MTD 41AD304G799 Owner’s Manual

Operator's Manual

2-Cycle

GAS TRIMMER

Model No. 316.79204.0

INCREDI.PULL TM

UNBELIEVABLE STARTING E A S E

with MAX FIRE,_IGNITION TM

* 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.

FOR ANSWERS TO QUESTIONS ABOUT THiS PRODUCT, CALL 1=800=235=5878

Sears, Roebuck and Co., Hoffman Estates, IL 60179, U.S.A.

Visit our website: www.craftsman.com

P/N 769=06002 P01 4/10

CALiFORNiAPROPOSiTiON 65 WARNING

THE ENGINE EXHAUST FROM THiS PRODUCT CONTAINS CHEMICALS

KNOWN TO THE STATE OF CALiFORNiA TO CAUSE CANCER, BIRTH

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 .......................................... 9

Optional Equipment ........................................... 9

Troubleshooting Chart ........................................ 10

Specifications ............................................... 11

Parts List ................................................... 30

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=05245 Muffler Assembly. 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.

READ ALL iNSTRUCTiONS BEFORE OPERATING

• 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.

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. Ifapproached, stop the unit immediately. Use only Craftsman Hassle-FreeTM XTRA QUIET Spiral Une or 0.095 inch (2.41 mm)

diameter spool line as replacement line. Never use metal-reinforcedline,wireor rope.Thesecan 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.

SAFETY WARNINGS FOR GAS UNITS

-- i

L_ WARNING: Gasoline is highly flammable and its vapors can

Store fuel only in containers specifically designed and approved for the storage of such materials.

Avoid creating a source of ignition for spilled fuel. Do not start the engine until fuel vapors dissipate.

DEFECTS OR OTHER REPRODUCTIVE HARM.

• iMPORTANT SAFETY iNSTRUCTiONS

explode if ignited. Take the following precautions:

The purpose of safety symbols is to attract your attention to possible 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.

SYMBOL MEANING

Attention is required in order to avoid serious personal injury.

SAFETY ALERT: Indicates danger, warning or caution.

May be used in conjunction with other symbols or pictographs.

injury to yourself or to others. Always follow the safety precautions

DANGER: Failureto obey a safety warning will result in serious

to reduce the risk of fire, electric shock and personal injury.

injury to yourself and others. Always follow the safety precautions

WARNING: Failureto obey a safety warning can result in

to reduce the risk of fire, electric shock and personal injury.

_IL CAUTION: Failure to obey a safety warning may result in

NOTE: Advises of information or instructions vital to the operation or

NOTE= This Unit Can Use an Power Start or Power Start Bit Optional

Read the Operator's Manual and follow all warnings and safety instructions. Failurs to do so can result in serious injury to the operator and/or bystanders.

FOR QUESTIONS, CALL 1-800-4-MY-HOME®

Always stop the engine and allow it to cool before filling the fuel tank. Never

remove the cap of the fuel tank, or add fuel, when the engine is hot. Never operate the unit without the fuel cap securely in place. Loosen the fuel tank cap slowly to relieve any pressure in the tank.

Add fuel in a clean, well-ventilated outdoor area where there are no sparks or flames. Slowly remove the fuel cap only after stopping engine. Do not smoke

while fueling. Wipe up any spilled fuel from the unit immediately. Always wipe

unit dry before using.

Move the unit at least 30 feet (9.1 m) from the fueling source and site before starting the engine. Do not smoke or allow sparks and open flames near the

area while adding fuel or operating the unit.

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.

Be aware of the risk of injury to the head, hands and feet. 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 attachment 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. This unit has a clutch. The cutting attachment remains stationary when the

engine is idling. If itdoes not, have the unit adjusted by an authorized service technician.

Adjust the D-handle position that will provide the best grip.

Be sure the cutting attachment is not in contact with anything before starting the unit.

Use the unit only in daylight or good artificial light. Avoid accidental starting. Be inthe starting position whenever pulling the

starter rope. The operator and unit must be in a stable position while starting. See Starting/Stopping Instructions.

property damage or personal injury to yourself or to others.

