Craftsman 316.711201 User Manual

Operator's Manual

2=Cycle

Electric Start Capable

WEEDWACKER® GAS TRIMMER

Model No. 316.711201

UHB#UEVAB_E $ TAR T_N _ E A $ _ _"

o SAFETY o ASSEMBLY

CAUTION: Before using this product, read this manual and follow all its Safety Rules and Operating instructions.

Sears Brands Management Corporation, Hoffman Estates, IL 60179 U.S.A.

Visit our website: www.craftsman.com

769-10263 / 00 10/14

o OPERATION o MAINTENANCE

o ESPANOL, R 19

TABLEOFCONTENTS

Safety............................................... 2

Warranty............................................. 5

KnowYourUnit........................................ 6

Specifications......................................... 6

Assembly............................................. 7

OilandFuel........................................... 9

StartingandStopping.................................. 10

Operation............................................ 12

Maintenance......................................... 14

CleaningandStorage.................................. 16

Troubleshooting....................................... 17

RepairProtectionAgreements........................... 18

ServiceNumbers.............................. BackCover

Allinformation,illustrationsandspecificationsinthismanualarebased onthelatestproductinformationavailableatthetimeofprinting.We reservetherighttomakechangesatanytimewithoutnotice.

©SeamBrands,LLC

Thepurposeofsafetysymbolsistoattractyourattentionto

possibledangers.Thesafetysymbols,andtheirexplanations, deserveyourcarefulattentionandunderstanding.Thesafety warningsdonotbythemselveseliminateanydanger.The instructionsorwarningstheygivearenotsubstitutesforproper accidentpreventionmeasures.

iSYMBOL MEANING

DANGER. Signals an EXTREME hazard.

Failure to obey a safety DANGER signal WILL result in serious injury or death to yourself or to others.

Failure to obey a safety WARNING signal CAN result in

WAR NING: Signals a SERIOUS hazard.

serious injury to yourself or to others.

•

CAUTION. Signals a MODERATE hazard.

Failure to obey a safety CAUTION signal MAY result in property damage or injury to yourself or to others.

NOTE: Advises you of information or instructions vital to the

operation or maintenance of the equipment.

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, contact a Sears Parts & Repair Service Center to

install the appropriate muffler assembly.

WARNING: This product contains a chemical

_ CALIFORNIA PROPOSiTiON 65

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.

known to the state of California to cause cancer, birth defects or other reproductive harm.

• iMPORTANT SAFETY iNSTRUCTiONS •

READ ALL iNSTRUCTiONS BEFORE OPERATING

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 must not operate the unit. Teens must be accompanied

and 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. Only use the trimming line described inthe Specifications section

of this manual. Never use metal-reinforced line, wire, chain or rope. These can break off and become dangerous projectiles.

Do not replace the cutting head with rigid or metal blades. Doing

so could result in serious injury.

Be aware of risk of injury to the head, hands and feet.

Carefully inspect the area before starting the unit. Remove rocks, broken glass, nails, wire, string and other objects that

may be thrown or become entangled with the unit. Clear the area of children, bystanders and pets; keep them

outside a 50-foot (15 m) radius, at a minimum. Even then, they are still at risk from thrown objects. Encourage bystanders to wear eye protection. If you are approached, stop the unit immediately.

Squeeze the throttle control and check that it returns automatically to the idle position. Make all adjustments or repairs before using the unit.

This unit is intended for occasional, household use only.

SAFETY WARNINGS FOR GAS UNITS

its vapors can explode if ignited. Take the following

WARNING: Gasoline is highly flammable and

precautions:

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 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.

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 unit.

Move the unit at least 30 ft. (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. Operate this unit only in a well

ventilated outdoor area.

WHILE OPERATING

Wear safety glasses or goggles that meet current ANSi / ISEA Z87.1 standards and are marked as such. Wear ear/hearing protection when operating this unit. Wear a face mask or dust mask if the operation is dusty.

Wear heavy long pants, boots, gloves and a long sleeve shirt. 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 the 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 head should remain stationary when the engine

idles. If it does not, refer to Adjusting the Idle Speed.

Adjust the handle to provide the best grip, if applicable.

Make sure the 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 in the starting position whenever

pulling the starter rope. The operator and unit must be in a stable position while starting. Refer to Starting and Stopping.

