MTD 41BD396C799 Owner’s Manual

Operator's Manual
M
2-Cycle
WEEDWACKER_
GAS TRIMMER/BRUSHCUTTER
Model No. 316.795861
l
* SAFETY * ASSEMBLY * OPERATION * MAINTENANCE
* PARTS LIST * ESPANOL, R 13
CAUTION: Before
using this product, read this manual
and follow all safety
rules and operating instructions.
Sears Brands Management Corporation, Hoffman Estates, iL 60179 U.S.A.
Visit our website: www.craftsrnan.corn
769-06143 P00 06/10
CALiFORNiA PROPOSiTiON 65 WARNING
THE ENGINE EXHAUST FROM THIS PRODUCT CONTAINS CHEMICALS
KNOWN TO THE STATE OF CALiFORNiA TO CAUSE CANCER, BIRTH
DEFECTS OR OTHER REPRODUCTIVE HARM.
TABLE OF CONTENTS
Safety Rules ................................................. 2
Warranty .................................................... 4
Know Your Unit ............................................... 5
Assembly Instructions .......................................... 5
Oil and Fuel Information ........................................ 7
Starting/Stopping Instructions ................................... 7
Operating Instructions ......................................... 8
Maintenance and Repair Instructions .............................. 9
Cleaning and Storage ......................................... 10
Troubleshooting Chart ........................................ 11
Specifications ............................................... 12
Parts List ................................................... 29
Service Numbers ..................................... Back Cover
SPARK ARRESTOR NOTE NOTE: For users on U.S. Forest Land and in the states of California, Maine,
Oregon and Washington. All U.S. Forest Land and the state of California (Public Resources Codes 4442 and 4443), Oregon and Washington require, by
law that certain internal combustion engines operated on forest brush and/or grass-covered areas be equipped with a spark arrestor, maintained ineffective
working order, or the engine be constructed, equipped and maintained for the prevention of fire. Check with your state or local authorities for regulations
pertaining to these requirements. Failure to follow these requirements could subject you to liability or a fine. This unit is factory equipped with a spark
arrestor. If it requires replacement, ask your LOCAL SERVICE DEALER to install the Accessory Part #753=06182 Muffler Assembly
The purpose of safety symbols is to attract your attention to possible I dangers. The safety symbols, and their explanations, deserve your careful attention and understanding. The safety warnings do not by themselves
eliminate any danger. The instructions or warnings they give are not_ substitutes for proper accident prevention measures. J
SYMBOL MEANING
Attention is required in order to avoid serious personal injury. May
SAFETY ALERT: Indicates danger, warning or caution.
be used in conjunction with other symbols or pictographs.
NOTE: Advises of information or instructions vital to the operation or
_ DANGER: Failure to obey a safety warning will result in serious
NOTE= This Unit Can Use a Plug-In Power Start or Power Bit Start
Read the Operator's Manual and follow all warnings and safety instructions. Failure to do so can result in serious injury to the operator
and/or bystanders. FOR QUESTIONS, CALL 1=800=4=MY=HOME®
maintenance of the equipment.
injury to yourself or to others. Always follow the safety precautions
to reduce the risk of fire, electric shock and personal injury.
to yourself and others. Always follow the safety precautions to
WARNING: Failure to obey a safety warning can result in injury
reduce the risk of fire, electric shock and personal injury.
property damage or personal injury to yourself or to others.
CAUTION: Failure to obey a safety warning may result in
Always follow the safety precautions to reduce the risk of fire, electric shock and personal injury.
Optional Accessory!
Please refer to the Plug-In Power Start or Power Bit Start
operator's manual for proper use of these features. (Items Sold Separately! Please refer to page 10 of this manual for more
information about purchasing these accessories.)
All information, illustrations, and specifications in this manual are based on the latest product information available at the time of printing. We reserve the right
to make changes at any time without notice.
,, IMPORTANT SAFETY INSTRUCTIONS ,,
READ ALL INSTRUCTIONS BEFORE OPERATING SAFETY WARNINGS FOR GAS UNITS
WARNING: When using the unit, all safety rules must be
followed. Please read these instructions before operating the unit
in order to ensure the safety of the operator and any bystanders. Please keep these instructions for later use.
Read the instructions carefully. Be familiar with the controls and proper use of the unit.
Do not operate this unit when tired, ill, or under the influence of alcohol, drugs, or medication.
Children and teens under the age of 15 must not use the unit, except for
teens guided by an adult. All guards and safety attachments must be installed properly before
operating the unit. Inspect the unit before use. Replace damaged parts. Check for fuel leaks.
Make sure all fasteners are in place and secure. Replace parts that are cracked, chipped, or damaged in any way. Do not operate the unit with
loose or damaged parts. Carefully inspect the area before starting the unit. Remove all debris and
hard or sharp objects such as glass, wire, etc. Be aware of the risk of injury to the head, hands and feet.
