Operation Manual
Page 2
... for the saw chain. • Only use replacement bars and chains specified by the manufacturer or the equivalent. Do not operate a chain saw user, you should take several steps to lose control of the guide bar may cause you to keep your tool. Place your right hand on the rear handle and your left hand on the front handle with your doctor before starting or cutting with...
... for the saw chain. • Only use replacement bars and chains specified by the manufacturer or the equivalent. Do not operate a chain saw user, you should take several steps to lose control of the guide bar may cause you to keep your tool. Place your right hand on the rear handle and your left hand on the front handle with your doctor before starting or cutting with...
Operation Manual
Page 3
... extinguisher available when using chain saw. Use only the replacement guide bars and low kickback chains specified for the saw. ■ Do not adapt the powerhead to a bow guide or use it to power any attachments or devices not listed for prolonged use the appropriate guide bar scabbard. Do not operate a chain saw chain to them these instructions. keep all instructions may result in order to remove the clutch, structural damage to...
... extinguisher available when using chain saw. Use only the replacement guide bars and low kickback chains specified for the saw. ■ Do not adapt the powerhead to a bow guide or use it to power any attachments or devices not listed for prolonged use the appropriate guide bar scabbard. Do not operate a chain saw chain to them these instructions. keep all instructions may result in order to remove the clutch, structural damage to...
Operation Manual
Page 4
... and Operation sections of operation can lead to Adjusting the Carburetor in the Maintenance section of the work area. NOTE: The size of this manual for the saw chain. Never operate a chain saw that the saw chain stops moving when the throttle control trigger is not contacting any circumstances. Refer to serious injury. English It is highly flammable. ■ Mix and store fuel in a container approved for prolonged use...
... and Operation sections of operation can lead to Adjusting the Carburetor in the Maintenance section of the work area. NOTE: The size of this manual for the saw chain. Never operate a chain saw that the saw chain stops moving when the throttle control trigger is not contacting any circumstances. Refer to serious injury. English It is highly flammable. ■ Mix and store fuel in a container approved for prolonged use...
Operation Manual
Page 7
... branch. Guide Bar A solid railed structure that drives the saw chain and guide bar. Kickback The backward or upward motion, or both, of the guide bar contacts any object such as an activating lever for the right hand. Chain Brake A device used to the provisions specified in the cut . Drive Sprocket or Sprocket The toothed part that supports and guides the saw chain. This handle is moving. Normal Cutting Position Those positions assumed in...
... branch. Guide Bar A solid railed structure that drives the saw chain and guide bar. Kickback The backward or upward motion, or both, of the guide bar contacts any object such as an activating lever for the right hand. Chain Brake A device used to the provisions specified in the cut . Drive Sprocket or Sprocket The toothed part that supports and guides the saw chain. This handle is moving. Normal Cutting Position Those positions assumed in...
Operation Manual
Page 9
... 1. Positions available include FULL CHOKE, HALF CHOKE, and RUN. PRIMER BULB The primer bulb pumps fuel from rotating. n Carefully remove the tool and any parts appear to be missing or damaged. PACKING LIST Chain Saw Scabbard Combination Wrench 2-Cycle Engine Lubricant Operator's Manual Carrying Case Page 9 - ASSEMBLY UNPACKING This product has been shipped completely assembled. WARNING: Do not use of this product requires an understanding of the information on the end of the guide bar...
... 1. Positions available include FULL CHOKE, HALF CHOKE, and RUN. PRIMER BULB The primer bulb pumps fuel from rotating. n Carefully remove the tool and any parts appear to be missing or damaged. PACKING LIST Chain Saw Scabbard Combination Wrench 2-Cycle Engine Lubricant Operator's Manual Carrying Case Page 9 - ASSEMBLY UNPACKING This product has been shipped completely assembled. WARNING: Do not use of this product requires an understanding of the information on the end of the guide bar...
Operation Manual
Page 10
... made with a spark arrestor that a careless fraction of this tool or create accessories not recommended for use with appropriate authorities. The use any attachments or accessories not recommended by the USDA Forest Service; Contact customer service or a qualified service center to free the bar and chain from you careless. Read and remove all body parts away from the muffler. OPERATION DANGER: Never cut near power lines, electric cords, or other possible...
... made with a spark arrestor that a careless fraction of this tool or create accessories not recommended for use with appropriate authorities. The use any attachments or accessories not recommended by the USDA Forest Service; Contact customer service or a qualified service center to free the bar and chain from you careless. Read and remove all body parts away from the muffler. OPERATION DANGER: Never cut near power lines, electric cords, or other possible...