Use the right tool. Only use this tool for its intended purpose.

Always hold the unit with both hands when operating. Keep a

firm grip on both handles or grips. Do not overreach. Always keep proper footing and balance. Take

extra care when working on stairs, steep slopes or inclines. To avoid serious injury, do not operate the unit while on a ladder or

a roof. Keep hands, face, and feet away from all moving parts. Do not

touch or try to stop moving parts. Do not touch the engine, gear housing or muffler. These parts get

extremely hot from operation, even after the unit is turned off. Do not operate the unit faster than the speed needed to do the job.

Do not run the unit at high speed when not in use. Do not force the unit. It will do a better, safer job when used at

the intended rate.

Always stop the unit when operation is delayed or when walking

from one location to another. Before setting the unit down, always make sure the engine is off

and all moving parts have stopped. If you strike or become entangled with a foreign object, stop the

unit immediately and check for damage. Do not operate the unit before repairing damage. Do not operate the unit with loose or damaged parts.

Turn the engine to off and disconnect the spark plug for

maintenance or repair. Use only original equipment manufacturer (OEM) replacement

parts and accessories for this unit. Use of any other parts or accessories could lead to serious injury to the user, or damage to the unit, and void the warranty.

Keep the unit clean. Carefully remove vegetation and other debris that could block moving parts.

To reduce fire hazard, replace a faulty muffler and spark arrestor.

Keep the engine and muffler free from grass, leaves, excessive grease or carbon build up.

If the unit starts to vibrate abnormally, stop the unit immediately. Inspect the unit for the cause of the vibration. Vibration is generally an indicator of trouble.

OTHER SAFETY WARNINGS

• Maintain the unit with care. All service, other than the maintenance procedures described in

this manual, should be performed by a Sears or other qualified service dealer.

Never remove, modify or make inoperative any safety device

furnished with the unit.

Before inspecting, servicing, cleaning, storing, transporting or replacing any parts on the unit:

1.Stop the unit.

2. Make sure all moving parts have stopped.

3. Allow the unit to cool.

4. Disconnect the spark plug wire. Secure the unit while transporting.

• 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.

Never store the unit with fuel in the tank, inside a building where fumes may reach an open flame (pilot lights, etc.) or sparks (switches, electrical motors, etc.).

Store the unit in a dry place, secured or at a height to prevent unauthorized use or damage. Keep the unit out of the reach of

children. Never douse or squirt the unit with water or any other liquid.

Keep handles dry and clean (free from debris, oil and grease). Clean the unit after each use. Refer to Cleaning and Storage. Do not use solvents or strong detergents.

Keep these instructions. Refer to them often and use them to instruct other users. If you loan this unit to others, also loan

them these instructions.

SAVE THESE INSTRUCTIONS

SYMBOL MEANING

, SAFETY ALERT SYMBOL

_ !ndicates danger I Wain!ng or cauti0n: MaY be used in

i ;ira . conjunction with other symbols or pictographs.

WARNING: Readtheoperator's

o READ OPERATOR'S MANUAL

manual(s) and follow a!! warnings and safety instructionsl Failure to do so Can reSult in Serious

. injuryto the operator and/or bystanders.

4tii " WEAR EYE AND HEAR'NG PROTECT'ON

oWsiseAccanRcaN!Ngi :!:OuW_ _;:iteS :rid

! n;i ev i Y n] Y cJ aing :

Wear eye protection meeting Cur[ent ANSI/ISEA

Z871! standa[ds and ear protection when operating this unit. Use afull face shield when needed.

%, UNL EDFUEL

_,_,# .

_L.5/J

AlwaYs use Clean, fresh unleaded fue!:

.OIL

. Refer to operator S manual for the proper type of Oil.

• DO NOT USE E85 FUELIN THIS UNIT

WARNIN G::"! has been ploven tha;

c_Onmtaaignieng,g[:ate rnethanndlO:f__thhtnwOlrWilnlti_.ke!y

SYMBOL MEANING

...... _ , ON/OFF STOP CONTROL

| oN/START/RUN

OFF or STOP

' ON/OFFSTOP CONTROL

Push primer bulb, fully and slowly, 15 times.

