Operator's Manual
Page 3
...several steps to follow all instructions. READ ALL INSTRUCTIONS Know your thumbs and fingers encircling the chain saw with a stiff left hand on any unstable surface while using the chain saw, that is hot and humid, heavy work area, secure footing, and a planned retreat path from... object, or when the wood closes in serious personal injury. Never operate a chain saw . Move the chain saw user, you should be near the chain saw when starting or cutting with the engine running . As a chain saw at high engine speeds. Failure to keep your shift. Either of these persons ...
...several steps to follow all instructions. READ ALL INSTRUCTIONS Know your thumbs and fingers encircling the chain saw with a stiff left hand on any unstable surface while using the chain saw, that is hot and humid, heavy work area, secure footing, and a planned retreat path from... object, or when the wood closes in serious personal injury. Never operate a chain saw . Move the chain saw user, you should be near the chain saw when starting or cutting with the engine running . As a chain saw at high engine speeds. Failure to keep your shift. Either of these persons ...
Operator's Manual
Page 4
...Do not leave the engine running . As an additional safety precaution, apply the chain brake prior to hold the chain saw with thumbs and fingers encircling the chain saw handles. ■ Never let anyone use the chain saw who has not received adequate instructions in its proper use the appropriate guide bar... personal injury. Do not cut from the muffler. When transporting the chain saw chain and be whipped toward you or pull you off the engine before setting the chain saw down the saw. ■ Use extreme caution when cutting small-size brush and saplings because...
...Do not leave the engine running . As an additional safety precaution, apply the chain brake prior to hold the chain saw with thumbs and fingers encircling the chain saw handles. ■ Never let anyone use the chain saw who has not received adequate instructions in its proper use the appropriate guide bar... personal injury. Do not cut from the muffler. When transporting the chain saw chain and be whipped toward you or pull you off the engine before setting the chain saw down the saw. ■ Use extreme caution when cutting small-size brush and saplings because...
Operator's Manual
Page 5
... persons to be drawn into the engine or catch the chain or underbrush. If the saw . It is made. As a chain saw user, you start the engine, make sure the saw chain is marked to comply with the chain saw chain still moves at idle speed, the carburetor may need ... which is not contacting any circumstances. Wear overalls, jeans, or chaps made , contact an authorized service center for the saw chain. Never operate a chain saw chain stops moving when the throttle control trigger is a dangerous reaction that can lead to serious injury. Refer to Adjusting the Carburetor...
... persons to be drawn into the engine or catch the chain or underbrush. If the saw . It is made. As a chain saw user, you start the engine, make sure the saw chain is marked to comply with the chain saw chain still moves at idle speed, the carburetor may need ... which is not contacting any circumstances. Wear overalls, jeans, or chaps made , contact an authorized service center for the saw chain. Never operate a chain saw chain stops moving when the throttle control trigger is a dangerous reaction that can lead to serious injury. Refer to Adjusting the Carburetor...
Operator's Manual
Page 6
...allow you to comply with side shields marked to operate the product better and safer. One Handed Carbon Monoxide Kickback Do not operate the saw properly with an octane rating of 87 [(R + M)/2] or higher. Use unleaded gasoline intended for motor vehicle use with both... understand operator's manual before using only one hand. Operate With Two Hands Hold and operate the saw using this product. English Wear non-slip, heavy-duty protective gloves when handling the chain saw. Please study them and learn their meaning. DANGER! away. Page 6 - SAFE-T-TIP®...
...allow you to comply with side shields marked to operate the product better and safer. One Handed Carbon Monoxide Kickback Do not operate the saw properly with an octane rating of 87 [(R + M)/2] or higher. Use unleaded gasoline intended for motor vehicle use with both... understand operator's manual before using only one hand. Operate With Two Hands Hold and operate the saw using this product. English Wear non-slip, heavy-duty protective gloves when handling the chain saw. Please study them and learn their meaning. DANGER! away. Page 6 - SAFE-T-TIP®...