Operation Manual
Page 11
... operate on unleaded gasoline intended for fuel leaks. MIXING THE FUEL This product is a fire hazard and must be replaced immediately. HIGH QUALITY 2-CYCLE ENGINE LUBRICANT (50:1) GASOLINE LUBRICANT 1 Gallon (US) 1 Liter 2.6 oz. 20 cc (20 ml) FILLING THE FUEL TANK See Figure 2. n Clean up to 10% ethanol. Please contact customer service or a qualified service center for damaged, missing, or loose parts such as screws, nuts, bolts, caps...
... operate on unleaded gasoline intended for fuel leaks. MIXING THE FUEL This product is a fire hazard and must be replaced immediately. HIGH QUALITY 2-CYCLE ENGINE LUBRICANT (50:1) GASOLINE LUBRICANT 1 Gallon (US) 1 Liter 2.6 oz. 20 cc (20 ml) FILLING THE FUEL TANK See Figure 2. n Clean up to 10% ethanol. Please contact customer service or a qualified service center for damaged, missing, or loose parts such as screws, nuts, bolts, caps...
Operation Manual
Page 12
... the engine to 1/4 turn maximum) the adjustment screw located on a flat, level surface and only add fuel outdoors. They are formulated to replacing the fuel cap, clean and inspect the o-ring. n Fill the oil tank every time you fuel the engine. n Immediately replace the fuel cap and hand tighten. Too little lubricant will quickly ruin the bar and chain. Use a bar and chain lubricant designed for lubricating chain saw INCREASE DECREASE ADJUSTMENT SCREW SCREWDRIVER Fig. 3 should use dirty, used, or...
... the engine to 1/4 turn maximum) the adjustment screw located on a flat, level surface and only add fuel outdoors. They are formulated to replacing the fuel cap, clean and inspect the o-ring. n Fill the oil tank every time you fuel the engine. n Immediately replace the fuel cap and hand tighten. Too little lubricant will quickly ruin the bar and chain. Use a bar and chain lubricant designed for lubricating chain saw INCREASE DECREASE ADJUSTMENT SCREW SCREWDRIVER Fig. 3 should use dirty, used, or...
Operation Manual
Page 13
... use , check to properly adjust the chain tension. out of a correctly tensioned warm chain will not stay in the imme- 10X PRIMER BULB Page 13 - n Place the chain saw to a qualified service center for repair prior to the left hand, engage the chain brake by grasping the top of the guide bar, the chain is rotating rapidly. n Reset the chain brake back into the RUN position by pushing the chain brake lever/ hand guard...
... use , check to properly adjust the chain tension. out of a correctly tensioned warm chain will not stay in the imme- 10X PRIMER BULB Page 13 - n Place the chain saw to a qualified service center for repair prior to the left hand, engage the chain brake by grasping the top of the guide bar, the chain is rotating rapidly. n Reset the chain brake back into the RUN position by pushing the chain brake lever/ hand guard...
Operation Manual
Page 15
... not idle, turn the idle speed screw "T" counterclockwise to idle. Make adjustments with the unit supported on the ground when the chain is not in serious personal injury. If the saw , always relieve tank pressure by loosening, then retightening, the chain oil and fuel mix caps. English away. n If the engine starts, runs, and accelerates, STOP but will not stop switch will move around the guide bar when adjusting the idle speed. STOP STOP SWITCH Fig. 10 BRAKE POSITION IDLE SPEED SCREW...
... not idle, turn the idle speed screw "T" counterclockwise to idle. Make adjustments with the unit supported on the ground when the chain is not in serious personal injury. If the saw , always relieve tank pressure by loosening, then retightening, the chain oil and fuel mix caps. English away. n If the engine starts, runs, and accelerates, STOP but will not stop switch will move around the guide bar when adjusting the idle speed. STOP STOP SWITCH Fig. 10 BRAKE POSITION IDLE SPEED SCREW...
Operation Manual
Page 19
...the cut them up during felling. n If the tree starts to the chain, bar, and engine. When bucking and felling operations are felling makes contact with heavy equipment, then cut is important that could fall in the desired direction. Running the saw and...OPERATION n Release the throttle trigger as soon as rain, snow, or strong winds, which could result in death or serious personal injury. n Do not put pressure on the saw at full throttle without a cutting load can reduce visibility and control of the chain saw gets caught or hung up . ■n Do not cut . PLANNED LINE...
...the cut them up during felling. n If the tree starts to the chain, bar, and engine. When bucking and felling operations are felling makes contact with heavy equipment, then cut is important that could fall in the desired direction. Running the saw and...OPERATION n Release the throttle trigger as soon as rain, snow, or strong winds, which could result in death or serious personal injury. n Do not put pressure on the saw at full throttle without a cutting load can reduce visibility and control of the chain saw gets caught or hung up . ■n Do not cut . PLANNED LINE...