Always follow the safety precautions to reduce the risk of fire, electric shock and personal injury.

maintenance of the equipment.

Accessory! Please refer to the Power Starter or Power Start Bit operator's manual

for proper use of these features. (Items may be Sold Separately! Please refer to page 9 of this manual for more information about purchasing these accessories.)

• Usetherighttool.Onlyusethistoolforthepurposeintended. Donotoverreach.Alwayskeepproperfootingandbalance.

Alwaysholdtheunitwithbothhandswhenoperating.Keepafirmgriponboth thefrontandrearhandleorgrips.

Keephands,face,andfeetatadistancefromallmovingparts.Donottouch ortrytostopthecuttingattachmentwhenitisrotating.

Donottouchtheengineormuffler.Thesepartsgetextremelyhotfrom operationandwillremainhotforashorttimeafterturningofftheunit.

Donotoperatetheenginefasterthanthespeedneededtocut,trimoredge. Donotruntheengineathighspeedwhennotcutting.

Alwaysstoptheenginewhencuttingisdelayedorwhenwalkingfromone cuttinglocationtoanother.

Ifstrikingorbecomingentangledwithaforeignobject,stoptheengine immediatelyandcheckfordamage.Donotoperatebeforerepairingdamage.

Donotoperatetheunitwithlooseordamagedparts. Stopandswitchtheenginetooffformaintenance,repair,orforchangingthe

cuttingattachmentorotherattachments. Useonlyoriginalequipmentmanufacturerreplacementpartsandaccessories

forthisunit.TheseareavailablefromSearsorotherauthorizedservicedealer.

Keepunitcleanofvegetationandothermaterials.Theymaybecomelodged

betweenthecuttingattachmentandshield. Toreducefirehazard,replacefaultymufflerandsparkarrestor.Keepthe

engineandmufflerfreefromgrass,leavesorotherdebris.

OTHERSAFETYWARNINGS

Neverstoretheunit,withfuelinthetank,insideabuildingwherefumesmay

reachanopenflameorspark. Allowtheenginetocoolbeforestoringortransporting.Besuretosecurethe

unitwhiletransporting. Storetheunitinadryarea,lockeduporuphightopreventunauthorizeduse

ordamage.Keepoutofthereachofchildren.

Neverdouseorsquirttheunitwithwateroranyotherliquid.Keephandlesdry,

cleanandfreefromdebris.Cleanaftereachuse.SeetheCleaningand Storageinstructions.

Keeptheseinstructions.Refertothemoftenandusethemtoinstructother

users.Ifloaningsomeonethisunit,alsoloanthemtheseinstructions.

SAVETHESE iNSTRUCTiONS

Useofanyunauthorizedpartsoraccessoriescouldleadtoseriousinjuryto theuser,ordamagetotheunit,andvoidthewarranty.

= 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.

SYMBOL MEANING

i/i_/ii/_/iii

///////////

_iiiii!li,iiii'_i:_

iiiiiiiiii!iiii_!i:ii_

_i'_iiiiiiN

iiiiiliii_

l!.............

CRAFTSMAN PROFESSIONAL FULL WARRANTY

If this Craftsman Professional product fails due to a defect in material or workmanship within three years from the date of purchase, return it to any Sears store, Parts & Repair Service Center, or other Craftsman outlet in the United States for free repair (or replacement if repair proves impossible).

This warranty applies for only one year if this product is ever used for commercial or rental purposes. This warranty covers ONLY defects in material and workmanship. Sears will NOT pay for:

• Expendable items that can wear out from normal use within the warranty period, such as cutting line, filters or spark plugs.

• 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 gives you specific legal rights, and you may also have other rights which vary from state to state.

Sears, Roebuck and Co., Hoffman Estates, IL 60179

APPLICATIONS

As a trimmer:

Cutting grass and light weeds. Edging

• Decorative trimming around trees, fences, etc.

