Shindaiwa 452s User Manual [nl]

English...................1

French.............FR_1

Italian...............IT_1

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SHINDAIWA OWNER’S/OPERATOR’S MANUAL

446s CHAIN SAW 452s CHAIN SAW

WARNING!

• Read this manual and familiarize yourself with its contents.

• This machine is designed for cutting wood and timber. Use only for designated purpose.

• Minimize the risk of injury to yourself and others.

• Always wear eye protection when operating this machine.

• Do not operate or service this machine unless you clearly understand this manual.

• Keep this manual available at all times so that you can reference it whenever you

have a question about the use of this unit.

Part Number 69025-94313 Rev. 1/07

Introductions

The Shindaiwa 446s/452s chain saw is designed and built to deliver superior performance and reliability without compromise to quality, comfort, safety, or durability. Shindaiwa high performance engines represent the leading edge of 2-cycle engine technology, and deliver exceptionally high power at remarkably low displacement and weight. As a professional owner/operator, you’ll soon discover why Shindaiwa is simply in a class by itself.

IMPORTANT!

The information contained in this manual describes units available at the time of production. While every attempt has been made to give you the very latest information about your Shindaiwa 446s/452s chain saw, there may be some differences between your saw and what is described here. Shindaiwa Inc. reserves the right to make changes in production without prior notice, and without obligation to make alterations to units previously manufactured.

Attention Statements

Throughout this manual are special “Attention Statements”.

WARNING!

A statement preceded by the

triangular attention symbol and the word “WARNING” contains information that should be acted upon to prevent serious bodily injury.

CAUTION!

A statement preceded by the word “CAUTION” contains information that should be acted upon to prevent mechanical damage.

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.

Read and follow the Operator’s Manual. Failure to do so could result in serious injury.

Beware of Kickback! Kickback can occur whenever the tip of the guide bar touches an object while the saw is operating. Kickback may force the bar up and back toward the operator with a lightning-fast reaction!

Wear eye and hearing protection at all times during the operation of this unit.

Sound Power Level (measured in accordance with 2000/14/EC).

IMPORTANT!

All chain saw service, other than the items listed in the owner’s manual maintenance instructions, should be performed by trained Shindaiwa chain saw service personnel. (For example, if improper tools are used to remove the

ywheel, or if an improper tool is used to hold the ywheel in order to remove the clutch, structural damage to the ywheel

could occur and could subsequently

cause the ywheel to burst.)

Contents

PAGE

Attention Statements ........................... 2

Labels and Symbols ............................. 5

Unit Description ................................... 6

Technical Speciﬁcations ...................... 6

Installing and Adjusting the

Guide Bar and Saw Chain ................... 7

Mixing/Filling Fuel ............................. 8

Bar Oil ................................................... 8

Starting the Engine .............................. 9

Stopping the Engine .......................... 10

Carburetor Adjustments .................... 10

Chain Brake ........................................ 11

Cutting with the Saw .......................... 12

Maintenance

....................................... 14

Saw Chain Performance .................... 16

Troubleshooting

................................. 17

Declaration of Conformity ................. 19

Kickback Safety

This saw is equipped with the following safety equipment:

1. Inertia chain brake. n Activating the chain brake tightens

a brake band around the chain drive mechanism, stopping all chain rotation. When sudden kickback occurs, the chain break is automatically actuated and the chain stops instantly. The chain brake can also be activated manually.

WARNING!

To reduce the risk of

kickback, all of the above devices must be properly installed and in good repair!

WARNING!

Brake engagement and

operation depend upon proper chain break condition! For proper chain brake testing and adjustment procedures, refer to Page 11.

WARNING!

Kickback can happen lightning-fast!

Kickback Safety Precautions

Either of the following reactions could cause you to lose control of your saw while cutting, possibly resulting in serious injury!

1. Kickback can occur whenever the guide bar nose or tip contact an object while the saw is running. Tip contact may cause the guide bar to kick upward and back toward the operator with a lightning-fast reaction!

2. Pinching the saw along the top of the guide bar may push the guide bar rapidly back toward the operator! Pinching can occur whenever wood closes in around the moving chain!

Do not rely exclusively on the safety devices incorporated with your saw. As a chain saw user, observing the following steps will also help you to avoid accident or injury on the job:

n Sudden surprise can contribute to ac-

cidents! With a basic understanding of kickback, you can reduce or eliminate the element of surprise.

n Clear obstructions from the work

area before cutting. Remove any log, branch, or other obstruction that might contact the guide bar tip during cutting operations.

n Grip the saw ﬁrmly with your right

hand on the rear handle and your left hand on the front handle, thumbs and ﬁngers encircling the handles whenever the saw is running. Don’t let go: A ﬁrm grip will help you to reduce kickback while maintaining control of the saw.

n Accelerate the saw before the

chain contacts the work area, and always maintain high engine speeds throughout the cut.

n Do not overreach or attempt to cut

above shoulder height.

n Follow the manufacturer’s

instructions for sharpening and maintenance of the saw chain.

n Use only the replacement bar and

chain combinations speciﬁed by the manufacturer.

n Never stand directly over the saw

while cutting!

n Use low-kickback chain, chain brakes,

or special guide bars to reduce the risk of kickback.

Additional Safety Precautions

WARNING!

Never operate this chain saw with

one hand! One-handed operation could cause you to lose control, causing serious injury to yourself or others! A chain saw is intended for two-handed use.

n Wear safety footwear, snug-ﬁtting

clothing, protective gloves, and eye, hearing, and head-protection devices while working with this chain saw.

n Do not allow other persons to be

near the chain saw when starting or running the chain saw. Keep bystanders and animals out of the work area.

n Never allow young children or any

person unfamiliar with chain saws to operate this saw!

n Clear the work area before using

the saw. Never start cutting until you are sure you have a secure footing and have planned a retreat path from the falling tree.

n Before starting the saw engine,

make sure nothing is touching the saw chain.

n Keep all parts of your body away

from the saw chain whenever the engine is running!

n Stop the engine before carrying

the saw. Carry the saw with the engine stopped, the guide bar and saw chain pointing to the rear, and the engine mufﬂer away from your body.

n Stop the engine before setting the

chain saw down.

n Install the appropriate guide-bar

chain cover before transporting the saw.

n Never operate this chain saw

if you are fatigued or if you are under the inﬂuence of alcohol, drugs, or any other substance that could affect your ability or judgement.

Never operate a saw that is

damaged, improperly adjusted, or not completely and securely assembled.

