Ryobi Outdoor RY74003D Chainsaw User Manual
Contents
1. CHAIN BRAKE See Figure 3 Chain brakes are designed to quickly stop the chain from rotating When the chain brake lever hand guard is pushed toward the bar the chain should stop immediately A chain brake does not prevent kick back The chain brake should be cleaned and tested daily Refer to Operation later in this manual for additional information A RUN POSITION B BRAKE POSITION A WARNING Even with daily cleaning of the mechanism the dependability of a chain brake to perform under field conditions cannot be certified Keep the SAFE T TIP nose guard on your saw s guide bar and use proper cutting techniques OPERATION A WARNING KICK BACK occurs when the moving chain contacts an object at the upper portion of the tip of the guide bar or when the wood closes in and pinches the saw chain in the cut Contact at the upper portion of the tip of the guide bar can cause the chain to dig into the object and stop the chain for an instant The result is a lightning fast reverse reaction which kicks the guide bar up and back toward the operator If the saw chain is pinched along the top of the guide bar the guide bar can be driven rapidly back toward the operator Either of these reactions can cause loss of saw control which can result in serious injury Do not rely exclusively upon the safety devices built into your saw As a chainsaw user you should take several steps to keep your cutting jobs free2. E During bucking operations stand on the uphill side so that the cut off section of the log cannot roll over you E Sometimes it is impossible to avoid pinching with just standard cutting techniques or difficult to predict which way a log will settle when cut BUCKING WITH A WEDGE See Figure 34 If the wood diameter is large enough for you to insert a soft bucking wedge B without touching the chain you should use the wedge to hold the cut open to prevent pinching NOTE When bucking or felling with a wedge you may need to remove the SAFE T TIP anti kick back device to allow the bar to be drawn through the cut After you complete reinstall the tip BUCKING LOGS UNDER STRESS See Figure 35 C LOG SUPPORTED AT ONE END D LOG SUPPORTED AT BOTH ENDS Make the first bucking cut E 1 3 of the way through the log and finish with a 2 3 cut F on the opposite side As you cut the log it will tend to bend The saw can become pinched or hung in the log if you make the first cut deeper than 1 3 of the diameter of the log Give special attention to logs under stress G to prevent the bar and chain from pinching OVERBUCKING See Figure 19 Begin on the top side of the log with the bottom of the saw against the log exert light pressure downward Note that the saw will tend to pull away from you A UNDERBUCKING See Figure 19 Begin on the under side of the log with the top of the saw against the log exert light pre
3. OPERATOR S MANUAL 356 mm 14 in 33cc Chainsaw PCN3335 Model No RY74003D Your new chainsaw has been engineered and manufactured to Ryobi s high standard for dependability ease of operation and operator safety Properly cared for it will give you years of rugged trouble free performance Thank you for buying a Ryobi chainsaw SAVE THIS MANUAL FOR FUTURE REFERENCE TABLE OF CONTENTS igi iceye 0 cs fo a Werreeerrnerer ter terres e rere cer Pee recent reer per cere torre cer rely E peter tere erreree reece eer rrrree ree er 2 E General Safety Rules 00 ce ceeeeeceeeseeeeneeeeeeeeaeecaeeeaeecsaeeeaeeeaaesaeesaaeeaeecaaeseaeessaesaeaeaeeseaeesaaesaeesaaeseaeessaeseaeeeaeeseaeesaeseaeeseeseaeeeeeees 3 4 E Specific Safety RUES syecsiicessiihseeal ee SH nace ee ened en dnl ee A As 4 5 MB Sy MIS aco cece aceacce cease nce E E E E EE EEE E N E 6 7 E SpecificationE ssiri anana E a T fe dacs et bel eee eid eee ee 7 W FAUT S erage cceca R a es cnatuce E hatva chisscet iesuctesyestaensencidateapaddaceuesetts N T 8 E Operation 2st Reich eee ee 8 14 MB MeCN ge fee oes cee ch shag saga cc kee E E bea cdcas sce ducante sauce owe suena dacaauaqch icdEueaube E E tenet cy taaede sdb cetungens 14 18 E Bar ahd Chain Combinations ois ie eek iieri nsii eoa Eea aia e aaia otites sUusedveroaViesauteneatedecttses tua r a Ea aa S A 18 BB TOUDISS MOORING E E E E E E E A E A AT 18 19 E Warranty ninae E a hang E aE E dunes A EE E
4. and securely assembled Be sure that the saw chain stops moving when the throttle control trigger is released If the saw chain moves at idling speed the carburettor may need adjusting Refer to Operation Adjusting Idling Speed later in this manual If the saw chain still moves at idling speed after adjustment has been made contact a Ryobi service dealer for adjustment and discontinue use until the repair is made A WARNING All chainsaw service other than items in the operator s manual maintenance instructions should be performed by competent chainsaw service personnel If improper tools are used to remove the flywheel or clutch or if an improper tool is used to hold the flywheel in order to remove the clutch structural damage to the flywheel could occur which could subsequently cause the flywheel to burst and serious injury could result KICK BACK Kick back is a dangerous reaction that can lead to serious injury Do not rely only on the safety devices provided with your saw As a chainsaw user you must take special safety precautions to help keep your cutting jobs free from accident or injury NOTE Refer to Operation later in this manual for added information on kick back and how to avoid serious personal injury UK SYMBOLS Important Some of the following symbols may be used on your tool Please study them and learn their meaning Proper interpretation of these symbols will allow you to oper
5. anticlockwise rotation from the original factory adjustment If your product exhibits specific performance problem s where the Troubleshooting Section recommends an anticlockwise needle adjustment and you have made no adjustments since the original purchase take the product to a factory authorised service dealer for repair In most cases the needed adjustment is a simple task for the factory trained service representative WARRANTY GUARANTEE STATEMENT RTSA RTUK RTG All Ryobi products are guaranteed from defects in material and workmanship for a period of twenty four 24 months effective and evidenced from date of original invoice or delivery note Defects caused by normal wear and tear unauthorised improper maintenance handling or overload are excluded from this guarantee as are accessories such as battery packs bulbs blades and bits etc In the event of malfunction within the guarantee period please return the assembled product with proof of purchase to your dealer or nearest Ryobi Service Centre Your statutory rights in respect of defective products remain unaffected by the warranty Ryobi Technologies GmbH Itterpark 7 D 40724 Hilden Germany Ryobi Technologies Customer Services Anvil House Tuns Lane Henley on Thames RG9 1SA UK Ryobi Technologies BP 50012 95945 Roissy CDG Cedex FRANCE Ryobi Technologies Australia PTY Limited 359 361 Horsley Road Milperra NSW 2214 Australia 19 UK SAFETY DIRECTIV
6. engine is running The fingers should encircle the handle and the thumb be wrapped under the handlebar This grip is least 7 Do not put pressure on the saw at the end of the cut likely to be broken by a kick back or other sudden reaction of the saw Any grip in which the thumb and fingers are on WORK AREA PRECAUTIONS the same side of the handle is dangerous because a slight See Figure 21 kick of the saw can cause loss of control Cut only wood or materials made from wood no sheet metal no plastics no masonry no non wood building materials Never allow children to operate your saw Allow no person to use this chainsaw who has not read this operator s manual or received adequate instructions for the safe and proper use of this chainsaw E Keep everyone helpers bystanders children and animals a SAFE DISTANCE from the cutting area During felling operations the safe distance should be a least twice the height of the largest trees in the felling area During bucking CHAIN LINE gt operations keep a minimum distance of 4 5 m 15 ft between workers A WARNING Always cut with both feet on solid ground to prevent being pulled off balance H Do not cut above chest height as a saw held higher is difficult to control against kick back forces DO NOT operate the throttle trigger with your left hand and hold the front handle with your right hand Never allow any part of your body to be in the chain line while oper
