OPERATOR’S MANUAL 18 in. 40cc CHAIN SAW RY10532 Your chain saw has been engineered and manufactured to our high standard for dependability, ease of operation, and operator safety. When properly cared for, it will give you years of rugged, trouble-free performance. WARNING: To reduce the risk of injury, the user must read and understand the operator’s manual before using this product. Thank you for your purchase.
TABLE OF CONTENTS Introduction ..................................................................................................................................................................... 2 � General Safety Rules .................................................................................................................................................... 3-4 � Specific Safety Rules..............................................................................................................
GENERAL SAFETY RULES WARNING: Read and understand all instructions. Failure to follow all instructions listed below, may result in electric shock, fire and/or serious personal injury. READ ALL INSTRUCTIONS Know your tool. Read the operator’s manual carefully. Learn the saw’s applications and limitations as well as the specific potential hazards related to this tool.
GENERAL SAFETY RULES � Do not adapt the powerhead to a bow guide or use it to power any attachments or devices not listed for the saw. � The gas powered saw (or electrically powered saw) is classified by CSA as a Class 1C (or Class 2C) saw. It is intended for infrequent use by homeowners, cottagers, and campers, and for such general applications as clearing, pruning, cutting firewood, etc. It is not intended for prolonged use.
SYMBOLS Some of the following symbols may be used on this tool. Please study them and learn their meaning. Proper interpretation of these symbols will allow you to operate the tool better and safer. SYMBOL NAME DESIGNATION/EXPLANATION Safety Alert Precautions that involve your safety. Read The Operator’s Manual To reduce the risk of injury, user must read and understand operator’s manual before using this product.
SYMBOLS The following signal words and meanings are intended to explain the levels of risk associated with this product. SYMBOL SIGNAL MEANING DANGER: Indicates an imminently hazardous situation, which, if not avoided, will result in death or serious injury. WARNING: Indicates a potentially hazardous situation, which, if not avoided, could result in death or serious injury. CAUTION Indicates a potentially hazardous situation, which, if not avoided, may result in minor or moderate injury.
GLOSSARY OF TERMS Bucking The process of cross cutting a felled tree or log into lengths. Kickback (Rotational) The rapid upward and backward motion of the saw which can occur when the moving saw chain near the upper portion of the tip of the guide bar contacts an object, such as a log or branch. Chain Brake A device used to stop the saw chain. Low-Kickback Chain A chain that complies with the kickback performance requirements of ANSI B175.1 when tested on a representative sample of chain saws.
FEATURES PRODUCT SPECIFICATIONS Bar length ....................................................................................................................................................................... 18 in. Chain pitch ................................................................................................................................................................. .375 in. Chain gauge ...................................................................................................
FEATURES KNOW YOUR CHAIN SAW GUIDE BAR See Figure 1. The safe use of this product requires an understanding of the information on the tool and in this operator’s manual as well as a knowledge of the project you are attempting. Before use of this product, familiarize yourself with all operating features and safety rules. The factory-equipped guide bar has a small radius tip that offers a somewhat lower kickback potential.
OPERATION FUEL AND REFUELING WARNING: HANDLING THE FUEL SAFELY Do not allow familiarity with tools to make you careless. Remember that a careless fraction of a second is sufficient to inflict serious injury. WARNING: Check for fuel leaks. If any are found, correct them before using the saw to prevent fire or burn injury. WARNING: Always handle fuel with care; it is highly flammable. Always wear safety goggles or safety glasses with side shields when operating this tool.
OPERATION FILLING THE FUEL TANK See Figure 2. Clean the surface around the 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 o-ring. Immediately replace the fuel cap and hand tighten. Wipe up any fuel spillage. Fig. 2 NOTE: It is normal for the engine to emit smoke during and after the first use. ADDING BAR AND CHAIN OIL See Figure 3.
OPERATION STARTING THE ENGINE See Figures 6 - 10. The starting method differs depending on whether the engine is cold or warm. RUN POSITION WARNING: Keep your body to the left of the chain line. Never straddle the saw or chain, or lean over past the chain line. Place the chain saw on level ground and ensure that no objects or obstructions are in the immediate vicinity that could come in contact with the bar and chain.
OPERATION 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. To Start a Warm Engine: IGNITION SWITCH IN THE STOP POSITION Set the ignition switch to the RUN ( I ) position. Make sure the chain brake is in the run position by pulling back on the lever/hand guard. Fig. 11 Fully press and release the primer bulb 7 times.
OPERATION ADJUSTING IDLE SPEED See Figure 13. If the engine starts, runs, and accelerates, but will not idle, turn the idle speed screw “T” clockwise to increase idle speed. If the chain turns at idle, turn the idle speed screw “T” counterclockwise to reduce the idle RPM and stop the chain movement. If the saw chain still moves at idle speed, contact an authorized service center for adjustment and discontinue use until the repair is made.
