CS 400T - Saw MCCULLOCH - Free user manual and instructions

USER MANUAL CS 400T MCCULLOCH

Introduction 2 Identification of Symbols 2 Identification (What is What?) 3 General Safety Precautions 4 Assembly 7 Fuel Handling 10 Starting and Stopping 11 Working Techniques 12 Service and Adjustments 15 Storage 17 Troubleshooting Table 18 Technical Data 19 Declaration of Conformity 21 INTRODUCTION Dear Customer , Thank you for choosing a McCulloch product. You are thereby part of a story that started long ago, when the McCulloch Corporation started its manufacturingof engines during WorldWar II. In 1949, when McCulloch introduced its first light one-man chain saw, woodworking would never be the same again. The line of innovative chain saws would continue over thedecades, and business was expanded, first by airplane and kart engines in the 1950s, then by mini chainsaws in the 1960s. Later, in the 1970s and 80s, trimmers and blower/vacs were added to the range. Today, as a part of the Husqvarna group, McCulloch continues the tradition of powerful engines, technical innovations, and strong designs that have been our hallmarks for more than half a century. Lowering fuel consumption, emissions and noise levels are of top priority to us, as is improving safety and user-friendliness. We certainly hope that you will be satisfied with your McCulloch product, as it is designed to be your companion for a long time. By following this operators manual’s advice on usage, service, and maintenance, its lifespancan beextended.If you should needprofessional help with repair or service, please use the Service Locator at www.mcculloch.com. McCulloch has a policy of continuous product development and therefore reserves the right to modify the design and appearance of products without prior notice. This manual can also be downloaded at www.mcculloch.com.

IDENTIFICATION OF SYMBOLS

Chain brake, activated (right) Chain brake, not activated (left) W ARNING! This chain saw can be dangerous! Care- less or improper use can cause serious or even fatal injury. Read and understand the instruction manual before using the chain saw. Always use two hands when operating the chain saw . WARNING! Contacting the guide bar tip with any object should be avoided; tip contact may cause the guide bar to move suddenly upward andbackward, whichmay cause se- rious injury . Always wear appropriate ear protection, eye protection and head protection. Sound power level Sound pressure level at 7,5 meters This product is in accord- ance with applicable EC directives.3

IDENTIFICATION OF SYMBOLS

Move ON/STOP switch to the ON position. Slowly press primer bulb 6 times. Pull the starter rope sharply with your right hand until the engine fires. Pull the starter rope sharply with your right hand until the engine starts. Pull choke/fast idle lever out to the full extent (to the FULL CHOKE posi- tion). Push the choke/fast idle lever in to the HALF CHOKE position. Starting Reminder Starting a warm engine IDENTIFICATION (WHAT IS WHAT?) Chain Adjustment Tool (Bar Tool) Bar Oil Fill Cap Chain Front Hand Guard Starter Rope ON/STOP Switch Muffler Choke/Fast Idle Lever Starter Housing Idle Speed Screw Bumper spike Primer Bulb Front Handle Fuel Mix Fill Cap Guide Bar Outer Tensioning Ring Cylinder Cover Rear Handle Chain Direction of T ravel Chain Catcher Clutch Cover Bar Knob Chain Brake Throttle Lock-out Throttle Trigger4

GENERAL SAFETY PRECAUTIONS

WARNING: Always disconnect spark

plug wire and place wire where it cannot con- tact spark plug to prevent accidental starting when setting up, transporting, adjusting or making repairs except carburetor adjustments. This chain saw for forest service is only de- signed for cutting wood. Because a chain saw is a high-speed wood-cutting tool, special safe- ty precautions must be observed to reduce the risk of accidents. Careless or improper use of this tool can cause serious injury. PLAN AHEAD S Read this manual carefully until you com- pletely understand and can follow all safety rules, precautions, and operating instruc- tions before attempting to use the unit. S Restrict the use of your saw to adult users who understand and can follow safety rules, precautions, and operating instruc- tions found in this manual. Snug Fitting Clothing Safety Shoes Safety Chaps Heavy Duty Gloves Eye Protection Hearing Protection Safety Hat S Wear protective gear . Always use steel-toed safety footwear with non-slip soles; snug-fit- ting clothing; heavy-duty, non-slip gloves; eye protection such as non-fogging, vented goggles or face screen; an approved safety hard hat; and sound barriers (ear plugs or mufflers) to protect your hearing. Secure hair above shoulder length. S Always use approved hearing protection. Regular users should have hearing checked regularly as chain saw noise can damage hearing. Long--term exposure to noise can result in permanent hearing impairment. S Keep all parts of your body away from the chain when the engine is running. S Keep children, bystanders, and animals a minimum of 10 meters away from the work area. Do not allow other people or animals to be near the chain saw when starting or operating the chain saw. S Do not handle or operate a chain saw when you are fatigued, ill, or upset, or if you have taken alcohol, drugs, or medication. You must be in good physical condition and men- tally alert. Chain saw work is strenuous. If you have any condition that might be aggra- vated by strenuous work, check with your doctor before operating a chain saw. S Carefully planyour sawing operation in ad- vance. Do not start cutting until you have a clear work area, secure footing, and, if you are felling trees, a planned retreat path.

OPERATE YOUR SAW SAFELY

WARNING: Long term inhalation of

the engine’ s exhaust fumes, chain oil mist and dust from sawdust can result in serious per- sonal injury.