Attachment

Shaft

Muffler

Convertable TM

Coupler

On/Off Control

B-Handle Air Filter

Shaft Grip

Throttle

Control

Choke Lever

Spark Plug

Starter Rope

Grip

Fuel Cap

Cover

Primer Bulb

Cutting Head Shield

Cutting Head Line Cutting

iNSTALL AND ADJUST THE D= Shaft Grip HANDLE

1. Place D-handle over the

Blade

I _ Screws (4)

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. Minimum6 in.

2. Start screws with a large 115.24cm)

Flat-head or T-25 Torx screwdriver. Do not tighten

until making the necessary handle adjustment.

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

Fig. I

handle to the location that provides the best grip.

D-Handle

Bottom

Clamp

4. Tighten the clamp screws evenly, until the D-handle is secure. iNSTALL THE SHOULDER SUPPORT

1. Put the shoulder support on using the clip. (Fig. 2).

2. Adjust by lifting slightly on the rear of the lower clip then

push or pull the loose end of the strap length to fit the

operator's size and comfort. (Fig. 3).

3. Attach the shoulder clip to the unit. (Fig. 4)

Fig. 2

INSTALL THE CUTTING HEAD

SHIELD

1. Place the cutting head shield onto the guard mount

bracket, making sure to align the holes on the shield with

the ones in the guard mount bracket. (Fig. 5)

2. Take the 4 shield screws and screw each one into the

shield until finger tight.

3. Using a Flat Head or T-20 screw driver, tighten the

screws until the shield is firmly in place. (Fig. 5

Support

Clip

Adjustment

Tab

Fig. 3

Support

Fitting

Fig. 4

\ \ Screws (4)

Shield \ \ GuardMount

Fig. 5

OIL AND FUEL MIXING INSTRUCTIONS

-- I_L_ ARNING: It has been proven that fuel containing greater than

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, m Today's fuels are often a blend of gasoline

DEFINITION OF BLENDED FUELS _ _,_

and oxygenates such as ethanol,

methanol, or MTBE (ether). Alcohol- ' ' blended fuel absorbs water. As little as 1% UNLEADED GAS 2CYCLE OIL

water in the fuel can make fuel and oil separate. It forms acids when stored. (3.8 LITERS) (95 ml)

When using alcohol-blended fuel, use fresh fuel (less than 30 days old). MIXING RATIO - 40:1

USING BLENDED FUELS

_[__J CAUTION: For proper engine operation and maximum

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

• Always agitate the fuel mix before fueling the unit

• Drain the tank and run the engine dry before storing the unit USING FUEL ADDITIVES

The bottle of 2-cycle oil contains a fuel additive which will help inhibit corrosion and minimize the formation of gum deposits. It is recommended

to use our 2-cycle oil with this unit.

If unavailable, 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 fuel 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 for specific gas and oil mixing ratios.

NOTE: One gallon (3.8 liters) of unleaded fuel mixed with one 3.2 oz. (95

NOTE: Dispose of the old fuel/oil mix in accordance to Federal, State and

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

1 GALLON US 3.2 FL. OZ.

1LITER 25 ml

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.

ml.) bottle of 2-cycle oil makes a 40:1 fuel/oil ratio.

Local regulations.

may explode. Always stop the engine and allow it to cool before

_ ARNING: Gasoline is extremely flammable. Ignited vapors

FUELING THE UNIT

-- U_L_ WARNING: Remove fuel cap slowly to avoid injury from fuel

1. Remove the fuel cap.

_ ARNING: Add fuel in a clean, level and well ventilated

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

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.

outdoor area. Wipe up any spilled fuel immediately. Avoid creating a source of ignition for spilled fuel. Do not start the engine until

fuel vapors dissipate.

the tank.

before starting the engine.