Do not use this saw if the saw

chain continues to move after the throttle control trigger is released.

n Use only Shindaiwa-recommended

parts when repairing or servicing this saw.

n Use extra care when cutting a

limb that is under tension! A limb under tension could spring back suddenly, causing you to lose control of the saw!

n Use extreme caution when cutting

smaller brush and saplings! Smalldiameter material may catch in the chain and be whipped toward you or pull you off balance, causing you to lose control of the saw!

n Operate the saw only in a well

ventilated area. Exhaust gases and lubrication oil mist can cause serious injury or death.

n Keep the saw handles dry, clean

and free of oil or fuel mixture.

n Never operate any saw while

in a tree unless you have been speciﬁcally trained to do so!

n Never perform service or repairs

to this saw unless you are speciﬁcally trained and equipped to do so!

n Improper maintenance, use of

nonconforming replacement components, or the removal of safety devices, such as the chain brake or any of the chain brake components, could result in serious injury.

n Never allow any part of your

body near the clutch cover of an operating saw.

n Never operate a saw with

damaged or missing anti-vibration cushions. Long-term exposure to vibration can damage your hands, in particular vascular, bone or joint, neurological or muscular disorders. For lowest vibration, replace damaged mounts immediately. Mounts hardened due to age or weathering should also be replaced.

n Always maintain a ﬁrm footing

while operating this saw! Ladders and other temporary platforms can shift unexpectedly, and are not recommended!

Do not operate this or any other

chain saw with the mufﬂer removed.

All chain saw service, other

than items listed in the owner’s maintenance instructions, should be performed by trained Shindaiwa chain saw service personnel.

Prolonged exposure to excessive

noise is fatiguing and could lead to impaired hearing. The use of proper ear protection can reduce this potential hazard.

Safety Labels

IMPORTANT!

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

Bar and Chain Oil Tank Fuel Tank Choke Chain Brake Function

Carburetor Adjustment

Idle Speed

Unit Description

IMPORTANT!

The operational procedures described in this manual are intended to help you get the most from this unit and also to protect you and others from harm. These procedures are general guidelines only, and are not intended to replace any additional safety rules or laws that may be in force in your area. If you have any questions regarding your Shindaiwa chain saw, or if you do not understand something in this manual, your Shindaiwa dealer will be glad to assist you. For additional information, you may also contact Shindaiwa Inc. at the address printed on the back of this manual.

Tools Included

Chain Cover

Chain

Guide Bar

Bar and Chain

Oil Filler Cap

Brake Lever

Hand Guard

Front Handle

Starter Handle

Air Cleaner Cover

Fuel Cap

Ignition

Switch

Choke

Throttle Lockout

Throttle

Trigger

n Spark plug/13 mm socket wrench

Rear Handle

Mufﬂer

(Scrench)

WARNING!

Spike

Do not make unauthorized

modications to this saw,

guide bar, or chain!

Rear Hand

IMPORTANT!

The terms “left”, “left-hand”, and

Guard

Clutch Cover

Bar Nuts

Chain Catcher

“LH”; “right”, “right-hand”, and “RH”; “front” and “rear” refer to directions as viewed by the operator during normal operation.

Using the accompanying illustrations as a guide, familiarize yourself with your machine and its various components.

Understanding your machine helps ensure top performance, long service life, and safer operation.

Specications

Model ............................................................................................................ 446s | 452s

Displacement ................................................................................................ 44.6cc (2.72 cu.in.) | 45.2cc (2.75 cu.in.)

Maximum Power Output *1) ...................................................................... 2.19 kW

Recommended Maximum Engine Speed *2) ........................................... 13,500 min

Recommended Engine Speed at Idling...................................................... 2,800 min

Engine Type ................................................................................................. 2-cycle gas engine, vertical-cylinder, air cooled

Cooling System ............................................................................................ Forced air

Carburetor .................................................................................................... Walbro WT 767 | WT 864

Fuel. ............................................................................................................... Gasoline-oil mixture, 50:1 with Shindaiwa 2-Cycle Engine Oil

Starting .......................................................................................................... Recoil starter

Ignition .......................................................................................................... Electronic ignition system

Spark Plug ..................................................................................................... NGK BPMR7A

Power Transmission. ................................................................................... Automatic centrifugal clutch

Handle ........................................................................................................... Anti-vibration

Safety Devices .............................................................................................. In conformity with CE mark regulations

Chain Lubrication ......................................................................................... Automatic adjustable ﬂow rate

Chain Oil ....................................................................................................... Shindaiwa Premium Bar & Chain Oil (or equivalent)

Number of Rim Tooth .................................................................................. 7

Speciﬁed Pitch of Drive Sprocket ............................................................... .325”

Fuel Tank Capacity ...................................................................................... 540ml

Oil Tank Capacity ......................................................................................... 270ml

Weight (less bar & chain) ........................................................................... 4.5 kg

Sound Power Level ...................................................................................... 110 dB (A) *3) | 113 dB(A) *6)

Sound Pressure Level .................................................................................. 101 dB (A) *4) | 103 dB(A) *6)

Vibration Level (Front Handle) .................................................................. 3.9 m/s2 *5) | 5.6 m/s2 *7)

Vibration Level (Rear Handle) .................................................................... 3.9 m/s2 *5) | 7.2 m/s2 *7)

Recommended Bar Size............................................................................... 33cm (13”), 38cm (15”), 40cm (16”), 45cm (18”)

Recommended Bar Type............................................................................. Sprocket Nose Bar

Recommended Chain Type......................................................................... Blount Type 21BP, pitch .325, gauge .058”

2.19 kW

-1

*1) measured in accordance with ISO 7293 *2) with bar and chain *3) measured in accordance with ISO 9207

*4) measured in accordance with ISO 7182 *5) measured in accordance with ISO 7505

*6) measured in accordance with ISO 22868 *7) measured in accordance with ISO 22867

Installing and Adjusting the Guide Bar and Saw Chain

NOTE:

For longest chain life, place new or replacement chain loops in oil and soak overnight before installation.

IMPORTANT!

The chain brake must be completely disengaged before removing or installing the clutch cover.

1. Use the socket wrench to remove the

clutch cover nut(s) in a counterclockwise rotation.

2. Remove the clutch cover.

3. Remove and discard the packing

spacer.

4. Place the guide bar over the guide bar

stud(s) and chain tensioner pin.

CAUTION!

Failure to align the guide bar and chain tensioner pin can cause serious damage to the clutch cover, guide bar, tensioner pin, and/or engine crankcase!

WARNING!

The cutters on the saw chain are very sharp!

Always wear gloves when handling.

Sprocket

Studs

Clutch Cover

Guide Bar

Spacer (discard)

Nut

5. Install the chain loop over the drive

sprocket, and then align the chain drive links within the guide bar groove. Verify that the cutters are properly oriented with cutter edges facing forward on top of bar. If chain installation is difﬁcult or if the chain appears too tight, refer to step 8.

6. Install the clutch cover over the bar

stud(s) and install the bar nut(s) ﬁnger tight.

WARNING!

Never operate this saw without the clutch cover installed.

IMPORTANT!

Proper chain adjustment is essential for maximum performance, chain life, and operator safety. Always inspect chain tension before operating this saw!

7. Place the saw on a ﬂat surface and lift

the bar nose slightly.

8. To adjust chain tension:

n Turn the chain tension screw clock-

wise to tighten the chain.

n Turn the chain tension screw

counter-clockwise to loosen the chain.

n While lifting the bar nose, tighten or

loosen the adjusting screw until the chain at mid-bar on the bottom of the bar just contacts the guide bar rails.