WARNING: This machine produces

an electromagnetic field during operation. This field may under some circumstances interfere with active or passive medical implants. To re- duce the risk of serious or fatal injury , we rec- ommend persons with medical im plants to consult their physician and the medical implant manufacturer before operating this machine. S Do not operate a chain saw with one hand. Serious injury to the operator, helpers, by- standers or any combination of these per- sons may result from one-handed operation. A chain saw is intended for two-handed use. S Operate the chain saw only in a well-venti- lated outdoor area. S Do not operate saw from a ladder or in a tree, unless you are specifically trained to do so. S Make sure the chain will not make contact with any object while starting the engine. Never try to start the saw when the guide bar is in a cut. S Do not put pressure on the saw at the end of the cut. Applying pressure can cause you to lose control of the chain saw when the cut is completed and may cau se se rious personal injury. S Stop the engine before setting the saw down. S Do not operate a chain saw that is damaged, improperly adjusted, or not com pletely and securely assembled. Always replace bar , chain, hand guard, or chain brake immedi- ately if it becomes damaged, broken or is otherwise removed. S With the engine stopped, hand carry the chain saw with the muffler away from your body, and the guide bar and chain to the rear , preferably covered with a scabbard. S Secure the machine during transport. CHAIN SAW SAFETY EQUIPMENT NOTE: In th i s sect i o n , the safety fea t u r e s of the chain saw and their function are explained. For inspection and maintenance, see instruc- tio n s in the CHECKING, MAI NTAI NI NG AND

SERVICING CHAIN SAW SAFETY EQUIP-

MENT section. See instructions under the WHAT IS WHAT? section, to find where these parts are located on your chain saw . The life span of the machine can be reduced and the risk of accidents can increase if machine main- tenance is not carried out correctly and if ser- vice and/or repairs are not carried out profes- sionally . If you need further information, please contact your nearest service dealer.5

GENERAL SAFETY PRECAUTIONS

S Chain brake. Your chain saw is equipped with a chain brake that is designed to stop the chain from moving.

WARNING: The chain brake is de-

signed to stop the chain immediately if you get a kickback. The chain brake reduces the risk of accidents, but only you can prevent them. DO NOT ASSUME THA T THE CHAIN BRAKE WIL L PROT EC T YOU IN THE EVENT OF A KICKBACK. S Throttle trigger lock--out. The throttle lock--out is designed to prevent accidental operation of the throttle trigger. S Chain catcher. The chain catcher is de- signed to catch the saw chain if it breaks. S Vibration damping system. Your chain saw is equipped with a vibration damping system that is designed to m inimize vibra- tion and make operation easier . SAFETY NOTICE: Exposure to vibrations through prolonged use of gasoline powered hand tools could cause blood vessel or nerve damage in the fingers, hands, and joints of peo- ple prone to circulation disorders or abnormal swellings. Prolonged use in cold weather has been linked to blood vessel damage in other- wise healthy people. If symptoms occur such as numbness, pain, loss of strength, change in skin color or texture, or loss of feeling in the fin- gers, hands, or joints, discontinue the use of this tool and seek medical attention. An anti- vibration system does not guarantee the avoid- ance of these problems. Users who operate power tools on a continual and regular basis must monitor closely their physical condition and the condition of this tool. S ON/STOP switch. The ON/STOP switch should be used to stop the engine.

CHECKING, MAINT AINING

AN D SER VICIN G CHAIN SA W SAFETY EQUIPMENT

WARNING: Never use a chain saw

with defective safety equipment. Safety equipment must be inspected and main- tained. If your chain saw does not pass in- spection, take the saw to your nearest ser- vice dealer for repair. S Chain brake. Brush off any wood dust, res- in and dirt from the chain brake and clutch drum. Dirt and wear can impair operation of the brake. For additional information, see OPERATING YOUR UNIT section. S Throttle trigger lock--out. Check that the throttle trigger can not be operated until the throttle lock--out is pressed. S Chain catcher. Check that the chain catcher is not damaged and is firmly at- tached to the body of the chain saw. S Vibration damping system. Regularly check the vibration damping units for cracks or deformation. Make sure the vibration damping units are securely at- tached to the engine unit and handle unit. S ON/STOP switc h. Start the engine and make sure the engine stops when you move the ON/STOP switch to the STOP position.

S Have all chain saw service performed by a qualified service dealer with the exception of the items listed in the maintenance section of this manual. For example, if improper tools are used to remove or hold the flywheel when servicing the clutch, structural damage to the flywheel can occur and cause the fly- wheel to burst. S Make certain the saw chain stops moving when the throttle trigger is released. For correction, refer to CARBURETOR AD- JUSTMENTS. S Never modify your saw in any way. Use only attachments supplied or specifically recommended by the manufacturer. S Keep the handles dry, clean, and free of oil or fuel mixture. S Keep fuel and oil caps, screws, and fas- teners securely tightened. S Use only McCulloch accessories and re- placement parts as recommended.

HANDLE FUEL WITH CAUTION

S Do not smoke while handling fuel or while operating the saw. S Eliminate all sources of sparks or flame in the areas where fuel is mixed or poured. There should be no smoking, open flames, or work that could cause sparks. Allow en- gine to cool before refueling. S Mix and pour fuel in an outdoor area on bare ground; store fuel in a cool, dry, well venti- lated place; and use an approved, marked container for all fuel purposes. Wipe up all fuel spills before starting saw. S M ove at least 10 feet (3 meters) from fuel- ing site before starting engine. S Turn the engine off and let saw cool in a non-combustible area, not on dry leaves, straw, paper , etc. Slowly remove fuel cap and refuel unit. S Store the unit and fuelin an area where fuel vapors cannot reach sparks or open flames from water heaters, electric motors or switches, furnaces, etc. KICKBACK

WARNING: Avoid kickback which

can result in serious injury. Kickback is the backward, upward or sudden forwardmotion of the guide bar occurring when the saw chain near the upper tip of the guide bar con- tacts any object such as a log or branch, or when the wood closes in and pinches the saw chain in the cut. Contacting a foreign ob- ject in the wood can also result in loss of chain saw control. S Rotational Kickback can occur when the moving chain contacts an object at the up- per tip of the guide bar . This contact can cause the chain to dig into the object,6

