MTD 41BD336C799 Owner’s Manual

Operator's Manual

2-Cycle

WEEDWACKER® GAS TRIMMER

Model No. 316.791151

UNgtLtEFAIILE S TARTtN_ £ A S E _

o SAFETY

ASSEMBLY

OPERATION

MAINTENANCE PARTS LIST

ESPANOL, R 11

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

769-06146 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 ............................................... 4

Assembly Instructions .......................................... 5

Oil and Fuel Information ........................................ 5

Starting/Stopping Instructions ................................... 6

Operating Instructions ......................................... 6

Maintenance and Repair Instructions .............................. 7

Cleaning and Storage .......................................... 8

Troubleshooting Chart ......................................... 9

Specifications ............................................... 10

Parts List ................................................... 22

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 in effective

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

I _ _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. (Plug-In Power Start included / Power Bit Start sold separately! Please refer to page 8 of

this manual for more information about 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.

A WARNING: Gasoline is highly flammable and its vapors can

I_1 expl°de if ignited" Take the f°ll°wing precauti°ns: i

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.

The cutting attachment may spin during idle speed adjustments. Wear

protective clothing and observe all safety instructions to prevent serious personal injury.

• AdjustthepositionoftheD-handletoprovidethebestgrip. • Stopandswitchtheenginetooffformaintenance,repair,orforchanging 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.

" SAFETY & INTERNATIONAL SYMBOLS "

This operator's manual describes safety and international symbols and pictographs that may appear on this product. Read the operator's manual for complete safety, assembly, operating and maintenance and repair information.

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.

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

SYMBOL MEANINGSYMBOL MEANING

ili_i

PO_

;_it(

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 As a trimmer:

• Cutting grass and light weeds Edging

Muffler

Spark Plug

Decorative trimming around trees, fences, etc.

Other optional accessories may be used with this unit.

On/Off

Control

D-Handle

Shaft Grip

Starter Rope

Grip

-- Cover

Air Filter

Hassle Free ®, Cutting Head

Shaft Housing

Cutting Head Shield

Line Cutting

Blade

Convertible TM

Coupler

Throttle

Control

Fuel Cap

ADJUSTING THE D=HANDLE Shaft Grip Shaft Housing

1. Loosen the bolt on the handle just enough to move it

(Fig. 1).

2. While holding the unit in the operating position (Fig. 9), move the D-handle to the

location that provides the best grip. D-Handle

3. Tighten the bolt until the D- handle is secure (Fig. 1).

OPERATING THE CONVERTIBLE TM COUPLER SYSTEM

_ ARNING: Before using any attachment, read and understand

The Convertible TM coupler system enables the use of these optional attachments.

• Edger

INSTALLING THE TRIMMER ATTACHMENT OR OTHER ATTACHMENT

_ ARNING: To avoid serious personal injury and damage to the I

_ CAUTION = Before o_erating t he u nit , be su re t hat the release _

NOTE: To make installing or Primary Hole

1. Turn knob counterclockwise _,, I_ _

2. While firmly holding the

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). REMOVING THE TRIMMER ATTACHMENT OR OTHER ATTACHMENT

1. Turn the knob counterclockwise to loosen (Fig. 3).

2. Press and hold the release

the manual that came with the attachment. Follow all safety information contained within.

Cultivator

Turbo Blower

Brushcutter Pole Saw

Hedge Trimmer

unit, shut the unit off before removing or installing attachment.

button is fully snapped into the primary hole, and that the knob is

securely tightened.

removing the attachment

the ground or on a work

easier, place the unit on _'_'---_-_ _, _-----_Y--_" bench.

to loosen (Fig. 3).

attachment, push it straight Upper Shaft into the Convertible TM

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).

button (Fig. 4). Convertible TM Release Button While firmly holding the upper

shaft housing, pull the attachment straight out of the

Convertible TM coupler (Fig. 2).

Minimum 6 in.

(15.24cm)

Fig. I

Housing Lower Shaft

Fig. 2

90° Edging Hole

(Trimmer Only)

Fig. 3

Coupler

Fig. 4

Housing

Guide Recess

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

m i_[_ ARNING: It has been proven that fuel containing greater than

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 agitate the fuel mix before fueling the unit

• Drain the tank and run the engine dry before storing the unit

Using Fuel Additives

15% ethanol will likely damage this engine and void the warranty.

Always use the fresh fuel mix explained in the operator's manual

CAUTION: For proper engine operation and maximum

reliability, pay strict attention to the oil and fuel mixing instructions on the 2-cycle oil container. Using improperly mixed fuel can

severely damage the engine.

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 inthe 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

_ 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

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 spilt fuel. Do not start the engine until fuel vapors dissipate.

the tank.

before starting the engine.

UNLEADED GAS

1 GALLON US

(3.8 LITERS)

1 LITER

2 CYCLE OIL

3.2 FL. OZ. 195ml)

25 ml

A I WARNING: Operate this unit only ina well-ventilated outdoor area.

_ Carbon monox de exhaust fumes can be etha n a conf ned area.

