away from the work area when starting and using the saw.
• Do not handle or operate a chain saw
when you are fatigued, ill, or upset, or
if you have taken alcohol, drugs, or
medication. You must be in good
physical condition and mentally alert. If
you have any condition that might be
aggravated by strenuous work, check
with doctor before operating.
• Do not start cutting until you have a
clear work area, secure footing, and
especially if you are felling a tree, a
retreat path.
OPERATE
YOUR
SAW
SAFELY
• Donotoperate
withonehand.
Seriousinjury
totheoperator,
helpers,
or
bystanders
mayresult
fromonehanded
operation.
Achainsawisintended
fortwo-handed
use.
• Operate
thechain
sawonlyinawellventilated
outdoor
area.
• Donotoperate
sawfromaladder
or
inatree.
• Make
surethechain
willnotmake
contact
withanyobject
whilestarting
theengine. Never try to start the saw
when the guide bar is in a cut.
• Do not put pressure on the saw, especially at the end of the cut. Doing
so can cause you to lose control
when the cut is completed.
• Stop engine before setting saw down.
• Hand carry saw only when engine is
stopped. Carry with muffler away
from body; guide bar & chain projecting behind you; guide bar preferably
covered with a scabbard.
• Do not operate a chain saw that is
damaged, improperly adjusted, or not
completely and securely assembled.
Always replace bar, chain, hand
guard, chain brake, or other parts immediately if they become damaged,
broken, or are otherwise removed.
MAINTAIN YOUR SAW IN GOOD
WORKING ORDER
• Have all chain saw service performed by a qualified service dealer
except the items listed in the MAINTENANCE section of this manual.
• Make certain the saw chain stops
moving when the throttle trigger is
released. For correction, refer to
CARBURETOR ADJUSTMENTS.
• Keep the handles dry, clean, and
free from oil or fuel mixture.
• Keep caps and fasteners securely
tightened.
• Nonconforming replacement components or the removal of safety devices
may cause damage to the unit and
possible injury to the operator or bystanders. Use only Craftsman accessories and replacement parts as recommended. Never modify your saw.
• Maintain chain saw with care.
• Keep unit sharp and clean for better
and safer performance.
• Follow instructions for lubricating and
changing accessories.
• Check for damaged parts. Before further use of the chain saw, a guard or
other part that is damaged should be
carefully checked to determine that it
will operate properly and perform its
intended function. Check for alignment
of moving parts, binding of moving
parts, breakage of parts, mounting and
any other conditions that may affect its
operation. A guard or other part that is
damaged should be properly repaired
or replaced by a Sears Service Center
unless otherwise indicated elsewhere
in the instruction manual.
• When not in use, chain saws should
be stored in a dry, high or locked-up
place out of the reach of children.
• When storing saw, use a scabbard or
carrying case.
HANDLE FUEL WITH CAUTION
• Do not smoke while handling fuel or
while operating the saw.
• Eliminate all sources of sparks or
flame in areas where fuel is mixed or
poured.
• Mix and pour fuel in an outdoor area
and use an approved, marked container for all fuel purposes. Wipe up
all fuel spills before starting saw.
• Move at least 10 feet (3 meters) from
fueling site before starting.
• Turn the engine off and let saw cool
in a non-combustible
area, not on
dry leaves, straw, paper, etc. Slowly
remove fuel cap and refuel unit.
• Store the unit and fuel in a cool, dry
well ventilated space where fuel vapors cannot reach sparks or open
flames from water heaters, electric
motors or switches, furnaces, etc.
GUARD AGAINST KICKBACK
Follow all safety rules to help avoid
kickback and other forces which can
result in serious injury.
_'_._
J_
Kickback Path
Avoid Obstructions
Clear The Working Area
increase the chance of kickback.
Follow manufacturer's
chain sharpening and maintenance instructions.
Check tension at regular intervals,
but never with engine running. Make
sure chain brake nuts are securely
tightened.
• Begin and continue cutting at full
speed. If the chain is moving at a
slower speed, there is greater
chance of kickback occurring.
• Use extreme caution when reentering a cut.
• Do not attempt cuts starting with the
tip of the bar (plunge cuts).
• Watch for shifting logs or other forces
that could close a cut and pinch or
fall into chain.
• Use the specified Reduced-Kickback
Guide Bar and Low-Kickback
Chain.
Avoid Pinch-Kickback:
• Be extremely aware of situations or
obstructions that can cause material
to pinch the top of or otherwise stop
the chain.
• Do not cut more than one log at a
time.
• Do not twist saw as bar is withdrawn
from an undercut when bucking.
Avoid Pull-In:
• Always begin cutting with the engine
at full speed and the saw housing
against wood.
• Use wedges made of plastic or
wood. Never use metal to hold the
cut open.
MAINTAIN CONTROL
Stand to the left of the saw
Z_
WARNING:
Avoid kickback which
can result in serious injury. Kickback
is the backward, upward or sudden forward motion of the guide bar occurring
when the saw chain near the upper tip
of the guide bar contacts any object
such as a log or branch, or when the
wood closes in and pinches the saw
chain in the cut. Contacting a foreign
object in the wood can also result in
loss of chain saw control.
• Rotational Kickback
can occur
when the moving chain contacts an
object at the upper tip of the guide
bar. This contact can cause the
chain to dig into the object, which
stops the chain for an instant. The
result is a lightning fast, reverse
reaction which kicks the guide bar up
and back toward the operator.
• Pinch-Kickback
can occur when the
the wood closes in and pinches the
moving saw chain in the cut along
the top of the guide bar and the saw
chain is suddenly stopped. This sudden stopping of the chain results in a
reversal of the chain force used to
cut wood and causes the saw to
move in the opposite direction of the
chain rotation. The saw is driven
straight back toward the operator.
• Pull-In can occur when the moving
chain contacts a foreign object in the
wood in the cut along the bottom of
the guide bar and the saw chain is
suddenly stopped. This sudden stopping pulls the saw forward and away
from the operator and could easily
cause the operator to lose control of
the saw.
underside
Thumb
on
of handlebar
\[
A# #
REDUCE THE CHANCE OF
KICKBACK
• Recognize that kickback can happen.
With a basic understanding of kickback, you can reduce the element of
surprise which contributes to accidents.
• Never let the moving chain contact
any object at the tip of the guide bar.
• Keep working area free from obstructions such as other trees, branches,
rocks, fences, stumps, etc. Eliminate
or avoid any obstruction that your
saw chain could hit while cutting.
• When cutting a branch, do not let the
guide bar contact another branch or
other objects around it.
• Keep saw chain sharp and properly
tensioned. A loose or dull chain can
r
\\
Elbow
locked
Never reverse hand positions
• A good, firm grip on the saw with both
hands will help you maintain control.
Don't let go. Grip the rear handle with
your right hand whether you are right
or left handed. Wrap the fingers of
your left hand over and around the
front handlebar, and your left thumb
under the front handlebar. Keep your
left arm straight with the elbow locked.
• Position your left hand on the front
handlebar so it is in a straight line
with your right hand on the rear handle when making bucking cuts.
4
Stand
slightly
totheleftsideofthe
sawtokeepyourbody
frombeing
in
adirect
linewiththecutting
chain.
• Stand
withyourweight
evenly
balanced
onbothfeet.
• Donotoverreach.