GENERAL SAFETY PRECAUTIONS

which stops the chain for an instant. The result is a lightning fast, reverse reaction which kicks the g uide bar up and back to- ward the operator . S Pinch-Kickback can occur when the the wood closes in and pinches the moving saw chain in the cut along the top of the guide bar and the saw chain is suddenly stopped. This sudden stopping of the chain results in a reversal of the chain force used to cut wood and causes the saw to move in the opposite direction of the chain rotation. The saw is driven straight back toward the operator . S Pull-In can occur when the moving chain contacts a foreign object in the wood in the cut along the bottom of the guide bar and the saw chain is suddenly stopped. This sudden stopping pulls the saw forward and away from the operator and could easily cause the operator to lose control of the saw. Avoid Pinch--Kickback: S Be extremely aware of situations or obstruc- tions that can cause material to pinch the top of or otherwise stop the chain. S Do not cut more than one log at a time. S Do not twist the saw as the bar is with- drawn from an undercut when bucking. Avoid Pull--In: S Always begin cutting with the engine at full speed and the saw housing against wood. S Use wedges made of plastic or wood. Never use metal to hold the cut open. Kickback Path Clear The Working Area Avoid Obstructions

REDUCE THE CHANCE OF

KICKBACK S Recognize that kickback can happen. With a basic understanding of kickback, you can reduce the element of surprise which contributes to accidents. S Never let the moving chain contact any ob- ject at the tip of the guide bar. S Keep the working area free from obstruc- tions such as other trees, branches, rocks, fences, stumps, etc. Eliminate or avoid any obstruction that your saw chain could hit while you are cutting through a particular log or branch. S Keep your saw chain sharp and properly tensioned. A loose or dull chain can increase the chance of kickback occurring. Follow manufacturer’s chain sharpening and main- tenance instructions. Check tension at regu- lar intervals with the engine stopped, never with the engine running. Make sure the bar clamp nuts are securely tightened after ten- sioning the chain. S Begin and continue cutting at full speed. If the chain is moving at a slower speed, there is greater chance of kickback occurring. S Cut one log at a time. S Use extreme caution when re-entering a previous cut. S Do not attempt cuts starting with the tip of the bar (plunge cuts). S Watch for shifting logs or other forces that could close a cut and pinch or fall into chain. S Use the Reduced--Kickback Guide Bar and Low--Kickback Chain specified for your saw. MAINTAIN CONTROL Never reverse hand positions Stand to the left of the saw Thumb on underside of handlebar Elbow locked S Keep a good, firm grip on the saw with both hands when the engine is running and don’t let go. A firm grip will help you reduce kick- back and maintain control of the saw. Keep the fingers of your left hand encircling and your left thumb under the front handlebar. Keep your right hand completely around the rear handle whether your are right handed or left handed. Keep your left arm straight with the elbow locked. S Position your left hand on the front handle- bar so it is in a straight line with your right hand on the rear handle when making bucking cuts. Never reverse right and left hand positions for any type of cutting. S Stand with your weight evenly balanced on both feet. S Stand slightly to the left side of the saw to keep your body from being in a direct line with the cutting chain. S Do not overreach. Y ou could be drawn or thrown of f balance and lose control of the saw.7

GENERAL SAFETY PRECAUTIONS

S Do not cut above shoulder height. It is dif fi- cult to maintain control of saw above shoulder height.I

KICKBACK SAFETY FEA TURES

WARNING: The following features

are included on your saw to help reduce the hazard of kickback; however , such features will not totally eliminate this dangerous reaction. As a chain saw user , do not rely only on safety devices. You must follow all safety precau- tions, instructions, and maintenance in this manual to help avoid kickback and other forces which can result in serious injury. S Reduced--Kickback Guide Bar, designed with a small radius tip which reduces the size of the kickback danger zone on the bar tip. A Reduced--Kickback Guide Bar has been demonstrated to significantly reduce the number and seriousness of kickbacks. Small Radius Tip Reduced Kickback Symmetrical Guide Bar Symmetrical Guide Bar Large Radius Tip S Low--Kickback Chain, designed with a contoured depth gauge and guard link which deflect kickback force and allow wood to gradually ride into the cutter .

ickback Chain Contoured Depth Gauge Elongated Guard Link Deflects Kickback Force And Allows Wood To Gradually Ride Into Cutter S Handguard, designed to reduce the chance of your left hand contacting the chain if your hand slips off the front handlebar . S Position of front and rear handlebars, de- signed with distance between handles and “in-line” with each other. The spread and “in-line” position of the hands provided by this design work together to give balance and resistance in controlling the pivot of the saw back toward the operator if kick- back occurs.

WARNING: DO NOT RELY UPON

ANY OF THE DEVICES BUILT INTOYOUR

KICKBACK. Reduced--kickback guide bars and low--kickback saw chains reduce the chance and magnitude of kickback and are recommended. Your saw has a low kickback chain and bar as original equipment. Repairs on a chain brake should be made by an au- thorized servicing dealer. Take your unit to the place of purchase if purchased from a servicing dealer, or to the nearest authorized master service dealer. S Tip contact in some cases may cause a light- ning fast reverse REACTION, kicking the guide bar up and back toward the operator. S Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back toward the operator. S Either of these reactions may cause you to lose control of the saw which could result in serious injury . Do not rely exclusively uponthe safety devices builtinto your saw. ASSEMBLY Protective gloves (not provided) should be worn during assembly.

A TT ACHING THE BUMPER

SPIKE (if not already attached) The bumper spike may be used as a pivot when making a cut.

1. Loosen and remove bar knob completely

by lifting lever and turning counterclock- wise. Remove clutch cover.

2. Attach the bumper spike with the two

screws as illustrated.8 ASSEMBLY

ATTACHING THE BAR AND

CHAIN (if not already attached)

WARNING: Recheck each assem-

bly step if the saw is received assembled. Al- ways wear gloves when handling the chain. The chain is sharp and can cut you even when it is not moving!