Clear the area of children, bystanders, and pets. At a minimum, keep all children, bystanders, and pets outside a 50 feet (15 m) radius; there still may
be a risk to bystanders from thrown objects. Bystanders should be encouraged to wear eye protection. If approached, stop the unit immediately.
Use only Hassle-Free TM XTRA QUIET Spiral Line. Never use metal-reinforced line, wire or rope. These can break off and become dangerous projectiles.
Squeeze the throttle control and check that it returns automatically to the idle position. Make all adjustments or repairs before using unit.
_lk I WARNING: Gasoline is highly flammable and its vapors can i
exp ode f gn ted. Take the fo ow ng precaut ons: |
Store fuel only in containers specifically designed and approved for the storage of such materials.
Always stop the engine and allow it to cool before filling the fuel tank.
Never remove the fuel tank cap or add fuel when the engine is hot.
Always loosen the fuel tank cap slowly to relieve any pressure in the tank
before fueling. Do not smoke.
Always mix and add fuel in a clean, well-ventilated outdoor area where there are no sparks or flames. Do not smoke.
Never operate the unit without the fuel cap securely in place.
Avoid creating a source of ignition for spilled fuel. Wipe up any spilled fuel from the unit immediately before starting the engine. Move the unit at
least 30 feet (9.1 m) from the fueling source and site before starting the
engine. Do not smoke.
Never start or run the unit inside a closed room or building. Breathing exhaust
fumes can kill. Only operate this unit in a well-ventilated outdoor area.
WHILE OPERATING
Never start or run the unit inside a closed room or building. Breathing exhaust
fumes can kill. Operate this unit only in a well ventilated outdoor area. Wear safety glasses or goggles that are marked as meeting ANSI Z87.1 -
1989 standards. Also wear ear/hearing protection when operating this unit. Wear a face or dust mask if the operation is dusty. Long sleeve shirts
are recommended. Wear heavy, long pants, boots and gloves. Do not wear loose clothing,
jewelry, short pants, sandals or go barefoot. Secure hair above shoulder level. The cutting head shield must always be in place while operating the unit. Do
not operate unit without both trimming lines extended, and the proper line installed. Do not extend the trimming line beyond the length of the shield.
J
Thecuttingattachmentmayspinduringidlespeedadjustments.Wear protectiveclothingandobserveallsafetyinstructionstopreventserious
personalinjury.
AdjustthepositionoftheD-handletoprovidethebestgrip.
Besurethecuttingheadisnotincontactwithanythingbeforestartingtheunit. Usetheunitonlyindaylightorgoodartificiallight.
Avoidaccidentalstarting.Beinthestartingpositionwheneverpullingthe
starterrope.Theoperatorandunitmustbeinastablepositionwhile starting.SeeStarting/Stopping Instructions.
Use the right tool. Only use this tool for the purpose intended. Do not overreach. Always keep proper footing and balance.
Always hold the unit with both hands when operating. Keep a firm grip on
both the front and rear handle or grips. Keep hands, face, and feet at a distance from all moving parts. Do not
touch or try to stop the cutting head when it is rotating. Do not touch the engine or muffler. These parts get extremely hot from
operation. They remain hot for a short time after turning off the unit. Do not operate the engine faster than the speed needed to cut, trim or
edge. Do not run the engine at high speed when not cutting.
This unit has an overspeed protection switch to keep the unit from
overheating. When the unit is run at full throttle while not in use for extended lengths of time the overspeed protection switch will engage.
Always stop the engine when cutting is delayed or when walking from one
cutting location to another. If the unit is struck or becomes entangled with a foreign object, stop the
engine immediately and check for damage. Do not operate before repairing damage. Do not operate the unit with loose or damaged parts.
Stop and switch the engine to off for maintenance, repair, or for changing the cutting head or other attachments.
Use only replacement parts and accessories listed in the Parts List section of this operator's manual and distributed by a Craftsman outlet or service center. Use of any replacement parts or accessories purchased
elsewhere may be hazardous and will also void the warranty. Keep unit clean of vegetation and other materials. They may become
lodged between the cutting head and shield.
To reduce fire hazard, keep the engine and muffler free from grass, leaves,
excessive grease or carbon build up.
WHILE OPERATING WITH CUTTING BLADE
Read and understand all safety warnings before operating this unit.
Always use the shoulder harness when using the brush blade accessory.
Keep the D-handle between the operator and cutting attachment or blade at all times.
NEVER cut when the cutting blade is 30 inches (76 cm) or more above the ground level.
Blade thrust may occur when the spinning blade contacts an object that it does not immediately cut. Blade thrust can be violent enough to propel
the unit and/or operator in any direction, possibly causing a loss of control. Blade thrust can occur without warning ifthe blade snags, stalls
or binds. This is more likely to occur in areas where it is difficult to see the material being cut.