Youcouldbe
drawn
orthrown
offbalance
andlose
control.
• Donotcutabove
shoulder
height.
It
isdifficult
tomaintain
control
ofsaw
above
shoulder
height.
KICKBACK
SAFETY
FEATURES
,_ WARNING:
The following features
are included on your saw to help reduce
hazard of kickback; however, such features will not totally eliminate this danger.
Do not rely only on safety devices. Follow all safety rules to help avoid kickback and other forces which can result
in serious injury.
• Front Hand Guard: designed to reduce the chance of your left hand
contacting the chain if your hand
slips off the front handlebar.
• Position of front and rear handlebars:
designed with distance between
handles and "in-line" with each other.
The spread and "in-line" position of
the hands provided by this design
work together to give balance and
resistance in controlling the pivot of
the saw back toward the operator if
kickback occurs.
• Reduced-Kickback
Guide Bar: designed with a small radius tip which
reduces the size of the kickback
danger zone on the bar tip. This type
bar has been demonstrated to significantly reduce the number and seriousness of kickbacks when tested in
accordance with ANSI B175.1.
I"_'_
Small Radius
I
"_ Tip Guide Bar
Tip Guide Bar I
..-J
• Low-Kickback Chain: has met kickback performance requirements when
tested on a representative sample of
chain saws below 3.8 cubic inch
displacement specified in ANSI
B175.1.
Low-Kickback
Chain
Contoured Depth Gauge
j_ ....
....
Elongated Guard Link
force and allows
wood
to gradually
deflects
kickback
ride into Cutter
CHAIN BRAKE
• Chain Brake: designed to stop the
chain in the event of kickback.
m_WARNINu:
WE DO NOT REPRESENT AND YOU SHOULD NOT ASSUME THAT THE CHAIN BRAKE WILL
PROTECT YOU IN THE EVENT OF A
KICKBACK. Kickback is a lightning fast
action which throws the bar and rotating chain back and up toward the operator. Kickback can be caused by allowing contact of the bar tip in the
danger zone with any hard object.
Kickback can also be caused by
pinching the saw chain along the top
of the guide bar. This action may push
the guide bar rapidly back toward the
operator. Either of these events may
cause you to lose control of the saw
which could result in serious injury or
even death. DO NOT RELY UPON ANY
OF THE DEVICES BUILT INTO YOUR
SAW. YOU SHOULD USE THE SAW
PROPERLY AND CAREFULLY TO AVOID
KICKBACK. Reduced-kickback
guide
bars and low-kickback
saw chains reduce the chance and magnitude of
kickback and are recommended.
Your
saw has a low kickback chain and bar
as original equipment.
Repairs on a
chain brake should be made by an authorized Sears Service Center. Take
your unit to the place of purchase or to
your nearest Sears Service Center.
• Tip contact in some cases may cause
a lightning fast reverse REACTION,
kicking guide bar up and back toward
operator.
• Pinching the saw chain along the top
of the guide bar may push the guide
bar rapidly back toward the operator.
• Either of these reactions may cause
you to lose control of the saw which
could result in serious injury. Do not
rely exclusively upon safety devices
built into your saw.
ARRESTING
SCREEN:
Your
SAFETY
NOTICE:
Exposure
tovibra- SPARK
tionsthrough
prolonged
useofgaso- sawisequipped
withatemperature
linepowered
hand
toolscould
cause limiting
muffler
andspark
arresting
blood
vessel
ornerve
damage
inthe
screen
which
m
eets
therequirements
fingers,
hands,
andjoints
ofpeople ofCalifornia
Codes
4442and4443.
All
prone
tocirculation
disorders
or
U.S.forest
landandthestates
ofCaliabnormal
swelling.
Prolonged
usein
Idaho,
Maine,
Minnesota,
New
coldweather
hasbeenlinked
toblood fornia,
Oregon,
andWashington
revessel
damage
inotherwise
healthy Jersey,
quirebylawthatmany
internal
compeople.
Ifsymptoms
occur
suchas
bustion
engines
beequipped
witha
numbness,
pain,
lossofstrength,
arresting
screen.
Ifyouoperate
change
inskincolor
ortexture,
orloss spark
achain
sawinastate
orlocale
where
offeeling
inthefingers,
hands,
or
exist,
youarelegally
joints,
discontinue
theuseofthistool suchregulations
andseekmedical
attention.
Ananti-vi- responsible
formaintaining
theoperatcondition
ofthese
parts.
Failure
to
bration
system
does
notguarantee
the ing
ofthelaw.Refer
to
avoidance
ofthese
problems.
Users dosoisaviolation
Responsibilities
chartinthe
whooperate
power
toolsonacontinu- Customer
MAINTENANCE
section.
alandregular
basis
must
closely
monitor
theirphysical
condition
and
STANDARDS:
Thischainsawislisted
thecondition
ofthistool.
byUnderwriters
Laboratories,
Inc.in
CHAIN
BRAKE:
Ifthissawistobe
accordance
withAmerican
National
used
forcommercial
logging,
achain Standards
forGasoline-Powered
brake
isrequired
andshallnotbere- Chain
S
aws
Safety
Requirements
moved
orotherwise
disabled
tocom- (ANSI
B175.1-2000).
plywithFederal
OSHA
Regulations
for
Commercial
Logging.
WARNING:
Before
using
chain
saw,ensure
allfasteners
aresecure.
CARTON
CONTENTS
Check
carton
contents
against
thefollowing
list.
Model
358.350480
• Chain
Saw(fully
assembled)
• Bartool
• 2-cycle
engine
oil
• Carrying
case
Examine
partsfordamage.
Donotuse
damaged
parts.
Ifyouneedassistance
orfindthat
parts
aremissing
ordamaged,
please
call1-800-235-5878.
NOTE:
Itisnormal
tohear
thefuelfilter
rattle
inanempty
fueltank.
Yourunithasbeenfactory
tested
and
thecarburetor
precisely
adjusted.
Asa
result
youmaysmellgasoline
orfinda
dropofoil/fuel
residue
onthemuffler
when
youunpack
theunit.
ASSEMBLY
Yoursawisfullyassembled;
no
assembly
isnecessary.
KNOW
YOUR
SAW
READ THIS INSTRUCTION MANUAL AND SAFETY RULES BEFORE OPERATING YOUR
CHAIN SAW. Compare the illustrations with your unit to familiarize yourself with the
location of the various controls and adjustments. Save this manual for future reference.
Chain
Adjustment Tool
Front Hand Guard
(Bar Tool)
Front Handle
_
r_
f_,_€/
Starter Rope
IVI I/I
Chain
Muffler
J"l_
Switch
__'_
Primer
Bulb
Housing
Throttle
Lockout
Rear
L
Handle _
Throttle
Trigger
Cylinder/Cover
;f-_
_
/--,__
_
_'_oo
,%, /_m
_
/I
/
]
_,_,
.....
\
_ajusung __
_u_vv
Fuel Mix Fill Cap
_. ! 4
- /
_ve_ _/
-/'_"_----_
_
Choke/
Chain
Chain Chain Brake Nuts
Fast Idle Brake
Catcher
Lever
Chain
Direction
of Travel
/
Guide Bar
PRIMER BULB
The PRIMER BULB circulates fuel to the
carburetor to provide quicker starting.
