shindaiwa c270 & t270 user manual

C270

WARNING!

■ To minimize the risk of injury to yourself and others, read this manual and familiarize yourself with its contents.

■ Always wear eye protection when operating this unit!

SHINDAIWA OWNER’S/OPERATOR’S MANUAL

T270 GRASS TRIMMERC270 BRUSHCUTTER

T270

2

General Safety InstructionsAttention Statements

Contents

Throughout this manual are special “Attention Statements”.

IMPORTANT!The operational procedures described in this manual are intended to help you get the most from this unit, and to protect you and others from harm. These procedures are guidelines for safe operation under most conditions, and are not intended to replace any safety rules and/or laws that may be in force in your area.If you have questions regarding your 270-series unit, or if you do not under-stand something in this manual, your Shindaiwa dealer will be glad to assist you. You may also contact YAMABIKO CORPORATION at the address printed on the back of this manual.

CAUTION!A statement preceded by the word “CAUTION” contains information that should be acted upon to avoid damag-ing your 270-series unit.

IMPORTANT!A statement preceded by the word “IMPORTANT” is one that possesses special signi cance.

NOTE:A statement preceded by the word “NOTE” contains information that is handy to know and may make your job easier.

Introduction

Attention Statements .............................. 2General Safety Instructions .................... 2Safety Labels .......................................... 4Product Description ................................ 5Speci cations ......................................... 5Assembly ................................................ 6Mixing Fuel ........................................... 12Starting the Engine ............................... 13Stopping the Engine ............................. 13Adjusting Engine Idle ........................... 14Checking Unit Condition ....................... 14Shoulder Strap...................................... 15Cutting Grass (Trimmer Head) ............ 15Using a Brushcutter Blade .................... 16Maintenance ......................................... 17Long Term Storage ............................... 19Blade Sharpening ................................. 19Troubleshooting Guide ......................... 20

PAGE

The Shindaiwa 270-series of hand-held power tools has been designed and built to deliver superior performance and reliability without compromise to quality, comfort, or durability.Shindaiwa high performance engines rep-resent the leading edge of 2-cycle engine technology, delivering exceptionally high power from remarkably low displacement and weight. As an owner/operator, you’ll soon discover for yourself why Shindaiwa is simply in a class by itself!

IMPORTANT!The information contained in this manual describes units available at the time of publication.

While every attempt has been made to give you the very latest information about your Shindaiwa product, there may be some differences between your 270-se-ries unit and what is described here. YAMABIKO CORPORATION reserves the right to make changes to products without prior noti cation, and without obligation to make alterations to units previously manufactured.

WARNING!

The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth de-fects or other reproductive harm.

WARNING!

A statement preceded by the trian-gular attention symbol and the word “WARNING” contains information that should be acted upon to prevent seri-ous bodily injury.

Read and follow thisoperators manual.Failure to do so couldresult in serious injury.

Wear eye and hearingprotection at all timesduring the operation of this unit.

Keep bystandersat least 50 feet (15 m)away during operation.

Beware of thrown or ricocheted objects.

Do not operate this unit with a blade unless the unit is equipped with a Shindaiwa-approvedhandlebar or barrier.

Always wear a harness when operating this unit with a blade. A harness is also recommended when using trimmer line.

If unit is used as a brushcutter, beware of blade thrust. A jammedblade can cause the unit to jerk suddenly and may cause the operator to lose control of the unit.

Work SafelyTrimmers and brushcutters run at very high speeds and can do serious damage or injury if they are misused or abused. Never allow a person without training or instruction to operate this unit!

WARNING!

Use Good Judgment

ALWAYS wear eye protection to shield against thrown objects.NEVER run the engine when transport-ing the unit.NEVER run the engine indoors! Make sure there is always good ventilation. Fumes from engine exhaust can cause serious injury or death.ALWAYS clear your work area of trash or hidden debris that could be thrown back at you or toward a bystander.ALWAYS use the proper cutting tool for the job.ALWAYS stop the engine immediately if the unit suddenly begins to vibrate or shake. Inspect for broken, missing or improperly installed parts or attach-ments.NEVER extend trimming line beyond the length speci ed for your unit.ALWAYS keep the unit as clean as practical. Keep it free of loose vegeta-tion, mud, etc.ALWAYS hold the unit rmly with both hands when cutting or trimming, and maintain control at all times.ALWAYS keep the handles clean.ALWAYS disconnect the spark plug wire before performing any main ten-ance work.ALWAYS, if a saw blade should bind fast in a cut, shut off the engine imme-diately. Push the branch or tree to ease the bind and free the blade.

WARNING!

Never make unauthorized attachment installations.

3

WARNING!

Never operate power equipment of any kind if you are tired or if you are under the in uence of alcohol, drugs, medication or any other substance that could affect your ability or judgement.

WARNING!

Minimize the Risk of Fire!

NEVER smoke or light res near the trimmer or brushcutter.ALWAYS stop the engine and allow it to cool before refueling. Avoid over ll-ing and wipe off any fuel that may have spilled.ALWAYS inspect the unit for fuel leaks before each use. During each re ll, check that no fuel leaks from around the fuel cap and/or fuel tank. If fuel leaks are evident, stop using the unit immediately. Fuel leaks must be re-paired before using the unit.ALWAYS move the unit to a place well away from a fuel storage area or other readily ammable materials before starting the engine.NEVER place ammable material close to the engine muf er.NEVER operate the engine without the spark arrester screen in place.

Stay AlertYou must be physically and mentally t to operate this unit safely.

General Safety Instructions The Properly Equipped Operator

Figure 1

Always wear a harness when operating a unit equipped with a blade.

Wear appropriate footwear (non-skid boots or shoes): do not wear open-toed shoes or sandals. Never work

barefooted!