1. Move ON/STOP switch to the STOP po-

2. Loosen and remove bar knob completely

by lifting lever and turning counterclock- wise. LOOSEN Lever

3. Remove clutch cover and plastic ship-

ping spacer (if present). Clutch Cover Bar Knob Location of shipping spacer

5. Carefully remove the chain from the pack-

age. Hold chain with the drive links as sho wn .

Tip of Bar Cutters Depth Gauge Drive Links

6. Place chain over and behind clutch re-

tainer, fitting the drive links in the clutch drum sprocket.

7. Fit bottom of drive links between the

teeth in the sprocket in the nose of the guide bar.

8. Fit chain drive links into bar groove.

9. Pull guide bar forward until chain is snug

in guide bar groove. Ensure all drive links are in the bar groove.

10. Installclutchcover makingsure thead-

justing pin is positioned in the lower hole in the guide bar. This pin moves the bar forward (tightening the chain) and back- ward (loosening the chain) as the outer tensioning ring is turned. Back view of clutch cover Adjusting pin CAUTION: It is very important wheninstal- ling the clutch cover that the adjusting pin aligns into the lower hole in the guide bar . Failure to install the clutch cover correctly may result in permanent damage to your chain saw. Clutch Cover Lower Hole Guide Bar Adjusting Pin

11. Install bar knob. Once the chain is ten-

sioned, you will need to tighten bar knob.9 ASSEMBLY CHAIN TENSION (including units with chain already installed)

WARNING: Wear protective gloves

when handling chain. The chain is sharp and can cut you even when it is not moving. NOTE: When adjusting chain tension, make sure the bar knob is finger tight only . Attempting to tension the chain when the bar knob is tight can cause damage. Checking the tension: Use a screwdriver to move chain around guide bar. If the chain does not rotate, it is too tight. If the chain is too loose, it will sag below the bar . Bar Knob Outer Tensioning Ring Screwdriver Guide Bar Adjusting the tension: Chain tension is very important. Chains stretch during use. This is especially true during the first few times you use your saw. Always check chain tension each time be- fore you start the chain saw .

1. Lift lever on bar knob and turn counter-

clockwise 1 turn to loosen clutch cover. LOOSEN Lever

2. Turn outer tensioning ring (clockwise) to

tighten chain until chain solidly contacts bottom of guide bar rail. Lift tip of guide bar while adjusting tension. Tighten chain Loosen chain Outer Tensioning Ring

3. Using a screwdriver, move chain around

guide bar to ensure all links are in bar groove.

WARNING: Failure to return lever on

bar knob to original position could result in serious personal injury or damage to your chain saw .

6. Use a screwdriver to move chain around

7. If chain does not rotate, it is too tight. Use

the lever to loosen bar knob 1 turn(coun- terclockwise); then, loosen chain by turning the outer te nsi on ing ring (co un ter- clockwise). Retighten bar knob.

8. If chain is too loose, it will sag below the

guidebar.DO NOT operate the saw if the chain is loose. NOTE: The chain is tensioned correctly when the weight of the chain does not cause it to sag below the guide bar (with the chain saw sitting in an upright position), but the chain still moves.

WARNING: If the saw is operated

with a loose chain, the chain could jump off the guide bar and result in serious injury.

WARNING: Muffler is very hot during

and after use. Do not touch the muffler or al- low combustible material such as dry grass or fuel to do so.10 FUEL HANDLING FUEL Note! The machine is equipped with a two- stroke engine and must always be run using a mixture of petrol and two-stroke oil. It is im- portant to accurately measure the amount of oil to be mixed to ensure that the correct mix- ture is obtained. When mixing small amounts of fuel, even small inaccuracies can drastic- ally affect the ratio of the mixture.

WARNING: Always ensure there is

adequate ventilation when handling fuel. PETROL S Use good quality unleaded or leaded petrol. S The lowest recommended octane grade is 90 (RON). S If you run the engine on a lower octane grade than 90 so--called knocking can occur. This gives rise to a high engine temperature and increased bearing load, which can result in serious engine damage. S When working with continuous high revs (e.g. limbing) a higher octane is recom- mended. Running--in AvoId running at a too high speed for exten- ded periods during the first 10 hours. TWO-STROKE OIL S For best results and performance use Uni- versal, Universal powered by McCulloch two--stroke engine oil, which is specially formulated for our air cooled two--stroke engines. S Never use two-stroke oil intended for water- cooled engines, sometimes referred to as outboard oil (rated TCW). S Never use oil intended for four--stroke en- gines. S A poor oil quality and/or too high oil/fuel ra- tio may jeopardise function and decrease the lifetme of catalytic converters. MIXING RATIO 1:50 (2%) with Universal, Universal powered by McCulloch two-stroke oil. 1:33 (3%) with oils class JASO FB or ISO EGB formulated for air-cooled, two-stroke engines. Petrol, litre Two--Stroke Oil, litre 2% (1:50) 3% (1:33) 5 0,10 0,15 10 0,20 0,30 15 0,30 0,45 20 0,40 0,60 MIXING S Always mix the petrol and oil in a clean container intended for fuel. S Always start by fillinghalf the amount of the petrol to be used. Then add the entire amount of oil. Mix (shake) the fuel mixture. Add the remaining amount of petrol. S Mix (shake) the fuel mixture thoroughly be- fore filling the machine’s fuel tank. S Do not mix more than one month’s supply of fuel at a time. S If the machine is not used for some time the fuel tank should be emptied and cleaned. CHAIN OIL S We recommend the use of special oil (chain oil) with good adhesion character- istics. S Never use waste oil. This results in dam- age to the oil pump, the bar and the chain. S It is important to use oil of the right grade (suitable viscosity range) to suit the air temperature. S In temperatures below 0°C(32°F) some oils become too viscous. This can over- load the oil pump and result in damage to the oil pump components. S Contact your service dealer when choos- ing chain oil. FUELING

WARNING: Taking the following pre-

cautions will lessen the risk of fire: do not smoke and do not place any hot objects in the vicinity of fuel; always stop the engine and let it cool for a few minutes before refuel- ing; when refueling, open the fuel cap slowly so that any excess pressure is released gently; tighten the fuel cap carefully after re- fueling; always move the machine away from the refueling area and source before starting. Clean the area around the fuel cap. Clean the fuel and chain oil tanks regularly. The fuel filter must be replaced at least once a year . Contamination in the tanks causes malfunc- tion. Make sure the fuel is well mixed by shaking the container before refuelling. The capacities of the chain oil tank and fuel tank are carefully matched. You should therefore always fill the chain oil tank and fuel tank at the same time.