CHAIN BRAKE
The CHAIN BRAKE is a device designed to stop the chain if kickback occurs. The chain brake activates automatically in the event of kickback. The
chain brake activates manually if the
front hand guard is pushed forward.
The chain brake is disengaged by pulling the front hand guard back toward
the front handle as far as possible.
CHAIN TENSION
It is normal for a new chain to stretch
during first 30 minutes of operation. You
should check your chain tension frequently. See CHAIN TENSION under the
SERVICE AND ADJUSTMENTS section.
ON/STOP SWITCH
The ON/STOP SWITCH is used to stop
the engine.
THROTTLE TRIGGER
The THROTTLE TRIGGER controls engine speed.
THROTTLE
LOCKOUT
The THRO-FILE LOCKOUT must be
pressed before you can squeeze the
throttle trigger. This feature prevents you
from accidentally squeezing the trigger.
CHOKE/FAST
IDLE LEVER
The choke and fast idle are set by pulling the CHOKE/FAST IDLE LEVER out
fully for cold or refueled starting. The
choke provides additional fuel to the
engine during cold starting.
7
m_WARNIN_I:
Muffler
isveryhot
during
andafteruse.Donottouch
the
muffler
orallow
combustible
material
suchasdrygrass
orfueltodoso.
BEFORE
STARTING
ENGINE
,_IWARNING:
Be sure to read the
fuel handling information in the safety
rules section of this manual before you
begin. If you do not understand the
fuel handling information do not attempt to fuel your unit. Seek help from
someone that does understand the information or call the customer assistance help line at 1-800-235-5878.
GUIDE BAR AND CHAIN OIL
The bar and chain require lubrication.
The chain oiler provides continuous
lubrication to the chain and guide bar.
Be sure to fill the bar oil tank when you
fill the fuel tank (Capacity = 6.8 ft. oz.).
Lack of oil will quickly ruin the bar and
chain. Too little oil will cause overheating shown by smoke coming from the
chain and/or discoloration
of the bar.
For maximum guide bar and chain life,
we recommend you use Craftsman
chain saw bar oil. If Craftsman bar oil
is not available, you may use a good
grade SAE 30 oil until you are able to
obtain Craftsman brand. The oil output
is automatically metered during operation. Your saw will use approximately
one tank of bar oil for every tank of fuel
mix. Always fill the bar oil tank when
you fill the fuel tank.
FUELING ENGINE
,_IWARNING:
Remove fuel cap
slowly when refueling.
This engine is certified to operate on
unleaded gasoline. Before operation,
gasoline must be mixed with a good
quality 2-cycle air-cooled engine oil.
We recommend Craftsman brand oil.
Mix gasoline and oil at a ratio of 40:1.
A 40:1 ratio is obtained by mixing 3.2
ounces of oil with 1 gallon of unleaded
gasoline. Included with this saw is a
3.2 ounce container of Craftsman
brand oil. Pour the entire contents of
this container into 1 gallon of gasoline
to achieve the proper fuel mixture.
DO NOT USE automotive oil or boat oil.
These oils will cause engine damage.
When mixing fuel follow the instructions
printed on the oil container.
Once oil is added to the gasoline,
shake container momentarily to assure
that the fuel is thoroughly mixed. Always read and follow the safety rules
relating to fuel before fueling your unit.
IMPORTANT
Experience indicates that alcohol
blended fuels (called gasohol or using
ethanol or methanol) can attract moisture which leads to separation and
formation of acids during storage. Acidic
gas can damage the fuel system of an
engine while in storage. To avoid engine
problems, the fuel system should be
emptied before storage for 30 days or
longer. Drain the gas tank, start the engine and let it run until the fuel lines and
carburetor are empty. Use fresh fuel
next season. See STORAGE instructions
for additional information.
Never use engine or carburetor cleaner products in the fuel tank or permanent damage may occur.
See the STORAGE section for additional information.
CHAIN BRAKE
Ensure chain brake is disengaged by
pulling the front hand guard back toward the front handle as far as possible. The chain brake must be disengaged before cutting with the saw.
_IWARNING:
The chain must not
move when the engine runs at idle
speed. If the chain moves at idle
speed, refer to CARBURETOR ADJUSTMENT within this manual. Avoid contact with the muffler. A hot muffler can
cause serious burns.
STOPPING YOUR ENGINE
• Move ON/STOP switch to the STOP
position.
ON/STOP SWITCH
J
ON _
iSTOPi
STARTING POSITION
• To start the engine, hold the saw
firmly on the ground as illustrated.
Make sure the chain is free to turn
without contacting any object.
CHOKE/FAST IDLE LEVER
Starter Rope Handle
L
(k_'?l_
I
I, _I'Y(,_
_1_,
_TI I
(SIDEVlEW)
Left Hand
F-"T
on Front
Fast Idle Lever
IMPORTANT
POINTS TO REMEMBER
When pulling the starter rope, do not
use the full extent of the rope as this
can cause the rope to break. Do not
let starter rope snap back. Hold the
handle and let the rope rewind slowly.
For cold weather starting, start the unit
at FULL CHOKE; allow the engine to
warm up before squeezing the throttle
trigger.
NOTE: Do not cut material with the
choke/fast idle lever at the FULL
CHOKE position.
STARTING A COLD ENGINE (or a
warm engine after running out of
fuel)
NOTE: In the following steps, when
the choke/fast idle lever is pulled out to
the full extent, the correct throttle setting for starting is set automatically.
1. Move ON/STOP switch to the ON
position.
2. Pull choke/fast idle lever out to the
full extent.
3. Slowly press primer bulb 6 times.
4. Pull the starter rope quickly with
your right hand 5 times. Then, proceed to the next step.
NOTE: If the engine sounds as if it is
trying to start before the 5th pull, stop
pulling and immediately proceed to the
next step.
5. Push the choke/fast idle lever in
completely (to the OFF CHOKE
position).
6. Pull the starter rope quickly with your
right hand until the engine starts.
7. Allow the engine to run for approximately 5 seconds. Then, squeeze
and release throttle trigger to allow
engine to return to idle speed.
Switch
-_-q?¢_ v_
-
_,£_
,,_ej
Primerr",_h/'F
Bulb
II
/' V#,J
Choke!Fast Idle
Lever
OFF
FULL
STARTING A WARM ENGINE
1. Move ON/STOP switch to the ON
position.
2. Pull the choke/fast idle lever out to
the full extent, then push the lever
back in completely (to the OFF
CHOKE position).
3. Slowly press primer bulb 6 times.
4. Pull the starter rope quickly with your
right hand until the engine starts.
5. Squeeze and release throttle trigger, allowing engine to idle.
DIFFICULT STARTING (or starting a
flooded engine)
The engine may be flooded if it has not
started after 10 pulls.
Flooded engines can be cleared of excess fuel by following the warm engine
starting procedure listed above. Insure
the ON/STOP switch is in the ON position.
Starting could require many pulls depending on how badly the unit is
flooded. If engine still fails to start, refer
to the TROUBLESHOOTING TABLE or
call 1-800-235-5878.
CHAIN BRAKE
Z_
WARNING:
If the brake band is
worn too thin it may break when the
chain brake is triggered. With a broken
brake band, the chain brake will not
stop the chain. The chain brake must
be replaced if any part is worn to less
than 1/32" thick. Repairs on a chain
brake should be made by your Sears
Service Center. Take your unit to the
place of purchase or to the nearest
Sears Service Center.