Wear hearing protection devices and a broad-brimmed hat or helmet.

Wear close- tting cloth-ing to protect legs and

arms. Gloves offer added protection and are strongly recommended. Do not wear

clothing or jewelry that could get caught in

machinery or underbrush. NEVER wear shorts!

Always wear eye protection such as goggles or

safety glasses.

Always operate with both hands rmly gripping the

machine.

When operating with a blade, make sure the handle is posi-

tioned to provide you with maximum

protection from contacting the blade.

Keep away from the rotating trimming line or blade at all

times, and never lift a moving attachment above waist-high.

Keep a proper footing and do not

overreach—maintain your balance at all

times during operation.

Always make sure the appropriate cutting

attachment shield is correctly installed.

4

Safety Labels

Figure 3

IMPORTANT!Safety and Operation Information Labels: Make sure all information labels are un damaged and readable. Immediately replace damaged or missing information labels. New labels are available from your local authorized Shindaiwa dealer.

C270

Be Aware of the Working Environment

Avoid long-term opera-tion in very hot or very

cold weather. Make sure bystanders or observers outside the 50-foot “danger zone”

wear eye protection.

Be extremely careful of slippery

terrain, espe-cially during rainy

weather.

Always make sure the appropriate

cutting attachment shield is correctly

installed.

Beware of a coasting blade when brushcutting

or edging. A coasting blade can injure while it continues to spin after the throttle trig-ger is released or after the

engine is stopped.

When operating in rocky terrain or near electric wires or fences, use extreme

caution to avoid contacting such items with the cutting attachment.

Be constantly alert for objects and debris that could be thrown either from the rotating cutting attachment or bounced from a

hard surface.

If contact is made with a hard object,

stop the engine and inspect the

cutting attachment for damage.

50 FEET Reduce the risk of bystanders being struck by ying

debris. Make sure no one is within 50 feet (15 meters)—that’s about 16 paces—of

an operating attach-

ment.

Figure 2

This label indicates the minimum distance between front handle and rear grip

per ANSI B175.3.

T270

5

WARNING!

Do not make unauthorized modi ca-tions or alterations to either of these units or their components.

Using the accompanying illustrations as a guide, familiarize yourself with this unit and its various components. Understanding your machine helps ensure top performance, long service life, and safer operation.

Figure 4

Product Description

T270 Grass Trimmer

Handle

ThrottleTrigger

Cutting Attachment Shield

Outer Tube

Grip

Gearcase

Barrier Bar

Fuel Tank

Cylinder Cover

Spark Plug

Ignition Switch

Hanger

Trimmer Head Line Cutter

Cylinder Cover

C270 Brushcutter

Handlebar

Fuel Tank

ThrottleTrigger

Gearcase

Brushcutter Blade


Outer Tube

Hanger

Spark Plug

Ignition Switch

Engine Model.......................................................... S270 EngineDry Weight, T270 ......................................... 5.6 kg/12.3 poundsDry Weight, C270 ........................................ 6.2 kg/13.7 poundsType ..................................... 2-cycle, vertical cylinder, air cooledBore x Stroke ........................... 34 mm x 30 mm/1.3 in. x 1.2 in.Displacement ...................................................27.2cc/1.7 cu. in.Maximum Power Output .......................................1.1 kW/1.5 hpOperating RPM Range .......................... 4500-9000 RPM (min-1)Transmission Type..................................... Automatic centrifugal

clutch through bevel gearsFuel............................................. Gasoline-oil mixture, 50:1 with

Shindaiwa 2-cycle Mixing Oil

Fuel Tank Capacity ..................................... 670 ml/22.6 ouncesCarburetion ..................................................TK, Diaphragm typeIgnition ............................... Fully electronic, transistor controlledSpark Plug ..............................................................NGK BMR6AAir Cleaner........................................................... Foam ElementStarting Method .................................................................RecoilStopping Method ............................Slide switch, grounding typeHandle ................................... Loop handle w/Barrier Bar (T270)

Handlebar (C270)

Speci cations

Prior to AssemblyBefore assembling this product, please make sure you have all the components required for a complete unit:■ Engine assembly (Powerhead).■ Outer tube assembly.■ Cutting attachment shield.

Carefully inspect all components for damage.

IMPORTANT!The terms “left,” “left-hand,” and “LH”: “right,” “right-hand,” and “RH”; “front” and “rear” refer to directions as viewed by the operator during normal operation of this product.

Speci cations are subject to change without notice.

■ Cutting attachment (trimmer head or brushcutter blade).

■ Correct operator handle for application.■ Tool kit including: hex wrenches, screw-

driver, combination spark plug wrench.■ Goggles

6

Driveshaft/Powerhead T270/C270

Grip

1. Use the 4 mm hex wrench to loosen the outer tube clamp screw located on the fan cover housing on the power-head. Use the 5 mm hex wrench to remove the index screw from the outer tube clamp fan cover housing.

Connect the Outer Tube to the Powerhead.

Main Shaft

Grip must butt- t against the tube clamp.

Tube Clamp

Hex Wrench Index Hole

Clamp Screw

Index Bolt

CAUTION!Do not to force the tube into the pow-erhead! If installation is dif cult, slowly rotate the outer tube or mainshaft until you feel the mainshaft splines engage inside the fan cover housing.

4. Rotate the shaft tube until the gearcase output shaft faces “down,” and the threaded index screw hole in the fan cover tube clamp aligns with the index hole in the shaft tube. Install and tighten the index bolt, and then rmly tighten the tube clamp screw.

Outer Tube

Figure 6Figure 5

Assembly

2. Place the powerhead on a at surface, resting on its built-in stand (spark plug facing “up”).

3. Slide the outer tube assembly into the powerhead until the grip on the shaft tube touches the tube clamp. See Figure 6.