For operation with the brush blade, do not cut anything thicker than 1/2 inch or a violent kickback could occur.
Do not attempt to touch or stop the blade when it is rotating.
A coasting blade can cause injury while it continues to spin after the
engine is stopped or the throttle trigger is released. Maintain proper control until the blade has completely stopped rotating.
Do not run the unit at high speed when not cutting. If you strike or become entangled with a foreign object, stop the engine
immediately and check for damage. Have any damage repaired before attempting further operations. Do not operate unit with a bent, cracked or
dull blade. Discard blades that are bent, warped, cracked or broken. Do not sharpen the cutting blade. Sharpening the blade can cause the
blade tip to break off while in use. This can result in severe personal injury. Replace the blade.
Do not use the cutting blade for edging or as an edger; severe personal injury to yourself or others may incur. Use the cutting blade only for the
purpose described in this manual. Stop the engine IMMEDIATELY if you feel excessive vibration. Vibration is
a sign of trouble. Inspect thoroughly for loose nuts, bolts or damage before continuing. Repair or replace affected parts as necessary.
AFTER USE
Clean cutting blades with a household cleaner to remove any gum buildup. Oil the blade with machine oil to prevent rust.
Lock up and store the cutting blade in an appropriate area to protect the
blade from unauthorized use or damage.
OTHER SAFETY WARNINGS
Never store the unit, with fuel in the tank, inside a building where fumes may reach an open flame or spark.
Allow the engine to cool before storing or transporting. Be sure to secure the unit while transporting.
Store the unit in a dry area, locked up or up high to prevent unauthorized use or damage, out of the reach of children.
Never douse or squirt the unit with water or any other liquid. Keep handles
dry, clean and free from debris. Clean after each use. See the Cleaning and Storage instructions.
Keep these instructions. Refer to them often and use them to instruct other
users. If loaning someone this unit, also loan them these instructions.
SAVE THESE INSTRUCTIONS
3
=SAFETY & iNTERNATiONAL SYMBOLS =
This operator's manual describes safety and international symbols and pictographs that may appear on this product. Readthe operator's manual for
complete safety, assembly, operating and maintenance and repair information.
SYMBOL MEANING
_diiii
_tj_
SYMBOL MEANING
|_STANE
4|NG,K
SRFAC_
CRAFTSMAN 2 YEAR FULL WARRANTY
FOR 2 YEARS from the date of purchase, this product is warranted against any defects in material or workmanship. Defective product will receive free repair or free replacement if repair is unavailable.
For warranty coverage details to obtain repair or replacement, visit the web site: www.craftsman.com This warranty covers ONLY defects in material and workmanship. Warranty coverage does NOT include:
Expendable items that can wear out from normal use within the warranty period, such as cutting line, filters or spark plugs.
Product damage resulting from user attempts at product modification or repair or caused by product accessories.
Repairs necessary because of accident or failure to operate or maintain the product according to all supplied instructions.
Preventive maintenance, or repairs necessary due to improper fuel mixture, contaminated or stale fuel.
This warranty is void if this product is ever used while providing commercial services or if rented to another person. This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state.
Sears Brands Management Corporation, Hoffman Estates, IL 60179
APPLICATIONS Asatrimmer:
Cuttinggrassandlightweeds Edging
Decorativetrimmingaroundtrees,fences,etc.
Asabrushcutter:
Cuttingweedsandlightbrushofupto1/2inchindiameter
Otheroptionalaccessoriesmaybeusedwiththisunit.
C°nvertibleTM Throttle
Muffler
\
Shaft Grip Grip
On/Oft
Control Air Fiffer
D-Handle _ Cover
ShouNder
Strap Clip
CoupNer _ Control
Spark Plug
Starter Rope
Fuel Cap
Shaft Housing
Brush Blade
Blade Shield /
Shield Mount
HassNe Free ®
Cutting Head
Line Cutting Blade
INSTALL AND ADJUST THE D=HANDLE
1. Remove the screws and bottom clamp piece that were
installed on the D-handle for shipping.
2. Place the D-handle over the shaft housing and onto the
bottom clamp (Fig. 1). Place it a minimum of 6 inches
(15.24 cm) from the end of the shaft grip.
3. Start the screws with a large Flat-head or T-25 Torx
screwdriver. Do not tighten until making the handle adjustment.
4.
If it was pre-installed, loosen the screws on the D-handle just enough to move it.
5.
While holding the unit in the operating position (Fig. 17), move the D-handle to the location that provides the best grip.
6.
Tighten the clamp screws evenly until the D-handle is secure.
NOTE:
OPERATING THE CONVERTIBLE TM COUPLER SYSTEM
Make sure the barrier bar will point toward the operator's body when the unit is held in the operating position.