9. Tighten the bar nut(s). The saw chain tension is correct when there is not any slack on the bottom of the guide bar but the saw chain can move freely.

Chain Adjusting

Screw

Turn Clockwise to Tighten the Chain

(extend the guide

bar)

Re-Adjusting the Saw Chain

1. To adjust chain tension in the ﬁeld: Stop the saw and allow the guide bar and chain to cool. Loosen both bar nuts approximately 1-turn each, and then perform steps 7-9 above. Never operate the saw with a loose chain!

Insert Chain Tensioner

Pin into the Hole

Saw Chain

3 - 3.5 mm

Max.

Check the gap between chain side

plates and the bar rail

WARNING!

Inspect chain tension often

during operation, especially when breaking in a new chain. A loose saw chain can jump from the guide bar, possibly causing serious personal injury!

Mixing Fuel/Filling With Fuel

WARNING!

Minimize the risk of re,

burns, and personal injury!

STOP engine before refueling.

n ALWAYS allow the engine to cool

before refueling!

ALWAYS open the fuel cap slow-

ly to allow any pressure build-up in the tank to release fuel vapor slowly.

Avoid overlling and wipe up all

spilled fuel. Move the engine at least 3 meters from the fueling point, storage area and other readily ammable materials before restarting!

ALWAYS inspect the unit for fuel

leaks before each use. During

each rell, make sure there are

no fuel leaks around the fuel cap and/or tank. If a fuel leak is evident, stop using the unit immediately. Fuel leaks must be repaired before using the unit.

NEVER smoke or light any res

near the engine or fuel source!

NEVER place any ammable

material near the engine mufer!

NEVER operate the engine with-

out the mufer in good working

condition.

Shindaiwa high-performance 2-cycle engines are designed to operate on a 50:1 mixture of unleaded gasoline and 2-cycle mixing oil. Using a fuel mixture less than 50:1 ratio (such as 80:1 or

100:1) can cause catastrophic engine

failure!

1. Use only fresh, clean unleaded gasoline with a pump octane rating of 87 or higher.

2. Mix fuel with a 2-cycle mixing oil designed for use in high-performance 2-cycle air-cooled engines.

CAUTION!

n Some types of gasoline contain

n Generic mixing oil and marine

IMPORTANT!

alcohol. Never use any type of gasoline containing more than 10% alcohol by volume! More than 10% alcohol by volume may affect the lubricating qualities of 2-cycle mixing oils reducing engine life and/or causing engine failure.

engine oil may not be intended for use in high-performance 2cycle engines and should never be used in Shindaiwa engines. Mixing oils not intended for use in high-performance air-cooled 2-cycle engines can cause excessive carbon deposits, reduce engine life and/or cause engine failure.

Gasoline 2-cycle mixing oil liters milliliters

2.5 l .............................. 50 ml

5 l ................................100 ml

10 l ..............................200 ml

20 l ..............................400 ml

3. Place the saw on a hard surface with the fuel cap up and wipe any chips or debris from around the fuel cap.

4. Remove the fuel cap and ﬁll the tank with clean, fresh 2-cycle fuel mix. Avoid overﬁlling and fuel spillage.

5. Wipe any spilled fuel and move the saw at least 3 meters from the fueling point before starting the engine.

Bar Oil / Filling With Oil

Oil Requirements

n When available, use Shindaiwa Pre-

mium bar and chain oil.

n When Shindaiwa oil is not available,

use a premium 30-weight oil speciﬁcally blended for bar and chain lubrication.

n For cold weather operation, bar oil

may be thinned by mixing with clean kerosene at a ratio of 1:1.

Filling the Oil Reservoir

n Place the saw on its side (clutch

cover down), and wipe any chips or debris from around the oil cap.

n Remove the oil cap at the front of the

saw.

n Fill the oil reservoir with bar and

chain oil and replace the cap.

n Wipe spilled oil from handles and

controls before starting the saw.

CAUTION!

Proper lubrication is critical to the performance and service life of your saw’s oil pump, guide bar, and saw chain! Always use a high quality lubricating oil designed for saw chain lubrication! Never use dirty or reclaimed oil!

Oil Pump Adjustment

Guide bar and saw chain lubrication is automatically provided by an adjustable-rate oil pump designed to operate whenever the clutch drum rotates. A temporary increase in oil ﬂow rate is often desirable when cutting hardwoods or large-diameter softwoods, and can be provided as follows:

1. Stop the engine and verify that the engine stop switch is in the “OFF” position.

2. Place the saw on its side, with the clutch cover facing up.

Counter-Clockwise

to Increase Oil Flow

3. Use a screwdriver turn the oil ﬂow rate adjustment screw in the desired direction.

n Clockwise to decrease lubrication. n Counter-clockwise to increase

lubrication.

Starting the Engine

WARNING!

This chain saw is equipped

with a fast idle feature for ease of engine starting. When the fast idle is set, the saw chain will rotate when the engine starts! Rotating saw chain can cause serious injury. Clear a safe work area before starting the engine.

NOTE:

This engine ignition system is controlled by a two-position “ON-OFF” switch labeled “I” for ON and “O” for OFF located near the rear handle.

IMPORTANT!

This chain saw is equipped with a throttle trigger lock out system designed to prevent unintended throttle activation. This system requires the operator to

rst depress the throttle lock out lever

on top of the rear handle to release the trigger from the engine idle position.

STOP

Switch

Pull Choke

4. Place the saw upright on the ground.

5. Secure the saw by stepping on the inside of the rear handle with the right foot and ﬁrmly grasping the front handle with the left hand.

6. Grip the starter handle with the right hand and pull slowly until starter engagement is felt.

7. With the starter engaged, pull the starter upward. Repeat until the engine either attempts to start or starts.

Firm Grip

CAUTION!

The recoil starter can be

damaged by abuse!

n Never pull the starter completely

to the end of the starter cord. Fully extending the starter cord can damage the starter spring, cord and/or starter assembly.

n Never release the starter grip

with the starter rope extended. Always hold on to the grip during engine start and return the starter grip back to the starter housing slowly as the starter spring retracts the rope.

NOTE:

If the engine fails to start, repeat the starting procedure setting the choke control appropriately for either a cold or warm engine. If the engine still fails to start, refer to the section, “Starting a Flooded Engine.”

Engine Start:

1. Move the ignition ON-OFF switch to the ON position.

2. COLD ENGINE ONLY: Completely close the choke by pulling the choke control out to the fully extended position. This motion will automatically engage the “fast idle” setting.

3. WARM ENGINE: Pull the choke control out to its fully extended position and then push the choke control all the way in again. This motion will automatically engage the “fast idle” setting.

Place Foot in

Rear Handle

8. When the engine attempts to start or starts, push the choke control in if previously set. If the engine does not continue to run, pull the starter until the engine restarts then immediately press and release the throttle lever to disengage the fast idle.