_L_ ARNING: Operate this unit only in a well-ventilated outdoor area. I

_ ARNING: Avoid accidental starting. Make sure to be in the

NOTE: This unit usesthe Incredi-PulFMstarting system, which significantly

STARTING INSTRUCTIONS

1. Mix fuel with oil. See Oil and Fuel Mixing Instructions.

2. Fill the fuel tank with fresh, clean fuel mix. Refer to Fueling the Unit. NOTE: There is no need to turn the unit on. The On/Off Control is inthe ON ( I )

3. Fully press and release the Throttle ON (I)/OFF (O)

4. Place the choke lever in

5. Crouch in the starting Throttle Controm

6. Place the choke lever in

7. Press the throttle lock-out in

8. Keep the throttle squeezed

9. Continue squeezing the Starting

NOTE: Unit is properly warmed

IF... the engine hesitates, Fig.8

IF... the engine does not start, go back to step 3. IF... the engine fails to start after a few attempts, place the choke lever

IF WARM... If the engine is already warm, start the unit with the choke lever in

STOPPING INSTRUCTIONS

1. Release the throttle control and allow the engine to cool down by idling.

2. Press and hold the On/Off Control switch in the OFF (O) position until

Carbon monoxide exhaust fumes can be lethal in a confined area.

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

reduces the effort required to start the engine. There is no harsh resistance

when pulling the starter rope. Be aware that this starting method isvastly

different from (and much easier than) previous starting techniques.

position at all times (Fig.6).

primer bulb 10 times, slowly. Lock-Out Controm Some amount of fuel should \

be visible in the primer bulb and fuel lines (Fig. 7). If fuel

can not be seen in the bulb, press and release the bulb

until fuel is visible.

Position 1 (Fig. 7).

position (Fig. 8). Press the throttle lock-out in and Fig.6

lever. Pull the starter rope 5 Choke Lever times.

Position 2 (Fig. 7)

and squeeze the throttle control. Pull the starter rope

in a controlled motion 3 to 5

squeeze the throttle control _B__._ times to start engine. Primer

and allow the engine to warm up for 30 to 60 seconds. Fig. 7

throttle control, move the Position choke lever to Position 3

(Fig. 7) and continue warming the engine for an

additional 60 seconds. The unit may be used during this

time.

up when engine accelerates without Throttle Control

hesitation.

return the choke lever to Position 2 (Fig. 7) and continue warm-up.

in Position 3 and squeeze the throttle control. Pull the starter rope

out with a controlled and steady motion 3 to 8 times. The engine should start. If not, repeat.

Position 2. After the unit starts, move the choke lever to Position 3.

the unit comes to a complete stop (Fig. 6).

HOW TO START THE UNiT USING THE ELECTRIC STARTER OR POWER START BiT ACCESSORY.

NOTE= This Unit Can Use an Power Start or Power Start Bit Optional

STARTING iNSTRUCTiONS

1. Mix fuel with oil. See Oil and Fuel Mixing Instructions.

2. Fill the fuel tank with fresh, clean fuel mix. Refer to Fueling the Unit. 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

4. Move the choke lever to Position 1 (Fig. 7).

5. Crouch in the starting position (Fig. 8). Place the electric starter or

6. Press the throttle lock-out in and squeeze the throttle control lever.

7. Move the choke lever to Position 2 (Fig. 7).

8. Press the throttle lock-out in and squeeze the throttle control lever.

9. Continue to squeeze the throttle control, remove the electric starter or

10. Continue squeezing the throttle control, move the choke lever to

NOTE: Unit is properly warmed up when engine accelerates without

IF... the engine hesitates, return the choke lever to Position 2 (Fig. 7)

IF... the engine does not start, go back to step 3. IF... the engine fails to start after a few attempts, place the choke lever

IF WARM... If the engine is already warm, start the unit with the blue choker

STOPPING iNSTRUCTIONS

1. Release the throttle control and allow the engine to cool down by idling.

2. Press and hold the On/Off Control switch in the OFF (O) position until

HOLDING THE TRIMMER

-- i_[_ 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 protection and

• The operator's left arm is straight, the left

• The unit is at waist level

Accessory!

Please refer to the Power Starter or Power Start Bit operator's manual

for proper use of these features. (Items may be Sold Separately!

Please refer to page 9 of this manual for more information about

purchasing these accessories.)

ON ( I ) position at all times (Fig. 6).

of fuel should be visible in the primer bulb (Fig. 7). If fuel cannot be seen in the bulb, press and release the bulb until fuel is visible.

power start bit into the back of the unit. Refer to the Operation section of the Electric Starter or Power Start Bit operator's manual.