Screw (4}
Minimum 6 in.
(15.24 cm)
Barrier Bar
/
Bottom
Clamp
Fig. 1
WARNING: Before using any attachment, read and understand
the manual that came with the attachment. Follow all safety I
nformat on conta ned w th n. j
The Convertible TM coupler system enables the use of these optional attachments.
Edger Cultivator
Turbo Blower
Brushcutter
Barrier Bar
Primer Bulb
Head Shield
Pole Saw
Hedge Trimmer INSTALLING THE TRIMMER ATTACHMENT OR OTHER ATTACHMENT
_[_ ARNING: To avoid serious personal injury and damage to the
_L_J AUTION: Before operating the unit, be sure that the release
NOTE: To make installing or Primary Hole
1.
2.
NOTE: Aligning the release
3. Turn the knob clockwise to
For decorative edging with the line head trimmer attachment or other
attachment, lock the release
button of the attachment into the
90° hole (Fig. 3).
unit, shut the unit off before removing or installing attachments.
button is fully snapped into the primary hole, and that the knob is securely tightened.
easier, place the unit on removing the attachmentj_.__.X, _, _----_¢-'-Y_
the ground or on a work bench.
to loosen (Fig. 3). Turn knob counterclockwise _i__,_.. _
While firmly holding the attachment, push it straight Upper Shaft
into the Convertible TM Housing Lower Shaft
coupler until the release
button snaps firmly into the primary hole (Fig. 2).
button with the guide recess will help
installation (Fig. 4).
tighten (Fig. 3).
90°Edging Hole
ly)
\
Housing
Fig. 2
Knob
Fig. 3
5
REMOVING THE TRIMMER ConvertibleTM Release Button ATTACHMENT OR OTHER CoupNer
ATTACHMENT , ,_ _/-r\"
1. Turn the knob I "qk _._ counterclockwise to loosen
(Fig. 3).
2. Press and hold the release button (Fig. 4).
3. While firmly holding the upper shaft housing, pull the Guide Recess
attachment straight out of Fig. 4 the Convertible TM coupler
(Fig. 2).
REMOVING THE CUTTING BLADE
Pilot Step
Fig. 8
L_ WARNING: To avoid serious personal injury, always wear 1
I_lklWARNING:Donotsharpenthecuttingblade. Sharpeningthe !
1. Align the shaft bushing hole
2.
3.
4. Remove the nut, blade retainer and blade. Store the nut and blade
INSTALLING THE CUTTING BLADE
1. Place the cutting blade on the output shaft bushing (Fig. 6).
2. Make sure that the cutting blade is centered on the pilot step and
L_ ARNING: If the cutting blade is off-center, the unit will vibrate
3. Align the shaft bushing hole
4. Put the blade retainer and
5. Tighten nut counterclockwise
6. Remove the locking rod from the locking rod slot.
gloves while handling or installing the blade.
blade can cause the blade tip to break off while in use. This can result in severe personal injury. Replace the blade.
with the locking rod slot and insert the locking rod into the Clockwise
bushing hole (Fig. 7). Hold the locking rod in place
by grasping it next to the boom of the unit (Fig. 5).
While holding the locking rod, loosen the nut on the
blade by turning it clockwise with a 5/8 inch closed-end or
socket wrench (Fig. 5). Fig. 5
together for future use in a secure place. Store out of children's reach.
sitting flat against the output shaft bushing (Fig. 8).
and the blade may fly off, causing possible serious personal injury.|
with the locking rod slot and insert the locking
rod into the bushing hole (Fig. 7).
nut on the output shaft. Make sure that the blade is
installed correctly.
against the blade while holding the locking rod:
If using a torque wrench and an 5/8 inch socket tighten to:
325 - 335 inolb, 27 - 28 ft.olb, 37 =38 Norn.
Without a torque wrench, use a 5/8 inch closed-end or
socket wrench, turning the nut until the blade retainer is
snug against the shaft bushing. Make sure that the
blade is installed correctly, then rotate the nut an
additional 1/4 to 1/2 turn counterclockwise (Fig. 9).
Shaft Output Shaft
Bushing Hole J
:°°Soc
Fig. 6
Fig. 7
1/4-1/2 turn
Countercmockwise
Fig. 9
INSTALL THE HARNESS
-- i_[_ ARNING: Always use the shoulder harness when using the
1. Push the strap through the
2. Pull the strap over the cross
3. Put the harness on over head
4. Adjust length to fit the
J
cutting blade to avoid serious personal injury.
center of the buckle.
bar and down through the slot inthe buckle (Fig. 10).
and onto shoulder. Snap it on to the support fitting (Fig. 11).
operator's size. Pull tab to lengthen, pull strap to
shorten (Fig 12).
