INSTRUCTION MANUAL IMPORTANT INFORMATION: Please read these instructions carefully and make sure you understand them before using this unit. Retain these instructions for future reference. MANUEL DINSTRUCTIONS RENSEIGNEMENTS IMPORTANTS: Avant dutiliser cet appareil, veuillez lire atentivement les instructions et assurez--vous de les avoir comprises. Conservez les instructions pour rfrence ultrieure. BETRIEBSANWEISUNG WICHTIGE INFORMATION: Lesen Sie diese Hinweise zur Handhabung des Gerts aufmerksam durch. Verwenden Sie es erst, wenn Sie sicher sind, da Sie alle Anweisungen verstanden haben und gut aufbewahren. MANUAL DE INSTRUCCIONES INFORMACIN IMPORTANTE: Lea atentamente las instrucciones y asegrese de entenderlas antes de utilizar esta aparato. Conserve las instrucciones para la referencia en el futuro.
115163426 Rev. 1 7/15/09 BRW
IDENTIFICATION (WHAT IS WHAT?)
Chain Adjustment Tool (Bar Tool) Front Hand Guard Front Handle Idle Speed Screw Starter Rope ON/STOP Switch Choke/ Fast Idle Lever

Muffler

Bar Oil Fill Cap Bumper spike Cylinder Cover Throttle Lockout Rear Handle Starter Housing Fuel Mix Fill Cap Chain Brake Chain Direction of Travel Primer Bulb

Throttle Trigger

Clutch Cover

Adjusting Wheel

Bar Knob

Chain Catcher

Guide Bar
IDENTIFICATION OF SYMBOLS
WARNING! This chain saw can be dangerous! Careless or improper use can cause serious or even fatal injury.
Always wear appropriate ear protection, eye protection and head protection. Always use two hands when operating the chain saw. Read and understand the instruction manual before using the chain saw.

Sound power level

Sound pressure level at 7,5 meters
WARNING! Contacting the guide bar tip with any object should be avoided; tip contact may cause the guide bar to move suddenly upward and backward, which may cause serious injury.

Starting Reminder

Move ON/STOP switch to the ON position.

Chain Tensioning

Lift lever on bar knob and turn counterclockwise 1 turn to loosen clutch cover.
Slowly press primer bulb 6 times.
Pull choke/fast idle lever out to the full extent (to the FULL CHOKE position). Pull the starter rope sharply 5 times with your right hand.
Turn adjusting wheel (downward direction) to tension chain until chain solidly contacts bottom of guide bar rail.
While lifting tip of guide bar, tighten bar knob (clockwise) securely. Hand tighten only! Return lever on bar knob to original position.
Push the choke/fast idle lever in to the HALF CHOKE position.
Pull the starter rope sharply with your right hand until the engine starts.

SAFETY RULES

Always disconnect spark plug wire and place wire where it cannot contact spark plug to prevent accidental starting when setting up, transporting, adjusting or making repairs except carburetor adjustments. Because a chain saw is a high-speed woodcutting tool, special safety precautions must be observed to reduce the risk of accidents. Careless or improper use of this tool can cause serious injury.

WARNING:

Hearing Protection Snug Fitting Clothing
Safety Hat Eye Protection Heavy Duty Gloves

Safety Shoes

Safety Chaps

PLAN AHEAD

S Read this manual carefully until you completely understand and can follow all safety rules, precautions, and operating instructions 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 instructions found in this manual.