7. from accident or injury KICK BACK PRECAUTIONS See Figures 4 and 5 Rotational kick back A occurs when the moving chain contacts an object at the Kick back Danger Zone B of the guide bar The result is a lightning fast reverse reaction which kicks the guide bar up and back towards the operator This reaction may cause loss of control which can result in serious injury FUEL AND REFUELLING HANDLING THE FUEL SAFELY A WARNING Always turn off engine before refuelling Never add fuel to a machine with a running or hot engine Move at least 15 m 50 ft from refuelling site before starting the engine DO NOT SMOKE Failure to heed this warning can result in possible personal injury A WARNING Check for fuel leaks If any are found correct them before using the saw to prevent fire or burn injury Always handle fuel with care it is highly flammable Always refuel outdoors and do not inhale fuel vapour Do not let petrol or oil come in contact with skin Keep petrol and oil away from the eyes If petrol or oil comes in contact with the eyes wash them immediately with clean water If irritation is still present see a doctor immediately Clean up spilled fuel immediately MIXING THE FUEL This product is powered by a 2 cycle engine and requires pre mixing petrol and 2 cycle oil Pre mix unleaded petrol and 2 cycle engine oil in a clean container approved for petrol This engine is certified to operate on unleade
8. to the specified angles and to the same length as fast cutting can only be obtained when all cutters are uniform 1 Wear gloves for protection 2 Tension the chain prior to sharpening NOTE Refer to Maintenance Adjusting the Chain Tension earlier in this manual Use a 4 mm 5 82 in diameter round file and holder Do all of your filing at the midpoint of the bar 15 Keep the file level with the top plate of the tooth Do not let the file dip or rock See Figure 54 Using light but firm pressure stroke towards the front corner of the tooth See Figure 55 Lift the file away from the steel on each return stroke Put a few firm strokes on every tooth File all left hand cutters A in one direction Then move to the other side and file the right hand cutters B in the opposite direction See Figure 56 Remove filings from the file with a wire brush A CAUTION A dull or improperly sharpened chain can cause excessive engine speed during cutting which may result in severe engine damage A WARNING Improper chain sharpening increases the potential of kick back A WARNING Failure to replace or repair a damaged chain can cause serious injury A WARNING The saw chain is very sharp Always wear protective gloves when performing maintenance to the chain TOP PLATE FILING ANGLE See Figure 57 E A CORRECT 30 file holders are marked with guide marks to align file properly to produce co
9. 2 With the ignition switch off remove sparking plug Move choke lever to run position pushed in completely and pull starter cord 15 to 20 times This will clear excess fuel from engine Clean and reinstall sparking plug Set ignition switch to run l position Push and fully release primer bulb 7 times Pull starter three times with choke lever at run If engine does not start move choke lever to choke and repeat normal starting procedure If engine still fails to start repeat procedure with a new sparking plug Engine starts but will not Carburettor requires L Low jet Contact a Ryobi service dealer for carburettor adjustment accelerate properly adjustment Engine starts but will not Carburettor requires H High jet Contact a Ryobi service dealer for carburettor adjustment run properly at high speed adjustment Engine does not reach full 1 Check oil fuel mixture 1 Use fresh fuel and the correct 2 cycle oil mix ratio speed and or emits 2 Air filter dirty 2 Clean air filter Refer to Maintenance Cleaning the excessive smoke Air Filter earlier in this manual 3 Spark arrester screen dirty 3 Clean spark arrester screen Refer to Maintenance Cleaning the Spark Arresting Silencer earlier in this manual 4 Carburettor requires H 4 Contact a Ryobi service dealer for carburettor adjustment High jet adjustment TROUBLESHOOTING PROBLEM POSSIBLE CAUSE SOLUTION Engine starts r
10. E EC DECLARATION OF CONFORMITY According to machinery directive 98 37 EC and EMC directive 89 336 EEC We Ryobi Technologies Inc 1428 Pearman Dairy Road Anderson SC 29625 Declare in sole responsibility that the product PCN3335 RY74003D to which this certificate applies conforms to the basic health and safety requirements of the Machinery Directive 98 37 EC and other relevant directives like EMC Directive 89 336 EEC and Outdoor Directive 2000 14 EC EC type examination certificates have been issued by the following approved body SLG Pr f und Zertifizier ungs GmbH Certificate No 100883D SLG Pr f und Zertifizierungs GmbH Certificate No 1008870 To effect correct application of the health and safety requirements stated in the EEC directives the following European and or national standards and or technical specifications were consulted EN 292 1 1991 EN 292 1 1991 A1 1995 EN 608 1994 ISO 6533 2001 ISO 6534 1992 ISO 6535 1991 ISO 7293 1997 ISO 7914 2002 ISO 7915 1991 ISO 6531 1999 ISO 8334 1985 ISO 9518 1998 ISO 10726 1992 EN ISO 14982 1998 EN ISO 3744 1995 EN ISO 4871 1996 ISO 9207 1995 ISO 7182 1984 ISO 7505 1986 Ryobi Technologies Inc Wayne Hill 1428 Pearman Dairy Road Director Environmental Compliance Anderson SC 29625 aam August 25 2003 UK 20
11. E SURFACE while using your chainsaw that includes ladders scaffolds trees etc USE CAUTION WHEN HANDLING FUEL Move the chainsaw at least 50 feet 15 m from the refuelling point before starting the engine DO NOT ALLOW OTHER PERSONS to be near the chainsaw when starting or cutting with the chainsaw Keep bystanders and animals out of the work area DO NOT START CUTTING until you have a clear work area secure footing and a planned retreat path from the falling tree UK GENERAL SAFETY RULES E ALWAYS CARRY THE CHAINSAW WITH THE ENGINE STOPPED AND THE BRAKE ENGAGED the guide bar and saw chain to the rear and the silencer away from your body When transporting the chainsaw use the appropriate guide bar scabbard DO NOT OPERATE A CHAINSAWTHAT IS DAMAGED improperly adjusted or not completely and securely assembled Be sure that the saw chain stops moving when the throttle control trigger is released TURN OFF THE ENGINE before setting the chainsaw down DO NOT leave the engine running unattended As an additional safety precaution apply the chain brake prior to putting down the saw USE EXTREME CAUTION when cutting small size brush and saplings because slender material may catch the saw chain and be whipped toward you or pull you off balance WHEN CUTTING A LIMB that is under tension be alert for springback so that you will not be struck when the tension in the wood fibres is released KEEP THE HANDLES dry clean