7

27005

Install the Throttle Cable T270

CAUTION!Overtightening the throttle assembly screws can permanently damage plas-tic throttle components!

Grip

Throttle Cable

Ground Lead

Ignition Wire

Vinyl Tube

Figure 7

Figure 8

Assembly

Throttle Control

1. Loosen the throttle lever clamp screw A. See Figure 7.

2. Slide the throttle assembly forward approximately 2 inches.See Figure 7.

3. Starting from the powerhead, push the throttle cable through the handgrip until it appears at the throttle assembly.

4. Insert the throttle cable end into the socket on the throttle lever and push the cable past the retainer.

5. Push the throttle assembly back into its original position.

6. Tighten the throttle lever clamp screw A.

Throttle Lever Clamp Screw A

Test the throttle lever for proper “free play” of approximately 7 mm in the idle position. If necessary, adjustments can be made at the carburetor by loosening the cable locknut and then raising or lowering the cable adjuster as required. See Figure 9.

7 mm Free Play

Cable Adjuster

Locknut

Adjusting Free Play

27043

Figure 9

7. Using nger pressure only, connect the ignition wire onto the connector on the powerhead. Secure the ground lead to the ground lead screw . See Figure 8.

8. Check throttle free play and adjust if required. Ground Lead

Screw

27007

Handle on the Outer Tube T270

Handle

Barrier Bar

Handle Retaining Screws

Outer Tube

Figure 10

Assembly

Handle Positioning Label

Nuts

Connect the Handle to the Outer Tube.1. Position the handle on the outer tube

forward of Handle Positioning Label as shown in Figure 10.

2. Install the handle and barrier bar onto the outer tube with the socket head cap screws and nuts as shown in Figure 10. Tighten the screws nger-tight ONLY at this time.

3. Locate the handle in the best position for operator comfort (usually about 10 inches ahead of the throttle housing).

4. Secure the handle by alternately tight-ening the four socket-head screws in a diagonal or “crisscross” fashion.

8

27008

Handle C2701. Use the 4 mm hex wrench to remove

the lower cap retaining screws from the handlebar bracket. Remove the cap from the bracket, and note the position of the two spacers installed between the bracket halves.See Figure 11.

2. Position the handle on the outer tube forward of Handle Positioning Label as shown in Figure 11. Reassemble the lower cap to the handlebar bracket in the reverse order of disassembly.

3. Locate the handle in the best position for operator comfort.

4. Firmly tighten both lower cap retaining screws.

Handlebar

Spacer

Lower Cap Retaining Screws

Lower Cap

Figure 11

Assembly

Linkage and Ignition Leads C270

CAUTION!Overtightening the throttle body screws can permanently damage the throttle housing!

5. Test the throttle lever for smooth op-eration. If any stiffness or binding are noted, repeat Steps 1–4.

1. Unscrew the two throttle lever cover screws, and then separate the throttle control halves. See Figure 12.

2. Working from the powerhead, route the cable assembly through the rub-ber cable guide and then up through the handlebar grip as shown. Use the 6-inch nylon tie-strap to secure the cable assembly to the handlebar.

3. Insert the throttle cable end into the molded receptacle in the throttle lever, and then lay the throttle cable wire in the molded slot in the throttle body. Connect the two ignition switch wires to the matching terminals in the throttle cover.

NOTE:The two ignition switch wires are inter-changeable on the switch terminals.

4. In the reverse order of removal, reassemble the throttle body on the handlebar.

Figure 12

CoverIgnition Wires

Throttle Cable

7 mm Free Play

Throttle Control

Handlebar Grip

Cable Adjuster

Locknut

Molded Slot

Assembly

6. Test the throttle lever for proper “free play” of approximately 7 mm in the idle position. If necessary, adjustments can be made at the carburetor by loosening the cable locknut and then raising or lowering the cable adjuster as required. See Figure 12.

Handle Positioning Label

9

AssemblyCutting Attachment Shield T270/C270

WARNING!

The line cutter is very sharp. Wear gloves to protect your hands when handling.

To Change Position of Line Cutter.

1. Remove the 2 hex screws with a 4 mm hex wrench. See Figure 13A.

2. Rotate line cutter. See Figure 13A.3. Reinstall the two hex screws and

tighten them securely.

NOTE:Be careful to not lose the 2 nuts in the cut-ting attachment shield, they are not cap-tured.

The line cutter can be positioned in 2 positions to obtain different line length for cutting.

26013

Figure 13

Cutting Attachment

Shield

Outer Tube

Socket-head Cap Screws

Bracket

Shim

Clamp Screw

Shim

Retaining Nut

Cutting Attachment

Shield Mounting Plate

Line Cutter

Figure 13AHex

Screws

Nuts

Install the Cutting Attachment Shield. 1. Insert the cutting attachment shield

between the outer tube and the cutting attachment shield mounting plate.See Figure 13. WARNING!

NEVER operate the unit without the cutting attachment shield installed and tightly secured!

CAUTION!Make sure the clamp screw and retain-ing nut are securely tightened before tightening the four socket-head cap screws.

NOTE:It may be necessary to loosen the retaining nut and clamp screw to adjust cutting attach-ment shield mounting plate.

2. Fit the two shims and the bracket over the outer tube and loosely install the four socket-head cap screws. See Figure 13.

Sub-Shield C270.(when trimmer head is in use)1. Attach the shield extension to the

cutting attachment shield.

WARNING!

NEVER use this machine without sub-shield when using a trimmer head.

CAUTION!Make sure the sub-guard is completely hooked at the hook receiver.