' PRIMER BULB

,l® ", THROWN OBJECTS AND ROTATING CUTTER CAN

/7_ CAUSE SEVERE INJURY

"" "--_'/ Sm o a be

,_}t_,,,,q,, or cylinder. You may get burned. These parts get

_1_'_' extremely hot from operation. When turned off they

WARNING: all bjectscn

prope ed at h gh speed, caus ng njury. Keep away

. from the rotating rotor.

' KEEP BYSTANDERS AWAY

e_Wpe_ R N !eN rgF:elK:etP,a'abY5tafelt r(1'5m)

. from the operating area.

' HOT SURFACE

WARN ! NG. Donottouchahotmuff,er

remain hot for a short time.

._' SHARP BLADE

,,_r_,,,,,_• Sharp blade on trimmer

attachment shield. To prevent serious injury, do not

• touch the line cutting blade.

CRAFTSMANLiMiTED WARRANTY

FOR TWO YEARS from the date of sale, this product is warranted against defects inmaterial or workmanship. WITH PROOF OF SALE, a defective product will receive free repair or replacement at option of seller.

ADDITIONAL LIMITED WARRANTY ON TRIMMER SHAFTS FOR THE THIRD THROUGH TENTH YEAR from the date of sale, the outer metal housing of the upper and lower trimmer shafts is warranted

against defects in material or workmanship. WiTH PROOF OF SALE, a new housing will be supplied free of charge. You are responsible for the labor cost of installation. This additional

coverage does not apply to inner trimmer shaft components.

For warranty coverage details to obtain free repair or replacement, visit the web page: www.craftsman.com/warranty 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, spark plugs, or filters.

• 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

To order parts or schedule service for this product, call 1-888-331-4569.

APPLiCATiONS Asatrimmer:

• Cuttinggrassandlightweeds Edging

Decorativetrimmingaroundtrees,fences,etc.

Otheroptionalaccessoriesmaybeusedwiththisunit.

Muffler

Spark Plug

Starter

Shaft Grip

ASSEMBLY TOOLS REQUIRED: = #2 Phillips screwdriver

Cutting Head

Shaft Housing

LineCutting Blade

Cutting Head

Shield

On/Off Switch

Coupler

Fuel Cap

Throttle

Control

Primer Bulb

Engine Type ........................................................................................ Air-Cooled, 2-Cycle

Displacement ....................................................................................... 27 cc (1.64 cu. in.)

Spark Plug Gap .................................................................................... 0.025 in. (0.635 mm)

Spark Plug .......................................................................... Champion® RDJ7J or equivalent plug

Lubrication ........................................................................................... Fuel/Oil Mixture

Fuel/Oil Ratio .................................................................................................. 40:1

Fuel Tank Capacity ...................................................................................... 14 oz. (414 ml)

Approximate Unit Weight (No fuel) .................................................................... 11 - 13 Ibs. (5 - 5.9 kg)

Trimmer Mechanism ................................................................................. Hassle FreeTM Head

Trimming Line ....................................................................... Hassle Free TM XTRA QUIET Spiral Line

Cutting Path Diameter .................................................................................. 14 in. (35.56 cm)

* All specifications 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.

iNSTALLiNG THE CUTTING HEAD SHIELD

Screws (2)

_ WARNING; To prevent serious personal injury, never j

operate the unit without the cutting head shield in place.

1. Place the cutting head shield onto the mount bracket. Align the holes in the cutting head shield with the holes in the mount

bracket. (Fig. 1)

Screw the 2 screws through the mount bracket and into the cutting head shield until finger tight.

Using a #2 Phillips screwdriver, tighten the screws until the

cutting head shield is firmly in place. Tighten the screws equally. The gap between the mount bracket and the cutting head shield

should be the same on each side.

ADJUSTING THE HANDLE If the handle requires adjustment:

1. Flip the handle lever up to loosen the handle (Fig. 2).

2. While holding the unit in the operating position (Fig. 10), move the handle to the location that provides the best grip. Place it a

minimum of 6 inches (15.24 cm) from the end of the shaft grip (Fig. 2).

3. Tilt the handle as desired (Fig. 2).

4. Flip the handle lever down to secure the handle.

Mount Bracket " hield

Fig. 1

Handle

Shaft Shaft Grip

Housing Minimum 6 in.

(15.24 cm)

Handle Lever

Fig. 2

WARNING: Before using any attachment, read and i

understand the manual that came with the attachment.

WARNING: To avoid serious personal injury and i

damage to the unit, shut the unit off before removing or installing an attachment.