(

Starting a Flooded Engine

If the carburetor choke is closed (choke control fully extended) and after repeated attempts, the engine fails to start, the engine may be ﬂooded with fuel. The following steps are recommended to clear a ﬂooded engine.

1. Move the “ON-OFF” ignition control switch to the “OFF” position.

WARNING!

The ignition switch must

be in the “OFF” position to prevent the chance of igniting fuel and/or fuel vapors escaping from the engine during this procedure.

2. Push the choke control completely in to open the choke.

3. Remove the spark plug access cover and disconnect the plug wire. Remove the spark plug.

4. Inspect the spark plug for damage or excessive wear and replace if necessary. If the spark plug electrode is fuel soaked, or coated with carbon deposits, clean and set the plug gap. Refer to page 14 of this manual in the Maintenance section for spark plug information.

WARNING!

Keep clear of the spark

plug opening! Any excess fuel in the engine will be ejected through the spark plug opening during starter operation.

5. With the spark plug removed, the choke control pushed in and the ignition control in the “OFF” position, clear any excess fuel in the engine by repeatedly pulling the starter until no evidence of fuel is seen escaping from the spark plug opening.

6. Replace the spark plug and install the spark plug lead and access cover.

7. Refer to the Engine Start and Stop section and follow the instructions for starting a warm engine.

8. If the engine still fails to start, refer to the Troubleshooting section.

Remove the

Spark Plug

Pull the engine over

Stopping the Engine

1. Move the “ON-OFF” ignition control switch to the off position. If the saw has just been used, allow the engine to idle for 1 to 2 minutes to stabilize engine operating temperature before stopping the engine.

Carburetor Adjustments

WARNING!

The saw chain must never rotate at engine idle speed.

Idle Speed Adjustment:

Use a screwdriver to slowly turn the idle speed adjusting screw clockwise or counter-clockwise until the engine idles at 2,800 min-1.

Idle Adjust

(Clockwise to Increase)

CAUTION!

Never run the engine at full

throttle with no-load. This may cause engine seizure.

Never operate this saw above

13,500 min

-1

. This may cause

engine seizure.

NOTE:

Low speed mixture and high speed mixture for the 446s/452s saw are factory

set and can not be adjusted in the eld.

Chain Brake

Chain Brake Operation

This saw is equipped with a dual function chain brake designed to stop the saw chain from rotating whenever kickback occurs.

WARNING!

The chain brake is

installed only to reduce the risk from kickback! The chain brake is not a substitute for careful operation!

Chain Brake Testing

IMPORTANT!

The chain brake system for this unit type 446s/452s is not adjustable! If the chain brake fails to stop the chain in any of the following steps, DO NOT USE THE SAW! Return the saw to your dealer for repairs.

IMPORTANT!

Release the throttle whenever the chain brake is activated!

Engaging the brake lever causes a

brake band to tighten around the clutch drum, stopping the saw chain.

n The chain brake is designed to

engage whenever the brake lever strikes the operator’s hand or from the inertial effects of kickback.

n The chain brake can also be activated

by pushing the brake lever forward manually.

To release (disengage) the chain brake, pull the brake lever rearward, towards the front handle until a positive stop is felt.

WARNING!

Both of the following testing

procedures must cause the chain brake to engage and prevent the saw chain from moving! If the chain brake does not fully engage and prevent the saw chain from moving during either test, DO NOT OPERATE THE SAW! Return the saw to your dealer for repairs!

Step 1: Inertia Chain Brake Function (engine “OFF”)

Use the following procedure to test for proper operation:

1. Turn the engine “OFF,” and verify that the ignition switch is in the “O” or “OFF” position.

2. Hold the chain saw normally, gripping the rear handle with the right hand and the front handle with the left hand. While keeping the chain saw level, hold the nose of the guide bar approximately 35 cm above a solid wood block. Release the front handle only and allow the guide bar nose to drop onto the wood. The chain brake lever should move forward to position 2 and activate the brake as soon as the nose strikes the wood block. Wearing gloves, make sure that the saw chain cannot be pulled around the guide bar.

Step 1

Step 2: Manual Chain Brake Function (engine running)

Use the following procedure to test for proper operation:

1. Start the saw and warm the engine to operating temperature.

2. With the saw on a ﬂat stable surface, maintain a ﬁrm grip on the rear handle with the right hand and the top of the front handle with the left hand. The left hand should be centered with the front hand guard.

CAUTION!

Operating the saw at wide open throttle for longer than 5 seconds without a load could result in engine damage.

3. Accelerate engine to full throttle, then, without releasing the front handle, roll the left wrist forward against the front hand guard/chain brake lever to push the brake lever forward until the chain brake activates (position 2). The saw chain must stop immediately. If either of step 1 or step 2 tests fail, contact an authorized Shindaiwa dealer for repairs.

Step 2

Chain Can Move

Chain

Stopped

Chain Brake Maintenance

CAUTION!

Never start or operate this saw while the chain brake is activated!

n Periodically clean the brake

mechanism of sawdust or debris.

n If the chain brake becomes damaged

or worn, or fails to completely engage or release the clutch drum, return the saw to your dealer for repairs.

n Never carry the saw by the brake

lever! Carry the saw by the front handle.

n Always stop the saw and disengage

the chain brake before removing or replacing the clutch cover!

n Never make carburetor adjustments

while the chain brake is engaged!

Cutting with the Saw

IMPORTANT!

Always use full throttle while cutting! Keep the chain sharp and let the saw do the work! Forcing the saw into the wood reduces cutting performance, and can damage the saw through overheating!

Wear close-ﬁtting clothing

to protect your legs and

arms. Do not wear clothing

or jewelry that could get

caught in the machinery

or brush.

THINK SAFETY!

Stop the saw before moving it to or

from the work area.

Wear hearing protection and eye protection

such as a face shield or goggles when

operating the unit to shield against saw dust.

Always wear gloves when

operating this saw.

Use full-throttle while

cutting and apply only enough

bar pressure to maintain engine

speeds of 9,000-10,000 min

Clear a safe work area

before cutting.

-1

Felling Trees

Before Felling a Tree

1. Determine the direction of fall by inspecting:

Tree shape and angle of lean.

n n Size and shape/placement of limbs. n Location of nearby trees or other

obstacles.

Condition of tree (damage, disease,

etc.).

Prevailing wind direction.

2. Clear a safe work area around the tree. Be alert for loose or dead limbs overhead. Clear an appropriate escape path approximately 45° from the direction of fall.

3. Notify nearby workers of your intentions!

made of a cut-resistant material such as ballistic nylon covering the full length of

Keep a proper footing

(do not overreach)!

Escape

Path

Direction of Fall

WARNING!

Diseased, damaged, or

otherwise unbalanced trees can fall unpredictably during felling, and should be left to an experienced timber faller!

Felling Small Trees

(Under 15 cm diameter)

1. Determine the direction of fall. If uncertain as to the direction of fall, use the procedure “Felling Large Trees” as outlined in the next section.

Always wear leg protection (Chaps)

the thigh to the top of the boot.