Press and hold the electric starter or drill ON (I) button for 2 seconds.

Press and hold the electric starter or drill ON (I) button for 2-second

intervals until the unit starts.

drill from the unit and allow the engine to warm up for 30 to 60 seconds.

Position 3 (Fig. 7) and run the unit for an additional 60 seconds. The unit may be used during this time.

hesitation.

and continue warm-up.

in Position 3 and squeeze the throttle control. Press and hold the electric starter or drill ON (I) button for 2-second intervals until the

unit starts.

lever in Position 2. After the unit starts, move the blue choker lever to Position 3.

the unit comes to a complete stop (Fig. 6).

to reduce the risk of injury when operating this unit.

proper clothing

With a slightly-bent right arm, the operator's

right hand is holding the shaft grip

hand holding the handle

The cutting attachment is parallel to the ground and easily contacts the grass

without the need to bend over

Fig. 9

ADJUSTING TRIMMING LINE LENGTH

The cutting head allows the release of trimming line without stopping the engine. To release more line, lightly tap the cutting attachment on the ground

(Fig. 10) while operating the trimmer at high speed. NOTE: Always keep the trimming line fully

Each time the head is bumped, about 1 inch (25.4 mm) of trimming line is released. A

blade in the cutting attachment shield will cut the line to the proper length if excess line is

released. For best results, tap the cutting head on bare

ground or hard soil. If line release is attempted intall grass, the engine may stall. Always keep the trimming line fully extended. Line release becomes

more difficult as the cutting line becomes shorter. NOTE: Do not rest the cutting head on the ground while the unit is

Some line breakage will occur from:

• Entanglement with foreign matter

TiPS FOR BEST TRIMMING RESULTS

• The cutting head and shield are designed to allow the unit to cut in either

• The life of the cutting line is dependent upon:

For example, the line will wear faster when trimming against a foundation wall as opposed to trimming around a tree. \

DECORATIVE TRIMMING Decorative trimming is accomplished by

removing all vegetation around trees, posts, fences and more.

Rotate the whole unit so that the cutting attachment is at a 30° angle to the ground

(Fig. 11).

MAINTENANCE SCHEDULE

-- i_ ARNING: To prevent serious injuw, never perform maintenance

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

extended. Line release becomes more difficult as the cutting line

becomes shorter.

Fig.1O

running.

Normal line fatigue Attempting to cut thick, stalky weeds

Forcing the line into objects such as walls or fence posts

Keep the cutting attachment parallel to the ground. Do not force the cutting attachment. 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.

Slowly move the trimmer 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.

direction, from right to left or left to right.

Proper adherence of explained trimming techniques

- What vegetation is cut

- Where vegetation is cut

_L _J

or repairs with unit running. Always service and repair a cool unit.

unsure about these procedures take the unit to Sears or other qualified service dealer. Call 1-800-4-MY-HOME® for more information.

and system may be performed by a Sears or other qualified service dealer. Call 1-800-4-MY-HOME® for more information.

FREQUENCY MAINTENANCE REQUIRED SEE Before starting Fill fuel tank with fresh fuel p. 5

engine Every 10 hours Clean and re-oil air filter p. 8

Every 25 hours Check spark plug condition and gap p. 9

Fig. 11

RAPID REWIND TM CUTTING HEAD LINE iNSTALLATION

Only use 0.095 in. (2.41 ram) replacement line. Other line width may make the engine overheat or fail. Cutting

NOTE: There may be a need to Arrow Head Knob

1. Align the arrows on the cutting

2. Using 10.5 ft. (3.2 m) of 0.095 Fig. 12

3. Hold the cutting head knob and

NOTE: If winding the line from a

4. Start the unit and bump the cutting head on the ground until the desired

REMOVING THE OLD LINE OR OBSTRUCTIONS NOTE: There should only be a

1. Firmly press in on the tabs that

NOTE: It may be easier to press

2. Detach the bump cap either

3. Remove any old line from the

4. Placethe inner reelback into the

5. Reattach the bump cap by

To install new line, please refer to

the Rapid Rewind Cutting Head

Line Installation section.