WARNING: Fuel and fuel vapour are

highly flammable. Take care when handling fuel and chain oil. Be aware of the risks of fire, explosion and those associated with in- halation.11

STARTING AND STOPPING

WARNING: The chain must not

move when the engine runs at idle speed. If the chain moves at idle speed refer to CAR- BURET OR ADJUSTMENT within this manual. Avoid contact with the muffler. A hot muffler can cause serious burns. To stop the engine, move the ON/STOP switch to the STOP position. To start the engine, hold the saw firmly on the ground as illustrated below . Make sure the chain is free to turn without contacting any object. Left Han d on Front Handle Starter Rope Handle Right Foot Through Rear Handle Hold saw firmly while pulling starter rope. Use only 15″ -- 1 8 ″ (40 -- 45 cm) o

REMEMB ER When pulling the starter rope, do not use the full extent of the rope as this can cause the rope to break. Do not let starter rope snap back. Hold the handle and let the rope rewind slowly . For cold weather starting, start the unit at full choke; allow the engine to warm up before squeezing the throttle trigger. NOTE: Do not cut material with the choke/fast idle lever at the FUL L CHOKE position.

STARTING A COLD ENGINE

(orawarmengineafterrun- ning out of fuel) NOTE: Inthe following steps, when the cho- ke/fast idle lever is pulled out to the full ex- tent, the correct throttle setting for starting is set automatically. IGNITION SWITCH

3. Pull out choke/fast idle to the full extent

(to the FULL CHOKE position).

4. Pull the starter rope sharply with your

right hand until the engine fires, which can be heard th rough a “puff” sound. Then, proceed to the next step. NOTE: If the engine sounds as if it is trying to start before the 5th pull, stop pulling and immediately proceed to the next step.

5. Push the choke/fast idle lever in to the

6. Pull the starter rope sharply with your

right hand until th e engine starts.

7. Allow the engine to run for approxim ately

30 seconds. Then, squeeze and release throttle trigger to allow engine to returnto idle speed. There is a simplified start reminder with illustrations to describe each step on the rear edge of the chain saw.

2. Pull the choke/fast idle lever out to the

FULL CHOKE position to set the fast idle, then push the lever in to the HALF CHOKE position.

3. Slowly press the primer bulb 6 times.

4. Pull the starter rope sharply with your

right hand until th e engine starts.

5. Squeeze and release throttle trigger to

allow engine to return to idle speed. DIFFICULT STARTING (or start- ing a flooded engine) The engine may be flooded with too much fuel if it has not started after 10 pulls. Flooded engines can be cleared of excess fuel by pushing the choke/fast idle lever in completely (to the OFF CHOKE position) and then following the warm engine starting procedure listed above. Ensure the ON/ STOP switch is in the ON position. Starting could require pulling the starter rope handle many times depending on how badly the unit is flooded. If engine fails to start, re- fer to the TRO U BLESHO OTING TABLE.12 WORKING TECHNIQUES CHAIN BRAKE

WARNING: Ensure chain bra ke is

disengaged by pulling the front hand guard back toward the front handle as far as possible. The chain brake must be disengaged before cuttingwiththesaw. S This saw is equipped with a chain brake. The brake is designed to stop the chain if kickback occurs. S The inertia activated chain brake is activated if the front hand guard is pushed forward, ei- ther manually or by centrifugal force. S If the brake is already activated, it is disen- gaged by pulling the front hand guard back toward the front handle as far as possible. S When cutting with the saw, the chainbrake must be disengaged. Engaged Disengaged IMPORTANT POINTS

WARNING: Sometimes wood chips

get stuck in the clutch cover causing the chain to jam. Always stop the engine before clean ing. S Check chain tension before first use and af- ter 1 minute of operation. See CHAIN TEN- SION in the ASSEMBL Y section. S Cut wood only. Do not cut metal, plastics, masonry , non-wood buildi ng materia ls, etc. S The bumper spike may be used as a pivot when making a cut. S Stop the saw if the chain strikes a foreign object. Inspect the saw and repair parts as necessary. S Keep the chain outofdirtand sand. Even a small amount of dirt willquickly dull achain and increase the possibility of kickback. S Practice cutting a few small lo gs using the following techniques to get the “feel” of us- ing your saw before you begin a major sawing operation. S Squeeze the throttle trigger and allow the engine to reach full speed before cutting. S Begin cutting with the saw fram e against the log. S Keep the engine at full speed the entire time you are cutting. S Allow the chaintocut for you. Exert only light downward pressure. S Release the throttle trigger as soon as the cut is com pleted, allowing the en- gine to idle. If you run the saw at full throttle without a cutting load, unneces- sary wear can occur. S To avoid losing control when cut is com- plete, do not put pressure on saw at end of cut. S Stop the engine before setting the saw down.

TREE FELLING TECHNIQUES

WARNING: Felling a tree requires

chain saw skills and experience. Inexperi- enced users should not fell trees. Do not at- tempt any task that makes you feel uncom- fortable or unsure.