12. E T TIP anti kick back device to allow the bar to be drawn through the cut After you complete the cut reinstall the tip immediately 5 As tree starts to fall stop the chainsaw and put it down immediately Retreat along the cleared path but watch the action in case something falls your way A WARNING Never cut through to the notch when making a back cut The hinge controls the fall of the tree this is the section of wood between the notch and back cut REMOVING BUTTRESS ROOTS See Figure 32 A buttress root is a large root extending from the trunk of the tree above the ground Remove large buttress roots prior to felling Make the horizontal cut A into the buttress first followed by the vertical cut B Remove the resulting loose section C from the work area Follow the correct tree felling procedure after you have removed the large buttress roots Refer to Operation Proper Procedure for Tree Felling earlier in this manual BUCKING See Figure 33 Bucking is the term used for cutting a fallen tree to the desired log length E Cut only one log at a time H Support small logs on a saw horse or another log while bucking E Keep a clear cutting area Make sure that no objects can contact the guide bar nose and chain during cutting this can cause kick back A To avoid the danger keep the SAFE T TIP anti kick back device attached while cutting Refer to Safety Kick back earlier in this manual
13. E a a A E E aa EE E AT 19 MB Salty BILE E EA E ENTE EEEE E E T E A ETE 20 W ustrationS oisin eter iaa aara a E ai aAA R a aoaaa aa aE a a iania Appendix A INTRODUCTION IMPORTANT Servicing requires extreme care and knowledge and should WARNING be performed only by a qualified service technician When servicing use only identical Ryobi replacement parts Carefully read through this entire operator s manual before using your new saw Pay close attention to the For safe operation read and understand all instructions Safety Rules and all Safety Alert Symbols including before using the chainsaw Follow all safety instructions Danger Warning and Caution These safety rules are Failure to follow all safety instructions listed below may for your safety and to prevent possible serious injury result in serious personal injury If you use your saw properly and only for what it is intended you will enjoy years of safe reliable service Look for this symbol to point out important safety precautions It means attention Your safety is involved A WARNING The operation of any tool can result in foreign objects being thrown into your eyes which can result in severe eye damage Before beginning tool operation always wear safety goggles or safety glasses with side shields and a full face shield when needed We recommend Wide Vision Safety Mask for use over spectacles or standard safety glasses with side shields Always wear eye prote
14. ENERAL PRECAUTIONS E DO NOT CUT VINES and or small undergrowth less than 76 mm 3 in in diameter E SILENCER SURFACES ARE VERY HOT during and after operation of the chainsaw keep all body parts away from the silencer Serious burns may occur if contact is made with the silencer UK when the engine is running Use a firm grip with thumbs and fingers encircling the chainsaw handles NEVER LET ANYONE USE YOUR CHAINSAW who has not received adequate instructions in its proper use This applies to rentals as well as privately owned saws BEFORE YOU START THE ENGINE make sure the saw chain is not contacting any object OPERATE THE CHAINSAW only in well ventilated areas SPECIFIC SAFETY RULES PROPER CLOTHING FOR SAFETY E Wear close fitting clothing Always wear heavy long trousers boots and gloves Do not wear jewellery shorts sandals or go barefoot Do not wear loose fitting clothing which could be drawn into the engine or catch the chain or undergrowth Wear overalls jeans or leggings made of cut resistant material or ones that contain cut resistant inserts Secure hair so that it is above shoulder level E Wear non slip safety footwear and heavy duty gloves to improve your grip and to protect your hands E Wear eye hearing and head protection when operating this equipment REFUELLING DO NOT SMOKE E To reduce the risk of fire and burn injury handle fuel with care It is highly flammable Mix and sto
15. UTION Make sure the chain has stopped before you do any work on the saw Every week of use reverse the guide bar on the saw to distribute the wear for maximum bar life The bar should be cleaned every day of use and checked for wear and damage Feathering or burring of the bar rails is a normal process of bar wear Such faults should be smoothed with a file as soon as they occur A bar with any of the following faults should be replaced E Wear inside the bar rails that permits the chain to lie over sideways Bent guide bar E Cracked or broken rails E Spread rails In addition lubricate guide bars with a sprocket at their tip weekly Using a grease syringe lubricate weekly in the lubricating hole Turn the guide bar and check that the lubrication holes A and chain groove are free from impurities MAINTAINING THE SAFE T TIP NOSE GUARD See Figures 62 and 63 A CAUTION Make sure the chain has stopped before you do any work on the saw UK 16 A WARNING Although the guide bar comes with a SAFE T TIP anti kick back device already installed you need to check the tightness of the mounting screw before each use Tighten the mounting screw A of the nose guard as instructed below These are specially hardened screws If you cannot install the screw tightly replace both the screw and the SAFE T TIP B before further operation Do not replace the screw with an ordinary screw In addition to
16. and clean of debris CLEANING THE ENGINE See Figures 68 and 69 Clean the cylinder fins and flywheel fins with compressed air or a brush periodically Dangerous overheating of the engine may occur due to impurities on the cylinder A WARNING Never run the saw without all the parts including the drivecase cover and starter housing securely in place Because parts can fracture and pose a danger of thrown objects leave repairs of the flywheel and clutch to trained Ryobi service dealer personnel NOTE Depending on the type of fuel used the type and amount of oil used and or your operating conditions the exhaust port and silencer may become blocked with carbon deposits If you notice a power loss with your petrol powered tool you may need to remove these deposits to restore performance We highly recommended that only qualified service technicians perform this service CHECKING THE FUEL FILTER See Figure 70 Check the fuel filter A periodically Replace it if contaminated or damaged 17 REPLACING THE SPARKING PLUG See Figure 71 This engine uses a Champion RCJ 6Y with 0 63 mm 0 025 in electrode gap Use an exact replacement and replace every six months or more frequently if necessary 1 Loosen the sparking plug by turning it anticlockwise with a spanner 2 Remove the sparking plug 3 Hand thread the new sparking plug turning it clockwise NOTE Be careful not to cross thread the sparking plug C
17. and free of oil or fuel mixture OPERATE THE CHAINSAW ONLY in well ventilated areas DO NOT OPERATE A CHAINSAW IN ATREE unless you have been specifically trained to do so ALL CHAINSAW SERVICE other than the items listed in the instruction manual and all maintenance should be performed by competent chainsaw service personnel For example if improper tools are used to remove the flywheel or if an improper tool is used to hold the flywheel in order to remove the clutch structural damage to the flywheel could occur and subsequently cause the flywheel to burst KEEP ALL PARTS OF YOUR BODY away from the saw chain when the engine is running KEEP SAFE T TIP ANTI KICK BACK NOSE GUARD properly mounted on the guide bar to prevent rotational kick back FOLLOW THE SHARPENING and maintenance instructions for the saw chain USE ONLY THE REPLACEMENT GUIDE BARS and low kick back chains specified for your saw DO NOT adapt your powerhead to a bow guide or use it to power any attachments or devices not listed for your saw SAVE THESE INSTRUCTIONS Refer to them frequently and use to instruct other users If you lend someone this tool lend them these instructions also SPECIFIC SAFETY RULES E ALWAYS HOLDTHE CHAINSAW WITH BOTH HANDS A WARNING The warnings labels and instructions found in this section of the operator s manual are for your safety Failure to follow all instructions may result in serious personal injury G