Wear

appropriate

non-skid footwear.

Direction

Of Fall

Bumper

Spike

NEVER operate with a

loose saw chain!

NEVER operate the saw if

fastenings are loose or missing! NEVER operate the saw if any component parts are damaged,

loose, or missing!

2. Engage the bumper spike against the trunk of the tree and start to cut on the side of the tree away from the fall. Make a single cut all the way through the tree.

3. When the tree begins to fall, stop the saw, and put it down on the ground.

4. Use your retreat path to exit the area quickly.

45°

Escape

Path

45°

Felling Trees (continued)

Felling Larger Trees

(Over 15 cm diameter)

Direction of

Fall

Notch

n If a tree is otherwise healthy and not

seriously out of balance, its direction of fall can often be encouraged by ﬁrst “notching” the tree on the side facing the desired direction of fall.

n After the notch is completed, start

the felling cut slightly higher and on the opposite side of the tree, away from the direction of fall.

n The goal of the method is to leave a

sturdy wooden “hinge” for the tree to pivot on while falling.

1. Determine the direction of fall.

2. On the side of the tree facing the direction of fall, make a single 90° cut through approximately 1/3 of the tree’s diameter.

3. Working from the same side of the tree and at a 45° angle to the ﬁrst cut, make your second cut in an upward direction to remove a notch from the tree as shown.

Wooden

Hinge

Felling

Cut

WARNING!

Failure to leave a proper

wooden hinge during the falling or “back cut” can cause the tree to pinch the saw’s guide bar and may also change the direction of fall!

WARNING!

Always make your falling

cut parallel to the bottom cut! An angled falling cut may cause the tree to split, possibly changing the direction of fall!

Wooden

Hinge

Direction

Of Fall

Bumper

Spike

45°

Escape

Path

45°

4. Working on the opposite side of the tree and starting approximately 2” higher than the bottom of the notch created in steps 1-3. Set the bumper spike just behind the felling hinge. Use full throttle and bring the bar and chain slowly into the tree. Make sure the tree does not start to move in the opposite direction to your intended felling direction. Drive a wedge or breaker bar into the cut as soon as it is deep enough.

NOTE:

If the cut appears to be closing on the bar, use a mallet to drive one or two plastic or wooden wedges into the cut behind the bar.

5. When the tree begins to fall, stop the saw, and put it down on the ground.

6. Use your retreat path to exit the area quickly.

Limbing

Limbing a standing tree is usually accomplished in the same manner as bucking, with a third and ﬁnal cut used to remove the remaining stub of the limb.

3 2

WARNING!

Kickback danger increases

in over-height or out of position cutting! Do not overreach or attempt to cut above shoulder height!

NOTE:

When cutting unsupported logs or limbs, starting with an underbuck cut will minimize the possibility of the wood splitting during the bucking cut.

Bucking

WARNING!

Always cut downed timber

from the uphill side of the wood! Be alert for potential injury from rolling or shifting logs! Downed timber may shift or roll unpredictably during cutting or handling operations!

Techniques

n If the log is well supported, start your

cut from the top of the log. Keeping the guide bar parallel to the ground, cut straight down but do not allow the saw to cut into the ground.

n Cutting downed timber, or “bucking,”

increases the possibility of the wood settling and pinching the guide bar. Driving one or more soft plastic or wooden bucking wedges can help prevent bar-pinching during a cut.

n Use two cuts when bucking near the

inboard end of an unsupported log.

1. Make the ﬁrst cut as an overbuck approximately 1/3 the diameter of the log.

2. Finish the job with an underbuck coming up from beneath and joining the ﬁrst cut.

First Cut

Second Cut

n Use two cuts when bucking the

outboard end of an unsupported log. Your ﬁrst cut should be an underbuck, cutting upward through approximately 1/3 the diameter of the tree. Finally, move to the top of the log and ﬁnish the cut by bucking down (overbucking) to your ﬁrst cut.

Second Cut (overbuck)

First Cut (underbuck)

About 1/3 of Tree Diameter

Maintenance

WARNING!

Before performing any

maintenance on this saw, stop the engine and disconnect the spark plug wire!

Daily Maintenance

1. Remove dirt and debris from the saw exterior, cylinder ﬁns, and cooling air intake.

2. Inspect the saw for fuel and oil leaks. Repair as necessary.

3. Service the air ﬁlter.

n Remove the air ﬁlter cover and then

remove the element. Use extreme care to prevent any debris from entering the carburetor bore. Wash all parts with soap and water, and then gently wipe or blow dry before reassembly.

Cover

ilter Element

Choke

n Install the air ﬁlter element in the

saw.

4. Sharpen and adjust the saw chains as required.

5. Clean the guide bar groove and oil hole, and inspect the bar groove and tip for damage or unusual wear. Repair or replace worn or damaged components as necessary.

6. Inspect the drive sprocket.

7. Inspect the entire saw for damaged, loose or missing components or fastenings. Repair as necessary.

10/15 Hour Maintenance

1. Remove and clean the spark plug. Adjust the spark plug gap to 0.6 - 0.7 mm, and reinstall. Replace any damaged or visibly worn plug with an NGK BPMR7A or equivalent spark plug of the same heat range.

0.6 - 0.7 mm

CAUTION!

Never allow chips or other debris to enter the cylinder bore! Before removing the spark plug, thoroughly clean the spark plug and cylinder head area!

2. Remove the guide bar and chain. Carefully inspect the drive sprocket for wear or damage, and replace if noted. Inspect the guide bar grooves and tip for wear or damage, and repair or replace components as required.

IMPORTANT!

The drive sprocket and saw chain loop should always be replaced as a set! For economy, rotate the same 2-3 chains daily. When these chains are worn out, replace both the chains and drive sprocket at the same time.

40/50 Hour Maintenance

1. Replace the spark plug with an NGK BPMR7A (or equivalent), gapped to

0.6 - 0.7 mm.

2. Use a hooked wire to extract the fuel ﬁlter from inside the fuel tank, and then remove and replace the ﬁlter element. Before replacing the ﬁlter, inspect the condition of the fuel line. If damage or deterioration are noted, the saw must be removed from service until it can be inspected by a Shindaiwa-trained service technician.

Long Term Storage

(over 30 days)

n Thoroughly clean the saw exterior.

Remove all chips and other debris from the cylinder ﬁns and cooling passages.

n Drain the fuel tank, and then clear

the carburetor and lines by running the saw until it stops from lack of fuel.

Drain any remaining bar oil from the

oil reservoir.

Hooked

Wire

Fuel Line

Fuel

Filter

CAUTION!

Never store the saw with any fuel remaining in the tank, fuel lines, or carburetor! Your Shindaiwa warranty does not include coverage for damage caused by “stale” or contaminated fuels!

Remove the spark plug, and then

pour 7.4 ml of 2-cycle mixing oil into the cylinder through the spark plug

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.