I _ I WARNING: Avoid accidental starting. Make sure to be in the i

STARTING iNSTRUCTiONS

1. Mix gas with oil. See Oil and

2. Fill the fuel tank with the

NOTE: There is no need to turn

3. Fully press and release the

7. Squeeze and hold the throttle

NOTE: Theunit uses the lNCREDI-

IF'... The engine does not start, NOTE: If the unit is hot and fails

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

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 position when pulling the starter rope (Fig. 8). To avoid serious injury,the operator and unit must be ina stable position while starting.

off (o) _._

Fuel Mixing Instructions.

fuel/oil mixture.

the unit on. The On/Off

Control is in the ON ( I ) position at all times (Fig. 5).

primer bulb 10 times, slowly. Some amount of fuel should

be visible in the primer bulb and fuel lines (Fig. 6). 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.

Flip the choke lever clockwise until it clicks (Fig. 7).

Crouch in the starting position (Fig. 8). Do not squeeze the

throttle. Pull the starter rope with a controlled motion until

the unit starts. Waitand allow the unit to idle for

5 -10 seconds. If the unit stops running during this time, squeeze Choke Leverj

the throttle control and pullthe starter rope in a controlled

motion until the unit starts.

control for 30 to 60 seconds to allow the unit to warm up.

PULL TM starting system,

which significantly reduces the effort required to start

the engine. The starter rope

must be pulled out far enough to hearthe engine

attempt to start. There is no needto pull the rope briskly-- there isno harsh

resistance when pulling. Be aware that this starting

method is vastly different

from (and much easierthan) what you may be used to.

go back to step 3.

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. 5).

optional accessory! Please refer to the Plug-In Power Start or Power Bit Start operator's

manual for proper use of this feature. (Plug-In Power Start included / Power Bit Start sold separately. Please refer to page 8 of this manual

for more information about these accessories.)

Throttme Control

Fig. 5

Fig. 6

Fig. 7

Fig. 8

Control

/ Bumb

Primer

Starting

Position

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

ON (I) position at all times (Fig. 5).

3. Fully press and release the primer bulb 10 times, slowly. Some amount of fuel should be visible in the primer bulb and fuel lines (Fig. 6). 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.

4. Flip the choke lever clockwise until it clicks (Fig. 7).

5. Crouch in the starting position (Fig. 8). Do not squeeze the throttle. Place 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.

6. 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.

7. Wait and allow the unit to idle for 5 - 10 seconds. If the unit stops running 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.

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 unit to warm up.

IF'... The engine does not start, go back to step 3. IF'... The engine fails to start after a few attempts, squeeze the throttle

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.

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 engine comes to a complete stop (Fig. 5).

HOLDING THE UNIT

m ]_[_ ARNING: Always wear eye, hearing, foot and body protection

Before operating the unit, stand in

the operating position (Fig. 9). Check for the following:

• The operator is wearing eye

• The unit is at waist level

TIPS FOR BEST TRIMMING RESULTS

For example, the line will wear faster when trimming against a foundation

wall as opposed to trimming around a tree.

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 bend over

Keep the cutting head parallel to the ground. 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

Fig. 9

Somelinebreakagewilloccurfrom: . Entanglementwithforeignmatter

* 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. 10).

MAINTENANCE SCHEDULE

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.

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. 5

Every 10 hours Clean and re-oil air filter p. 7 Every 25 hours Check spark plug condition and gap p. 8

LINE REPLACEMENT

for Hassle-Free TM Cutting Head

-- iWARNING: Never use metal-reinforced line, wire, chain or

Always use Craftsman® Hassle-Free TM ×TRA 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

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.

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.

11). 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 in cutting head before inserting new line.

Fig. 10

Fig. 11

Positioning

Tunnel

Fig. 12

Line Glide Plate

t Arrow

Io!

4. Insert both ends of your line through the proper holes in Line against

the side of the cutting head the hub

(Fig. 12).

5. Pull the line and make sure the line is against the hub and is

fully extended through the

positioning tunnels (Fig. 13).

6. Correctly installed line will be the same length on both sides. Positioning

NOTE: Do not rest the Hassle- Tunnel

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. 14).

2. Remove the air filter (Fig. 14).

3. Wash the filter in detergent and water (Fig. 15). Rinse the filter

thoroughly and allow it to dry.

4. Apply enough clean SAE 30

motor oil to lightly coat the

filter (Fig. 16).

5. Squeeze the filter to spread and remove excess oil (Fig. 17).

6. Replace the air filter into the air filter cover (Fig. 14).

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. 14).

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. 13

Fig.14

Fig.15

Fig. 16

Fig. 17

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.

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 (Plug-In Power Start included / Power Bit Start 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.

Fig. 18

_L_ ARNING: Do not 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

-- iL_ 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. 18).

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 itto cool before cleaning or maintaining it.

Never store afueled 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.

Power Start Feature

item No. Description

316.85951 ..................................... Plug-In Power Start

316.85952 ........................................ Power Bit Start

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