18. andlebar C BASIC OPERATING CUTTING PROCEDURES A CAUTION Practise cutting a few small logs using the following technique Serious damage can occur to the engine if improper to get the feel of using your saw before you begin a major adjustments are made to the L and H needles win tion PANY ere sear Do not force the L and H needles outside the 1 Take the proper stance in front of the wood with the adjustment range saw idling 11 UK OPERATION ADJUSTING IDLING SPEED See Figure 24 lf the engine starts runs and accelerates but will not idle turn the idling speed screw T clockwise to increase idling speed If the chain turns at idle turn the idling speed screw T anticlockwise to reduce the idle RPM and stop the chain movement If the saw chain still moves at idling speed contact a Ryobi service dealer for adjustment and discontinue use until the repair is made A WARNING THE SAW CHAIN SHOULD NEVER TURN AT IDLE Turn the idling speed screw T anticlockwise to reduce the idle RPM and stop the chain or contact a Ryobi service dealer for adjustment and discontinue use until the repair is made Serious personal injury may result from the saw chain turning at idle OPERATING THE CHAIN BRAKE See Figures 25 and 26 Refer to Safety earlier in this manual for additional information Check the operating condition of the chain brake prior to each use 1 Start t
19. ate the tool better and more safely SYMBOL NAME EXPLANATION Indicates danger warning or caution It means fety Alert Symbol oa Salen AlereSympe attention Your safety is involved Your manual contains special messages to bring attention to potential safety concerns machine damage Read Your Operator s Manual as well as helpful operating and servicing information Please read all the information carefully to avoid injury and machine damage Wear eye hearing and head protection when operating Eye Hearing and Head Protection this equipment The SAFE T TIP nose guard on the guide bar helps prevent kick back No smoking sparks or open flame when mixing fuel or Massmoking filling the fuel tank Operate with Two Hands Hold and operate the saw properly with both hands SAFE T TIP Nose Guard One Handed Do not operate the saw using only one hand Engines produce carbon monoxide which is an odourless deadly poison Do not operate in an enclosed area Kick back Danger beware of kick back Carbon Monoxide Bar Nose Contact Avoid bar nose contact To stop the engine move the switch to the O STOP Switch position me ON to Run O OFF to Stop UK 6 SYMBOLS Use unleaded petrol intended for motor vehicle use with an octane rating of 87 R M 2 or higher Use 2 cycle oil for air cooled engines Mix the fuel mix thoroughly and also each time before refuelling Mix Petrol and O
20. ating a saw H Do not fell trees near electrical wires or buildings Leave this PUSH AND PULL operation for professionals See Figure 19 H Cut only when visibility and light are adequate for you to see clearly The reaction force is always opposite to the direction the chain is moving Thus the operator must be ready to control the PULL ADJUSTING THE CARBURETTOR A when cutting on the bottom edge of the bar and the PUSH See Figures 22 23 and 24 B when cutting along the top edge g EG f NOTE Your chainsaw has been fully factory tested Itis normalto Before adjusting the carburettor clean the air filter A and the find some slight oil residue on the saw starter cover vents B Allow the engine to warm up prior to carburettor adjustment Refer to Maintenance later in this PROPER CUTTING STANCE manual See Figure 20 The carburettor is factory set and should not require adjusting E Balance your weight with both feet on solid ground The carburettor will permit only limited adjustment of the L Low Jet and H High Jet needles Any adjustment should be E Keep left arm with elbow locked in a straight arm position done by a Ryobi service dealer B to withstand any kick back force HM Keep your body to the left of the chain line A Under no circumstances should the L Low Jet and H High Jet needles be forced outside the range of adjustment E Keep your thumb on underside of h
21. ction UK 2 GENERAL SAFETY RULES A WARNING The warnings labels and instructions found in this section of the operator s manual are for your safety Failure to follow all instructions may result in serious personal injury Safe operation of this tool requires that you read and understand this operator s manual and all labels affixed to the tool Safety is a combination of using common sense staying alert and knowing how your saw works READ ALL INSTRUCTIONS E KNOW YOUR TOOL Read the operators manual carefully Learn the saw s applications and limitations as well as the specific potential hazards related to this tool E CHAINSAWS are designed for cutting wood only E KICK BACK MAY OCCUR WHEN THE NOSE ORTIP OF THE GUIDE BAR touches an object or when the wood closes in and pinches the saw chain in the cut Tip contact in some cases may cause a lightning fast reverse reaction kicking the guide bar up and back toward the operator Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back towards the operator Either of these reactions may cause you to lose control of the saw which could result in serious personal injury DO NOT rely exclusively upon the safety devices built into your saw As a chainsaw user you should take several steps to keep your cutting jobs free from accident or injury 1 With a basic understanding of kick back you can reduce or eliminate the element of surpris
22. d petrol intended for motor vehicle use with an octane rating of 87 R M 2 or higher Do not use any type of pre mixed petrol oil from fuel service stations this includes the pre mixed petrol oil intended for use in mopeds motorcycles etc Use a high quality 2 cycle self mixing oil for air cooled engines Do not use motor vehicle oil or 2 cycle outboard oil Mix 2 oil into the petrol This is a 50 1 ratio Mix the fuel thoroughly and each time before refuelling Mix in small quantities Do not mix quantities larger than usable in a 30 day period A 2 cycle oil containing a fuel stabiliser is recommended FILLING THE TANK See Figure 6 Refer to Specific Safety Rules Refuelling earlier in this manual for additional safety information 1 a Pon Clean the surface around fuel cap to prevent contamination Loosen the fuel cap slowly Carefully pour the fuel mixture into the tank Avoid spillage Prior to replacing the fuel cap clean and inspect the gasket Immediately replace the fuel cap and hand tighten Wipe up any fuel spillage NOTE It is normal for the engine to emit smoke during and after the first use 1 Litre 2 Litres 3 Litres 4 Litres 5 Litres CHAIN OIL SYSTEM See Figure 7 Use RYOBI Bar and Chain Oil It is designed for chains and chain oilers and is formulated to perform over a wide temperature range with no dilution required Chainsaw should use approximately one tank of oil per