MAINTAIN YOUR SAW IN GOOD WORKING ORDER
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 flywheel to burst. S Make certain the saw chain stops moving when the throttle trigger is released. For correction, refer to CARBURETOR ADJUSTMENTS. 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 fasteners securely tightened. S Use only McCulloch accessories and replacement 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 engine to cool before refueling. S Mix and pour fuel in an outdoor area on bare ground; store fuel in a cool, dry, well ventilated place; and use an approved, marked container for all fuel purposes. Wipe up all fuel spills before starting saw. S Move at least 10 feet (3 meters) from fueling 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 fuel in an area where fuel vapors cannot reach sparks or open flames from water heaters, electric motors or switches, furnaces, etc.
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 obstructions 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 withdrawn 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

Avoid Obstructions

Clear The Working Area

REDUCE THE CHANCE OF KICKBACK

KICKBACK

WARNING: Avoid kickback which can result in serious injury. Kickback is the backward, upward or sudden forward motion of the guide bar occurring when the saw chain near the upper tip of the guide bar contacts 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 object 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 upper tip of the guide bar. This contact can cause the chain to dig into the object, which stops the chain for an instant. The result is a lightning fast, reverse reaction which kicks the guide bar up and back toward the operator. S Pinch-Kickback can occur when the the wood closes in and pinches the moving 5
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 object at the tip of the guide bar. S Keep the working area free from obstructions 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 manufacturers chain sharpening and maintenance instructions. Check tension at regular intervals with the engine stopped, never with the engine running. Make sure the bar clamp nuts are securely tightened after tensioning 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

Stand to the left of the saw
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.
Reduced Kickback Symmetrical Guide Bar

Small Radius Tip Symmetrical Guide Bar
Never reverse hand positions

Large Radius Tip

Elbow locked
Thumb on underside of handlebar S Keep a good, firm grip on the saw with both hands when the engine is running and dont let go. A firm grip will help you reduce kickback 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 handlebar 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. You could be drawn or thrown off balance and lose control of the saw. S Do not cut above shoulder height. It is difficult to maintain control of saw above shoulder height.I
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. Low-Kickback 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, designed 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 kickback occurs.

KICKBACK SAFETY FEATURES

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 precautions, instructions, and maintenance in this manual to

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 the screwdriver end of the chain adjustment tool (bar tool) 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. Guide Bar
3. Using the screwdriver end of the chain adjustment tool (bar tool), move chain around guide bar to ensure all links are in bar groove. 4. While lifting tip of guide bar, tighten bar knob securely (clockwise). Hand tighten only! Bar Knob
Chain Adjustment Bar Knob Tool (Bar Tool)

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 you use and refuel your saw. 1. Lift lever on bar knob and turn counterclockwise 1 turn to loosen clutch cover.
TIGHTEN 5. Push lever on bar knob down to return lever to closed/locked position.
WARNING: Failure to push lever on bar knob down to closed/locked position could result in serious personal injury or damage to your chain saw. 6. Use the screwdriver end of the chain adjustment tool (bar tool) to move chain around guide bar. 7. If chain does not rotate, it is too tight. Loosen bar knob 1 turn (counterclockwise); then, loosen chain by turning the adjusting wheel 1/4 turn (upward direction). Retighten bar knob. 8. If chain is too loose, it will sag below the guide bar. DO NOT operate the saw if the chain is loose. 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 allow combustible material such as dry grass or fuel to do so.

IMPORTANT

Experience indicates that alcohol blended fuels (called gasohol or using ethanol or methanol) can attract moisture which leads to separation and formation of acids during storage. Acidic gas can damage the fuel system of an engine while in storage. To avoid engine problems, empty the fuel system before storage for 30 days or longer. Drain the gas tank, start the engine and let it run until the fuel lines and carburetor are empty. Use fresh fuel next season. Never use engine or carburetor cleaner products in the fuel tank or permanent damage may occur.
ke/fast idle lever is pulled out to the full extent, the correct throttle setting for starting is set automatically. IGNITION SWITCH ON STOP
STARTING A COLD ENGINE (or a warm engine after running out of fuel) NOTE: In the following steps, when the cho-