WARNING: Do not cut near buildings

or electrical wires if you do not know the direc- tion of tree fall, at night since you will not be able to see well, or during bad weather such as rain, snow, or strong winds. as fall is unpredictable. Carefully plan your sawing operation in ad- vance. You need a clear area all around the tree so you can have secure footing. Check for broken or dead branches which can fall on you causing serious injury . Natural conditions that can cause a tree to fall in a particular direction include: S The wind direction and speed. S The lean of the tree. The lean of a tree might not be apparent due to uneven or sloping terrain. Use a plumb or level to de- termine the direction of tree lean. S Weight and branches on one side. S Surrounding trees and obstacles. Look for decay and rot. If the trunk is rotted, it can snap and fall toward the op erator. Make sure there is enough room for the tree to fall. Maintain a distance of 2-1/2 tree lengths from the nearest person or other objects. Engine noise can drown out a warning call. Remove dirt, stones, loose bark, nails, staples, and wire from the tree where cuts are to be made. Direction of Fall 45_ Plan a clear retreat path

(15 cm i n diameter or larger) The notch method is used to fell large trees. A notch is cut on the sideof the tree in the de- sired direction of fall. After a felling cut is made on the opposite side of tree, the tree will tend to fall into the notch.

NOTCH CUT AND FELLING THE

TREE S Make notch cut by cutting the top of the notch first. Cut through 1/3 of the diameter of the tree. Nextcomplete the notch by cut- ting the bottom of the notch. See illustra- tion. Once the notch is cut remove the notch of wood from the tree.13 WORKING TECHNIQUES Notch First cut Second cut Final cut here. 5 cm above center of notch. 5cm 5cm S After removing the wood from the notch, make the felling cut on the opposite side of the notch. This is done by making a cut about 5 cm higher than the center of the notch. This will leave enough uncut wood between the felling cut and the notch to form a hinge. This hinge will help prevent the tree from fall- ing in the wrong direction. Opening of felling cut Closing of notch Hinge holds tree on stump and helps control fall NOTE: Before felling cut is complete, use wedges to open the cut when necessary to control the direction of fall. To avoid kickback or chain damage, use wood or plastic wedges, but never steel or iron wedges. S Be alert to signs that the tree is ready to fall: cracking sounds, widening of the felling cut, or movement in the upper branches. S As tree starts to fall, stop saw , put it down, and get away quickly on your planned re- treat path. S DO NOT cut down a partially fallen tree with your saw. Be extremely cautious with par- tially fallen trees that may be poorly sup- ported. When a tree doesn’t fall completely, set the saw aside and pull down the tree with a cable winch, block and tackle, or tractor .

CUTTING A FALLEN TREE

(BUCKING) Bucking is the term used for cutting a fallen tree to the desired log length.

WARNING: Do not stand on the log

being cut. Any portion can roll causing loss of footing and control. Do not stand downhill of the log being cut. Importa nt points S Cut only one log at a time. S Cut shattered wood very carefully; sharp pieces of wood could be flung toward oper- ator. S Use a sawhorse to cut small logs. Never allow another person to hold the log while cutting and never hold the log with your leg or foot. S Do not cut in a n area where logs, limbs, and roots are tangled. Drag the logs into a clear area before cutting by pulling out ex- posed and cleared logs first.

WARNING: If saw becomes pinched

or hung in a log, don’t try to force it out. You can lose control of the saw resulting in injury and/or damage to the saw . Stop the saw , drive a wedge of plastic or wood into the cut until the saw can be removed easily. Restart the saw and carefully reenter the cut. Do not attempt to restart your saw whenit is pinched or hung in a log. Turn saw OFF and use a plastic or wooden wedge to force cut open. Overcutting begins on the top sideof thelog with the saw against the log. When overcut- ting use light downward pressure. Overcutting Undercutting Undercutting involves cutting on the under- side of the log with top of saw against the log. When und ercutting use light upward pres- sure. Hold saw firmly and maintain control. The saw will tend to push back toward you.

WARNING: Never turn saw upside

down to undercut. The saw cannot be con- trolled in this position. First cut on pressure side of log Second cut First cut on pressure side of log Second cut

SUPPORT S Overcut through 1/3 of the diameter of the log. S Roll the log over and finish with a second overcut.14 WORKING TECHNIQUES S Give special attention to logs under strain to prevent the saw from pinching. Make the first cut on the pressure side to relieve the stress on the log.

BUCKING USING A LOG OR

SUPPORT STAND S Remember your first cut is always on the pressure side of the log. S Your first cut should extend 1/3 of the diameter of the log. S Finish with your second cut.

Cut Using a support stand

WARNING: Be alert for and guard

against kickback. Do not allow the moving chain to contact any other branched or objects at the nose of the guide bar when limbing or pruning. Allowing such contact can result in serious in jury .

WARNING: Never cli m b into a t re e to

limb or prune. Do not stand on ladders, plat- forms, a log, or in any position which can cause you to lose your balance or control o f the saw .

S Watch out for springpoles. Use extreme caution when cutting small size limbs. Slen- der material may catch the saw chain and be whipped toward you or pull you off balance. S Be alert for springback. Watch out for branches that are bent or under pressure. Avoid being struck by the branch or the saw when the tension in the wood fibers is released. S Keep a clear work area. Frequently clear branches out of the way to avoid tripping over them. LIMBING S Always lim ba treeafter it is cut down. Only then can limbing be done safely and prop- erly. S Leave the larger limbs underneath the felled tree to support the tree as you work. S Start at base of the felled tree and work to- ward the top, cutting branches and limbs. Remove small limbs with one cut. S Keep the tree b etween you and the chain as much as possible. S Remove larger, supporting branches with the cuttingtechniques described inBUCK- ING WITHOUT A SUPPORT. S Always use an overcut to cut small and freely hanging limbs. Undercutting could cause limbs to fall and pinch saw. PRUNING

WARNING: Limit pruning to limbs

shoulder height or below. Do not cut if branches are higher than your shoulder. Get a professional to do the job. S Make your fist cut 1/3 of the way through the bottom of the limb. S Next make a 2nd cut all the way through the limb. Then cut a third overcut leaving a 3 to 5 cm collar from the trunk of the tree. First cut Second cut Third cut Collar Pruning technique15

SERVICE AND ADJUSTMENTS

WARNING: Improper maintenance

could result in serious engine damage or in se- rious injury.