• This saw is equipped with a chain
brake. The brake is designed to stop
the chain if kickback occurs.
• The inertia-activated
chain brake is
activated if the front hand guard is
pushed forward, either manually (by
hand) or automatically (by sudden
movement).
• If the brake is already activated, it is
disengaged by pulling the front hand
guard back toward the front handle
as far as possible.
• When
cutting
withthesaw,
thechain
brake
mustbedisengaged.
Disengaged
Braking function control
CAUTION: The chain brake must be
checked several times daily. The engine
must be running when performing this
procedure. This is the only instance
when the saw should be placed on the
ground with the engine running.
Place the saw on firm ground. Grip the
rear handle with your right hand and
the front handle with your left hand.
Apply full throttle by fully depressing
the throttle trigger. Activate the chain
brake by turning your left wrist against
the hand guard without releasing your
grip around the front handle. The chain
should stop immediately.
Inertia activating
function
control
,_WARNING:
When performing the
following procedure, the engine must
be turned off.
Grip the rear handle with your right
hand and the front handle with your left
hand. Hold the chain saw approximately 14" (35 cm) above a stump or
other wooden surface. Release your
grip on the front handle and use the
weight of the saw to let the tip of the
guide bar fall forward and contact the
stump. When the tip of the bar hits the
stump, the brake should activate.
OPERATING TIPS
• Check chain tension before first use
and after 1 minute of operation. See
CHAIN TENSION in the MAINTENANCE
section.
• Cut wood only. Do not cut metal,
plastics, masonry, non-wood building
materials, etc.
• Stop the saw if the chain strikes a
foreign object. Inspect the saw and
repair parts as necessary.
• Keep the chain out of dirt and sand.
Even a small amount of dirt will
quickly dull a chain and increase the
possibility of kickback.
• Practice cutting a few small logs using the following steps. This will help
you get the "feel" of using your saw
before you begin a major sawing operation.
• Squeeze the throttle trigger and allow the engine to reach full speed
before cutting.
• Begin cutting with the saw frame
against the log.
• Keep the engine at full speed the
entire time you are cutting.
• Allow the chain to cut for you. Exert
only light downward pressure.
• Release the throttle trigger as soon
as the cut is completed, allowing
the engine to idle. If you run the
saw at full throttle without a cutting
load, unnecessary wear can occur.
• To avoid losing control when cut is
complete, do not put pressure on
saw at end of cut.
• Stop engine before setting saw down.
TREE FELLING TECHNIQUES
'_WARNING:
Check for broken or
dead branches which can fall while
cutting causing serious injury. Do not
cut near buildings or electrical wires if
you do not know the direction of tree
fall, nor cut at night since you will not
be able to see well, nor during bad
weather such as rain, snow, or strong
winds, etc.
• Carefully plan your sawing operation
in advance.
• Clear the work area. You need a
clear area all around the tree so you
can have secure footing.
• The chain saw operator should keep
on the uphill side of the terrain as the
tree is likely to roll or slide downhill
after it is felled.
• Study the natural conditions that can
cause the tree to fall in a particular
direction. These conditions include:
• The wind direction and speed.
• The lean ofthe tree. The lean of a
tree might not be apparent due to
uneven or sloping terrain. Use a
plumb or level to determine the direction of tree lean.
• Weight and branches on one side.
• Surrounding trees and obstacles.
• Look for decay and rot. If the trunk is
rotted, it can snap and fall toward the
operator.
• Make sure there is enough room for
the tree to fall. Maintain a distance of
2-1/2 tree lengths from the nearest
person or other objects. Engine
noise can drown out a warning call.
10
• Remove
dirt,stones,
loose
bark,
nails,
staples,
andwirefromthetree
where
cutsaretobemade.
_l_z,
t....
Hinge holds tree on
stump and helps
control fall
Opening of
felling cut
Plan
aclear
retreat
path
(}--_-
Closing
of notch
Direction
ofFall
45 ° /,_
FELLING LARGE TREES
(6 inches in diameter or larger)
The notch method is used to fell large
trees. A notch is cut on the side of the
tree in the desired direction of fall. After
a felling cut is made on the opposite
side of tree, the tree will tend to fall in
the direction of the notch.
NOTE: If tree has large buttress roots,
remove them before making the notch.
If using saw to remove buttress roots,
keep saw chain from contacting
ground to prevent dulling of the chain.
NOTCH CUT AND FELLING TREE
• Make notch cut by cutting the top of
the notch first. Cut through 1/3 of the
diameter of the tree. Next complete
the notch by cutting the bottom. See
illustration. Once the notch is cut, remove the wedge of wood from tree.
First cut
I
Felling cut here
/
2-
NOTE: Before felling cut is complete,
use wedges to open the cut when
necessary to control the direction of
fall. To avoid kickback and chain
damage, use wood or plastic wedges,
but never steel or iron wedges.
• Be alert to signs that the tree is
ready to fall: cracking sounds, widening of the felling cut, or movement in
the upper branches.
• As tree starts to fall, stop saw, put it
down, and get away quickly on your
planned retreat path.
• DO NOT use your saw to cut down a
partially fallen tree. Be extremely
cautious with partially fallen trees
that may be poorly supported. When
a tree doesn't fall completely, set the
saw aside and pull down the tree
with a cable winch, block and tackle,
or tractor.
CUTTING A FALLEN TREE
(BUCKING)
Bucking is the term used for cutting a
fallen tree to the desired log size.
_ik WARNING:
Notch
, _._
Second out'J"
._.
/
\
"_-_[-'" z.
_nge
• After removing the wood from the
notch, make the felling cut on the opposite side of the notch. This is done
by making a cut about two inches
higher than the center of the notch.
This will leave enough uncut wood
between the felling cut and the notch
to form a hinge. This hinge will help
prevent the tree from falling in the
wrong direction.
Do not stand on the
log being cut. Any portion can roll
causing loss of footing and control. Do
not stand downhill of the log being cut.
IMPORTANT POINTS
• Cut only one log at a time.
• Cut shattered wood very carefully;
sharp pieces of wood could be flung
toward operator.
• Use a sawhorse to cut small logs.
Never allow another person to hold
the log while cutting and never hold
the log with your leg or foot.
• Do not cut in an area where logs,
limbs, and roots are tangled. Drag logs
into a clear area before cutting them
by pulling out exposed and cleared
logs first.
11
BUCKING
TECHNIQUES
WARNING:
Ifsawbecomes
pinched
orhunginalog,don'ttryto
forceitout.Youcanlosecontrol
ofthe
sawresulting
ininjury
and/or
damage
tothesaw.Stopthesaw,drivea
wedge
ofplastic
orwood
intothecut
until
thesawcanberemoved
easily.
Restartsawandcarefully
reenter
thecut.
Donotuseametal
wedge.
Donotattempt
torestart
yoursawwhen
itis
pinched
orhunginalog.
Use
a wedge to remove pinched saw
Turn saw OFF and use a plastic or
wooden wedge to force cut open.
Overcutting
begins on the top side of
the log with the bottom of the saw
against the log. When overcutting use
light downward pressure.
Overcutting
Undercutting
Second cut
First cut on compression side of log
BUCKING WITHOUT A SUPPORT
• Overcut through 1/3 of the diameter
of the log.
• Roll the log over and finish with a
second overcut.