CHAIN BRAKE

Ensure chain brake is disengaged by pulling the front hand guard back toward the front handle as far as possible. The chain brake must be disengaged before cutting with the saw. The chain must not move when the engine runs at idle speed. If the chain moves at idle speed refer to CARBURETOR 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.
Choke Lever 1. Move ON/STOP switch to the ON position. 2. Slowly press primer bulb 6 times. 3. Pull out choke/fast idle to the full extent (to the FULL CHOKE position). 4. Pull the starter rope sharply 5 times with your right hand. 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 HALF CHOKE position.
CHOKE/FAST IDLE LEVER OFF

HALF FULL

6. Pull the starter rope sharply with your right hand until the engine starts. 7. Allow the engine to run for approximately 30 seconds. Then, squeeze and release throttle trigger to allow engine to return to idle speed.
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 authorized master service dealer. 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, either manually or by centrifugal force. S If the brake is already activated, it is disengaged by pulling the front hand guard back toward the front handle as far as possible. S When cutting with the saw, the chain brake must be disengaged. Disengaged Engaged

STARTING A WARM ENGINE

1. Move ON/STOP switch to the ON position. 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 the engine starts. 5. Squeeze and release throttle trigger to allow engine to return to idle speed.
DIFFICULT STARTING (or starting 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, refer to the TROUBLESHOOTING TABLE.
checked several times daily. The engine must be running when performing this procedure. This is the only instance when the saw should be placed on the ground with the engine running. Place the saw on firm ground. Grip the rear handle with your right hand and the front handle 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.
Braking function control CAUTION: The chain brake must be
Inertia activating function control
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
WARNING: When performing the following procedure, the engine must be turned off. Grip the rear handle with your right hand and the front handle with your left hand. Hold the chain saw approximately 35 cm above a stump or other wooden surface. Release your grip on the front handle and use the weight of the saw to let the top of the guide bar fall forward and contact the stump. When the tip of the bar hits the stump, the brake should activate.

CUTTING METHODS

IMPORTANT POINTS
S Check chain tension before first use and after 1 minute of operation. See CHAIN TENSION in the ASSEMBLY section. S Cut wood only. Do not cut metal, plastics, masonry, non-wood building materials, 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 out of dirt and sand. Even a small amount of dirt will quickly dull a chain and increase the possibility of kickback. S Practice cutting a few small logs using the following techniques to get the feel of using 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 frame against the log.

1st Cut 1st Cut

Turn saw OFF and use a plastic or wooden wedge to force cut open. Overcutting begins on the top side of the log with the saw against the log. When overcutting use light downward pressure. Overcutting
2nd Cut Using a support stand 2nd Cut
Undercutting Undercutting involves cutting on the underside of the log with top of saw against the log. When undercutting use light upward pressure. Hold saw firmly and maintain control. The saw will tend to push back toward you.

1st Cut 1st Cut 2nd Cut

WARNING: Never turn saw upside down to undercut. The saw cannot be controlled in this position. First cut on pressure side of log

LIMBING AND PRUNING

Second cut Second cut
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 injury. WARNING: Never climb into a tree to limb or prune. Do not stand on ladders, platforms, a log, or in any position which can cause you to lose your balance or control of the saw.
S Watch out for springpoles. Use extreme caution when cutting small size limbs. Slender material may catch the saw chain and be whipped toward you or pull you off balance.
First cut on pressure side of log
BUCKING WITHOUT A SUPPORT
S Overcut through 1/3 of the diameter of the log.
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.

PRUNING

LIMBING
S Always limb a tree after it is cut down. Only then can limbing be done safely and properly. 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 toward the top, cutting branches and limbs. Remove small limbs with one cut. S Keep the tree between you and the chain as much as possible. S Remove larger, supporting branches with the cutting techniques described in BUCKING WITHOUT A SUPPORT. S Always use an overcut to cut small and freely hanging limbs. Undercutting could cause limbs to fall and pinch saw.

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 position. 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

CHAIN SHARPENING

WARNING: Improper chain sharpening techniques and/or depth gauge maintenance 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
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 restore square edges and sides. File Rail Edges and Sides Square Worn Groove Correct Groove 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.