OPERATION KICKBACK PRECAUTIONS KICKBACK DANGER ZONE See Figures 15 - 16. Rotational kickback occurs when the moving chain contacts an object at the Kickback Danger Zone 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 can cause loss of control, which can result in serious injury. Fig. 15 PREPARING FOR CUTTING ROTATIONAL KICKBACK PROPER GRIP ON HANDLES See Figure 17.
OPERATION PROPER CUTTING STANCE See Figure 18. Balance your weight with both feet on solid ground. THUMB ON UNDERSIDE OF HANDLE BAR Keep left arm with elbow locked in a “straight arm” position to withstand any kickback force. CHAIN LINE STRAIGHT ARM Keep your body to the left of the chain line. Keep your thumb on underside of handlebar. WORK AREA PRECAUTIONS See Figure 19. Cut only wood or materials made from wood; no sheet metal, no plastics, no masonry, no non-wood building materials.
OPERATION FELLING TREES PLANNED LINE OF FALL HAZARDOUS CONDITIONS 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. � Do not cut down trees having an extreme lean or large trees with rotten limbs, loose bark, or hollow trunks. Have these trees pushed or dragged down with heavy equipment, then cut them up.
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 into the cut so they do not touch the chain. Drive wedges in, little by little, to help jack the tree over. HINGE When bucking or felling with a wedge, it may be necessary to remove the SAFE-T-TIP anti-kickback device to allow the bar to be drawn through the cut. After you complete the cut, reinstall the tip immediately.
OPERATION BUCKING WITH A WEDGE See Figure 26. If the wood diameter is large enough for you to insert a soft bucking wedge 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-kickback device to allow the bar to be drawn through the cut. After you complete the cut, reinstall the tip. WEDGE BUCKING LOGS UNDER STRESS See Figure 27.
OPERATION UNDERBUCKING See Figure 29. Begin on the underside of the log with the top of the saw against the log; exert light pressure upward. During underbucking, the saw will tend to push back at you. Be prepared for this reaction and hold the saw firmly to maintain control. LIMBING AND PRUNING See Figures 30 - 31. Work slowly, keeping both hands on the saw with a firm grip. Maintain secure footing and balance. UNDERBUCKING � Keep the tree between you and the chain while limbing.
MAINTENANCE WARNING: RUN POSITION When servicing, use only identical replacement parts. Use of any other parts may create a hazard or cause product damage. WARNING: Always wear safety goggles or safety glasses with side shields during power tool operation or when blowing dust. If operation is dusty, also wear a dust mask. Fig. 33 GENERAL MAINTENANCE Avoid using solvents when cleaning plastic parts.
MAINTENANCE Lay out the new saw chain in a loop and straighten any kinks. The cutters should face in the direction of chain rotation. If they face backwards, turn the loop over. Place the chain drive links into the bar groove as shown. SPROCKET Position the chain so there is a loop at the back of the bar. Hold the chain in position on the bar and place the loop around the sprocket.
MAINTENANCE Fit the bar flush against the mounting surface so that the bar studs are in the long slot of the bar. NOTE: When placing the bar on the bar studs, ensure that the adjusting pin is in the chain tension pin hole. Replace the clutch cover and bar mounting nuts. Finger-tighten the bar mounting nuts. The bar must be free to move for tension adjustment.
MAINTENANCE Retension the chain whenever the flats on the drive links 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 will hang approximately .050 in. out of the bar groove. The tip of the combination wrench can be used as a guide to help determine the correct warm chain tension. ≈ .050 in. (1.25 mm) NOTE: New chains tend to stretch; check the chain tension frequently and tension as required. Fig.
MAINTENANCE SHARPENING THE CUTTERS CUTTING CORNER See Figures 48 - 51. Be careful to file all cutters to the specified angles and to the same length, as fast cutting can only be obtained when all cutters are uniform. SIDE PLATE TOP PLATE DEPTH GAUGE RIVET HOLE WARNING: HEEL The saw chain is very sharp. Always wear protective gloves when performing maintenance to the chain to prevent serious personal injury. TOE GULLET Fig. 48 Tension the chain prior to sharpening.
MAINTENANCE TOP PLATE FILING ANGLE MAINTAINING DEPTH GAUGE CLEARANCE See Figure 52. CORRECT 30° – file holders are marked with guide marks to align file properly to produce correct top plate angle. See Figures 54 - 56. Maintain the depth gauge at a clearance of .025 in. Use a depth gauge tool for checking the depth gauge clearances. LESS THAN 30° – for cross cutting. Every time the chain is filed, check the depth gauge clearance. MORE THAN 30° – feathered edge dulls quickly.
MAINTENANCE MAINTAINING THE GUIDE BAR See Figure 57. BAR GROOVE CAUTION: Make sure the chain has stopped before you do any work on the saw. LUBRICATING HOLE 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.