3. Extract the oil ﬁlter from inside the oil tank, and then wash the ﬁlter element in an approved solvent. If damage or deterioration are noted on the oil suction line, the saw must be removed from service until it can be inspected by a Shindaiwa-trained service technician.

hole. Before reinstalling the spark plug, slowly pull the recoil starter 2-3 times to distribute the oil over the cylinder walls.

n Remove, clean, and reinstall the air

ﬁlter element as described under “Daily Maintenance.”

n Repair or replace any damaged

components as required, and then store the unit in a clean, dry, dustfree area.

n Protect the chain by using a chain

cover.

Saw Chain Performance

Your saw’s performance on the job depends heavily on the condition of its saw chain.

How the Saw Chain Works

As the saw chain is pulled through the wood:

1. The depth gauge setting determines the depth of cut for each cutter.

2. The cutter’s leading edge enters the wood, causing the entire cutter to “rock back” and lift away from the bar.

IMPORTANT!

Most of the actual cutting is done by the sides and corners of the individual cutters!

Sharpening Technique

1. Using the appropriate round ﬁle, sharpen all cutters to a 35° angle as shown.

IMPORTANT!

File all cutters to the same angle and

depth! Unequal ling may cause the

saw to vibrate or cut erratically!

NOTE:

For consistent ﬁling angles, use a ﬁling guide.

35°

Use a Filing Gauge

Using a Depth gauge joiner

3. The top plate peels the severed wood chip away.

4. The chip is discharged out the rear of the cutter.

Correct angle

on top plate

2. After all cutters are sharpened, use a depth gauge joiner to measure the height of each depth gauge.

3. As required, use a ﬂat ﬁle to lower depth gauges to the appropriate

0.64 mm height.

4. After all depth gauges have been adjusted, use a ﬂat ﬁle to round each depth gauge leading edge to original curvature and angle.

Correct Filing Technique

Slightly protruding hook or point (curve on non-chisel chain)

Top of depth gauge at

correct height below

top plate

Using a Flat File to Round the

Front Corner on a Depth Gauge

0.64 mm

Top plate angle less than recommended

Hook in side plate cutting edge

Front of depth

gauge rounded

Filing Problems

Cause

File held at less than recommended angle.

Result

Slow cutting. Requires extra effort to cut.

Remedy

File cutters to recommended angle.

Cause

File held too low or the le

was too small.

Result

Rough cutting. Chain grabs. Cutters dull quickly or won’t hold a cutting edge.

Remedy

Check le size. File cutters to

recommended angle.

Top plate angle more than recommended

Backslope on side plate cutting edge

Cause

File held at more than recommended angle.

Result

Cutting angle is very sharp but will dull fast. Cutting action rough and erratic.

Remedy

File cutters to recommended angle.

Cause

File held too high or the le

was too large.

Result

Cutters won’t feed into wood. Slow cutting. Must force chain to cut. Causes excessive bottom wear.

Remedy

File cutters at recommended

angle. Check le size.

High depth gauge

Low depth gauge

Cause Depth gauge never led. Result

Slow cutting. Must force chain to cut. Will cause excessive wear on the cutter heel.

Remedy

Lower gauges to recommended setting.

Cause

Wrong gauge setting or no gauge used.

Result

Rough cutting. Chain grabs. Saw won’t pull chain through wood. Excessive wear on the cutter heel.

Remedy

If depth gauges are too low, the chain is no longer serviceable.

Troubleshooting Guide

What To Check Possible Cause Remedy

Does the engine crank?

YES

ENGINE DOES NOT START

Faulty recoil starter.

Fluid in the crankcase.

Internal damage.

Consult with an authorized servicing dealer.

Good compression?

YES

Does the tank contain fresh fuel of the proper grade?

YES

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

YES

Is there spark at the spark plug wire terminal?

YES

Check the spark plug.

What To Check Possible Cause Remedy

Is the engine overheating?

Loose spark plug.

Excess wear on cylinder, piston, rings.

Fuel incorrect, stale, or contaminated; mixture incorrect.

Check for clogged fuel ﬁlter 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.

LOW POWER OUTPUT

Operator is overworking the unit.

Carburetor mixture is too lean.

Tighten and re-test.

Consult with an authorized servicing dealer.

Reﬁll 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.

Replace fuel ﬁlter or vent as required. Restart.

Move switch to “I” (ON) position and restart.

Consult with an authorized servicing dealer.

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

Clean and regap the plug to 0.6 - 0.7mm. Restart.

Replace the plug with a NGK BPMR7A. Restart

Cut at a slower rate.

Consult with an authorized servicing dealer.

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

Engine is knocking.

Improper fuel ratio.

Fan, fan cover, cylinder ﬁns dirty or damaged.

Carbon deposits on the piston or in the mufﬂer.

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.

Reﬁll 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.

Consult with an authorized servicing dealer.

Clean or replace the air ﬁlter.

Tighten or replace the plug with a NGK BPMR7A. Restart.

Repair or replace fuel ﬁlter and/or fuel line.

Reﬁll with fresh fuel/oil mixture.

Consult with an authorized servicing dealer.

See above.

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

Consult with an authorized servicing dealer.

Troubleshooting Guide (continued)

ADDITIONAL PROBLEMS

Symptom Possible Cause Remedy

Clogged air ﬁlter.

Poor acceleration.

Clogged fuel ﬁlter.

Clean or replace the air ﬁlter.

Replace the fuel ﬁlter.

Engine stops abruptly.

Engine difﬁcult to shut off.

Chain rotates at idle speed.

Chain brake engaged.

Lean fuel/air mixture.

Idle speed set too low.

Switch turned off.

Fuel tank empty.

Clogged fuel ﬁlter.

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.

Inspect and/or test brake. Consult with an authorized servicing dealer.

Consult with an authorized servicing dealer.

Adjust: 2,800 RPM min-1.

Reset the switch and restart.

Refuel. See page 8.

Replace fuel ﬁlter.

Drain; replace with clean fuel. See page 8.

Clean or replace spark plug with a NGK BPMR7A, Tighten the terminal.

Replace the ignition unit.

Consult with an authorized servicing dealer.

Test and replace as required.

Replace spark plug with a NGK BPMR7A.

Idle engine until cool.

Set idle: 2,800 RPM min-1.

Replace spring/shoes as required, check idle speed.

Excessive vibration.

Warped or damaged sprocket, chain, or bar.

Bent crankshaft.

Inspect and replace chain components as required.

Consult with an authorized servicing dealer.

Declaration of Conformity

DECLARATION

CONFORMITY

We hereby declare the Shindaiwa Engine Chain Saw, Model E440

meets the following respective requirements.

Council Directives: Standard taken: 89/336/EEC as amended EN 292 parts 1&2 98/37/EC as amended EN 608 & ISO 11681-1 2000/14/EC as amended CISPR 12 2004/26/EC as amended

(446s/EC1).

Measured sound power level: 112dB(A) Guaranteed sound power level: 113dB(A)

Notied Body:

Lloyd’s Register, 71 Fenchurch Street, London EC3M 4BS UK Storage No.: 0038/MCY/MUM/0510026/1

Technical documentation is kept by: K. Maeda DIV. Manager Engineering Research and Development DIV.