Fig. 10
Fig. 11
Fig. 12
Support
Fitting
_ WARNING: To avoid serious personal injury or damage to the j
unit, do not start or operate this unit with the locking rod in the locking rod slot.
OiL AND FUEL MiXiNG iNSTRUCTiONS Old and/or improperly mixed fuel are the main reasons for the unit not
running properly. Be sure to use fresh, clean unleaded fuel. Follow the instructions carefully for the proper fuel/oil mixture.
Definition of Blended Fuels
_[_ WARNING: It has been proven that fuel containing greater than I
Today's fuels are often a blend of gasoline and oxygenates such as ethanol,
methanol, or MTBE (ether). Alcohol-blended fuel absorbs water. As little as 1% water in the fuel can make fuel and oil separate. It forms acids when stored.
When using alcohol-blended fuel, use fresh fuel (less than 30 days old). Using Blended Fuels
If choosing to use a blended fuel, or its use is unavoidable, follow recommended precautions:
Always use the fresh fuel mix explained in the operator's manual
Using Fuel Additives
_ CAUTION: For proper engine operation and maximum I
The bottle of 2-cycle oil that came with the unit contains a fuel additive that
will help inhibit corrosion and minimize the formation of gum deposits.
Always use a good 2-cycle oil designed for air-cooled engines along with a fuel additive, such as STA-BIL® Gas Stabilizer or an equivalent. Add 0.8 oz.
(23 ml) of fuel additive per gallon of fuel according to the instructions on the container. NEVER add fuel additives directly to the unit's fuel tank.
Thoroughly mix the proper ratio of
2-cycle engine oil with unleaded gasoline in a separate fuel can. Use
a 40:1 fuel/oil ratio. Do not mix
them directly in the engine fuel tank.
See the table below for specific gas and oil mixing ratios.
NOTE: One gallon (3.8 liters) of
NOTE: Dispose of the old fuel/oil
_ WARNING: Gasoline is extremely flammable. Ignited vapors
FUELING THE UNiT
-- i_L_ WARNING: Remove fuel cap slowly to avoid injury from fuel
_ WARNING: Add fuel in a clean, well ventilated outdoor area. Wipe
1. Turn unit on its side, with the fuel cap facing up, and remove the fuel cap.
2. Place the gas container's spout into the fill hole on the fuel tank and fill
NOTE: Do not overfill the tank.
3. Wipe up any gasoline that may have spilled.
4. Reinstall the fuel cap.
5. Move the unit at least 30 ft. (9.1 m) from the fueling source and site
15% ethanol will likely damage this engine and void the warranty, j
Always agitate the fuel mix before fueling the unit Drain the tank and run the engine dry before storing the unit
reliability, pay strict attention to the oil and fuel mixing instructions onthe2-cyceo contaner. Usng mproperymxedfue can | severely damage the engine.
unleaded gasoline mixed with one 3.2 oz. (95 ml)
bottle of 2-cycle oil makes a 40:1 fuel/oil ratio.
mix in accordance to Federal, State and Local regulations.
may explode. Always stop the engine and allow it to cool before filling the fuel tank. Do not smoke while filling the tank. Keep
sparks and open flames at a distance from the area.
spray. Never operate the unit without the fuel cap securely in place.
up any spilled fuel immediately. Avoid creating a source of ignition for I spilt fuel. Do not start the engine until fuel vapors dissipate. ]
the tank.
before starting the engine.
UNLEADED GAS
1GALLON US
(3.8 LITERS)
1 LITER
MiXiNG RATIO - 40:1
2 CYCLE OiL
3.2 FL. OZ.
(e5ml)
25 ml
WARNING: Operate this unit only in a well-ventilated outdoor
area. Carbon monoxide exhaust fumes can be lethal in a confined
area.
WARN_NG: Avoid accidental starting. Make sure to be in the starting position when pulling the starter rope (Fig. 16). To avoid
serious injury, the operator and unit must be in a stable position while starting.
STARTING INSTRUCTIONS off (o)
1. Mix gas with oil. See Oil and "__ Fuel Mixing Instructions. on (I)__
2. Fill the fuel tank with the fuel/oil mixture.
NOTE: There is no need to turn
3. Fully press and release the
]
4. Flip the choke lever clockwise
5. Crouch in the starting position
6. Wait and allow the unit to idle for
7. Squeeze and hold the throttle
NOTE: The unit uses the
IF... Throttle Control
NOTE:
STOPPING INSTRUCTIONS
1. Release the throttle control and allow the engine to cool down by idling.
2. Press and hold the On/Off Control in the OFF (O) position until the
the unit on. The On/Off Control is in the ON ( I ) position at all times
(Fig. 13).
primer bulb 10 times, slowly.