MAINTENANCE CLEANING THE AIR CLEANER KNOB See Figures 60 - 61. Activate chain brake. Remove the air cleaner cover by rotating the knob counterclockwise. AIR CLEANER COVER Remove the air cleaner. Tap a corner of the cleaner against a hard surface to dislodge dust from the cleaner surface. Using a flat blade screwdriver, pry apart the cleaner cover.
MAINTENANCE ADJUSTING THE CARBURETOR AIR CLEANER See Figures 62 - 64. Before adjusting the carburetor: Use a brush or compressed air to clean the starter cover vents. Clean the air cleaner. Refer to Cleaning the Air Cleaner in the Maintenance section of this manual. Allow the engine to warm up prior to adjustment of engine idle speed. Fig. 62 WARNING: Weather conditions and altitude may affect carburetion. Do not allow bystanders close to the chain saw while adjusting the carburetor.
MAINTENANCE CARBURETOR ANTI-FREEZE MECHANISM AIR CLEANER COVER See Figures 65 - 66. The chain saw is designed with a ventilation hatch on the right side of the cylinder cover which allows warm air to be supplied from the engine to the carburetor to help prevent icing under colder operating conditions. Operating the chain saw in temperatures from 32ºF to 41ºF (0ºC to 5ºC) at times of high humidity may result in ice forming within the carburetor.
MAINTENANCE CHECKING THE FUEL FILTER See Figure 69. Check the fuel filter periodically. Replace it if contaminated or damaged. CLEAN FLYWHEEL FINS REPLACING THE SPARK PLUG See Figure 70. This engine uses a Champion RZ7C or NGK CMR7H spark plug with .025 in. (0,64 mm) electrode gap. Use an exact replacement and replace every 50 hours or more frequently, if necessary. Loosen the spark plug by turning it counterclockwise with a wrench. Fig. 68 Remove the spark plug.
MAINTENANCE INSPECTING AND CLEANING CHAIN BRAKE See Figures 72 - 73. Remove the clutch cover and clean the chain brake components. Check wear on the brake band and replace if worn or deformed. The band thickness should not be less than 0.024 in., or worn halfway through. CLEAN THE CHAIN BRAKE Always keep the chain brake mechanism clean and lightly lubricate the linkage. BRAKE BAND Always test the chain brake performance after servicing or cleaning.
BAR AND CHAIN COMBINATIONS Chain specifications: .375 in. pitch, .05 in. chain gauge, 62 drive links, low-profile full skip tooth Length of Bar 18 in. Guide Bar Part Number 308639001 Chain Part Number 901431001 TROUBLESHOOTING Problem Engine will not start. [Make sure ignition switch is in the RUN ( l ) position.] Possible Cause Solution No spark. Check spark. Remove air filter cover. Remove spark plug from cylinder.
TROUBLESHOOTING Problem Bar and chain running hot and smoking. Engine starts and runs, but chain is not rotating. Possible Cause Solution Chain oil tank empty. Oil tank should be filled every time fuel tank is filled. Chain tension is too tight. Tension chain per instructions in Adjusting the Chain Tension in the Maintenance section of this manual. Oiler is not functioning. Run at half throttle 30 to 45 seconds. Stop saw and check for oil dripping from SAFE-T-TIP and guide bar.
WARRANTY LIMITED WARRANTY STATEMENT B. Wear items – Bump Knobs, Outer Spools, Cutting Lines, Inner Reels, Starter Pulleys, Starter Ropes, Drive Belts, Tines, Felt Washers, Hitch Pins, Mulching Blades, Blower Fans, Blower and Vacuum Tubes, Vacuum Bag and Straps, Guide Bars, Saw Chains Techtronic Industries North America, Inc.
WARRANTY THE FOLLOWING CALIFORNIA AIR RESOURCES BOARD (CARB) STATEMENT ONLY APPLIES TO MODEL NUMBERS REQUIRED TO MEET THE CARB REQUIREMENTS. TECHTRONIC INDUSTRIES NORTH AMERICA, INC., LIMITED WARRANTY FEDERAL AND CALIFORNIA EMISSION CONTROL SYSTEMS NON-ROAD AND SMALL OFF-ROAD ENGINES The U.S. Environmental Protection Agency (EPA), the California Air Resources Board (CARB), and Techtronic Industries North America, Inc.
WARRANTY EMISSIONS MAINTENANCE SCHEDULE AND WARRANTED PARTS LIST Emissions Parts Inspect Before Each Use Clean Every 5 Hours Replace Every 25 Hours or Yearly Clean Every 25 Hours or Yearly AIR FILTER ASSY includes: Filter ..................................................................... X .....................................X SPARK SCREEN ...................................................................................................................................
OPERATOR’S MANUAL 18 in. 40cc CHAIN SAW RY10532 WARNING: The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. CALIFORNIA PROPOSITION 65 • SERVICE Now that you have purchased your tool, should a need ever exist for repair parts or service, simply contact your nearest Authorized Service Center. Be sure to provide all pertinent facts when you call or visit.