Shindaiwa Corporation

Head ofce: 6-2-11, Ozuka—Nishi, Asaminami—Ku, Hiroshima, 731—3167, Japan

TEL: 81-82-849-2003, FAX: 81-82-849-2482 6th May, 2005

Shindaiwa Corporation

T. Yoshitomi

DIV. Manager Head ofce: 6-2-11, Ozuka—Nishi, Asaminami—Ku, Quality Assurance DIV. Hiroshima, 731—3167, Japan

TEL: 81-82-849-2206, FAX: 81-82-849-2481

Declaration of Conformity

DECLARATION

CONFORMITY

We hereby declare the Shindaiwa Engine Chain Saw, Model E452

meets the following respective requirements.

Council Directives: Standard taken: 89/336/EEC as amended ISO 12100-1&2 98/37/EC as amended ISO 11681-1 2000/14/EC as amended CISPR 12 2004/26/EC as amended

(452s/EC1).

No. 0091

Measured sound power level: 112dB(A) Guaranteed sound power level: 113dB(A)

Notied Body:

Lloyd’s Register, 71 Fenchurch Street, London EC3M 4BS UK Storage No.: 0038/MCY/MUM/0510026/1

Technical documentation is kept by: K. Maeda DIV. Manager Engineering Research and Development DIV.

Shindaiwa Corporation

Head ofce: 6-2-11, Ozuka-Nishi, Asaminami-Ku, Hiroshima, 731-3167, Japan

TEL: 81-82-849-2003, FAX: 81-82-849-2482 21st, December, 2006

Shindaiwa Corporation

T. Yoshitomi

DIV. Manager Head ofce: 6-2-11, Ozuka-Nishi, Asaminami-Ku, Quality Assurance DIV. Hiroshima, 731-3167, Japan

TEL: 81-82-849-2206, FAX: 81-82-849-2481

MANUEL D’UTILISATION SHINDAIWA

SCIE À CHAÎNE 446s SCIE À CHAÎNE 452s

Français

AVERTISSEMENT !

• Lire le présent manuel et se familiariser avec son contenu.

• Cet appareil est conçu pour couper du bois. L’utiliser uniquement pour l’usage prévu.

• Limiter tout risque de blessures, sur soi-même ou sur les autres.

• Toujours porter un dispositif de protection des yeux pendant l’utilisation de l’appareil.

• Ne pas utiliser cet appareil ni procéder à son entretien sans avoir clairement compris le présent manuel.

• Conserver ce manuel à tout moment à portée de main pour pouvoir le consulter en cas de doute sur son utilisation.

Numéro de référence 69025-94314 Rév. 1/07

Introduction

Les scies à chaîne 446s/452s Shindaiwa ont été conçues et fabriquées dans le but d’offrir des performances et une ﬁabilité supérieures sans compromettre la qualité, le confort, la sécurité ou la durabilité. Les moteurs Shindaiwa à haut rendement représentent les dernières avancées en matière de technologie de moteur à deux temps. Ils offrent

Français

un rendement exceptionnel pour une cylindrée remarquablement basse et une conception des plus légères. En tant que propriétaire ou utilisateur professionnel, vous comprendrez vite pourquoi Shindaiwa est tout simplement une classe en soi !

IMPORTANT !

Les informations contenues dans le présent manuel décrivent les appareils disponibles au moment de la fabrication. Malgré tous les efforts déployés pour vous offrir les informations les plus récentes sur votre

scie à chaîne 446s/452s Shindaiwa, il

peut y avoir des différences entre votre scie et ce qui est décrit dans le présent

manuel. Shindaiwa Inc. se réserve le droit d’apporter des modications

au produit sans préavis et se dégage de toute obligation d’apporter des

modications aux appareils déjà

fabriqués.

Mises en garde

Des « mises en garde » spéciales apparaissent tout au long du manuel.

AVERTISSEMENT !

Une mise en garde précédée du symbole

triangulaire de mise en garde et du

mot « AVERTISSEMENT » contient

des informations dont il faut tenir compte pour éviter des blessures graves.

MISE EN GARDE !

Un énoncé précédé de la mention

« MISE EN GARDE » contient des

informations à prendre en compte pour éviter d’endommager l’appareil.

IMPORTANT !

Un énoncé précédé du mot

« IMPORTANT » contient des

informations d’une importance particulière.

REMARQUE :

Un énoncé précédé du mot « REMARQUE » contient des informations utiles pouvant faciliter votre travail.

Lire et suivre les consignes du Manuel d’utilisation. Dans le cas contraire pourraient s’ensuivre des blessures graves.

Attention au rebond ! Le rebond peut survenir quand l’extrémité du guide-chaîne entre en contact avec un objet pendant que la scie est en mouvement. Le rebond risque de projeter le guide-chaîne vers le haut puis vers l’arrière à une vitesse fulgurante.

Il est recommandé de porter des dispositifs de protection pour les yeux et pour les oreilles à tout moment pendant l’utilisation de l’appareil.

Niveau de puissance acoustique(mesuré conformément à la norme 2000/14/EC).

IMPORTANT !

L’entretien de la scie à chaîne, sauf en ce qui concerne les pièces énumérées dans les consignes d’entretien du manuel d’utilisation, doit être intégralement effectué par un technicien

qualié Shindaiwa (par exemple,

l’utilisation d’un outil inadéquat pour

retirer le volant ou pour le tenir an de

retirer l’embrayage risque de causer des dommages structurels au volant, qui peut se briser par la suite).

Table des matières

PAGE

Mises en garde ..................................... 2

Étiquettes et symboles ........................ 5

Description de l’appareil ...................... 6

Caractéristiques techniques ............... 6

Installation et réglage du

guide-chaîne et de la chaîne ................ 7

Mélange de carburant et

remplissage du réservoir .................... 8

Lubriﬁcation du guide ......................... 8

Démarrage du moteur ......................... 9

Arrêt du moteur ................................. 10

Réglage du carburateur ..................... 10

Frein de chaîne ................................... 11

Utilisation de la scie ........................... 12

Entretien

............................................. 14

Performances de

la chaîne de la scie ............................. 16

Guide de dépannage .......................... 17

Déclaration de conformité................. 19

Consignes de sécurité relatives au rebond

Cette scie est pourvue des équipements de sécurité suivants :

1. Frein de chaîne à inertie. n L’activation du frein de chaîne

applique une bande de frein sur le mécanisme d’entraînement de la chaîne, ce qui arrête la rotation de la chaîne. En cas de rebond brusque, le frein de chaîne est activé automatiquement et la chaîne s’arrête instantanément. Le frein de chaîne peut également être actionné manuellement.

AVERTISSEMENT !

Pour réduire le risque de

rebond, s’assurer que les dispositifs mentionnés ci-dessus sont correctement installés et en bon état.

AVERTISSEMENT !

Un frein de chaîne en bon

état fonctionne mieux.