WARNING: Disconnect the spark

plug before performing maintenance, except for carburetor adjustments. We recommend all service and adjustments not listed in this manual be performed by an Authorized Service Dealer. MAINTENANCE SCHEDULE Check: Fuel mixture level Before each use.... Bar lubrication Before each use....... Chain tension Before each use....... Chain sharpness Before each use.... For damaged parts Before each use.. For loose caps Before each use...... For loose fasteners Before each use... Fo r loose parts Before each use...... Inspect and Clean: Bar Before each use................ Complete saw After each use....... Air filter Every 5 hours*............. Chain brake Every 5 hours*........ Spark arresting screen and muffler Every 25 hours*......... Replace spark plug Yearly. Replace fuel filter Yearly... *HoursofOperation CHAIN BRAKE

WARNING: If the brake band is worn

too thin it may break when the chain brake is triggered. With a broken brake band, the chain brake will not stop the chain. The chain brake should be replaced by an authorized service dealer if any part is worn to less than 0,02″ (0,5 mm) thick. Repairs on a chain brake should be made by an authorized service dealer. Take your unit to the place of purchase if purchased from a servicing dealer, or to the nearest autho- rized master service dealer.

BRAKING FUNCTION CONTROL

CAUTION: The chain brake must be checked several times daily . The engine must be running when performing this proce- dure. This is the only instance when the saw should be placed on the ground with the en- gine running. Place the saw on firm ground. Grip the rear handlewith your right hand and the front han- dle with your left hand. Apply full throttle by fully depressing the throttle trigger. Activate the chain brake by turning your left wrist against the hand guard without releasing your grip around the front handle. The chain should stop immediately. AIR FILTER CAUTION: Do not clean filter in gaso- line or other flammable solvent to avoid creating a fire hazard or producing harmful evaporative emissions. Cleaning the air filter: A dirty air filter decreases engine perform- ance and increases fuel consumption and harmful emissions. Always clean after every 5 hours of operation.

1. Clean the cover and the area around it to

keep dirt and sawdust from falling into the carburetor chamber when the cover is removed.

2. Remove the parts as illustrated.

3. Wash the filter in soap and water. Rinse

in clean cool water. Air dry completely before reinstalling.

Air Filter Cover Cylinder Cover Air Filter BAR MAINTENANCE If your saw cuts to one side, has to be forced through the cut, or been run with an improper amount of bar lubrication it may be neces- sary to service your bar. A worn bar will dam- age your chain and make cutting dif ficult. After each use, ensure ON/STOP switch is in the STOP position, then clean all sawdust from the guide bar and sprocket hole. To maintain guide bar: S Move ON/STOP switch to the STOP posi- tion. S Loosen and remove bar nuts and chain brake. Remove bar and chain from saw. S Clean the oil holes and bar groove after each 5 hours of operation. Remove Sawdust From Guide Bar Groove Oil Holes S Burring of guide bar rails is a normal process of rail wear. Remove these burrs with a flat file. S When rail top is uneven, use a flat file to re- store square edges and sides.16

SERVICE AND ADJUSTMENTS

Correct GrooveWorn Groove File Rail Edges and Sides Square Replace guide bar when the groove is worn, the guide bar is bent or cracked, or when excess heating or burring of the rails occurs. If replacement is necessary, use only the guide bar specified for your saw in the repair parts list or on the decal located on the chain saw. SPARK PLUG The spark plug should be replaced each year to ensure the engine starts easier and runs better. Ignition timing is fixed and non- adjustable.

1. Loosen 3 screws on cylinder cover.

2. Remove the cylinder cover.

3. Pull of f the spark plug boot.

4. Remove spark plug from cylinder and

plug and tighten securely with a 19 mm socket wrench. Spark plug gap should be 0,5 mm.

6. Reinstall the spark plug boot.

7. Reinstall the cylinder cover and 3

screws. Tighten securely. Spark Plug Cylinder Cover Spark Plug Boot CHAIN SHARPENING

WARNING: Improper chain sharpen-

ing techniques and/or depth gauge mainte- nance will increase the chance of kickback which can result in serious injury .

WARNING: Wear protective gloves

when handling chain. The chain is sharp and can cut you even when it is not moving. Conditions which indicate the need for chain sharpening: S Reduction in size of wood chips. The size of the wood chip will decrease as the chain gets duller until it becomes more like a powder than a chip. Note that dead or rotted wood will not produce a good chip. S Saw cuts to one side or at an angle. S Saw has to be forced through the cut. Tools required: S 5/32 inch (4 mm) diameter round file and file holder S Flat file S Depth gauge tool TO SHARPEN CHAIN:

2. Check chain for proper tension. Adjust

S To sharpen the cutters, position the file holder level (90° ) so that it rests on the top edges of the cutter and depth gauge. NOTE: The chain has both left and right hand cutters. Depth Gauge File File Holder Cutter 90° S Align the 30° file holder marks paral- lelwith the bar and to the center of the chain. Cutter Cutter 30° File Holder Line S Sharpen cutters on one side of the chain first. File from the inside of each cutter to the outside. Then, turn the chain saw around and repeat the pro- cess for the other side of the chain. S File on the forward stroke only. Use 2 or 3 strokes per cutting edge. S Keep all cutters the same length when filing. S File enough to remove any damage to cutting edges (side plate and top plate of cutter).

ll Cutters Same Length Remove Damage Top Plate Side Plate S File chain to meet the specifications as shown. 30° 80° 60°17

SERVICE AND ADJUSTMENTS

WARNING: Maintain the proper hook

angle according to the manufacturer’s specifi- cations for the chain you are using. Improper hook angle will increase the chance of kick- back which can result in serious injury.