IFollow all safety information contained within.

Loosen

OPERATING THE COUPLER The coupler enables the use of various optional attachments. Installing the Attachment

1. Remove the cap from the attachment. If present, remove the gray spacer from the coupler.

2. Set the unit on a flat, level surface.

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

4. Align the release button with the guide recess (Fig. 5).

5. Push the attachment straight into the coupler (Fig. 4) until the release button snaps firmly into the primary hole (Fig. 5).

6. Turn the knob clockwise to tighten the coupler (Fig. 3).

CAUTION: Before operating the unit, make sure the

release button is fully snapped into the primary hole and the knob is securely tightened.

CAUTION: Unless specified otherwise, the release

button should be snapped into the primary hole only. Using the wrong hole could lead to personal injury or damage to the unit.

Removing the Attachment

1. Set the unit on a flat, level surface.

2. Turn the knob counterclockwise to loosen the coupler (Fig. 3).

3. Press and hold the release button (Fig. 5).

4. Pull the attachment straight out of the coupler (Fig. 4).

Tighten

Coupler

Primary Hole

Knob

Fig. 3

Attachment

Fig. 4

Release Button

Fig. 5

Guide Recess

OiL AND FUEL MiXiNG iNSTRUCTiONS

The use of old and/or improperly mixed fuel is the most common cause

of performance problems. Use only fresh, clean unleaded gasoline. Follow the instructions carefully for the proper gasoline/oil mixture.

Definition of Blended Fuels

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, forming acids when stored. ALWAYS use fresh fuel (less than 30 days old).

NOTE: Dispose of old fuel according to federal, state and local

regulations.

Using Blended Fuels If using a blended fuel:

• Always use the fresh fuel mix explained in your operator's manual Use the fuel additive STA-BIL® or an equivalent

Always agitate the fuel mix before fueling the unit

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

_WARNING: DO NOT USE E85 FUEL iN THiS UNIT. it |

Using Fuel Additives

The bottle of 2-cycle oil provided with this unit contains a fuel

additive to help inhibit corrosion and minimize gum deposits.

Always use the brand of 2-cycle oil that came with this unit. If this is

unavailable, use a 2-cycle oil designed for air-cooled engines and mix it with a fuel additive, such as STA-BIL Fuel 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.

Mixing the Fuel NOTE: This unit comes with a 3.2 oz. (95 ml) bottle of 2-cycle oil. To

has been proven that fuel containing greater than 10% ethanol will likely damage this engine and void the warranty.

obtain the correct fuel mixture described below, pour the entire

bottle into one gallon of unleaded gasoline.

FUELING THE UNiT

WARNING: Gasoline is extremely flammable, ignited

vapors 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.

WARNING: Remove the fuel cap slowly to avoid injury

from fuel spray. Never operate the unit without the fuel cap securely in place.

WARNING: Add fuel in a clean, well ventilated 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.

1. Position the unit with the fuel cap facing up.

2. Remove the fuel cap.

3. Place the fuel container spout into the fill hole on the fuel tank and fill the tank.

NOTE: Do not overfill the tank.

4. Wipe up any fuel that may have spilled.

5. Reinstall the fuel cap.

]

6. Move the unit at least 30 ft. (9.1 m) from the fuel container and the fueling site before starting the engine.

CAUTION: For proper engine operation and maximum

reliability, pay strict attention to the gasoline and oil mixing instructions on the 2-cycle oil bottle. Using improperly mixed fuel can severely damage the engine.

Thoroughly mix the proper ratio of unleaded gasoline with 2-cycle

engine oil. Do not mix them directly in the unit's fuel tank. Use a separate fuel can. Use a 40:1 gasoline/oil ratio. See the table below for specific gasoline and oil mixing ratios.

Unleaded gasoline

1 gallon U.S.

(3.8 liters}

1 liter

MIXING RATIO =40:1

2=cycle oil

3.2 fL oz. (95ml}

25 ml

outdoor area. Carbon monoxide exhaust fumes can be

I_lib IWARNING: Operate this unit only in a well-ventilated

lethal in a confined area.