• Watch for logs with a compression
side to prevent the saw from pinching. See illustrations for cutting logs
with a compression side.
BUCKING USING A LOG OR
SUPPORT STAND
• Remember your first cut is always on
the compression side of the log. (Refer to the illustrations below for your
first and second cut).
• Your first cut should extend 1/3 of the
diameter of the log.
• Finish with your second cut.
Using a log for support
2naCut
1 st Cut
Undercutting
involves cutting on the
underside of the log with top of saw
against the log. When undercutting
use light upward pressure. Hold saw
firmly and maintain control. The saw
will tend to push back toward you.
_...__....._
_WARNING:
Never turn saw upside down to undercut. The saw cannot be controlled in this position.
_. 1st Cut
.__-J
Using
Always make your first cut on the
compression side of the log. The compression side of the log is where the
pressure of the log's weight is concentrated.
a support
/
1st Cut
First cut on compression side of log
L
2 nd
Second
cut
12
Cut j_
stand
_nd
Cut
LIMBING AND PRUNING
guard against kickback.
Do not allow
the moving chain to contact any other
branches or objects at the nose of the
guide bar when ]imbing or pruning. Allowing such contact can result in serious injury.
• Keep the tree between you and the
chain.
• Remove larger branches with the
cutting techniques described in
BUCKING WITHOUT A SUPPORT.
• Always use an overcut to cut small
and freely hanging limbs. Undercutting could cause limbs to fall and
pinch the saw.
_LWARNING:
PRUNING
,_L WARNING:
Be alert for and
Never climb into a
tree to limb or prune. Do not stand on
ladders, platforms, a log, or in any position which can cause you to lose
your balance or control of the saw.
IMPORTANT POINTS
• Watch out for springpoles.
Springpo]es are small size limbs
which can whip toward you, or pull
you off balance. Use extreme caution when cutting small size limbs.
• Be alert for springback from any
branches that are bent or under
pressure. Avoid being struck by the
branch or the saw when the tension
in the wood fibers is released.
• Frequently clear branches out of the
way to avoid tripping over them.
LIMBING
• Limb a tree only after it is cut down.
• Leave the larger limbs underneath
the felled tree to support the tree as
you work.
• Start at the base of the felled tree
and work toward the top, cutting
branches and limbs. Remove small
limbs with one cut.
_WARNING:
Limit pruning to limbs
shoulder height or below. Do not cut if
branches are higher than your shoulder. Get a professional to do the job.
• Make your first cut 1/3 of the way
through the bottom of the limb. This
cut will make the limb sag so that it
falls easily on the second cut.
• Next make the second cut an overcut all the way through the limb,
• Finish the pruning operation by using
an overcut so that the stump of the
limb protrudes 1 to 2 inches from the
trunk of the tree.
/_
I
13
3rd cut 1 to 2 in.
\
from trunk of tree
,_
WARNING:
Disconnect the spark plug before performing
except for carburetor adjustments.
CUSTOMER
RESPONSIBILITIES
Fill in dates as you complete
regular service
Check for damaged/worn
parts
Before
:;After
Use
Use
i
_"
Check chain tension
_"
Check chain sharpness
_"
Check guide bar
_"
Check fuel mixture level
Check guide bar and chain oil
Lubricate
bar sprocket
Every Every Yearly i Service
5 hrs. 25 hrs.
Dates
_,.
Check for loose fasteners/parts
Inspect
maintenance
_"
_
_"
hole
and clean unit & decals
i
i
Check chain brake
Clean guide bar groove
Clean air filter
Clean/inspect
muffler and spark
arresting screen
Replace
i
spark plug and fuel filter i
GENERAL RECOMMENDATIONS
The warranty on this unit does not cover items that have been subjected to
operator abuse or negligence. To receive full value from the warranty, the
operator must maintain unit as instructed in this manual. Various adjustments
will need to be made periodically to
properly maintain your unit.
• Once a year, replace the spark plug,
air filter element, and check guide
bar and chain for wear. A new spark
plug and air filter element assures
proper air-fuel mixture and helps
your engine run better and last longer.
CHECK FOR DAMAGED
OR
WORN PARTS
Contact Sears Service Center for replacement of damaged or worn parts.
NOTE: It is normal for a small amount
of oil to appear under the saw after engine stops. Do not confuse this with a
leaking oil tank.
• ON/STOP Switch - Ensure ON/STOP
switch functions properly by moving
the switch to the STOP position.
Make sure engine stops; then restart
engine and continue.
• Fuel Tank - Do not use saw if fuel
tank shows signs of damage or
leaks.
• Oil Tank - Do not use saw if oil tank
shows signs of damage or leaks.
CHECK FOR LOOSE
FASTENERS AND PARTS
• Chain Brake Nuts
• Chain
• Muffler
• Cylinder Shield
• Air Filter
• Handle Screws
• Vibration Mounts
• Starter Housing
• Front Hand Guard
CHECK
CHAIN TENSION
WARNING:
Wear protective
gloves when handling chain. The
chain is sharp and can cut you even
when it is not moving.
Chain tension is very important.
Chains stretch during use. This is especially true during the first few times
14
youuseyoursaw.Always
check
chain
tension
each
timeyouuseand
refuel
yoursaw.
1. Usethescrewdriver
endofthe
chain
adjustment
tool(bartool)to
move
chainaround
guide
barto
ensure
kinks
donotexist.
The
chain
should
rotate
freely.
Bar
_
Chain Brake
Nuts
2.
3.
Adjusting
Screw
Chain Adjustment
Tool
(Bar Tool)
Loosen chain brake nuts until they
are finger tight against the chain
brake.
Turn adjusting screw clockwise until chain solidly contacts bottom of
guide bar rail.
Using bar tool, roll chain around
guide bar to ensure all links are in
bar groove.
5. Lift up tip of guide bar to check for
sag. Release tip of guide bar, then
turn adjusting screw until sag does
not exist.
6. While lifting tip of guide bar, tighten
chain brake nuts securely with the
bar tool.
,_ WARNING:
If the saw is operated
with a loose chain, the chain could
jump offthe guide bar and result in serious injury.
CHECK CHAIN SHARPNESS
A sharp chain makes wood chips. A
dull chain makes a sawdust powder
and cuts slowly. See CHAIN SHARPENING in the SERVICE AND ADJUSTMENTS section.
CHECK GUIDE BAR
Conditions which require guide bar
maintenance:
• Saw cuts to one side or at an angle.
• Saw has to be forced through the cut.
• Inadequate supply of oil to bar/chain.
Check the condition of guide bar each
time chain is sharpened. A worn guide
bar will damage the chain and make
cutting difficult.
After each use, ensure ON/STOP
switch is in the STOP position, then
clean all sawdust from the guide bar
and sprocket hole.
To maintain guide bar:
• Move ON/STOP switch to STOP.
• Loosen and remove chain brake
nuts and chain brake. Remove bar
and chain from saw.
• Clean the oil holes and bar groove
after each 5 hours of operation.
4.
Remove Sawdust From
Guide Bar Groov_
_
o_ _
Oil Holes
__
Sprocket Hole
o _
Chain Brake
Nuts
• Add lubricant to sprocket hole after
each use.
• Burring of guide bar rails is a normal
process of rail wear. Remove these
burrs with a flat file.
• When rail top is uneven, use a flat file
to restore square edges and sides.