23. d while warm may be too tight upon cooling Check the cold tension before next use CHAIN MAINTENANCE See Figures 51 and 52 A CAUTION Check that the switch is in the STOP position before you work on the saw Use only a low kick back chain on this saw This fast cutting chain provides kick back reduction when properly maintained For smooth and fast cutting maintain the chain properly The chain requires sharpening when the wood chips are small and powdery the chain must be forced through the wood during cutting or the chain cuts to one side During maintenance of the chain consider the following H Improper filing angle of the side plate can increase the risk of a severe kick back E Raker depth gauge clearance A See Figure 55 1 Too low increases the potential for kick back 2 Not low enough decreases cutting ability If the cutter teeth hit hard objects such as nails and stones or are abraded by mud or sand on the wood have the Ryobi service dealer sharpen the chain NOTE Inspect the drive sprocket for wear or damage when replacing the chain B If signs of wear or damage are present in the areas indicated have the drive sprocket replaced by a Ryobi service dealer See Figure 56 SHARPENING THE CUTTERS See Figures 53 through 56 PARTS OF A CUTTER A Cutting Corner E Gullet B Side Plate F Heel C Depth Gauge G Rivet hole D Toe H Top Plate Be careful to file all cutters
24. e Sudden surprise contributes to accidents 2 Keep a good firm grip on the saw with both hands when the engine is running Place your right hand on the rear handle and your left hand on the front handle with your thumbs and fingers encircling the chainsaw handles A firm grip together with a stiff left arm will help you maintain control of the saw if kick back occurs 3 Make sure that the area in which you are cutting is free from obstructions DO NOT let the nose of the guide bar contact a log branch fence or any other obstruction that could be hit while you are operating the saw 4 Cut at high engine speeds Always cut with the engine running at full speed Fully squeeze the throttle trigger and maintain a steady cutting speed 5 Do not overreach or cut above chest height 6 Follow the manufacturer s sharpening and maintenance instructions for the saw chain 7 Only use replacement bars and chains specified by the manufacturer or the equivalent DO NOT OPERATE A CHAINSAW WITH ONE HAND Serious injury to the operator helpers and or Obystanders may result from one handed operation A chainsaw is intended for two handed use DO NOT OPERATE A CHAINSAW WHEN YOU ARE FATIGUED Never operate a chainsaw when you are tired or under the influence of medication drugs or alcohol USE SAFETY FOOTWEAR Wear snu fitting clothing protective gloves and eye hearing and head protection devices DO NOT STAND ON ANY UNSTABL
25. e steps 1 9 but do not attempt to start in the full choke position skip step 5 Push and release primer bulb 7 times Pull the choke out and push back it in to the original run position STOPPING THE ENGINE See Figure 15 Release the throttle trigger and let the engine return to idle To stop the engine move the ignition switch to the O stop position L Do not put the chainsaw on the ground when the chain is still moving For additional safety set the chain brake when the saw is not in use In the event that the ignition switch will not stop the saw pull the choke lever out to the fully extended position Full Choke l and engage chain brake to stop the engine If the ignition switch will not stop the saw when set to the O stop position have the ignition switch repaired before using the chainsaw again to prevent unsafe conditions or serious injury Important When you finish using the saw relieve tank pressures by loosening the CHAIN OIL and FUEL MIX caps Then retighten the caps Allow the engine to cool before storing PREPARING FOR CUTTING PROPER CLOTHING FOR SAFETY See Figure 16 E Wear close fitting clothing A Always wear heavy long trousers B boots C and gloves D Do not wear jewellery shorts sandals or go barefoot Do not wear loose fitting clothing which could be drawn into the engine or catch the chain or undergrowth Wear overalls jeans or leggings made of cut resistant material
26. he engine and grasp the front and rear handles securely with both hands 2 Pull the throttle trigger to bring the chainsaw up to full speed Using the back of your left hand engage the chain brake A by pushing the chain brake lever hand guard toward the bar while the chain is rotating rapidly See Figure 25 NOTE The chain brake should engage and stop the chain immediately If not stop the saw by placing the ignition switch in the O stop position Take the saw to a Ryobi service dealer for repair and discontinue use until the repair is made 3 Reset the chain brake back into the RUN position B by grasping the right hand side from operator s position of the chain brake lever hand guard and pull toward the front handle until you hear a click See Figure 26 FELLING TREES HAZARDOUS CONDITIONS See Figure 27 A WARNING Do not fell trees during periods of high wind or heavy precipitation Wait until the hazardous weather has ended When felling a tree it is important that you heed the following warnings to prevent possible serious injury E Wear eye hearing and head protection A when operating this equipment H Do not cut down trees having an extreme lean or large trees with rotten or dead limbs loose bark or hollow trunks Have these trees pushed or dragged down with heavy equipment then cut them up UK 12 E Consider the distribution and weight of heavy limbs B Clear out the undergrowth aro
27. he tip through the cut make boring cuts or cut logs bigger than the bar length should reinstall the SAFE T TIP as soon as those cuts are complete When cutting without the SAFE T TIP the user must use proper techniques as shown in the manual to avoid kick back NOTE Refer to Maintenance later in this manual for instructions on reinstalling the SAFE T TIP nose guard LOW KICK BACK SAW CHAIN A low kick back saw chain is a chain that has met the kick back performance requirements of ANSI B175 1 2000 American National Standard for Power Tools Petrol Powered Chainsaws Safety Requirements when tested on the representative sample of chainsaws below 3 8 c i d specified in ANSI B175 1 2000 UK The rakers depth gauges ahead of each cutter can minimise the force of a kick back reaction by preventing the cutters from digging in too deeply at the kick back zone Only use replacement chain that is equivalent to the original chain or has been certified as a low kick back chain As saw chains are sharpened they lose some of the low kick back qualities and extra caution is required GUIDE BARS Generally guide bars with small radius tips have somewhat lower kick back potentials When making a replacement be sure to order one of the Ryobi bars listed for your saw in this operators manual The proper size SAFE T TIP nose guard comes installed on the bar Use only guide bars that have a provision for mounting the SAFE T TIP
28. ich is bent under tension by other wood so that it springs back if the wood holding it is cut or removed On a fallen tree a rooted stump has a high potential of springing back to the upright position during the bucking cut to separate the log from the stump Watch out for spring poles they are dangerous A WARNING Spring poles are dangerous and could strike the operator causing the operator to lose control of the chainsaw This could result in severe or fatal injury to the operator MAINTENANCE ASSEMBLING THE BAR AND CHAIN See Figures 3 and 38 through 47 A DANGER Never start the engine before installing the guide bar chain drivecase cover and clutch drum Without all these parts in place the clutch can fly off or explode exposing the user to possible serious injury A WARNING To avoid serious personal injury read and understand all the safety instructions in this section 1 Always place the switch in the stop O position before you work on the saw 2 Make sure the chain brake is not set by pulling the chain brake lever hand guard towards the front handle to the RUN position A See Figure 3 3 Wear gloves when handling the chain and bar These components are sharp and may contain burrs 4 Remove the bar mounting nuts B using a combination wrench C or a 5 8 in spanner 5 Remove the clutch cover D and the outer guide bar plate E 6 Lay out the saw chain in a loop and straighten any ki