remove the old line prior to installing new line. If so, please refer to

Removing the old fine or obstructions.

head knob with the outer spool eyelets, if they are not Eyelet I already. (Fig. 12)

in. (2.41 mm) replacement line one of the eyelets until it

protrudes through the opposite side. Continue pushing or

pulling the line until the line is evenly distributed, so

pushanendofthelinethrough--_ _

approximately 5 ft. (1.5 m) is visible from both sides of the

cutting head.(Fig. 13)

turn the cutting head clockwise Fig. 13 to wind the line around the

inner reeluntil 5 in. (12.7 cm) is

protruding from each side of the cutting head.(Fig. 14)

large spool, push approximately 5 ft. (1.5 m)

of line through the cutting head to the other side. Tab

Turn the cutting head to wind the line in. When the

line winds to a distance of Fig. 14 5 in. from the head, cut the line on the spool side 5 inches from the

head.

cutting length is achieved.

need to remove the bump cap if there is an

obstruction or jammed line preventing either

new line installation or line advancement.

are on each side of the cutting

head. (Fig. 15)

in and then up on one tab at a time.

by letting it pop off, or a slight wiggle of the cap may

be required to pull it off the outer spool (Fig. 15)

inner reel or obstructions from the outer spool. (Fig. 16)

outer spool (Fig. 15).

aligning the tabs of the bump cap with the tab lock

windows of the outer spool and press down firmly until

both tabs snap back into

place. (Fig. 17)

Bump Cap _ / Spring

Inner

Reel ---_-___ Cutting

Spool Outer _----I__

.,_ Gearbox

Fig. 15

Fig. 16

Fig. 17

Head Knob

CHANGINGTHE CUTTING HEADS

_1_ ARNING: The gear housing gets hot with use. It can result ininjury to the operator. The housing remains hot for a short time

This unit was also shipped with a Hassle FreeTM PLUS cutting head. Either cutting head may be used at the operator's discretion.

Removing the Rapid Rewind TM Cutting Head

1. Align the shaft bushing hole

2. Hold the locking rod in place

3. While holding the locking

Installing the Hassle Free TM PLUS Cutting Head

1. Place the cutting head onto

2. Align the output shaft bushing

3. Hold the locking rod in place

4. Using a 1/2 in (13 ram) open-

Refer to the Hassle-Free TM PLUS line replacement instructions, for

line installation.

Removing the Hassle-Free TM PLUS Cutting Head

1. Align the output shaft bushing

2. Hold the locking rod in place

3. Use a 1/2 in (13 mm) wrench

Installing the Rapid Rewind TM cutting head

1. Align the output shaft bushing hole with the locking rod slot and insert the

2. Hold the locking rod in place by grasping it next to the shaft housing of

3. Screw the cutting head counterclockwise onto the output shaft. Tighten

even after the unit is turned off. Do not touch the gear housing until it has cooled.

unit, do not start or operate this unit with the locking rod in the

WARNING: To avoid serious personal injury or damage to the

locking rod slot.

with the locking rod slot and

Rapid Rewind TM Head

insert the locking rod into the output shaft bushing hole

(Fig. 18).

Output

Shaft

Bushing by grasping it next to the shaft housing of the unit (Fig. 19).

Locking

rod, remove the cutting head by turning it clockwise off of

the output shaft (Fig. 18). Store the cutting head for

future use.

Rod

Fig. 18

the output shaft and turn counterclockwise until finger

tight. (Fig. 20)

hole with the locking rod slot and insert the locking rod into

the shaft bushing hole (Fig. 21).

Glide Plate Hassle Free TM

Fig. 19

by grasping it next to the shaft housing of the unit (Fig. 19).

end wrench, tighten the cutting head securely in place.

Remove the locking rod.