Sub-shieldHook

HookReceiver


T270C270

Shim

Shim

Nut

Upper Clamp

Cutting Attachment

Shield

3. Tighten the four socket-head capscrews to secure the cutting attach-ment shield.

Cutting Attachment Shield Mounting

Plate

Socket-head Cap Screws

10

27017

27016

2701427014

Trimmer Head T270/C270NOTE:

The T/C 270 is shipped with Holder A, the blade retainer, Holder B, and also the shaft bolt and bolt guard installed. The shaft bolt is a LEFT-HAND thread and is removed in a CLOCKWISE ROTATION!

With the gearcase output shaft facing “up” and both holders removed...

Install Holder A

Install Holder B

Holder BHolder

A

Hex Wrench

Hand-tighten trimmer head

Safety Clip

The T270 should now be completely assembled.

Figure 14

Figure 15 Figure 16

Assembly

1. Position Holder A as shown and slide it onto the gearcase shaft.See Figure 14.

2. Install and center the safety clip on the gearcase shaft. See Figure 14.

3. Install Holder B on the gearcase shaft. The machined boss on Holder A must engage with the recess on Holder B. See Figure 14.

4. Rotate the gearshaft and holders until the hole in Holder A aligns with the matching hole in the gearcase ange, and then lock the holder to the gearcase by inserting the long end of the hex wrench through both holes. See Figure 15.

5. Using a counter-clockwise rotation and hand pressure alone, thread and securely tighten the trimmer head into the gearcase shaft. See Figure 16.

6. Remove the hex wrench from the gearcase and holders.

Blade Selection C270Plastic/Nylon Grass/Weed Blades may be used where ever the nylon line head is used. DO NOT use this blade for heavy weeds or brush.8 Tooth Weed/Grass Blade is de-signed for grass, garden debris and thick weeds. DO NOT use this blade for brush or heavy woody growth, 19 mm diameter or larger.80 Tooth Brush Blade is designed for cutting brush and woody growth up to 13 mm diameter.22 Tooth Clearing Blade is designed for dense thickets and saplings up to 64 mm diameter.

WARNING!

Use only cutting attachments recommended by YAMABIKO CORPORATION.

WARNING!

The type of BLADE used MUST be matched to the type and size of mate-rial cut.An improper or dull blade can cause serious personal injury. Blades MUST be sharp. Dull blades increase the chance of kick-out and injury to yourself and bystanders.

11

27018

27019

Brushcutter Blade C270NOTE:

The C270 is shipped with Holder A, the safety clip, Holder B, and also the shaft bolt and bolt guard installed. The shaft bolt is a LEFT-HAND THREAD AND IS REMOVED BY TURNING CLOCKWISE!

With the gearcase output shaft facing “up” and both holders removed...1. Position Holder A as shown and slide it

onto the gearcase shaft.2. Install the safety clip off center on the

gearcase shaft.3. Slide the blade over the safety clip and

onto the ange on Holder A. Lock the blade on the shaft by centering the safety clip as shown.

4. Install Holder B on the gearcase shaft. The machined recess in Holder B must completely surround the safety clip, and both holders must be at against the surface of the blade.

5. Rotate the gearshaft and holders until the hole in Holder A aligns with the matching hole in the gearcase ange. Lock the assembly by inserting the long end of the hex wrench through both holes. See Figure 17.

6. Install the shaft bolt and bolt guard as shown, and then use the small end of the spark plug wrench to securely tighten the shaft bolt in a counter-clock-wise direction. See Figure 18.

7. Remove the hex wrench from the gearcase and holders.

WARNING!

Never operate the brushcutter without the safety clip installed and both hold-ers tightly secured and at against the blade surface!

Install the Safety Clip Off-center

Slip the Cutting Blade in Place

Center the Safety Clip

Shaft Bolt

Bolt Guard

Holder B

Gear Shaft

Holder A

Hex Wrench

Figure 17

Assembly

Safety Clip

Tighten the AssemblyBLADE NOT SHOWN

FOR CLARITY!

Hex Wrench

Install Holder B

Saw Blade

Spark Plug Wrench

Figure 18

The C270 should now be completely assembled.

12

Mixing Fuel WARNING!

Minimize the Risk of Fire!■ STOP engine before refueling.■ ALWAYS allow the engine to cool

before refueling!■ Wipe all spilled fuel and move the

engine at least 10 feet (3 meters) from the fueling point and source before restarting!

■ NEVER start or operate this unit if there is a fuel leak or the carburetor, fuel lines, fuel tank and/or fuel cap are damaged.

■ NEVER smoke or light any res near the engine or fuel source!

■ NEVER place any ammable mate-rial near the engine muf er!

■ NEVER operate the engine without the muf er and spark arrester in good working condition.

1. Place the trimmer on a at, level surface.

2. Clear any dirt or other debris from around the fuel ller cap.

3. Remove the fuel cap, and ll the tank with clean, fresh fuel.

4. Reinstall the fuel ller cap and tighten rmly.

Filling the Fuel Tank

IMPORTANT!

Mix only enough fuel for your immediate needs! If fuel must be stored longer than 30 days and oil with fuel stabilizer is not used, it should rst be treated with a fuel stabilizer such as STA-BIL™.CAUTION!

This engine is designed to operate on a 50:1 mixture consisting of unleaded gasoline and 2-cycle mixing oil only. Use of non-approved mixing oils can lead to excessive carbon deposits.

CAUTION!■ Some types of gasoline contain al-

cohol as an oxygenate. Oxygenated gasoline may cause increased op-erating temperatures. Under certain conditions, alcohol-based gasoline may also reduce the lubricating qualities of some 2-cycle mixing oils.

■ Never use any type of gasoline containing more than 10% alcohol by volume! Generic oils and some outboard oils may not be intended for use in high-performance 2-cycle type engines, and should never be used in your Shindaiwa engine.

■ Use only fresh, clean unleaded gaso-line with a pump octane of 87 or higher.