_ _rT_ File Rail Edges_r]
17
and Sides
I U I
Square
I
I
Use the screwdriver end of the bar
tool to move chain around guide bar.
8. If chain does not rotate, it is too
tight. Slightly loosen chain brake
nuts and loosen chain by turning
the adjusting screw counterclockwise. Retighten chain brake nuts.
9. If chain is too loose, it will sag below the guide bar. DO NOT operate
the saw if the chain is loose.
Worn Groove
Correct Groove
Replace guide bar when the groove is
worn, the guide bar is bent or cracked,
or when excess heating or burring of
the rails occurs, If replacement is necessary, use only the guide bar specified for your saw in the repair parts list
or on the decal located on the chain
7.
I"1
saw.
15
CHECK
FUEL
MIXTURE
LEVEL
• SeeFUELING
ENGINE
under
theOPERATION
section.
LUBRICATION
Bar
BarOil _ J
Sprocket
Fill Cap
_'1[
• See GUIDE BAR AND CHAIN OIL under the OPERATION section.
• Lubricate bar sprocket hole after
each use.
INSPECT AND CLEAN UNIT AND
DECALS
• After each use, inspect complete unit
for loose or damaged parts. Clean
the unit and decals using a damp
cloth with a mild detergent.
• Wipe off unit with a clean dry cloth.
CHECK CHAIN BRAKE
• See CHAIN BRAKE in the OPERATION
section.
CLEAN AIR FILTER
A dirty air filter decreases the life and
performance of the engine and increases fuel consumption and harmful
emissions. Always clean your air filter
after 15 tanks of fuel or 5 hours of operation, whichever comes first. Clean
more frequently in dusty conditions. A
used air filter can never be completely
cleaned. It is advisable to replace your
air filter with a new one after every 50
hours of operation, or annually, whichever comes first. To clean filter:
1. Loosen 3 screws on cylinder cover.
2. Remove cylinder cover.
3. Remove air filter.
4. Clean the air filter using hot soapy
water. Rinse with clean cool water.
Air dry completely before reinstalling.
5. Lightly oil air filter before installing
to improve the efficiency of air filter.
Use 2-cycle engine oil or motor oil
(SAE 30). Squeeze excess oil from
filter.
6. Reinstall air filter.
7. Reinstall cylinder cover and 3
screws. Tighten securely.
A ....
,,-'->_-,4-_
Cylinder
Jr i-lker
._
/%'_'--/_
_f
/__y
L,over
"_/_
_-_j_/_./S
crews
!___2_Ylvi
ndrer
INSPECT MUFFLER AND SPARK
ARRESTING
SCREEN
As the unit is used, carbon deposits
build up on the muffler and spark arresting screen, and must be removed
to avoid creating a fire hazard or affecting engine performance.
Replace the spark arresting screen if
breaks occur.
Muffler Diffuser
Spark
Arresting
Screen
Muffler
Cover
Muffle
Body
Muffler
Cover
CLEANING THE SPARK
ARRESTING
SCREEN
Cleaning is required every 25 hours of
operation or annually, whichever
comes first.
1. Loosen and remove the 2 muffler
cover screws.
2. Remove the muffler cover (cover
snaps off muffler body).
3. Remove muffler diffuser and spark
arresting screen assembly. Notice
the orientation of these parts for
reassembling.
4. Clean the spark arresting screen
with a wire brush. Replace screen
if breaks are found.
5. Replace any broken or cracked
muffler parts.
6. Reinstall diffuser and spark arresting screen assembly with round
holes facing up.
7. Reinstall muffler cover and 2
screws. Tighten securely.
REPLACE SPARK PLUG
The spark plug should be replaced
each year to ensure the engine starts
easier and runs better. Ignition timing
is fixed and nonadjustable.
1. Loosen 3 screws on cylinder cover.
2. Remove the cylinder cover.
3. Pull off the spark plug boot.
4. Remove spark plug from cylinder
and discard.
5. Replace with Champion CJ-7Y
spark plug and tighten securely
with a 3/4 inch socket wrench.
Spark plug gap should be 0.025 in.
6. Reinstall the spark plug boot.
7. Reinstall the cylinder cover and 3
screws. Tighten securely.
16
Screws
Cylinder
Cover
Spark
Plug Boot
Spark
Plug
REPLACE FUEL FILTER
To replace the fuel filter, drain your unit
by running it dry of fuel. Remove fuel
cap and its connected retainer from
tank. Pull filter from tank and remove
from line. Replace and reassemble.
4,
,_ WARNING:
Disconnect the spark
plug before performing maintenance,
service, or adjustments except for carburetor adjustments.
CHAIN SHARPENING
Chain sharpening requires special
tools. You can purchase sharpening
tools at Sears or go to a professional
chain sharpener.
CHAIN REPLACEMENT
WARNING:
Wear protective
gloves when handling chain. The
chain is sharp and can cut you even
when it is not moving.
It is normal for a new chain to stretch
during the first 15 minutes of operation.
You should recheck your chain tension
frequently and adjust the chain tension
as required. See CHAIN TENSION section.
Replace the old chain when it becomes worn or damaged. Use only the
Low-Kickback replacement chain specified in the repair parts list. The correct replacement bar and chain is also
specified on a decal located on the
chain saw.
See your Sears Service Center to replace and sharpen individual cutters
on your chain.
TO REPLACE CHAIN:
1. Move ON/STOP switch to the STOP
position.
2. Remove chain brake nuts.
3. Remove chain brake.
Chain
Brake
Turn adjusting screw on bar counterclockwise to move the tensioning rack as far as it will go toward
the front of the bar.
f ..........
o
,_
Tensioning Rack
5,
6.
7.
8.
Slide guide bar behind clutch drum
until guide bar stops against clutch
drum sprocket.
Remove the old chain.
Carefully remove new chain from
package. Hold chain with the drive
links as shown.
_d Cutters
Depth Gauge
Place chain over and behind
clutch, fitting the drive links in the
clutch drum sprocket.
9. Fit the bottom of the drive links between the teeth in the sprocket in
the nose of the guide bar.
10. Fit chain drive links into bar
groove.
11. Pull guide bar forward until chain is
snug in the guide bar groove. Ensure all drive links are in the bar
groove.
12. Install the chain brake.
13. Install chain brake nuts; finger
tighten only. Do not tighten any further at this point. Proceed to
CHAIN ADJUSTMENT.
CHAIN ADJUSTMENT
See CHAIN TENSION in MAINTENANCE
section.
17
CARBURETOR
ADJUSTMENT
'_WARNING:
at initial settings is acceptable, no
further adjustments are necessary.
If engine does not start, refer to the
TROUBLESHOOTING TABLE. If still
unable to remedy situation, call
1-800-235-5878.
The chain will be
moving during most of this procedure.
Wear your protective equipment and
observe all safety precautions. During
the low speed mixture adjustment recheck idle speed after each turn of the
screw. The chain must not move at idle
speed.
Carburetor adjustment is critical and if
done improperly can permanently
damage the engine as well as the carburetor. If you require further assistance or are unsure about performing
this procedure, call our customer assistance help line at 1-800-235-5878.
Old fuel, a dirty air filter, dirty fuel filter,
or flooding may give the impression of
an improperly adjusted carburetor.
Check these conditions before adjusting the carburetor.