TO SHARPEN CHAIN:

SPARK PLUG
The spark plug should be replaced each year to ensure the engine starts easier and runs better. Ignition timing is fixed and nonadjustable. 1. Loosen 3 screws on cylinder cover. 2. Remove the cylinder cover. 3. Pull off the spark plug boot. 4. Remove spark plug from cylinder and discard. 5. Replace with Champion RCJ-7Y spark 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. Cylinder Cover
1. Move ON/STOP switch to the STOP position. 2. Check chain for proper tension. Adjust chain tension if necessary. 3. Sharpen cutters. 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. File Holder File 90 Depth Gauge

Cutter

S Align the 30 file holder marks parallel with the bar and to the center of the chain. Cutter

30 File Holder Line

Spark Plug Boot

Spark Plug

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 process 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).

All Cutters Same Length

Remove Damage
Top Plate Side Plate S File chain to meet the specifications as shown. 80 60

Idle Speed--T

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- ad-T justing procedure.
30 Hook Angle 0,65 mm Rounded Corner Squared Off Corner
Allow engine to idle. If the chain moves, idle is too fast. If the engine stalls, 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 Turn idle speed screw (T) clockwise to increase engine speed. S Turn idle speed screw (T) counterclockwise to decrease engine speed.

STORAGE

Right Too Much Hook Angle
WARNING: Maintain the proper hook angle according to the manufacturers specifications for the chain you are using. Improper hook angle will increase the chance of kickback which can result in serious injury. 4. Check and lower depth gauges. File Depth Gauge Tool

CARBURETOR ADJUSTMENT

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.
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 with all guards 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 particular 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 closed area where fuel vapors can reach sparks or an open flame from hot water heaters, electric motors or switches, furnaces, etc. S Store in a dry area out of the reach of children. 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 filter, fuel hose, or fuel tank during storage. Alcohol 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.
WARNING: The chain will be moving during most of this procedure. Wear your protective equipment and observe all safety precautions. The chain must not move at idle speed.

TROUBLESHOOTING TABLE

Always stop unit and disconnect spark plug before performing all of the recommended remedies below except remedies that require operation of the unit.

TROUBLE

Engine will not start or will run only a few seconds after starting.
1. Ignition switch off. 2. Engine flooded. 3. Fuel tank empty. 4. Spark plug not firing. 5. Fuel not reaching carburetor. 1. Idle speed requires adjustment. 2. Carburetor requires adjustment. Air filter dirty. Spark plug fouled. Chain brake engaged. Carburetor requires adjustment. 1. Too much oil mixed with gasoline. 1. Idle speed requires adjustment. 2. Clutch requires repair. 1. 2. 3. 4.

REMEDY

1. Move ignition switch to ON. 2. See Difficult Starting in Operation Section. 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. 1. See Carburetor Adjustment in the Service and Adjustments Section. 2. Contact an authorized service dealer. 1. 2. 3. 4. Clean or replace air filter. Clean or replace plug and regap. Disengage chain brake. Contact an authorized service dealer.
Engine will not idle properly. Engine will not accelerate, lacks power, or dies under a load. Engine smokes excessively. Chain moves at idle speed.
1. Empty fuel tank and refill with correct fuel mixture. 1. See Carburetor Adjustment in the Service and Adjustments Section. 2. Contact an authorized service dealer.
DECLARATION OF CONFORMITY
EC Declaration of Conformity (Only applies to Europe) We, Husqvarna AB, SE-Huskvarna, Sweden, Tel: +46- -146000, as authorised -36representative in the Community, declare that the chain saw model McCulloch Mac 842 SAS-AV from serial numbers 2009-031(N or D)00001 and onwards (the year is clearly stated on the rating plate, followed by the serial number), comply with the requirements of the COUNCILS DIRECTIVES: of 22 June 1998 relating to machinery 98/37/EC, annex IIA; 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 V of 2000/14/EC. The measured sound power is 108,7 dB(A), the guaranteed sound power is 113 dB(A) and the net power is 1,6 kW. The following standards have been applied: ISO 11681- 1:2004, EN/ISO 12100- 1:2003, EN/ISO 12100- 2:2003, and CISPR 12:2001. Notified body, 0404 the Swedish Machinery Testing Institute, Fyrisborgsgatan 3 S-Uppsala, Sweden, has carried out EC type approval. The certificate(s) is numbered: 404/06/1138. The supplied Chain Saw conforms with the sample that underwent the EC type approval. 09- -31 -1Ronnie E. Goldman, Director of Engineering Handheld Consumer Products