■ Mix with 50:1 Shindaiwa Premium 2-cycle mixing oil or with an equivalent high quality 2-cycle mixing oil.

Examples of 50:1 mixing quantities■ 1 gallon of gasoline to 2.6 oz. mixing

oil.■ 5 liters of gasoline to 100 ml. mixing oil.

13

27025

Choke Control (closed position)

Starting the Engine

5. While holding the outer tube rmly with one hand, slowly pull the recoil starter handle until resistance is felt, then pull quickly to start the engine. See Figure 22.

1. Slide the ignition switch to the “ON” position. See Figure 19.

2. Set the throttle lever to the “fast idle”; a. Squeeze the throttle lever toward the

handgrip on the shaft tube. b. Depress and hold the throttle lock

button. c. While depressing the throttle lock

button, release the throttle lever. See Figure 19.

3. Press the primer bulb until fuel can be seen owing in the transparent return tube. See Figure 20.

4. Set the choke lever to the CLOSED position if engine is cold. See Figure 21.

Make sure the cutting headis clear of obstructions!

NOTE:Engine ignition is controlled by a two-posi-tion on-off switch mounted on the throttle body. This switch is typically labeled “I” for ON and “O” for OFF.

Figure 21

Figure 22

IMPORTANT! The primer system only pushes fuel through the carburetor. Repeatedly pressing the primer bulb will not ood the engine with fuel.

CAUTION! Do not pull the recoil starter to the end of the rope travel. Pulling the recoil starter to the end of the rope travel can damage the starter.

Brushcutters

Throttle Lock But-ton

Grass TrimmersIGNITION

SWITCH ON

Figure 19

Primer Bulb

Return Tube

Figure 20

27021

WARNING!

Never start the engine from the operating position.

WARNING!

The cutting attachment may rotate when the engine is started!

When the Engine Starts...■ After the engine starts, allow the en-

gine to warm up at idle 2 or 3 minutes before operating the unit.

■ After the engine is warm, pick up the unit and clip on the shoulder strap if so equipped. See page 15.

■ Advancing the throttle makes the cut-ting attachment turn faster; releasing the throttle permits the attachment to stop turning. If the cutting attachment continues to rotate when the engine returns to idle, carburetor idle speed should be adjusted (see page 14).

IMPORTANT!If the engine fails to start after several at-tempts with the choke in the closed posi-tion, the engine may be ooded with fuel. If ooding is suspected, move the choke lever to the open position and repeatedly pull the recoil starter to remove excess fuel and start the engine. If the engine still fails to start, refer to the troubleshooting section of this manual.

6. When the engine starts, slowly move the choke lever to the “OPEN” position. See Figure 23. (If the engine stops af-ter the initial start, close the choke and restart.)

Figure 2327027

Choke Control (open position)

Idle the engine brie y before stopping (about 2 minutes), then slide the ignition switch to the “O” (OFF) position. See Figure 24.

Stopping the Engine

Figure 24

7. Operating the throttle will automatically disengage the fast idle setting.

Brushcutters

IGNITION SWITCH

OFF

27029

Grass Trimmers

14

Adjusting Engine IdleThe engine must return to idle speed whenever the throttle lever is released. Idle speed is adjustable, and must be set low enough to permit the engine clutch to disengage the cutting attachment when the throttle is released.

Adjustment Procedure1. Start the engine, and then allow it to

idle 2-3 minutes until warm.2. If the cutting attachment rotates at

engine idle, reduce idle speed by turn-ing the idle adjustment screw counter clockwise. See Figure 25.

3. If a tachometer is available, the engine idle speed should be nal-adjusted to 3,000 (±250) RPM (min-1).

Non-Emission Compliance Engines

Initial carburetor mixture adjustments on non-emission compliance engines are:

Slow air screw 0-1/2 turn

Main adjusting screw 2 turns ± 1/4

Adjustments may vary because of altitudes and other factors. See your authorized Shindaiwa dealer for correct adjustments.

WARNING!

The cutting attachment must NEVER rotate at engine idle speeds!

NOTE:Carburetor mixture adjustments are preset at the factory and cannot be serviced in the eld.

27030

Idle Adjusting Screw

(All Units)

Figure 25

Slow Air Screw

(Non-Emission Compliance Units Only)

Main Carburetor Adjustment Screw

(Non-Emission Compliance Units Only)

NEVER operate the unit with the cut-ting attachment shield or other protective devices (harness, ignition switch, blade retention clip, etc.) removed!

WARNING!

A cutting attachment shield or other protective device is no guarantee of protection against thrown objects. YOU MUST ALWAYS GUARD AGAINST FLYING DEBRIS!

Check Unit ConditionUse only authorized Shindaiwa parts and accessories with your Shindaiwa trimmer or brushcutter. Do not make modi cations to the unit without the written approval of YAMABIKO CORPORATION.ALWAYS make sure the cutting attach-ment is properly installed and rmly tight-ened before operation.NEVER use a cracked or warped cutting attachment: replace it with a serviceable one.ALWAYS make sure the cutting attach-ment ts properly into the appropriate cutter holder. If a properly installed attach-ment vibrates, replace the attachment with a new one and re-check.

ALWAYS stop the engine immediately and check for damage if you strike a foreign object or if the unit becomes tangled. Do not operate with broken or damaged equipment.NEVER allow the engine to run at high RPM’s without a load. Doing so could damage the engine.NEVER operate a unit with worn or dam-aged fasteners or attachment holders.NEVER cut with dull blades. Doing so will increase the risk of blade thrust and may also damage your equipment.

15

Hold the grass trimmer so the trimmer head is angled slightly into the area to be cut. To ensure maxi-mum trimmer-line service life, cut

only with the tip of the trimmer line. Cut grass by swinging the machine’s trimmer head from right to left. Keep the trimmer head horizontal. See Figure 28.