29. il SAVE THESE INSTRUCTIONS SPECIFICATIONS Weight No Dar chain tuel or Oll ccccc00s ccccctvveevei ce tinetisen cenit sarie Ea ANANASA EAN REAR 4 4 kg 9 7 Ibs Fueltank CAPACHY sis sesccceesiaietancctecaig n a E AEA EE a E 575 cm 19 4 oz Oiltank capacity wesiatescwseetiaeied ceca cp teta dace eye ctaaedcuence sacendh evatdeaess faubeiebesa eh sauce tnccndee ease sherseracis neadaandovespaedeeee 350 cm 11 8 oz Barong ec cctcusies tone cevessaennedepecuuaesedeceeay sani yecegeesvendeneneuat O OES 33 41 cm 12 16 in CTSA NCCI E os na ect eaten cree catscry E ots pucectetatien E E E 9 5 mm 375 in CAIN AUS acdc ewes ceca sence tecetaeys a a a aeS EA Ne OENE eae EN E EENES EEE 1 27 mm 050 in Chan typen isea a e A AA E E A E a A a cated Semi Chisel LoPro Brive Sproo kO entara seen thbday eee behaais cee nptale detcee E Sun phates E E A 6 tooth Engine displacement escrase innara ear nna A S r ANAKATAA A ATEA AEE NAA OTENE AERA AS 33 cm 2 0 cu in Maximum engine power ISO 7293 00 eeeeeeeeneeeeeeneeeeeeneeeeeeaeeeeeeaeeeeeeeeeeeeeaeeeeseaeeeeseaeeesceaeeeseeeeeeneneeeeseniees 1 33 kW 1 78HP Maximum engine speed with attachment sesssssesssssrrsessrnnnasssnnannannstnannanstnnannannnnannantnnannannatnaanannnnnnan nananman 12 500 min IDS SNGIME Speedi tosin ianea aai aaa a a aE a E a a aaa T RA 2 800 3 400 min Sound pressure level ISO 7182 n esssssessisesssessssersrirtssirterintsrrtttsttntsttnteti
30. nd chamber as possible NOTE Be sure to pull the choke rod out to keep the carburettor from being contaminated Remove the screw C securing the air filter D Position a flat screw driver between the tabs and twist as shown in the illustration Lift the air filter off the air filter base MAINTENANCE Choose one of the following cleaning options 9 To lightly clean tap the filter against a smooth flat surface to dislodge most saw dust and dirt particles 10 For a more thorough cleaning clean in warm soapy water rinse and let dry completely NOTE An alternative method is to clean the filter with compressed air always wear eye protection to avoid eye injury 11 Reinstall the air filter making sure that the tabs on the air filter are located in channels on the air filter bottom before tightening filter retainer screw H Clean the pre filter D every 25 tanks of fuel or sooner if required Remove the cylinder cover B starter assembly E and the fan housing baffle F for access to the pre filter in the engine housing NOTE If you use an air hose for drying blow through both sides of filter A CAUTION Never run the engine without the air filter serious damage could result Make sure the air filter is correctly placed in the air filter cover before reassembly CLEANING THE STARTER UNIT See Figure 67 Use a brush or compressed air to keep the cooling vents of the starter assembly free
31. nks The cutters F should face in the direction of chain rotation G If they face backwards turn the loop over 7 Place the chain drive links H into the bar groove I Position the chain so there is a loop at the back of the bar 9 Hold the chain in position on the bar and place the loop around the sprocket J 10 Fit the bar flush against the mounting surface so that the bar studs K are in the long slot of the bar NOTE When placing the bar on the bar studs ensure that the adjusting pin L is in the chain tension pin hole 11 Replace the outer guide bar plate ensuring that the bar pin groove is at the bottom with the upper and lower edges angled away from the guide bar od 12 Replace the clutch cover and bar mounting nuts UK 13 Tighten the bar mounting nuts finger tight only The bar must be free to move for tension adjustment 14 Remove all slack from the chain by turning the chain tensioning screw M clockwise until the chain seats snugly against the bar with the drive links in the bar groove 15 Lift the tip of the guide bar up to check for sagging N 16 Release the tip of the guide bar and turn the chain tensioning screw 1 2 turn clockwise Repeat this process until sagging does not exist 17 Hold the tip of the guide bar up and tighten the bar mounting nuts O securely The chain is correctly tensioned when there is no sagging on the underside of the guide bar the chain is snug but it can be tu
32. nnattnnsrnntattnnstnnnsrennsennnnenenne LpA av 102 dBA Sound power level ISO Q207 crisissen aa aa aana aaa aa E e EAA aA ENEAS EE EENS GA LwA av 112 dBA Vibration ISO 7505 Front RANGO sai E A S tae es daalet ccgasSeescnevenavogutietaee 4 m s Rear Mandle ssiri a eae eS Ea aA RAAN aG EEEN a T EAEE Ar a EE A 5 m s FEATURES See Figure 1 A Front hand guard Chain Brake B Front handle C Cylinder cover D Primer bulb E Choke Lever F Chain G SAFE T TIP H Guide Bar I Chain Catcher J Trigger Release K Throttle Lock Button L Chain Oil Cap M Silencer N Carburettor Adjustment O Rear handle P Throttle Trigger Q Fuel Mix Cap R On Off Switch S Starter Fan Housing T Starter Grip OPERATION For your safety study this entire manual before operating the saw Pay particular attention to the precautions and instructions listed in the operator s manual A WARNING The warnings and instructions in this section of the operators manual are for your safety and to prevent serious personal injury UNDERSTANDING YOUR CHAINSAW SAFETY DEVICES SAFE T TIP ANTI KICK BACK NOSE GUARD See Figure 2 The SAFE T TIP A prevents kick back because it covers the tip of the bar where rotational kick back is generated Inexperienced persons should never attempt to cut when the SAFE T TIP has been removed from the bar tip Users such as professional loggers who need to draw t
33. or ones that contain cut resistant inserts Secure hair so that it is above shoulder level M Wear non slip safety footwear and heavy duty gloves to improve your grip and to protect your hands E Wear eye E hearing F and head G protection when operating this equipment PROPER GRIP ON HANDLES See Figures 17 and 18 Refer to Specific Safety Rules Proper Clothing for Safety earlier in this manual for appropriate safety equipment H Wear non slip gloves for maximum grip and protection OPERATION E Hold the saw firmly with both hands Always keep your LEFT 2 Accelerate the engine to full throttle just before entering the HAND on the front handle and your RIGHT HAND on the rear cut by squeezing the throttle trigger handle so that your body is to the left of the chain line 3 Begin cutting with the saw against the log 4 Keep the engine at full throttle the entire time you are cutting A WARNING 5 Allow the chain to cut for you exert only light downward pressure Forcing the cut could result in damage to the bar Never use a left handed cross handed grip or any stance chain or engine that would place your body or arm across the chain line f P y y 6 Release the throttle trigger as soon as the cut is completed allowing the engine to idle Running the saw at full throttle without a cutting load can result in unnecessary wear to the chain bar and engine H Maintain a proper grip on the saw whenever the
34. owly pull the starter grip out for a short distance until you feel the starter engage then briskly pull straight up Do not pull to the end of the rope this can damage the starter Hold onto the grip during rewinding Pull the starter rope until the first firing of the engine is heard no more than five pulls NOTE A new unit may require additional pulls Push choke lever to half choke position J 10 Pull starter until engine runs NOTE Allow the saw to run in this position 15 30 seconds depending upon the temperature 11 Push choke lever all the way IN K 12 SQUEEZE and release the throttle trigger Depress the throttle trigger which releases the trigger lock button Squeeze and release the throttle trigger to let the engine idle 13 Move chain brake to RUN position Place chain brake lever hand guard into the RUN position Refer to Operation Operating the Chain Brake later in this manual for additional information NOURA UK A CAUTION Failure to release partial throttle when chain brake lever is in the brake position will result in serious damage to the unit Never squeeze and hold the throttle trigger while the chain brake is in the brake position Now you are ready to pick up the saw Use the proper grip for both handles refer to Operation Proper Grip on Handles later in this manual for additional information STARTING A WARM ENGINE Follow the instructions for starting a cold engin