The carburetor has been carefully set
at the factory. Adjustments may be
necessary if you notice any of the following conditions:
• Chain moves at idle. See IDLE
SPEED-T under adjusting procedure.
• Saw will not idle. See IDLE SPEED-T
and LOW SPEED MIXTURE-L under
adjusting procedure.
• Engine dies or hesitates when it
should accelerate. See ACCELERATION CHECK under adjusting
procedure.
• Loss of cutting power. See HIGH
SPEED MIXTURE - H under adjusting
procedure.
There are three adjustment screws on
the carburetor. They are labeled H, L,
and T. They are located in the area just
above the primer bulb.
ADJUSTING
PROCEDURE
CAUTION:
Do not force plastic limiter
caps on screws beyond the built-in
stops or damage will occur.
Initial Settings
1. Turn both mixture screws (L and H)
counterclockwise
until they stop.
2. Turn the idle speed screw (T)
clockwise until it stops. Then turn it
counterclockwise
4 and 1/2 turns.
3. Start engine and let it run for 3 minutes, then proceed to adjust
screws according to the instructions below. If engine performance
Idle Speed-T
Allow engine to idle. If the chain
moves, idle is too fast. If the engine
stalls, idle is too slow. Adjust speed
until engine runs without chain movement (idle too fast) or stalling (idle too
slow).
• Turn idle screw (T) clockwise to increase engine speed.
• Turn idle screw (T) counterclockwise
to decrease engine speed.
Low Speed Mixture-L
Allow engine to idle. Then accelerate
the engine and note performance. If
engine hesitates, bogs down, or
smokes during acceleration, turn low
speed mixture screw (L) clockwise in
1/16-turn increments until performance
is satisfactory. Repeat this procedure
as necessary for proper adjustment.
After completing adjustments, check
for acceleration and chain movement
at idle. Reset if necessary.
High Speed Mixture-H
DO NOT operate engine at full throttle
for prolonged periods while making adjustments. Damage to the engine can
occur. Make a test cut. Based on performance of the saw while cutting, adjust the high speed mixture setting in
1/16-turn increments as follows:
• Turn the high speed mixture screw (H)
clockwise until saw has good power in
the cut with no hesitation. Do not adjust by sound or speed, but judge by
how well the saw performs in the cut.
• Turn the high speed mixture screw
(H) counterclockwise
if the saw has
speed, but dies in the cut or lacks
power in the cut.
After completing adjustments, check
for acceleration and chain movement
at idle. Reset if necessary.
Acceleration
Check
If the engine dies or hesitates instead of
accelerating, turn the low speed mixture
screw (L) counterclockwise until you
have smooth acceleration with no chain
movement at idle.
18
,_ WARNING:
Perform the following
steps after each use:
• Allow the engine to cool, and secure
the unit before storing or transporting.
• Store chain saw and fuel in a well
ventilated area where fuel vapors
cannot reach sparks or open flames
from water heaters, electric motors or
switches, furnaces, etc.
• Store chain saw with all guards in
place and position chain saw so that
any sharp object cannot accidentally
cause injury.
• Store chain saw well out of the reach
of children.
SEASONAL STORAGE
Prepare your unit for storage at the
end of the season or if it will not be
used for 30 days or more.
If your chain saw is to be stored for a
period of time:
• Clean saw thoroughly before storage.
• Store in a clean dry area.
• Lightly oil external metal surfaces
and guide bar.
• Oil the chain and wrap it in heavy paper or cloth.
FUEL SYSTEM
Under Fueling Engine in the Operating
Section of this manual, see message
labeled IMPORTANT regarding the
use of gasohol in your chain saw.
Fuel stabilizer is an acceptable alternative in minimizing the formation of
fuel gum deposits during storage. Add
stabilizer to the gasoline in the fuel
tank or fuel storage container. Follow
the mix instructions found on stabilizer
containers. Run engine at least 5 minutes after adding stabilizer.
Craftsman 40:1,2-cycle
engine oil (air
cooled) is especially blended with fuel
stabilizer. If you do not use this Sears
oil, you can add a fuel stabilizer to your
fuel tank.
ENGINE
• Remove spark plug and pour 1 teaspoon of 40:1,2-cycle
engine oil (air
cooled) through the spark plug opening. Slowly pull the starter rope 8 to
10 times to distribute oil.
• Replace spark plug with new one of
recommended type and heat range.
• Clean air filter.
• Check entire unit for loose screws,
nuts, and bolts. Replace any damaged, broken, or worn parts.
• At the beginning of the next season,
use only fresh fuel having the proper
gasoline to oil ratio.
OTHER
• Do not store gasoline from one season to another.
• Replace your gasoline can if it starts
to rust.
19
TROUBLESHOOTING
TABLE
WARNING:
Always
stopunitanddisconnect
spark
plugbefore
performingalloftherecommended
remedies
below
except
remedies
thatrequire
operation
TROUBLE
Engine will not
start or will run
only a few
seconds after
starting.
Engine will
not idle
properly.
Engine will not
accelerate,
lacks power,
or dies under
a load.
Engine
smokes
of the
unit.
REMEDY
CAUSE
1. ON/STOP switch
STOP position.
2. Engine flooded.
1. Move ON/STOP switch to ON.
in
6. Carburetor requires
adjustment.
7. None of the above.
See "Difficult Starting" in the
Operation Section.
3. Fill tank with correct
fuel mixture.
4. Install new spark plug.
5. Check for dirty fuel filter; replace.
Check for kinked or split fuel line;
repair or replace.
6. See "Carburetor
Adjustment"
in the
Service and Adjustments
Section.
7. Contact Sears Service.
1. Idle speed set too high
or too low.
2. Low Speed Mixture
requires adjustment.
3. Crankshaft seals worn.
4. Compression
low.
5. None of the above.
1. See "Carburetor Adjustment"
in the
Service and Adjustments
Section.
2. See "Carburetor Adjustment"
in the
Service and Adjustments
Section.
3. Contact Sears Service.
4. Contact Sears Service.
5. Contact Sears Service.
1. Air filter dirty.
2. Spark plug fouled.
1. Clean or replace air filter.
2. Clean or replace plug
and regap.
3. See "Carburetor Adjustment"
in the
Service and Adjustments Section.
4. Contact Sears Service.
3. Fuel tank empty.
4. Spark plug not firing.
5. Fuel not reaching
carburetor.
3. Carburetor requires
adjustment.
4. Exhaust ports or muffler outlets plugged.
5. Compression
low.
6. Chain brake engaged.
7. None of the above.
5. Contact Sears Service.
6. Disengage chain brake.
7. Contact Sears Service.
1. Adjust choke.
2. Empty fuel tank and refill with
correct fuel mixture.
3. Clean or replace air filter.
4. See "Carburetor Adjustment"
in the
Service and Adjustments Section.
5. Contact Sears Service.
1. Choke partially on.
2. Fuel mixture incorrect.
excessively.
3. Air filter dirty.
4. High Speed Mixture
requires adjustment.
5. Crankcase leak.
Engine runs
hot.
1. Fuel mixture
incorrect.
1. See "Fueling Engine" in the Operation
section.
2. Replace with correct
plug.
3. See "Carburetor Adjustment"
in the
Service and Adjustments Section.
4. Contact Sears Service.
2. Spark plug incorrect.
3. High Speed Mixture
set too lean.