Some amount of fuel should
be visible in the primer bulb and fuel lines (Fig. 14). If fuel can not be seen in the bulb,
press and release the bulb as
many times as it takes until fuel can be seen in it.
until it clicks (Fig. 15).
(Fig. 16). Do not squeeze the throttle. Pull the starter rope
with a controlled motion until the unit starts.
5 - 10 seconds. Ifthe unit stops
running during this time, squeeze the throttle control and pull the
starter rope in a controlled
motion until the unit starts.
control for 30 to 60 seconds to allow the unit to warm up.
INCREDI-PULL TM starting
system, which significantly reduces the effort required to start the engine. The
starter rope must be pulled out far enough to
hear the engine attempt to start. There is no need to
pull the rope briskly-- there is no harsh resistance
when pulling. Be aware that this starting method is
vastly different from (and much easier than) what
you may be used to.
The engine does not start,
go back to step 3.
Ifthe unit is hot and fails
to start within 3 pulls of the starter rope, squeeze the throttle control and pull the starter rope until the unit starts.
engine comes to a complete stop (Fig. 13).
Choke Lever
Fig. 13
Fig.14
Fig. 15
Fig. 16
Throttle
Control
Starting Position
7
HOW TO START THE UNiT USING THE PLUG-IN POWER START OR POWER BiT START ACCESSORY
NOTE= This unit can use a Plug-in Power Start or Power Bit Start
STARTING INSTRUCTIONS
1. Mix gas with oil. See Oil and Fuel Mixing Instructions.
2. Fill the fuel tank with the fuel/oil mixture. NOTE: There is no need to turn the unit on. The On/Off Control is in the
3. Fully press and release the primer bulb 10 times, slowly. Some amount of
4. Flip the choke lever clockwise until it clicks (Fig. 15).
5. Crouch in the starting position (Fig. 16). Do not squeeze the throttle. Place
6. Press and hold the ON (I)button of the Plug-in Power Start or Power Bit Start
7. Wait and allow the unit to idle for 5 - 10 seconds. If the unit stops running
8. Remove the Plug-In Power Start or drill from the unit.
9. Squeeze and hold the throttle control for 30 to 60 seconds to allow the
iF... The engine does not start, go back to step 3. iF... The engine fails to start after a few attempts, squeeze the throttle
STOPPING INSTRUCTIONS
1. Release the throttle control and allow the engine to cool down by idling.
2. Press and hold the On/Off Control in the OFF (O) position until the
HOLDING THE TRIMMER
_,L_ ARNING: Always wear eye, hearing, foot and body protection
Before operating the unit, stand in the operating position (Fig. 17). Check for the following:
The operator is wearing eye
The unit is at waist level
TiPS FOR BEST TRIMMING RESULTS
Keep the cutting head parallel to the ground.
optional accessory!
Please refer to the Plug-In Power Start or Power Bit Start operator's manual for proper use of this feature. (Items Sold Separately! Please
refer to page 10 of this manual about purchasing these accessories.)
ON (I) position at all times (Fig. 13).
fuel should be visible in the primer bulb and fuel lines (Fig. 14). If fuel can not be seen in the bulb, press and release the bulb as many times as it
takes until fuel can be seen in it.
the Plug-In Power Start or Power Bit Start into the back of the unit. Refer to the Operation section of the Plug-In Power Start or Power Bit
Start operator's manual.
equipped drill in intervals no longer than 4 seconds each until the unit starts.
during this time, squeeze the throttle control, then press and hold the ON (I)button of the Plug-in Power Start or Power Bit Start equipped drill in intervals no longer than 4 seconds each until the unit starts.
unit to warm up.
control, then press and hold the Plug-In Power Start or drill ON (I) button in intervals no longer than 4 seconds each until the unit starts.
engine comes to a complete stop (Fig. 13).
to reduce the risk of injury when operating this unit.
protection and proper clothing With a slightly-bent right arm,
the operator's hand is holding the shaft grip
The operator's left arm is straight, the left hand holding the D-handle
The cutting head is parallel to ,_ the ground and easily contacts
the grass without the need to Fig. 17 bend over
Do not force the cutting head. Allow the tip of the line to do the cutting, especially along walls. Cutting with more than the tip will reduce cutting
efficiency and may overload the engine. Cut grass over 8 inches (200 mm) by working from top to bottom in small
increments to avoid premature line wear or engine drag. Cut from right to left whenever possible. Cutting to the left improves the
unit's cutting efficiency. Clippings are thrown away from the operator.
Slowly move the unit into and out of the cutting area at the desired height.
Move either in a forward-backward or side-to-side motion. Cutting shorter
lengths produces the best results. Trim only when grass and weeds are dry.