35. preventing chain contact with solid objects at the nose of the bar the SAFE T TIP also helps keep the chain away from abrasive surfaces such as the ground Keep it on the right hand side of the bar where it will be between the chain and the ground during flush with ground cutting The mounting screw requires a 5 16 in spanner or adjustable spanner to achieve the recommended tightness of 4 5 Nm 35 45 in Ib A tightness within this range can be achieved by using the following method 1 Tighten the screw with your finger 2 Tighten the screw an additional 3 4 of a turn using a spanner C MOUNTING THE SAFE T TIP NOSE GUARD See Figures 62 and 63 1 Mount the SAFE T TIP on the bar nose 2 Fit the locking rivet or tab in the recessed hole in the guide bar Tighten the screw with your finger From the finger tight position tighten the screw an additional 3 4 of a turn using a spanner CLEANING THE AIR FILTER See Figures 64 65 and 66 NOTE Always clean the air filter before making any mixture adjustments of the carburettor 1 For access to the air filter and carburettor area loosen the three screws A holding the cylinder cover B Activate chain brake Lift the front of the cylinder cover past chain brake lever Lift the back of the cylinder cover past the handle oO Pen Before removing the air filter from the carburettor blow or brush as much loose dirt and sawdust from around the carburettor a
36. re fuel in a container approved for petrol Mix fuel outdoors where there are no sparks or flames E Select bare ground stop the engine and allow it to cool before refuelling E Loosen the fuel cap slowly to release pressure and to keep fuel from escaping around the cap E Tighten the fuel cap securely after refuelling E Wipe spilled fuel from the unit Move 15 m 50 ft away from refuelling site before starting engine E Never attempt to burn off spilled fuel under any circumstances BASIC PRECAUTIONS IN THE CUTTING WORK AREA E Do not operate a chainsaw in a tree E Do not cut from a ladder this is extremely dangerous E Keep bystanders and animals out of the work area Do not allow other persons to be nearby during starting or cutting with the chainsaw NOTE The size of the work area depends on the job being performed as well as the size tree or workpiece involved For example felling a tree requires a larger work area than making other cuts i e bucking cuts etc PUSH AND PULL The reaction force is always opposite to the direction the chain is moving Thus the operator must be ready to control the PULL when cutting on the bottom edge of the bar and the PUSH when cutting along the top edge NOTE Your chainsaw has been fully factory tested It is normal to find some slight oil residue on the saw MAINTENANCE PRECAUTIONS Never operate a chainsaw that is damaged improperly adjusted or is not completely
37. rned by hand without binding See Figure 47 Ensure that the chain brake is not set NOTE If chain is too tight it will not rotate Loosen the bar nuts slightly and turn the tension adjuster 1 4 turn anticlockwise Lift the tip of the guide bar up and retighten the bar nuts securely Ensure that the chain will rotate without binding ADJUSTING THE CHAIN TENSION See Figures 48 49 and 50 A WARNING Never touch or adjust the chain while the motor is running The saw chain is very sharp Always wear protective gloves when performing maintenance on the chain 1 Stop the engine before setting the chain tension 2 Make sure the guide bar nuts are loosened to finger tight turn the chain tensioner clockwise to tension the chain NOTE A cold chain is correctly tensioned when there is no slack on the underside of the guide bar the chain is snug and it can be turned by hand without binding 3 Retension the chain whenever the flats on the drive links A hang out of the bar groove NOTE During normal saw operation the temperature of the chain increases The drive links of a correctly tensioned warm chain B will hang approximately 1 25 mm 0 050 in out of the bar groove To help determine the correct warm chain tension the tip of the combination wrench C can be used as a guide MAINTENANCE NOTE New chain tends to stretch check the chain tension frequently and tension as required A CAUTION A chain tensione
38. ross threading will seriously damage the product CLEANING THE SPARK ARRESTING SILENCER See Figure 72 The silencer A is equipped with a spark arrester screen B A faulty spark arrester screen can create a fire hazard Through normal use the screen can become dirty and should be inspected weekly and cleaned as required Always keep the silencer and spark arrester on your saw in good condition A WARNING Silencer surfaces are very hot during and after operation of the chainsaw keep all body parts away from the silencer Serious burns may occur if contact is made with the silencer 1 Allow the silencer to cool 2 The spark arrester screen B is retained by the deflector C Remove the three nuts D and deflector retaining screw E to access the spark arrester screen 3 Replace the spark arrester screen if it is cracked or otherwise deteriorated CHAIN BRAKE See Figures 73 and 74 mM Remove the clutch cover and clean the chain brake components Check wear on the brake band A If brake band is worn or deformed have it serviced at your nearest authorised service dealer The band thickness should not be less than 0 60 mm 0 024 in or worn halfway through Always keep the chain brake mechanism clean B and lightly lubricate the linkage C Always test the chain brake performance after servicing or cleaning Refer to Operation Operating Chain Brake earlier in this manual for additional informa
39. rrect top plate angle E B LESS THAN 30 for cross cutting E C MORE THAN 30 feathered edge dulls quickly SIDE PLATE ANGLE See Figure 58 E D CORRECT 80 Produced automatically if you use the correct diameter file in the file holder E HOOK Grabs and dulls quickly increases the potential of KICK BACK Results from using a file with a diameter too small or a file held too low F BACKWARD SLOPE Needs too much feed pressure causes excessive wear to the bar and chain Results from using a file with a diameter too large or file held too high UK MAINTENANCE MAINTAINING DEPTH GAUGE CLEARANCE See Figures 51 59 and 60 HM Maintain the depth gauge A at a clearance of 0 6 mm 0 025 in Use a depth gauge tool for checking the depth gauge clearances Every time the chain is filed check the depth gauge clearance Use a flat file B not provided and a depth gauge jointer C not provided to lower all gauges uniformly Use a 0 6 mm 0 025 in depth gauge jointer After lowering each depth gauge restore original shape by rounding the front D Be careful not to damage adjoining drive links with the edge of the file Depth gauges must be adjusted with the flat file in the same direction the adjoining cutter was filed with the round file Use care not to contact cutter face with flat file when adjusting depth gauges MAINTAINING THE GUIDE BAR See Figure 61 A CA