EdgingTilt the handle about 100° to the right (from horizontal) and move forward, holding the trimmer vertical. See Figure 29.

Shoulder Strap

Shoulder Strap recommended

for use with grass trimmers

NOTE:Although a shoulder strap is not required for use with a trimmer head, a shoulder strap can increase operator comfort during extended periods of operation.

WARNING!

Always wear a shoulder strap when operating this unit with a blade. A shoulder strap is also recommend when using trimmer line.

IMPORTANT!Adjust the shoulder strap or harness so the shoulder pad rests comfortably on the off-side shoulder and the cutting path of the cutting attachment is parallel to the ground. Make sure all hooks and adjust-ment devices are secure.

C270 or using a T270 with a Blade

T270 with a Trimmer Head

27032AFigure 26

Figure 27

27033

27034

Cutting Grass—Units Equipped with a Trimmer HeadYour Shindaiwa T270 Grass Trimmer may be equipped with one of several Shindaiwa trimmer head models, each with features for speci c applications and/or operational requirements.

CAUTION!Do not push the rotating line into trees, wire fences or any material that could tangle or break line ends.

■ Flail. This device, designed for clearing weeds and light brush, features three nylon blades attached to the head by pivots.

CAUTION!Operation at low RPM can lead to premature clutch failure.

Trimming and Mowing Grass

Figure 28

Figure 29

NOTE:A grass trimmer head can also be tted to the Shindaiwa C270 Brushcutter.

For proper operation, always refer to the instructions accompanying the trimmer head being used. Available trimmer head styles include:■ Semi-automatic. Trimmer line is

indexed when the operator taps the trimmer head on the ground during operation.

■ Manual. The operator indexes line manually while the grass trimmer is stopped.

■ Fixed. The operator must stop the ma-chine and add new lengths of trimmer line manually.

Engine Operating SpeedsOperate the unit at full throttle while cut-ting grass.

16

27036

WARNING!

When making vertical cuts, never allow the blade to exceed waist height.

WARNING!

■ When cutting wood with a blade, feed the blade slowly never strike or “slam” the spinning blade against the wood.

■ DO NOT use 2-tooth or non-Shindaiwa approved 4-tooth cutting blades with Shindaiwa trimmers and brushcutters.

The blade rotates counter-clockwise. For best performance and to minimize being struck by debris, move the blade from right to left while advancing on your work.Position the blade so cuts are made between the blade’s 8 o’clock and 10 o’clock positions (as viewed from above). DO NOT cut between the 10 o’clock and 5 o’clock positions. See Figure 30.

Cut on the left side of the blade. KEEP

YOUR BODY OUTSIDE THE

PATH OF BLADE ROTATION

Hold the brushcutter with the blade at a 90° angle to the ground so the blade’s bottom edge rotates toward the operator. Move the blade from top to bottom through the cut, and cut only with the bot-tom edge of the blade. See Figure 31.

Figure 31

Vertical Cuts

Blade Thrust‘Blade thrust’ is a sudden sideways or backward motion of the brushcutter. Such motion may occur when the blade jams or catches on an object such as a sapling tree or tree stump. BE CONSTANTLY ALERT FOR BLADE THRUST AND GUARD AGAINST ITS EFFECTS!

Brushcutter HandlebarA brushcutter’s handlebar or barrier bar helps prevent the operator from mov-ing forward or the unit moving rearward; thus preventing inadvertent bodily contact with the blade. ALWAYS KEEP THE HANDLEBAR OR BARRIER BAR SECURELY IN PLACE ON THE UNIT!

Brushcutter Shoulder StrapA shoulder strap provides additional protection against blade thrust. Plus, a shoulder strap gives signi cant support and comfort to help ensure safe and ef- cient operation.When operating a trimmer or brushcutter, make sure both the handle and shoul-der strap are adjusted to the size of the operator using the unit.

Using A Brushcutter Blade C270

WARNING!

■ Before working with a blade-equipped unit, always inspect and clean the area of objects that could interfere with or damage the blade.

■ Never use a blade near sidewalks, fence posts, buildings or other objects that could cause injury or damage.

■ Never use a blade for purposes other than those for which it was designed.

■ Whenever you strike a hard ob-ject with a blade, always stop the brushcutter and carefully inspect the blade for damage. NEVER OPERATE THE BRUSHCUTTER WITH A DAMAGED BLADE!

■ A blade-equipped unit must be equipped with a bicycle-type handle-bar or barrier bar as well as a har-ness or shoulder strap.

■ Always make sure the cutting at-tachment shield is properly installed before operating the unit.

Engine Operating SpeedsOperate the unit at full throttle while cut-ting. Best fuel ef ciency is obtained by releasing the throttle when swinging back after a cut.■ To prevent possible engine damage, do

not allow the brushcutter to run at high speeds without a load.

■ Avoid operating the engine at low speeds. Doing so can lead to rapid clutch wear. In addition, slow-speed op-eration tends to cause grass and debris to wrap around the cutting head.

Figure 30

DO NOT CUT

TenO'clock

OK To Cut

FiveO'clock

BladeRotation

EightO'clock

17

Daily Maintenance

27037

Prior to each work day, perform the following:

Remove and clean the element

10-hour MaintenanceEvery 10-Hours of operation (more frequently in dusty or dirty conditions):■ Remove the air cleaner element and

clean it thoroughly with soap and water. Rinse and squeeze out excess water and reassemble the element to the carburetor.

CAUTION!Do not operate the unit if the air cleaner or element is damaged, or if the element is wet.

Figure 32

■ Check for loose or missing screws or components. Make sure the cutting at-tachment is securely fastened.

■ Check the unit for leaking fuel or grease.

Maintenance

WARNING!

Non-standard parts may not operate properly with your unit and may cause damage and lead to personal injury.