The life of the cutting line is dependent upon:
Following the trimming techniques
What vegetation is being cut Where vegetation is cut
For example, the line will wear faster when trimming against a foundation
wall as opposed to trimming around a tree. Some line breakage will occur from:
Entanglement with foreign matter
Normal line fatigue Attempting to cut thick, stalky
weeds
Forcing the line into objects such as walls or fence posts
DECORATIVE TRIMMING
Decorative trimming is
accomplished by removing all vegetation around trees, posts,
fences, etc.
Rotate the whole unit so that the cutting head is at a 30 ° angle to the ground
(Fig. 18). USING THE CUTTING BLADE
-- =
_WARNING: Always wear eye, hearing, foot, body protection and I
-- 1
_ ARNING: Do not use the cutting blade for edging or as an
Before operating the unit with the cutting blade, stand in the operating
position (Fig. 19). Refer to Holding the Trimmer. Cutting Blade Operating Tips
To establish a rhythmic cutting procedure:
the shoulder strap to reduce the risk of injury when operating this unit._
edger. Severe personal injury to yourself or others can result.
Plant feet firmly, comfortably apart.
Bring the engine to full throttle
before entering the material to m_
be cut. At full throttle the blade m_
has maximum cutting power and is less likely to bind, stall or
cause blade thrust (which can
result in serious personal injury to the operator or others). Fig. 19
Fig. 18
WARNING: Blade thrust may occur when the spinning blade
contacts an object that it does not immediately cut. Blade thrust can be violent enough to cause the unit and/or operator to be propelled in
any direction, and possibly lose control of the unit. Blade thrust can occur without warning if the blade snags, stalls or binds. This is more
likely to occur in areas where itis difficult to see the material being cut.
Cut while swinging the upper part of your body from left to right. Always release the throttle trigger and allow the engine to return to idle
speed when not cutting. When you are finished, always unsnap the unit from the harness before
taking off the harness.
-- i_ ARNING: The blade continues to spin after the engine is turned
off. The coasting blade can seriously cut you if accidentally touched.
Swing the unit in the opposite direction as the blade spins,
which increases the cutting action.
After the return swing, move forward to the next area to be
cut and plant your feet again. The cutting blade is designed
with a second cutting edge. You can use it by removing the
blade, turning it upside down and reinstalling it.
Fig. 20
To reduce the chance of material wrapping around the blade, follow these steps:
Cut at full throttle. Swing the unit into material to be cut from your left to your right (Fig. 20).
Avoid the material just cut as you make the return swing.
running or blade turning. To avoid serious personal injury, turn off
_ ARNING: Do not clear away any cut material with the engine
MAINTENANCE SCHEDULE
Perform these required maintenance procedures at the frequency stated in the table. These procedures should also be a part of any seasonal tune-up.
NOTE: Some maintenance procedures may require special tools or skills. If
NOTE: Maintenance, replacement, or repair of the emission control devices
FREQUENCY MAINTENANCE REQUIRED SEE Before starting engine Fill fuel tank with fresh fuel p. 7
Every 10 hours Clean and re-oil air filter p. 9 Every 25 hours Check spark plug condition and gap p. 10
LINE REPLACEMENT
for Hassle-Free TM Cutting Head
-- i
Always use Craftsman® Hassle-Free TM XTRA QUIET Spiral Line. Choose the line size best suited for the job at hand. Red colored line is designed for
cutting grass and small weeds. Black colored line is designed for cutting larger weeds and light brush.
NOTE: Before inserting new line
1. Remove the old line and line
2. Clean entire surface of cutting
3. Reinstall line glide plate (Fig.
NOTE: Line glide plate must be
4. Insert both ends of your line
the engine. Allow the blade to stop before removing materials
wrapped around the blade shaft.
maintenance or repairs with unit running. Always service and repair a cool unit. Disconnect the spark plug wire to ensure that
WARNING: To prevent serious injury, never perform
the unit cannot start.
unsure about these procedures take the unit to Craftsman or other qualified service dealer. Call 1-800-4-MY-HOME ®for more information.
and system may be performed by a Craftsman or other qualified service dealer. Call 1-800-4-MY-HOME ®for more information.
rope. These can break off and become dangerous projectiles.
WARNING: Never use metal-reinforced line, wire, chain or
Fig. 21
Positioning
Tunnel
Fig. 22
Line Glide Plate
into the holes in the cutting head,identify the
proper holes. Follow directions as shown on
the line glide plate. Do
Not attempt to remove
the cutting head from the
unit when replacing line.
glide plate from the cutting head.
head. Note positions "A" and "B" on the cutting head.
21). Align arrow with: "A" when using medium (red)
or large (black) line, or "B" when using lines with
diameters smaller than medium (red)line
reinstalled incutting head before inserting new line.
through the proper holes in the side of the cutting head (Fig. 22).
5. Pull the line and make sure the line is against the hub and is
fully extended through the
positioning tunnels (Fig. 23).