Off (O) / Stop

On ( I ) / Start

[__J WARNING: Avoid accidentally starting the unit. To avoid

STARTING iNSTRUCTiONS

1. Mix gasoline with oil. Refer to Oil and Fuel Mixing Instructions.

2. Fill the fuel tank. Refer to Fueling the Unit. NOTE: There is no need to turn the unit on. The On/Off switch is in

3. Slowly press and release the primer bulb 15 times (Fig. 7). If fuel

4. Crouch in the starting position (Fig. 8). NOTE: SQUEEZE and HOLD the throttle control for ALL further steps.

5. Squeeze and hold the throttle control (Fig. 6). Pull the starter rope

NOTE: This unit uses the INCREDI-PULL TM starting system, which

6. Continue to squeeze the throttle control. Allow the engine to

NOTE: The engine is properly warmed up when it accelerates

IF... the unit does not start after 10 pulls of the starter rope, begin

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

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

cannot be seen in the primer bulb, press and release the primer bulb until fuel is visible.

with a controlled and steady motion until the unit starts (Fig. 8).

significantly reduces the effort required to start the engine.

warm up for 30 to 60 seconds.

without hesitation.

the starting procedure with step 3.

Starter Rope Grip

Throttle Control

Fig. 6

Primer Bulb

Fig. 7

Starting

Position

STOPPING iNSTRUCTiONS

1. Release the throttle control and allow the engine to idle.

2. Press and hold the On/Off switch in the OFF (O) position until the engine comes to a complete stop (Fig. 6).

Throttle Control

Fig. 8

ThisunitcanbestartedwithanoptionalSpeedStartTM accessory

(items sold separately). Please refer to the Speed Start TM accessory operator's manual for the proper use of this feature.

Please contact your local Craftsman retailer, call 1-888-331-4569 or visit www.craftsman.com for more information.

STARTING iNSTRUCTiONS

1. Mix gasoline with oil. Refer to Oil and Fuel Mixing Instructions.

2. Fill the fuel tank. Refer to Fueling the Unit. NOTE: There is no need to turn the unit on. The On/Off switch is in

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

3. Slowly press and release the primer bulb 15 times (Fig. 7). If fuel cannot be seen in the primer bulb, press and release the primer

bulb until fuel is visible.

4. Crouch in the starting position (Fig. 8).

5. Insert the Speed Start TM accessory into the Speed Start TM port (Fig. 9). Refer to the Operation section of the Speed Start TM accessory operator's manual.

NOTE: SQUEEZE and HOLD the throttle control for ALL further steps.

6. Squeeze and hold the throttle control (Fig. 6). Run the Speed Start TM accessory in intervals no longer than 2 seconds each

until the unit starts.

7. Remove the Speed Start TM accessory from the unit.

8. Continue to squeeze the throttle control. Allow the engine to warm up for 30 to 60 seconds.

NOTE: The engine is properly warmed up when it accelerates

without hesitation.

iF... the unit does not start, begin the starting procedure with step 3.

item No. Description

316.85951 .............................. Plug-in Power Start

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

316.85953 ............................. Cordless Power Start

Speed Start TM

Port

Fig. 9

STOPPING INSTRUCTIONS

1. Release the throttle control and allow the engine to idle.

2. Press and hold the On/Off switch in the OFF (0) position until the engine comes to a complete stop (Fig. 6).

HOLDING THE UNiT

WARNING: Always wear eye, hearing, hand, foot and i

body protection to reduce the risk of injury when operating this unit.

WARNING: To prevent serious personal injury, avoid arm i

contact with the engine while operating the unit. The engine may be extremely hot.

• Stand in the operating position (Fig. 10). Stand up straight. Do not bend over.

Keep feet apart and firmly planted.

Hold the shaft grip with the right hand. Keep the right arm

slightly bent.

Hold the handle with the left hand. Keep the left arm straight. Hold the unit at waist level.

Position the cutting head a few inches above the ground.

TiPS FOR BEST RESULTS = To direct clippings away from the operator, tilt the cutting head

slightly down to the right; cut from left to right whenever possible.

Do not trim wet grass or weeds.

NOTE: Some line breakage will occur from:

Entanglement with foreign matter Normal line fatigue

Attempting to cut thick vegetation

Forcing the line into objects such as walls or fence posts

Fig. 10

DECORATIVE TRiMMiNG When trimming around trees, posts, fences, etc., rotate the whole

unit so that the cutting head is at a 30 ° angle to the ground (Fig. 11).

Fig. 11

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