4. Check and lower depth gauges.

Depth Gauge Tool Depth Gauge File S Place gauge tool on cutter. S If the depth gauge is higher than the depth gauge tool, file it level to the top of the depth gauge tool. S Maintain rounded front corner of depth gauge with a flat file. NOTE: The very top of the depth gauge should be flat with the front half rounded off with a flat file. If you require further assistance or are unsure about performing this procedure, contact your authorized service dealer . CARBURETOR ADJUSTMENT

WARNING: The chain will be moving

during most of this procedure. Wear your pro- tective equipment and observe all safety pre- cautions. The chain must not move at idle speed. The carburetor has been carefully set at the factory. Adjustments may be necessary if you notice any of the following conditions: S Chain moves at idle. See IDLE SPEED--T adjusting procedure. S Saw will not idle. See IDLE SPEED--T ad- justing procedure. Idle Speed --T Allow engine to idle. If the chain moves, idle is too fast. If the enginestalls, idle is too slow. Adjust speed until engine runs without chain movement (idle too fast) or stalling (idle too slow). The idle speed screw is located in the area above the primer bulb and is labeled T. S T urn idle speed screw (T) clockwise to in- crease engine speed. S T urn idle speed screw (T) counterclock- wise to decrease engine speed. STORAGE

WARNING: Stop engine and allow to

cool, and secure the unit before storing or transporting in a vehicle. Store unit and fuel in an area where fuel vapors cannot reach sparks or open flames from water heaters, electric motors or switches, furnaces, etc. Store unit withallguards in place. Position so that any sharp object cannot accidentally cause injury to passersby . Store the unit out of reach of children. S Before storing, drain all fuel from the unit. Start engine and allow to run until it stops. S Clean the unit before storing. Pay particu- lar attention to the air intake area, keeping it free of debris. Use a mild detergent and sponge to clean the plastic surfaces. S Do not store the unit or fuel in a closedarea where fuel vapors can reach sparks or an openflamefrom hot water heaters, electric motors or switches, furnaces, etc. S Store in a dry area out of the reach of chil- dren. S Ensure the machine is cleaned and that a complete service is carried out before long--term storage. S The guide bar and chain must always be covered with a scabbard when the machine is being transported or in storage in order to prevent accident contact with the sharp chain. Even a non--moving chain can cause serious cuts to yourself or persons you bump into with an exposed chain. CAUTION: It is important to prevent gum deposits from forming in essential fuel system parts such as the carburetor , fuel fil- ter, fuel hose, or fuel tank during storage. Al- cohol blended fuels (called gasohol or using ethanol or methanol) can attract moisture which leads to fuel mixture separation and formation of acids during storage. Acidic gas can damage the engine.18

TROUBLE CAUSE REMEDY

Engine will not start or will run only a few seconds after starting.

1. Ignition switch off.

4. Spark plug not firing.

5. Fuel not reaching

2. See “Difficult Starting” in

3. Fill tank with correct fuel mixture.

4. Install new spark plug.

5. Check for dirty fuel filter; replace.

Check for kinked or split fuel line; repair or replace. Engine will not idle properly.

1. Idle speed requires

1. See “Carburetor Adjustment” in the

Service and Adjustments Section.

2. Contact an authorized service dealer .

1. Air filter dirty.

2. Spark plug fouled.

3. Chain brake engaged.

4. Carburetor requires

adjustment. Engine will not accelerate, lacks power, or dies under a load.

4. Contact an authorized service dealer .

Engine smokes excessively.

1. Too much oil mixed with

1. Empty fuel tank and refill with

correct fuel m ixture.

WARNING: Always stop unit and disconnect spark plug before performing all of

the recommended remedies below except remedies that require operation of the unit. TROUBLESHOOTING TABLE Chain moves at idle speed.

1. Idle speed requires

1. See “Carburetor Adjustment” in the

Service and Adjustments Section.

2. Contact an authorized service dealer .19

) in conformi- ty with EC directive 2000/14/EC. Note 2: Equivalent sound pressure level, according to ISO 22868, is calculated as the time--weighted energy total for different sound pressure levels under various working conditions. Typical statistical dispersion for equivalent sound pressure level is a standard deviation of 1 dB(A). Note 3: Equivalent vibration level, according to ISO 22867, is calculated as the time-- weighted energy total for vibration levels under various working conditions. Reported data for equivalent vibration level has a typical statistical dispersion (standard deviation) of 1 m/s

DECLARATION OF CONFORMITY

EC Declaration of Conformity (Only applies to Europe) We, Husqvarna AB, SE-561 82 Huskvarna, Sweden, tel: +46--36--146500, as authorised representative in the Community, declare that the chain saw for forest service models McCulloch CS 360T, CS 400T, and CS 420T SAS-AV with serial numbers dating from 2012 and onwards (the year is clearly stated on the rating plate, followed by the serial number), comply with the requirements of the COUNCIL’S DIRECTIVES: of 17 May 2006 “relating to machinery” 2006/42/EC; of 15 December 2004 “relating to electromagnetic compatibility” 2004/108/EC, and applicable supplements; and of 8 May 2000 “relating to the noise emissions in the environment” in accordance with Annex Vof2000/14/EC. For information relating to noise emissions, see Technical data section. The following standards have been applied: ISO 12100:2010, CISPR 12:2007, ISO 11681-1:2011. Notified body, 0404, SMP Svensk Maskinprovning AB, Fyrisborgsgatan 3 S--754 50 Uppsala, Sweden, has carried out EC type examination in accordance with the machinery directive’s (2006/42/EC) article 12, point 3b. The certificates for EC type examination in accordance with annex IX, have the numbers: 0404/12/2359. The supplied chain saw conforms to the example that underwent EC type examination. 12--10--15 Ronnie E. Goldman, Director of Engineering Authorized representative for Husqvarna AB and responsible for technical documentation22

REMPLACEMENT DE LA BOU-

ASSURANCE DE CONFORMITÉ