40. ssure upward During underbucking the saw will tend to push back at you B Be prepared for this reaction and hold the saw firmly to maintain control LIMBING AND PRUNING See Figure 36 E Work slowly keeping both hands on the saw with a firm grip Maintain secure footing and balance E Keep the tree between you and the chain while limbing Cut from the side of the tree opposite the branch you are cutting E Do not cut from a ladder this is extremely dangerous Leave this operation for professionals E Do not cut above chest height as a saw held higher is difficult to control against kick back A 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 E When pruning trees it is important not to make the flush cut next to the main limb or trunk until you have cut off the limb further out to reduce the weight This prevents stripping the bark from the main member 1 Underbuck the branch 1 3 through for your first cut A 2 Overbuck the branch to drop it B 3 Finish by cutting smoothly and neatly against the main member C so the bark will grow back to seal the wound A WARNING If the limbs to be pruned are above chest height hire a professional to perform the pruning UK OPERATION CUTTING SPRING POLES See Figure 37 A spring pole A is any log branch rooted stump or sapling wh
41. tank of fuel UK OPERATION NOTE Do not use dirty used or otherwise contaminated oils Damage may occur to the oil pump bar or chain 1 Carefully pour the bar and chain oil into the tank 2 Fill the oil tank every time you fuel the engine STARTING THE ENGINE See Figure 8 A WARNING Keep your body to the left of the chain line Never straddle the saw or chain or lean over past the chain line 1 Place the chainsaw on level ground and ensure that no objects or obstructions are in immediate vicinity that could come in contact with the bar and chain 2 Hold the front handle firmly with the left hand and put your right foot onto the base of the rear handle STARTING A COLD ENGINE See Figure 3 and 8 through 14 3 Move the chain brake to the BRAKE position B See Figure 3 NOTE Set the chain brake by pushing the chain brake lever hand guard forward towards the bar to the brake position Refer to Operation Operating the Chain Brake later in this manual for additional information Set the ignition switch to the RUN I position A Fully press and release the PRIMER BULB C 7 times Pull CHOKE D lever all the way OUT to full position E Engage trigger release F While squeezing both the trigger release and throttle trigger G push in the throttle lock button H Release the throttle trigger This latches the trigger for starting 8 Pull STARTER I until engine attempts to start Sl
42. tion Check and if damaged replace the chain catcher D UK MAINTENANCE STORING THE CHAINSAW 4 Clean all foreign material from the saw 1 MONTH OR LONGER 5 Store it in a well ventilated place that is inaccessible to children 1 Drain all fuel from tank into a container approved for petrol 2 Run the engine until it stops This will remove all fuel oil mix that could become stale and leave varnish and gum in the fuel system Abide by all government and local regulations for the safe storage and handling of petrol Excess fuel should be used in other 2 cycle engine powered equipment NOTE Keep away from corrosive agents such as garden chemicals and de icing salts 9 Drain all bar and chain oil from tank into a container approved for oil BAR AND CHAIN COMBINATIONS RECOMMENDED BAR AND CHAIN COMBINATIONS FOR 0 375 LOW PROFILE 0 050 GAUGE Length of Bar Guide Bar Part Number Chain Part Number 356 mm 14 in 984313001 H1N7252A4 TROUBLESHOOTING PROBLEM POSSIBLE CAUSE SOLUTION Engine will not start 1 No spark 1 Check spark Remove air filter cover Remove sparking Make sure ignition switch plug from cylinder Reattach the sparking plug wire and is in start position I lay sparking plug on top of cylinder with the metal part of plug touching the cylinder Pull the starter rope and watch for spark at sparking plug tip If there is no spark repeat test with a new sparking plug 2 Flooded engine
43. treat approximately 135 from the planned line of fall A 2 Consider the force and direction of the wind the lean and balance of the tree and the location of large limbs These things influence the direction in which the tree will fall Do not try to fell a tree along a line different from its natural line of fall B 3 Cut a notch about 1 3 the diameter of the trunk in the side of the tree C Make the notch cuts so they intersect at right angles to the line of fall This notch should be cleaned out to leave a straight line To keep the weight of the wood off the saw always make the lower cut of the notch before the upper cut 4 Make the back cut D level and horizontal and at a minimum of 2 inches 5 cm above the horizontal cut of the notch NOTE Never cut through to the notch Always leave a band of wood between the notch and back cut approximately 2 inches 5 cm or 1 10 the diameter of the tree This is called a hinge or hingewood E It controls the fall of the tree and prevents slipping or twisting or shoot back of the tree off the stump OPERATION On large diameter trees stop the back cut before it is deep enough for the tree to either fall or settle back on the stump Then insert soft wooden or plastic wedges F into the cut so they do not touch the chain Drive wedges in little by little to help jack the tree over When bucking or felling with a wedge it may be necessary to remove the SAF
44. und the tree to be felled C E Do not cut trees near electrical wires or buildings D M Consider the direction in which the tree leans E HM Check the tree for damaged or dead branches that could fall and hit you during felling F HM Periodically glance at the top of the tree during the back cut to assure the tree is going to fall in the desired direction E Keep all bystanders at a safe distance G at least twice the height of the tree E Prepare a path of safe retreat H If the tree starts to fall in the wrong direction or if the saw gets caught or hung up during the fall leave the saw and save yourself Consider the wind direction before felling a tree H Do not fell trees near power lines or near buildings which could be struck by falling limbs or the tree itself E The chainsaw operator should keep on the uphill side of the terrain as the tree is likely to roll or slide downhill after it is felled E Remove dirt stones loose bark nails staples and wire from the tree where felling cuts are to be made A WARNING Do NOT fell trees near power lines or near buildings which could be struck by falling limbs or the tree itself PROPER PROCEDURE FOR TREE FELLING See Figure 28 through 31 1 Pick your escape route or routes in case the intended route is blocked Clear the immediate area around the tree and make sure there are no obstructions in your planned path of retreat Clear the path of safe re
45. uns Carburettor requires adjustment Turn idling speed screw T clockwise to increase idling and accelerates but will speed If chain turns at idle turn idling speed screw T not idle anticlockwise to decrease speed Wear protective equipment and observe all safety instructions See Figure 24 Engine starts and runs 1 Chain oil tank empty 1 Oil tank should be filled every time fuel tank but chain is not rotating is filled 2 Check chain tension for overtight 2 Tension chain per instructions in Maintenance condition Adjusting the Chain Tension earlier in this manual 3 Check for oiler function 3 Run at half throttle 30 to 45 seconds Stop saw and check for oil dripping from SAFE T TIP and guide bar If oil is present the chain may be dull or bar may be damaged If no oil is on the SAFE T TIP contact a Ryobi service dealer Bar and chain running hot 1 Chain brake engaged 1 Release chain brake refer to Operation Operating and smoking Chain Brake earlier in this manual 2 Chain tension too tight 2 Tension chain per instructions in Maintenance Adjusting the Chain Tension earlier in this manual 3 Check guide bar and chain 3 Refer to Maintenance Assembling the Bar and assembly Chain earlier in this manual 4 Check guide bar and chain for 4 Inspect guide bar and chain for damage damage NOTE The carburettor adjustment needle s are equipped with plastic cap s that prevent
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