Output Shaft _

Fig. 20

Rapid Rewind TM Head

hole with the locking rod slot and insert the locking rod into

the output shaft bushing hole (Fig. 18).

by grasping it next to the shaft housing of the unit (Fig. 19).

to remove the cutting head

Output _

Shaft

Bushing

Locking

Hole .__

Rod

Fig. 21

from the output shaft on the gearbox by turning clockwise. (Fig. 20)

locking rod into the shaft bushing hole (Fig. 21).

the unit (Fig. 19).

securely. (Fig. 21) Remove the locking rod.

PLuBHead

HASSLE=FREE TM PLUS LiNE REPLACEMENT 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 into the holes in the cutting head, identify

the proper holes. Follow directions as shown on

the glide plate. Do Not Glide Plate attempt to remove the

cutting head from the unit when replacing line.

Do not mix lines. Use 2NOTE:

black or 2 red only.

1. Remove the old line and line glide plate from the cutting

head.

2. Clean entire surface of

Cuttin¢ Head

Fig. 22

cutting head.

3. Reinstall line glide plate (Fig. 22). The glide plate isa keyed item

and will only fit one way. If it

Large Holes

does not go into the cutting head smoothly, DO NOT force it.

Rotatethe glide plate until it

slides into the cutting head easily.

NOTE: The glide plate must be

installed in the cutting head before inserting

new line.

PositioningTunnel

Fig.23

4. Insertboth ends of the line through the large holes in the

side of the cutting head (Fig.23).

5. Push and/or pull the line so that the line is snug against the hub

and is fully extended through the positioning tunnels. (Fig. 24)

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

sides.

Fig. 24

NOTE: Make sure that when installing new line, that the line is as close to

even as possible. Any variation in lengths may cause the unit to vibrate excessively. If this happens, stop the unit and make sure

the line is even.

7. Repeat steps 4 thru 6 to install the second trimmer line.

NOTE: Do not rest the Hassle-Free TM PLUS Cutting Head on the ground

while the unit is running.

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

NOTE: During normal use the trimming line may become worn unevenly

which may cause excessive vibrations in the unit. If this becomes uncomfortable or uncontrollable, stop the unit and replace the line.

AiR FILTER MAINTENANCE Cleaning the Air Filter

_[_ ARNING: To avoid serious personal injury, always turn the

unit off and allow it to cool before cleaning or maintaining it.

Clean and re-oil the air filter every 25 hours of operation. It is an important item to maintain. Failure to maintain your air filter properly can result in poor

performance or can cause permanent damage to your engine.

1. Open the air filter cover. Tab Lock Push the locking tab on the

top of the cover inward, then pull the air filter cover out Air Filter

and down. (Fig. 25).

2. Remove the air filter (Fig. 25). Tab

3. Wash the filter in detergent and water (Fig. 26). Rinse the Air Filter

filter thoroughly and allow it Cover to dry. Fig.25

4. Apply enough clean SAE 30 motor oil to lightly coat the filter (Fig. 27).

5. Squeezethefiltertospread J / andremoveexcessoil(Fig.28).

6. Replacethefilter(Fig.25).

NOTE:Iftheunitisoperated

withouttheairfilter,you willVOIDthewarranty.

7. Reinstalltheairfiltercover. Positiontheslotsonthe

bottomoftheairfiltercover ontothetabsatthebottom Fig.26

ofthebackplate(Figs.25).

8. Swingthecoverupuntilthe tabontheairfilterbackplate

snapsintoplaceinthesloton theairfiltercover(Fig.25).

CARBURETORADJUSTMENT

The idle speed of the engine is adjustable. An idle adjustment

screw is between the air filter cover and the engine starter

housing (Fig. 29). Fig. 27 NOTE: Careless adjustments

Check Fuel Mixture Old and/or improperly mixed fuel

is usually the reason for improper unit performance. Drain and refill the tank with fresh, properly- Fig. 28

mixed fuel prior to making any adjustments. Refer to Oil and Fuel Information.