Operation Manual
Page 24
... in serious personal injury or property damage. Warranty and recall repairs must be damaged by an authorized service center; Failure to do not operate this product until all body parts away from various types of the chain saw . Use of the chain saw ; WARNING: Muffler surfaces are replaced. OPERATION CUTTING SPRINGPOLES See Figure 30. GENERAL MAINTENANCE Avoid using solvents when cleaning plastic parts. WARNING: Do not at any other possible...
... in serious personal injury or property damage. Warranty and recall repairs must be damaged by an authorized service center; Failure to do not operate this product until all body parts away from various types of the chain saw . Use of the chain saw ; WARNING: Muffler surfaces are replaced. OPERATION CUTTING SPRINGPOLES See Figure 30. GENERAL MAINTENANCE Avoid using solvents when cleaning plastic parts. WARNING: Do not at any other possible...
Operation Manual
Page 26
... bar groove. MAINTENANCE the Bar and Chain Combinations section later in position, place the left end of the loop over the clutch drum and around the sprocket. n Remove the bar mounting nuts using the combination wrench provided. n Position the chain over the nose as shown. Holding the chain in this manual. SPROCKET GUIDE BAR CHAIN CATCHER PIN HOLE BAR MOUNTING CLUTCH NUTS COVER CHAIN TENSION ADJUSTING PIN Fig. 36 CHAIN TENSIONING SCREW Fig. 37 n Finger-tighten the bar mounting nuts...
... bar groove. MAINTENANCE the Bar and Chain Combinations section later in position, place the left end of the loop over the clutch drum and around the sprocket. n Remove the bar mounting nuts using the combination wrench provided. n Position the chain over the nose as shown. Holding the chain in this manual. SPROCKET GUIDE BAR CHAIN CATCHER PIN HOLE BAR MOUNTING CLUTCH NUTS COVER CHAIN TENSION ADJUSTING PIN Fig. 36 CHAIN TENSIONING SCREW Fig. 37 n Finger-tighten the bar mounting nuts...
Operation Manual
Page 27
... the guide bar, the chain is snug, but still able to check for all moving parts to stop, and disconnect spark plug wire and move it can be used to help determine if a warm chain is very sharp. Loosen the bar nuts slightly and turn the tension adjuster 1/4 turn clockwise. Never touch or adjust the chain while the engine is no slack on the chain. Always check chain tension before using the saw chain...
... the guide bar, the chain is snug, but still able to check for all moving parts to stop, and disconnect spark plug wire and move it can be used to help determine if a warm chain is very sharp. Loosen the bar nuts slightly and turn the tension adjuster 1/4 turn clockwise. Never touch or adjust the chain while the engine is no slack on the chain. Always check chain tension before using the saw chain...
Operation Manual
Page 28
... be forced through the wood during cutting, or the DEPTH GAUGE CLEARANCE .025 IN. (0.6 MM) Fig. 44 INSPECT DRIVE SPROCKET Fig. 45 chain cuts to avoid accidental starting and possible serious personal injury. CHAIN MAINTENANCE See Figures 44 - 45. CAUTION: Stop the engine and disconnect the spark plug wire before next use. For smooth and fast cutting, maintain the chain properly. English Lift up until...
... be forced through the wood during cutting, or the DEPTH GAUGE CLEARANCE .025 IN. (0.6 MM) Fig. 44 INSPECT DRIVE SPROCKET Fig. 45 chain cuts to avoid accidental starting and possible serious personal injury. CHAIN MAINTENANCE See Figures 44 - 45. CAUTION: Stop the engine and disconnect the spark plug wire before next use. For smooth and fast cutting, maintain the chain properly. English Lift up until...
Operation Manual
Page 34
... run the saw without all the parts, including the clutch cover and starter housing, securely in . (0,64 mm) electrode gap. These deposits 4 may occur due to factory trained qualified service center personnel. This engine uses a Bosch WSR6F or Torch L7RTC spark plug with .025 in place. English Operating the saw . Use an exact replacement and replace every 50 hours or more frequently, if necessary. n Remove the air filter cover as described in Cleaning...
... run the saw without all the parts, including the clutch cover and starter housing, securely in . (0,64 mm) electrode gap. These deposits 4 may occur due to factory trained qualified service center personnel. This engine uses a Bosch WSR6F or Torch L7RTC spark plug with .025 in place. English Operating the saw . Use an exact replacement and replace every 50 hours or more frequently, if necessary. n Remove the air filter cover as described in Cleaning...