Pour connaître les procédures

de vérication et de réglage

appropriées du frein de chaîne, voir page 11.

AVERTISSEMENT !

Le rebond peut survenir à une vitesse fulgurante.

Français

Consignes de sécurité relatives au rebond

Ces phénomènes de rebond peuvent tous deux provoquer une perte de contrôle de la scie à chaîne et exposer l’utilisateur à des blessures physiques graves !

1. Le rebond peut survenir quand la pointe ou l’extrémité du guide-chaîne entre en contact avec un objet pendant que la scie est en mouvement.Cela risque de projeter le guide-chaîne vers le haut puis vers l’arrière à une vitesse fulgurante !

2. Si la chaîne se coince en haut du guide-chaîne, le guide-chaîne peut être repoussé rapidement vers l’utilisateur.La chaîne se coince quand le bois compresse la chaîne en mouvement.

Ne jamais se ﬁer uniquement aux dispositifs de sécurité intégrés à la scie. En tant qu’utilisateur d’une scie à chaîne, il est possible d’éviter accidents et blessures en respectant les mesures suivantes :

Le facteur surprise contribue aux

accidents ! Comprendre en quoi consiste le mouvement de rebond permet de réduire ou d’éliminer le facteur de surprise.

n Enlever tous les objets pouvant

obstruer l’aire d’utilisation avant d’utiliser la scie. Enlever les troncs, les branches ou les objets qui risquent d’être percutés par l’extrémité du guide-chaîne au cours de l’utilisation.

n Tenir fermement la scie en posant

la main droite sur la poignée arrière et la main gauche sur la poignée avant, et bien encercler les poignées pendant le fonctionnement. Ne jamais lâcher prise : Une prise ferme permet de réduire le rebond de l’outil, tout en gardant un bon contrôle de la tronçonneuse.

Augmenter le régime de la scie

avant que la chaîne entre en contact avec la surface de travail et toujours maintenir un régime élevé pendant la coupe.

n Ne pas s’étirer outre mesure ni

effectuer de coupe au-dessus du niveau des épaules.

n Suivre les consignes du fabricant pour

l’affûtage et l’entretien de la chaîne.

n Utiliser seulement les combinaisons

de guide et de chaîne de remplacement recommandées par le fabricant.

n Ne jamais se tenir directement au-

dessus de la scie lors de la coupe !

n Utiliser une chaîne à faible rebond,

munie de freins de chaîne ou de guide-chaîne spéciaux pour réduire le risque de rebond.

Autres consignes de sécurité relatives au rebond

AVERTISSEMENT !

n Ne jamais utiliser la scie d’une

Français

n Porter des chaussures robustes,

n Ne laisser personne s’approcher

n Dégager l’aire d’utilisation de

n Avant de démarrer la scie,

n S’éloigner de la scie à chaîne

n Arrêter le moteur avant de

n Installer le protecteur de guide-

seule main ! L’utilisation de la scie à une main peut entraîner une perte de contrôle de la scie et exposer l’utilisateur et d’autres personnes à de graves blessures. Toujours tenir la scie à chaîne à deux mains.

des vêtements ajustés, des gants de protection, des dispositifs de protection pour les yeux et les oreilles ainsi qu’un casque de protection pour utiliser la scie.

de la scie à chaîne lors de son démarrage ou fonctionnement. Toujours tenir les observateurs et les animaux à distance de l’aire de travail.

Ne jamais laisser de jeunes enfants

ou des personnes qui n’ont pas lu le manuel d’utilisation utiliser l’appareil !

toute obstruction avant d’utiliser la scie. Ne jamais procéder à la coupe tant que vous ne disposez pas d’appuis fermes et d’une échappatoire vous permettant d’éviter l’arbre lors de sa chute.

s’assurer que rien n’obstrue le mouvement de la chaîne.

lorsque le moteur est en marche !

transporter la scie. Toujours arrêter le moteur, orienter le guide-chaîne et la chaîne vers l’arrière et tenir le silencieux du moteur éloigné de votre corps pour transporter la scie à chaîne.

déposer la scie.

chaîne approprié avant de transporter la scie.

n Ne jamais utiliser la scie à chaîne

en cas de fatigue, sous l’inﬂuence d’alcool, de drogues ou de toute autre substance qui pourrait nuire à la concentration ou au jugement de l’utilisateur.

n Ne jamais utiliser une scie

endommagée, incorrectement assemblée ou mal réglée.

n Ne pas utiliser la scie si la chaîne

continue de tourne une fois le levier d’accélération relâché.

n Utiliser uniquement des pièces

recommandées Shindaiwa pour procéder à la réparation ou à l’entretien de la scie.

n Faire preuve de vigilance pour la

coupe de branches arquées ! Une branche arquée risque d’effectuer un mouvement de retour soudain et d’entraîner une perte de contrôle de la scie.

n Faire preuve de vigilance pour la

coupe de buissons et de jeunes arbres ! Les branchages de faible diamètre risquent de se coincer dans la chaîne et d’être projetés en direction de l’utilisateur, ce qui peut entraîner la perte de contrôle de l’appareil.

n Utiliser la scie uniquement dans

une zone bien aérée. Les gaz d’échappement et les projections d’huile peuvent causer de graves blessures, voire causer la mort.

n Garder les poignées de la scie

sèches, propres exemptes de graisse et de carburant.

n Ne jamais utiliser la scie juché

dans un arbre à moins d’avoir reçu la formation nécessaire !

n Ne pas procéder à l’entretien

ou à la réparation de la scie à moins d’avoir reçu la formation nécessaire et de disposer des outils appropriés !

n L’entretien inadéquat, l’utilisation

de pièces de remplacement non conformes ou le retrait des dispositifs de sécurité (p. ex., le frein de chaîne ou toute composante du frein) risque de causer des blessures graves.

n Toujours se tenir éloigné du

couvercle d’embrayage d’une scie en mouvement.

n Ne jamais utiliser une scie dont

le dispositif antivibratoire est endommagé ou manquant. L’exposition prolongée aux vibrations risque de causer des blessures aux mains et provoquer notamment des troubles vasculaires, osseux ou articulaires, neurologiques ou musculaires. Pour réduire le niveau de vibration autant que possible, remplacer immédiatement tout montage endommagé. Les montages durcis par le vieillissement ou par l’exposition aux éléments climatiques doivent également être remplacés.

n Toujours garder le pied ferme

pendant l’utilisation de la scie ! Il n’est pas recommandé d’utiliser des échelles et autres platesformes temporaires car elles risquent de basculer.

n Ne pas utiliser cette scie ni aucune

autre scie sans le silencieux.

n L’entretien de la scie à chaîne,

sauf en ce qui concerne les pièces énumérées dans les consignes d’entretien du manuel d’utilisation, doit être intégralement effectué par un technicien qualiﬁé Shindaiwa.

Une exposition prolongée à

un bruit excessif est source de fatigue, et peut provoquer des troubles auditifs. L’utilisation d’un dispositif de protection adéquat pour les oreilles permet de réduire ce risque potentiel.

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