4. Exhaust ports or muffler outlets plugged.
5. Carbon build-up on
spark arresting screen.
6. Starter housing dirty
7. None of the above.
5. Clean spark arresting
screen.
6. Clean starter housing area.
7. Contact Sears Service.
2O
TROUBLESHOOTING
TROUBLE
- Continued
CAUSE
Oil inadequate
for bar and
chain
lubrication.
Chain moves
idle speed.
TABLE
at
Chain does not
move when engine is accelerated.
Chain clatters
or cuts roughly.
REMEDY
1. Oil tank empty.
2. Oil pump or oil filter
clogged.
3. Guide bar oil hole
blocked.
1. Fill oil tank.
2. Contact Sears Service.
1. Idle speed requires
adjustment.
2. Clutch requires repair.
1. See "Carburetor Adjustment" in the
Service and Adjustments
Section.
2. Contact Sears Service.
Chain cuts at
an angle.
bar and clean.
1. Chain tension too
tight.
2. Carburetor requires
adjustment.
3. Guide bar rails
pinched.
4. Clutch slipping.
5. Chain brake engaged.
1. See "Check Chain Tension" in the
Maintenance Section.
2. See "Carburetor Adjustment"
in the
Service and Adjustments Section.
3. Repair or replace.
1. Chain tension
1. See "Check Chain Tension" in the
Maintenance Section.
2. Contact Sears Service.
3. Resharpen or replace chain.
4. See "Chain Sharpening"
in the
Service and Adjustments
Section.
incorrect.
2. Cutters damaged.
3. Chain worn.
4. Cutters dull, improperly
sharpened, or depth
gauges too high.
5. Sprocket worn.
6. Chain installed
backwards.
Chain stops
within the cut.
3. Remove
4. Contact Sears Service.
5. Disengage chain brake.
5. Contact Sears Service.
6. Install chain in right direction.
1. Chain cutter tops not
filed flat.
2. Guide bar burred or
bent; rails uneven.
3. Clutch slipping.
1. See "Chain Sharpening"
in the
Service and Adjustments Section.
2. Repair or replace guide bar.
1. Cutters damaged on
one side.
2. Chain dull on one side.
1. See "Chain Sharpening"
in the
Service and Adjustments Section.
2. See "Chain Sharpening"
in the
Service and Adjustments Section.
3. Guide bar bent or worn.
3. Replace guide bar.
3. Contact
Sears Service.
If situations occur which are not covered in this manual, use care and good
judgement. If you need assistance, contact Sears Service or the CUSTOMER
ASSISTANCE HELPLINE at 1-800-235-5878.
YOUR WARRANTY RIGHTS AND
OBLIGATIONS:
The U. S. Environmental Protection Agency and Sears,
Roebuck and Co., U.S.A., are pleased
to explain the emissions control system warranty on your lawn and garden
equipment engine. All new utility and
lawn and garden equipment engines
must be designed, built, and equipped
to meet the stringent anti-smog standards. Sears must warrant the emission control system on your lawn and
garden equipment engine for the peri-
ods of time listed below provided there
has been no abuse, neglect, or improper maintenance of your lawn and
garden equipment engine. Your emission control system includes parts
such as the carburetor and the ignition
system. Where a warrantable condition
exits, Sears will repair your lawn and
garden equipment engine at no cost to
you. Expenses covered under warranty include diagnosis, parts and labor.
MANUFACTURER'S
WARRANTY
COVERAGE:
If any emissions related
21
partonyourengine
(aslisted
under 1-800-469-4663. WARRANTY PEEmissions
Control
Warranty
Parts
List) RIOD: Any warranted part which is not
isdefective
oradefect
inthematerialsscheduled for replacement as required
orworkmanship
oftheengine
causes maintenance, or which is scheduled
thefailure
ofsuchanemission
related only for regular inspection to the effect
part,
thepartwillberepaired
orreof "repair or replace as necessary"
placed
bySears.
OWNER'S
WAR- shall be warranted for 2 years. Any
RANTY
RESPONSIBILITIES:
Asthe warranted part which is scheduled for
lawnandgarden
equipment
engine replacement as required maintenance
owner,
youareresponsible
fortheper- shall be warranted for the period of
formance
oftherequired
maintenancetime up to the first scheduled replacelisted
inyourinstruction
manual.
Sears ment point for that part. DIAGNOSIS:
recommends
thatyouretain
allreThe owner shall not be charged for
ceipts
covering
maintenance
onyour diagnostic labor which leads to the delawnandgarden
equipment
engine, termination that a warranted part is debutSears
cannot
deny
warranty
solely fective if the diagnostic work is perforthelackofreceipts
orforyourfail- formed at an approved Sears servicing
uretoensure
theperformance
ofall
center. CONSEQUENTIAL
DAMscheduled
maintenance.
Asthelawn AGES: Sears may be liable for damandgarden
equipment
engine
owner, ages to other engine components
youshould
beaware
thatSears
may caused by the failure of a warranted
denyyouwarranty
coverage
ifyour
part still under warranty. WHAT IS
lawnandgarden
equipment
engine
or NOT COVERED: All failures caused
apartofithasfailed
duetoabuse,
ne- by abuse, neglect, or improper mainteglect,
improper
maintenance,
unap- nance are not covered. ADD-ON OR
MODIFIED PARTS: The use of add-on
proved
modifications,
ortheuseof
parts
notmade
orapproved
bythe
or modified parts can be grounds for disoriginal
equipment
manufacturer.
You allowing a warranty claim. Sears is not
liable to cover failures of warranted
areresponsible
forpresenting
your
lawnandgarden
equipment
engine
to parts caused by the use of add-on or
aSears
authorized
repair
center
as
modified parts. HOW TO FILE A
soonasaproblem
exists.
Warranty CLAIM: If you have any questions rerepairs
should
becompleted
inarea- garding your warranty rights and resonable
amount
oftime,nottoexceed sponsibilities, you should contact your
30days.Ifyouhaveanyquestions nearest authorized service center or
regarding
yourwarranty
rights
andre- call Sears at 1-800-469-4663. WHERE
sponsibilities,
youshould
contact
your TO GET WARRANTY SERVICE: Warnearest
authorized
service
center
or
ranty services or repairs shall be procallSears
at1-800-469-4663
WAR- vided at all Sears service centers, call:
RANTY COMMENCEMENT
DATE:
The warranty period begins on the
date the lawn and garden equipment
engine is purchased.
LENGTH OF
COVERAGE: This warranty shall be
for a period of two years from the initial
date of purchase. WHAT IS COVERED: REPAIR OR REPLACEMENT
OF PARTS. Repair or replacement of
any warranted part will be performed at
no charge to the owner at an approved
Sears servicing center. If you have any
questions regarding your warranty
rights and responsibilities,
you should
contact your nearest authorized service center or call Sears at
1-800-469-4663.
MAINTENANCE,
REPLACEMENT AND REPAIR OF EMISSION RELATED PARTS: Any Sears
approved replacement part used in the
performance of any warranty maintenance or repair on emission related
parts will be provided without charge to
the owner if the part is under warranty.
EMISSION CONTROL WARRANTY
PARTS LIST: Carburetor, Ignition System: Spark Plug (covered up to maintenance schedule), Ignition Module.
MAINTENANCE
STATEMENT: The
owner is responsible for the performance of all required maintenance as
defined in the instruction manual.
22