TECHNICAL DATA SHEET

Engine Cylinder volume, cm3 Stroke, mm Idle speed, rpm Recommended max. speed, unloaded, rpm Power, kW Ignition system Manufacturer Type of ignition system Spark plug Electrode gap, mm Mac 32 3,000 12,000 1,6 Walbro Inductive Champion 0,5 Noise levels Equivalent (see note 1) noise pressure level at operators ear, measured according to relevant international standards, dB(A) Equivalent (see note 1) noise power level, measured according to relevant international standards, dB(A) Vibration levels (see note 2) Front handle, m/s2 Rear handle, m/s2 Mac 842

5,4 5,4

Fuel and lubrication system Manufacturer Zama Carburetor type W-26B Fuel capacity, litre 0,34 Oil pump capacity at 8500 rpm, ml/min 4- 8 Oil capacity, litre 0,2 Type of oil pump Automatic Weight Without bar and chain, kg Length Inches 5,5
BAR CHAIN Pitch Max Inches Tip Radius 0,375 7T Oregon 91VJ 0,375 7T Oregon 91VG 0,375 7T Oregon 91VJ 0,375 7T Oregon 91VG 0,375 7T Oregon 91VJ 0,375 7T Oregon 91VG
Chain/bar Standard bar length, in/cm 14/35 16/40 18/45 Recommended bar lengths,in/cm 14/35 16/40 18/45 Usable cutting length, in/cm 13,5/34 15,5/39 17,5/44 Chain speed at maximum power, m/sec 18,5 Pitch, inches 0,375 Thickness of drive link, mm 1,3 No. of teeth on drive sprocket 6 Note 1: Equivalent noise level is, according to ISO 22868, calculated as the time-weighted energy total for noise levels under various working conditions with the following time distribution, 1/3 idle, 1/3 full load, 1/3 full speed. Note 2: Equivalent vibration level is, according to ISO 22867, calculated as the time-weighted energy total for vibration levels under various working conditions with the following time distribution: 1/3 idle, 1/3 full load, 1/3 full speed.
in/cm :dl 91VJ 91VG 0,375 0,375 0,050/1,3 0,050/1,3 5/32 / 4,0 5/32 / 4,0 0,025/0,65 0,025/0,65
14/35:52 16/40:56 18/45:62 14/35:52 16/40:56 18/45:62

PARTS LIST NO. DATE

545103428

Replaces

WEED EATER R PARTS LIST PARAMOUNT PARTS LIST POULANR PARTS LIST
Note: Illustration may differ from actual model due to design changes 5 1

CHAIN SAW MODEL(s)

Mac 8---42 & Mac 842

PAGE NO.

2/18/10

545103428 --- 8/20/09

WARNING
All repairs, adjustments and maintenance not described in the Operators Manual must be performed by qualified service

personnel.