Muf erThis unit must never be operated with a faulty or missing spark arrester or muf- er. Make sure the muf er is well secured and in good condition. A worn or dam-aged muf er is a re hazard and may also cause hearing loss.

Spark PlugKeep the spark plug and wire connections tight and clean.

FastenersMake sure nuts, bolts, and screws (except carburetor adjusting screws) are tight.

WARNING!

■ Never repair a damaged blade by welding, straightening, or by modify-ing its shape. An altered blade may break during operation, resulting in serious personal injury.

■ DO NOT use 2-tooth or non-Shindaiwa approved 4-tooth cutting blades on Shindaiwa trimmers or brushcutters.

■ Blades are not interchangeable between Shindaiwa edgers and trim-mer/brushcutter models. Operating any unit with a blade or attachment not approved for that unit can be hazardous and may cause serious injury.

WARNING!

Before performing any maintenance, repair, or cleaning work on your unit, make sure the engine and cutting attachment are completely stopped. Disconnect the spark plug wire before performing service or maintenance work.

IMPORTANT! MAINTENANCE, REPLACEMENT OR REPAIR OF EMISSION CONTROL DEVICES AND SYSTEMS MAY BE P E R F O R M E D B Y A N Y R E PA I R ESTABLISHMENT OR INDIVIDUAL; HOWEVER, WARRANTY REPAIRS MUST BE PERFORMED BY A DEALER OR SERVICE CENTER AUTHORIZED BY YAMABIKO CORPORATION THE USE OF PARTS THAT ARE NOT EQUIVALENT IN PERFORMANCE AND DURABILITY TO AUTHORIZED PARTS MAY IMPAIR THE EFFECTIVENESS OF THE EMISSION CONTROL SYSTEM AND MAY HAVE A BEARING ON THE OUTCOME OF A WARRANTY CLAIM.

NOTE:Using non-standard replacement parts could invalidate your Shindaiwa warranty.

BladesKeep blades sharp and check blade condition frequently. If a blade’s perfor-mance changes suddenly, stop the engine and check the blade for cracks or other damage. Replace a damaged blade IMMEDIATELY!

■ Remove any dirt and debris from the engine, check the cooling ns and air cleaner for clogging, and clean them as necessary.

■ Carefully remove any accumulations of dirt or debris from the muf er and fuel tank. Dirt build-up in these areas can lead to engine overheating, premature wear, or re.

18

27040

27031

HookedWire

10/15-hour MaintenanceEvery 10 to 15 hours of operation:■ Remove and clean the spark plug.

Adjust the spark plug electrode gap to 0.024 inch (0.6 mm). If the plug must be replaced, use only a NGK BMR6A.

CAUTION!Before removing the spark plug, clean the area around the plug to prevent dirt and dust from getting into the internal engine parts

Clean the spark plug and check the gap at

the electrode.

27038

0.024" (0.6 mm)

NGKBMR6A

Figure 33

50-hour MaintenanceEvery 50 hours of operation (more frequently in dusty or dirty conditions):■ Remove and clean the cylinder cover

and clean grass and dirt from the cylin-der ns.

■ Remove the cutting attachment and the gear shaft collar, and force new grease into the gearcase until the old grease has been pushed out. Use only lithium-base grease (such as Shindaiwa 13-57 Gearcase Lubricant). See Figure 34.

27039

New Grease OldGrease

Gear Shaft Collar

■ Use a hooked wire to extract the fuel lter from inside the fuel tank. Remove and replace the lter element. Before reinstalling the lter, inspect the condi-tion of the fuel line. If damage or dete-rioration are noted, the 270 unit should be removed from service until you can consult with an authorized servicing dealer. See Figure 35.

Figure 34

Figure 35

CAUTION!Make sure you do not pierce the fuel line with the end of the hooked wire. The line is delicate and can be damaged easily.

Hard starting or a gradual loss of perfor-mance can be caused by carbon deposits lodged in the muf er’s spark arrester screen. In such cases, performance can usu-ally be restored by removing the spark arrester screen and giving it a thorough cleaning with a stiff bristle brush.If carbon deposits are severe or if no per-formance improvement is noted, your T/C 270 should be returned to your Shindaiwa dealer for inspection.

WARNING!

Never operate this unit with a damaged or missing muf er or spark arrester! Operating with missing or damaged ex-haust components is a re hazard and may also damage your hearing.

Muffl er

Arrester Retaining

Screw

Spark Arrester

Muf er Maintenance

Figure 36

19

Long Term StorageWhenever the unit will not be used for 30 days or longer, use the following pro-cedures to prepare it for storage:■ Clean external parts thoroughly and

apply a light coating of oil to all metal surfaces.

■ Drain all the fuel from the fuel tank.

IMPORTANT!All stored fuels should be stabilized with a fuel stabilizer such as STA-BIL™, if oil with fuel stabilizer is not used.

To remove the remaining fuel from the fuel lines and carburetor and with the fuel drained from the fuel tank. 1. Prime the primer bulb until no more fuel

is passing through.2. Start and run the engine until stops

running.3. Repeat steps 1 and 2 until the engine

will no longer start.

■ Remove the spark plug and pour about 1/4 ounce of 2-cycle mixing oil into the cylinder through the spark plug hole. Slowly pull the recoil starter 2 or 3 times so oil will evenly coat the interior of the engine. Reinstall the spark plug.

■ Before storing the unit, repair or re-place any worn or damaged parts.

■ Remove the air cleaner element from the carburetor and clean it thoroughly with soap and water. Let dry before reinstalling the element.

■ Store the unit in a clean, dust-free area.

CAUTION!Gasoline stored in the carburetor for extended periods can cause hard start-ing, and could also lead to increased service and maintenance costs.