Clean Air Filter The condition of the air filter is important to the operation of the unit. A dirty

air filter will restrict air flow and change the air/fuel mixture. This is often mistaken for an out of adjustment carburetor. Check the condition of the air

filter before adjusting the idle speed screw. Refer to Air Filter Maintenance. Adjust Idle Speed Screw

If, after checking the fuel mixture and cleaning the air filter, the engine still will not idle, adjust the idle speed screw as follows:

3. If the engine appears to be idling too fast, turn the idle speed screw

Checking the fuel mixture, cleaning the air filter and adjusting the idle speed should solve most engine problems. If not and all of the following are true:

• the engine will not idle

• the engine hesitates or stalls on acceleration

• there is a loss of engine power

Have the carburetor adjusted by an authorized service dealer. REPLACING THE SPARK PLUG

Use replacement #753-06193, a Champion RDJSJ spark plug, or equivalent. The correct air gap is 0.025 inch (0.635 ram). 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 wire firmly and pull

2. Clean around the spark plug. Remove the spark plug from the cylinder

can seriously damage

the unit. An authorized

service dealer should make carburetor

adjustments.

adjustments. Wear protective clothing and observe all safety

WARNING: The cutting attachment may spin during idle speed _

instructions to prevent serious personal injury.

Start the engine and run for one minute to warm up.

Refer to Starting/Stopping Instructions.

Release the throttle trigger and let the engine idle. If

the engine stops, insert a small phillips screwdriver

into the idle adjustment screw (Fig. 29). Turn the idle

speed screw clockwise 1/8 of a turn at a time (as needed) until the engine idles smoothly.

counterclockwise 1/8 of a turn at a time (as needed), to reduce idle speed.

it from the spark plug.

head by turning a 5/8-inch socket counterclockwise.

Idle Adjustment

Screw

Fig. 29

_L_ ARNING: Do not sand blast, scrape or clean spark plug

3. Replace a cracked, fouled or I I

4. Install a correctly-gapped

If using a torque wrench torque to: (0.635 ram) t 110-120 in.olb. (12.3-13.5 Nora)

Do not over tighten. Fig. 30 CLEANING

_[_ ARNING: To avoid serious personal injury, always turn the

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. Drain all fuel from the fuel tank into a container with the same 2-cycle

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

4. Thoroughly clean the unit and inspect it for any loose or damaged

PLUG-IN POWER START AND POWER BIT START FEATURES

This unit is designed to be started with an optional Plug-In Power Start or

Power Bit Start that are sold separately. If choosing to start the unit using

one of these features or have questions please contact your local retailer or call 1-800-4-MY-HOME®, for more information and purchasing. You may

also go to www.sears.com/craftsman.

Item No. Description

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

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

electrodes. Grit in the engine could damage the cylinder.

dirty spark plug. Set the air gap at 0.025 in. (0.635 mm)

using a feeler gauge (Fig. 30).

spark plug in the cylinder head. Tighten by turning the

5/8-inch socket clockwise until snug. 0.025 in. _, .

unit off 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.

fuel mixture. Do not use fuel that has been stored for more than 30

days. Dispose of the old fuel/oil mix in accordance to Federal, State and Local regulations.

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.

before attempting to start the unit after storage.

parts. Repair or replace damaged parts and tighten loose screws, nuts or bolts. The unit is ready for storage.

Electric Start Feature

PROBLEM SOLUTION

Empty fuel tank

Old or improperly mixed fuel

Engine is flooded

Air filter is plugged

Improper idle speed

Old or improperly mixed fuel

Dirty air filter

Old or improperly mixed fuel

Cutting attachment bound with grass

Inner reel bound up

Fill fuel tank with properly mixed fuel

Drain fuel tank and add fresh fuel mixture

With choke lever in position 3, squeeze the trigger and pull the starter rope

Replace or clean the air filter

Adjust according to the Idle Speed Adjustments section.

Drain fuel tank and add fresh fuel mixture

Clean or replace the air filter

Drain fuel tank and add fresh fuel mixture

Stop the engine and clean cutting attachment

Replace the inner reel

Line welded

Not enough line is exposed

Oil, cleaner or lubricant in cutting head

Disassemble, remove the welded section and rewind

Push the bump head and pull out line until 4 inches (102 mm) of line is

outside of the cutting attachment

Clean and thoroughly dry the cutting head

ELP.

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