6. Correctly installed line will be
the same length on both sides.
NOTE: Do not rest the Hassle-
FreeTM Cutting Head on
the ground while the unit
is running.
AIR FILTER MAINTENANCE
Cleaning the Air Filter
Clean the air filter every 10 hours of operation. It is an important item
to maintain. Failure to maintain the
air filter properly can result in poor performance or can cause
permanent damage to the engine.
1. Open the air filter cover by pressing the lock tab in and
pulling out on the air filter cover (Fig. 24).
2. Remove the air filter (Fig. 24).
3. Wash the filter in detergent and water (Fig. 25). Rinse the filter
thoroughly and allow it to dry.
4. Apply enough clean SAE 30 motor oil to lightly coat the
filter (Fig. 26).
5. Squeeze the filter to spread and remove excess oil (Fig.27).
6. Replace the air filter into the air filter cover (Fig. 24).
NOTE: Operating the unit
7. Close the air filter cover by
CARBURETOR ADJUSTMENT NOTE: Careless adjustments can
without the air filter WILL VOID the warranty.
swinging it to the left and
then pressing it down until the lock tab snaps into place
(Fig. 24).
seriously damage the
unit. Contact a Craftsman
or other qualified service dealer to make carburetor
adjustments.
Call 1-800-4-MY-HOME ®
for more information.
Air Filter Cover
Lock Tab
Fig. 23
\
Fig. 24
<
Fig. 25
Fig. 26
Fig. 27
Line against
the hub
Positioning
Tunnel
Air Filter
9
REPLACING THE SPARK PLUG
Use a Champion RDJ7J or a
replacement part #753-06193 spark plug (or equivalent). Remove
the plug after every 25 hours of operation and check its condition.
1. Stop the engine and allow it to cool. Grasp the plug boot
firmly and pull it from the spark plug.
2. Clean around the spark plug. Remove the spark plug from
the cylinder head by turning a 5/8-inch socket counterclockwise.
m
0.025 in.
(0.635 ram)
PLUG-IN POWER START AND POWER BiT START FEATURES This unit can be started with an optional Plug-In Power Start or Power Bit
Start (items sold separately). If choosing to start the unit using one of these features or have questions, please contact your local Craftsman retailer or
call 1-800-4-MY-HOME® for more information and purchasing. You may also go to www.craftsman.com.
t
Fig. 28
_L_ ARNING: De net sand blast, scrape or clean spark plug
3. Replace a cracked, fouled or dirty spark plug. Set the air gap at 0.025
4. Install a correctly-gapped spark plug in the cylinder head. Tighten by
5. Reattach the plug boot.
TRANSPORTING
Allow the engine to cool before transporting.
Drain fuel from unit.
CLEANING
-- i[_ ARNING: To avoid serious personal injury,always turn the unit off
Use a small brush to clean off the outside of the unit. Do not use strong
detergents. Household cleaners that contain aromatic oils such as pine and lemon, and solvents such as kerosene, can damage plastic housing or handle.
Wipe off any moisture with a soft cloth. STORAGE
LONG TERM STORAGE
If planning on storing the unit for an extended time, use the following storage
procedure:
1. Carefully drain the fuel tank by running the unit dry or remove fuel cap
2. Start the engine and allow it to run until it stalls. This ensures that all
3. Allow the engine to cool. Remove the spark plug and put 1 oz. (30 ml)
NOTE: Remove the spark plug and drain all of the oil from the cylinder before
4. Thoroughly clean the unit and inspect it for any loose or damaged
electrodes. Grit in the engine could damage the cylinder.
in. (0.635 rnrn) using a feeler gauge (Fig. 28).
turning the 5/8-inch socket clockwise until snug. If using a torque wrench, torque to:
110-120 in.olb. (12.3-13.5 Nora}. Do not over-tighten.
Tighten fuel cap before transporting. Secure the unit while transporting.
and allow it to cool before cleaning or maintaining it.
Never store a fueled unit where fumes may reach an open flame or spark. Allow the engine to cool before storing.
Store the unit locked up to prevent unauthorized use or damage. Store the unit in a dry, well-ventilated area.
Store the unit out of the reach of children.
and tip the motor housing over and drain oil/gas fuel into a container with the same 2-cycle fuel mixture. Do not use fuel that has been stored
for more than 30 days.
fuel has been drained from the carburetor.
of any high quality motor oil or 2-cycle oil into the cylinder. Pull the starter rope slowly to distribute the oil. Reinstall the spark plug.
attempting to start the trimmer after storage.
parts. Repair or replace damaged parts and tighten loose screws, nuts or bolts. The unit is ready for storage.
i
Power Start Feature
item No. Description
316.85951 ..................................... Plug-In Power Start
316.85952 ........................................ Power Bit Start
10
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