27042

300

27041

When the blade’s cutting edges become slightly dull, they can be resharpened with a few strokes of a le.In order to keep the blade in balance, all cutting edges must be sharpened equally.

Round File

Filing Direction

Blade Sharpening

Shindaiwa Tornado™ BladeTo sharpen the cutters on a Shindaiwa Tornado Blade, use a 7/32-inch round le. File the leading edge of each tooth to a razor edge. The top plate of each tooth should angle back 30°. See Figure 37.

WARNING!

Sharpen the cutting teeth only. DO NOT alter the contour of the blade in any way.

Multiple-tooth Circular BladeUse a round le to maintain a radius of 0.04 to 0.06” (1 to 1.5 mm) at the base of each tooth. Cutting edges must be offset equally on each side. See Figure 38.

Round File

Filing Direction

Figure 37

Figure 38

20

NO

Troubleshooting Guide

Does the engine crank?

Good compression?

Does the tank contain fresh fuel of the proper grade?

Is fuel visible and moving in the return line when priming?

Is there spark at the spark plug wire terminal?

Check the spark plug.

Faulty recoil starter.

Fluid in the crankcase.

Internal damage.

Loose spark plug.

Excess wear on cylinder, piston, rings.

Fuel incorrect, stale, or contaminated; mixture incorrect.

Check for clogged fuel lter and/or vent.

The ignition switch is in “O” (OFF) position.

Shorted ignition ground.

Faulty ignition unit.

If the plug is wet, excess fuel may be in the cylinder.

The plug is fouled or improperly gapped.

The plug is damaged internally or of the wrong size.

Consult with an authorized servicing dealer.

Tighten and re-test.


Re ll with fresh, clean unleaded gasoline with a pump octane of 87 or higher mixed with 50:1 Shindaiwa Premium 2-cycle mixing oil or with an equivalent high quality 2-cycle mixing oil.

Clean as required. Restart.

Move switch to “I” (ON) position and re-start.


Crank the engine with the plug removed, reinstall the plug, and restart.

Clean and regap the plug to 0.024 inch (0.6 mm). Restart.

Replace the spark plug with a NGK BMR6A or equivalent spark plug of the correct heat range. Adjust the spark plug electrode gap 0.024 inch (0.6 mm).

NO

YES

What To Check Possible Cause RemedyENGINE DOES NOT START

NO

YESNO

YES

YESNO

YES

Is the engine overheating?

Engine is rough at all speeds. May also have black smoke and/or unburned fuel at the exhaust.

Operator is overworking the unit.

Carburetor mixture is too lean.

Improper fuel ratio.

Fan, fan cover, cylinder ns dirty or damaged.

Carbon deposits on the piston or in the muf er.

Clogged air cleaner element.

Loose or damaged spark plug.

Air leakage or clogged fuel line.

Water in the fuel.

Piston seizure.

Faulty carburetor and/or diaphragm.

Overheating condition.

Improper fuel.

Carbon deposits in the combustion chamber.

Shorten trimmer line. Cut at a slower rate.


Re ll with fresh, clean unleaded gasoline with a pump octane of 87 or higher mixed with 50:1 Shindaiwa Premium 2-cycle mixing oil or with an equivalent high quality 2-cycle mixing oil.

Clean, repair or replace as necessary.


Service the air cleaner.

Tighten or replace.Replace the spark plug with a NGK BMR6A or equivalent spark plug of the correct heat range. Adjust the spark plug electrode gap 0.024 inch (0.6 mm).

Repair or replace fuel lter and/or fuel line.

Replace the fuel. See page 12.


See above.

Check fuel octane rating; check for presence of alcohol in the fuel (page 12). Refuel as necessary.


What To Check Possible Cause RemedyLOW POWER OUTPUT

Engine is knocking.

21

Troubleshooting Guide (continued)ADDITIONAL PROBLEMS

Poor acceleration.Clogged air cleaner element.

Clogged fuel lter.

Carburetor mixture too lean.

Idle speed set too low.

Switch turned off.

Fuel tank empty.

Clogged fuel lter.

Water in the fuel.

Shorted spark plug or loose terminal.

Ignition failure.

Piston seizure.

Ground (stop) wire is disconnected, or switch is defective.

Overheating due to incorrect spark plug.

Overheated engine

Engine idle too high.

Broken clutch spring or worn clutch spring boss.

Warped or damaged cutting attachment.

Bent main shaft/worn or damaged bushings.

Clean the air cleaner element.

Replace the fuel lter.


Adjust: 3,000 (±250) RPM (min-1).

Reset the switch and re-start.

Refuel. See page 12.

Replace fuel lter.

Drain and re ll with fresh, clean unleaded gasoline with a pump octane of 87 or higher mixed with 50:1 Shindaiwa Premium 2-cycle mixing oil or with an equivalent high quality 2-cycle mixing oil.

Clean and replace spark plug, tighten the terminal.


Test and replace as required.

Replace the spark plug with a NGK BMR6A or equivalent spark plug of the correct heat range. Adjust the spark plug electrode gap 0.024 inch (0.6 mm).

Idle engine until cool. Refer to page 20 (overheated engine).

Set idle: 3,000 (±250) RPM (min-1).

Replace spring/shoes as required, check idle speed.

Inspect and repair tool as required.

Inspect and replace as necessary.

Symptom Possible Cause Remedy

Engine stops abruptly.

Engine dif cult to shut off.

Excessive vibration.

Cutting attachment rotates at engine idle.

22

NOTES:

23

NOTES:

7-2 SUEHIROCHO 1-CHOME, OHME, TOKYO 198-8760, JAPANPHONE: 81-428-32-6118. FAX: 81-428-32-6145.

© 2012

GB X750- 015 93 2X750282-020 2

Printed in Japan1301A 1048 ES

shindaiwa c270 & t270 user manual

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