45 Ref. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. Part No. 530021180 47

Clutch Washer Kit

Description Kit-Trigger/Lockout Cover-Handle Screw Fitting-Fuel line Kit-Fuel Line (Large) Kit-Fuel Line (Small) Assy-Fuel Pick Up Handle-Rear Spring-Rear Isolator Kit-Clutch Washer Assy-Clutch Drum 3/8 Kit-Clutch Washer Assy-Clutch Washer-Large Clutch Screw Assy-Fuel Cap w/ret Screw Nut-U type speed Assy-Flywheel Shield-Heat Washer-Flywheel Nut-Flywheel Screw-Shoulder Starter Hub-EPS Spring-EPS
Ref. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38.
Part No. - -- -- -545040601
39. 40. 41. 42. 43. 44. 45.
Description Ref. Part No. Kit- EPS Starter Pulley 46. 545027903 (Incl. 23,24,25, 32) Housing-Fan 47. n 525884203 Handle-Starter 48. 530150000 Kit-Rope 49. 545157401 Screw 50. 545147001 Spring-Starter 51. 530016439 Screw 52. 530014381 Baffle 53. 952051211 Assy-Oil Vent 54. 530044915 Assy-Oil Cap w/ret. 55. 530016432 Handguard 56. 530016443 Spring-Handguard 57. 530059480 Assy-Chassis (Incl. 58. 530015906 4,5,6,7,9,15,16,17,18, 59. 530059479 20,34,35,37,41,59, ) 60. 530057878 (Gold) 61. 530016432 (Black) 62. 530071945 Kit-Chainbrake Screw 63. 530057924 Bolt-Bar 64. 530071891 Plate-Bar Screw 65. 530016064 Cover-Gearbox 66. 530057931 Knob 67. 530037820
Description Assy-Clutch Cover (Incl 43,44,47,48,49,50) Assy-Bar Adjust wheel Assy-Bar Adjust Pin-Bar Adjust Clip-Spring Screw Kit-Spike (incl. 51) Chain 16 Bar 16 Screw Screw Assy-Rear Iso. Spring Screw Assy-Front Iso. Spring Handle-Front Screw Kit-Clutch Washer (Incl. 10,12) Assy-Oil Pick Up Kit-Oil Pump (Incl. 65,66,67) Screw Assy-Oil Pump Gear-Worm
n = NEW PART NUMBER FOR THIS
K = REFER TO THE SERVICE REFERENCE
INDICATED FOR MORE INFORMATION. (LOCATED AT END OF IPL)
Note: Illustration may differ from actual model due to design changes 1
All repairs, adjustments and maintenance not described in the Operators Manual must be performed by qualified service personnel.

Engine Gasket Kit

43 Ref. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. Part No. 545046901 - --- 44 Ref. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. Part No. 530057926
Description Screw Module-Ignition Screw Strap-Ground Assy-Wire Harness Reflector-Tape Shield-Cylinder(Incl.1,6) Screw Lever-Ignition Switch Spring-Ignition Switch Knob-Choke Cover-Air Filter Filter-Air Screw Housing-Air Filter w/cable Carburetor Zama W26 (Incl. 18) Kit-Fuel Line (Small) Bulb-Purge snap-in Kit-Carb. Adaptor ( Incl. # 20,38,41) 530071894 Gasket-cyl. (kit)
31 Description Accy-Spark Plug (RCJ-7Y) Kit-Cylinder (Incl. 29,37) Clip-High Tension Lead Kit-Muffler (Incl. 25,26,27,28) Backplate-Muffler Gasket-Muffler (kit) Kit-Spark Arrestor Bolt-Muffler Insert-Left (black) Cyl. Assy-Crankshaft/Rod Bolt Cap-Crankcase Assy-Bearing/Seal Kit-Piston (Incl. 35,36) Retainer-Piston Pin Ring-Piston Insert-Right (gray)Cyl. Seal-Adaptor (kit) Screw Gasket-Carb. (kit) Tube-Intake

Ref. 42. 43. 44.

Part No. 530031135
Description Nut-Carb. Kit-Gasket (Incl. 20,26,38,40) Scrench
Not Shown - --- n 115291326 n 115291426 n 545005401 Manual-Operator Euro 1 Euro 2 Euro 3 Decal-Warning Decal-Warning CE Case-Carrying (body) Case-Carrying (r & l) Case-Carrying (latch) Case-Carrying (scab.)