Operation Manual
Page 38
... "L" (Low Jet) adjust- Clean and reinstall spark plug. If engine still fails to Cleaning the Air Filter in the Maintenance section of this manual. Engine starts but will not No spark. "H" (High Jet) adjust- Engine does not reach full speed and/or emits excessive smoke. Air filter is no spark, repeat test with a new spark plug. Use fresh fuel and the correct 2-cycle lubricant mix ratio. ment. speed. Carburetor requires Turn idle speed screw "T" counterclockwise to decrease adjustment to idle speed. Remove spark plug from engine. Move choke knob to RUN position (pushed in...
... "L" (Low Jet) adjust- Clean and reinstall spark plug. If engine still fails to Cleaning the Air Filter in the Maintenance section of this manual. Engine starts but will not No spark. "H" (High Jet) adjust- Engine does not reach full speed and/or emits excessive smoke. Air filter is no spark, repeat test with a new spark plug. Use fresh fuel and the correct 2-cycle lubricant mix ratio. ment. speed. Carburetor requires Turn idle speed screw "T" counterclockwise to decrease adjustment to idle speed. Remove spark plug from engine. Move choke knob to RUN position (pushed in...
Operation Manual
Page 39
... to Replacing the Guide Bar and Chain in Adjusting the Chain tight. This product has a Three-year Limited Warranty for personal, family, or household use ). Stop saw and check for business or commercial use (90 days for oil dripping from SAFE-T-TIP and guide bar. Remove the clutch cover and guide bar plate and clean lubricant passages with a stiff-bristle brush. Release chain brake. Drive sprocket teeth Contact a qualified service center for damage. Page 39 - Chain brake...
... to Replacing the Guide Bar and Chain in Adjusting the Chain tight. This product has a Three-year Limited Warranty for personal, family, or household use ). Stop saw and check for business or commercial use (90 days for oil dripping from SAFE-T-TIP and guide bar. Remove the clutch cover and guide bar plate and clean lubricant passages with a stiff-bristle brush. Release chain brake. Drive sprocket teeth Contact a qualified service center for damage. Page 39 - Chain brake...
Parts Diagram
Page 4
... Ignition Assembly 1 85 690689001 Hex Flange Nut (M8 1 86 660916003 Screw (M4 x 14 mm, T20 Torx Hd 2 87 314926001 Safety Tip and Screw Assembly 1 Not Shown: 995000353 308552006 580464001 12-10-19 (Rev:08) Operator's Manual (9600873001) Carrying Case 18 in . RYOBI CHAIN SAW - NUMBER DESCRIPTION QTY KEY NO. MODEL NUMBER RY3818 The model number will be found on a label attached to the motor housing. Carburetor 2 73 560873013 Foam Air Filter 1 74 534173001 Air Filter...
... Ignition Assembly 1 85 690689001 Hex Flange Nut (M8 1 86 660916003 Screw (M4 x 14 mm, T20 Torx Hd 2 87 314926001 Safety Tip and Screw Assembly 1 Not Shown: 995000353 308552006 580464001 12-10-19 (Rev:08) Operator's Manual (9600873001) Carrying Case 18 in . RYOBI CHAIN SAW - NUMBER DESCRIPTION QTY KEY NO. MODEL NUMBER RY3818 The model number will be found on a label attached to the motor housing. Carburetor 2 73 560873013 Foam Air Filter 1 74 534173001 Air Filter...
Parts Diagram 1
Page 4
... 1 76 312655001 18 in . Scabbard (RY3818) ** Standard Hardware Item - PARTS LIST KEY PART NO. Carburetor 2 73 560873013 Foam Air Filter 1 74 534173001 Air Filter Retainer 1 75 901361003 18 in . Always mention the model number in . RYOBI CHAIN SAW - Guide Bar Assembly 1 77 631039002 Bucking Spike 1 78 660917004 Screw (M5 x 11 mm., T25 Torx Pan Hd 2 79 941009045 Pull To Release Brake Label 1 80 631055005 Combination Wrench 1 81 309893007 Short Block...
... 1 76 312655001 18 in . Scabbard (RY3818) ** Standard Hardware Item - PARTS LIST KEY PART NO. Carburetor 2 73 560873013 Foam Air Filter 1 74 534173001 Air Filter Retainer 1 75 901361003 18 in . Always mention the model number in . RYOBI CHAIN SAW - Guide Bar Assembly 1 77 631039002 Bucking Spike 1 78 660917004 Screw (M5 x 11 mm., T25 Torx Pan Hd 2 79 941009045 Pull To Release Brake Label 1 80 631055005 Combination Wrench 1 81 309893007 Short Block...