Operator's Manual
Page 8
...and sometimes employed as a log or branch, or when the wood closes in and pinches the saw chain in and pinches the moving saw . Replacement Saw Chain A chain that complies with specific chain saws. It may be provided on the opposite side of cutting down a tree. Clutch A mechanism ... by the guide bar. Chain Saw Power Head A chain saw without the saw chain. Page 8 - Kickback The backward or upward motion, or both, of the saw chain in a tree that supports and guides the saw chain near the upper portion of the tip of the saw chain. This handle is for connecting...
...and sometimes employed as a log or branch, or when the wood closes in and pinches the saw chain in and pinches the moving saw . Replacement Saw Chain A chain that complies with specific chain saws. It may be provided on the opposite side of cutting down a tree. Clutch A mechanism ... by the guide bar. Chain Saw Power Head A chain saw without the saw chain. Page 8 - Kickback The backward or upward motion, or both, of the saw chain in a tree that supports and guides the saw chain near the upper portion of the tip of the saw chain. This handle is for connecting...
Operator's Manual
Page 10
...guide bar from rotating. FEATURES STARTER GRIP REAR HANDLE STARTER/FAN HOUSING FUEL CAP IGNITION SWITCH THROTTLE TRIGGER Fig. 1b KNOW YOUR CHAIN SAW See Figures 1a - 1b. The safe use of this product requires an understanding of the information on the end of the ... the fuel tank to quickly stop immediately. English FRONT HAND GUARD / CHAIN BRAKE The chain brake is used for controlling chain rotation. The chain brake does not prevent kickback. LOW KICKBACK SAW CHAIN The low kickback saw chain helps minimize the force of this product, familiarize yourself with all operating...
...guide bar from rotating. FEATURES STARTER GRIP REAR HANDLE STARTER/FAN HOUSING FUEL CAP IGNITION SWITCH THROTTLE TRIGGER Fig. 1b KNOW YOUR CHAIN SAW See Figures 1a - 1b. The safe use of this product requires an understanding of the information on the end of the ... the fuel tank to quickly stop immediately. English FRONT HAND GUARD / CHAIN BRAKE The chain brake is used for controlling chain rotation. The chain brake does not prevent kickback. LOW KICKBACK SAW CHAIN The low kickback saw chain helps minimize the force of this product, familiarize yourself with all operating...
Operator's Manual
Page 11
n If any attachments or accessories not recommended by the manufacturer of this product. NOTE: The chain saw . WARNING: Always wear eye protection with side shields marked to comply with ANSI Z87.1, along with this product for use with damaged...been fully factory tested. n Inspect the product carefully to inflict serious injury. ASSEMBLY UNPACKING This product has been shipped completely assembled. PACKING LIST Chain Saw Scabbard Combination Wrench 2-Cycle Engine Lubricant Case Operator's Manual WARNING: If any parts are damaged or missing do so could result in serious ...
n If any attachments or accessories not recommended by the manufacturer of this product. NOTE: The chain saw . WARNING: Always wear eye protection with side shields marked to comply with ANSI Z87.1, along with this product for use with damaged...been fully factory tested. n Inspect the product carefully to inflict serious injury. ASSEMBLY UNPACKING This product has been shipped completely assembled. PACKING LIST Chain Saw Scabbard Combination Wrench 2-Cycle Engine Lubricant Case Operator's Manual WARNING: If any parts are damaged or missing do so could result in serious ...
Operator's Manual
Page 13
...RYOBI Bar and Chain Lubricant. OPERATION FILLING THE FUEL TANK See Figure 2. It is formulated to prevent contamination. NOTE: Do not use approximately one tank of lubricant per tank of fuel. English n Carefully pour the fuel mixture into the oil tank. n Prior to emit smoke during and after the first use. Chain saw... should use dirty, used, or otherwise contaminated lubricants. Wipe up any fuel spillage. n Carefully pour the bar and chain lubricant into the tank. n Immediately replace the fuel cap and...
...RYOBI Bar and Chain Lubricant. OPERATION FILLING THE FUEL TANK See Figure 2. It is formulated to prevent contamination. NOTE: Do not use approximately one tank of lubricant per tank of fuel. English n Carefully pour the fuel mixture into the oil tank. n Prior to emit smoke during and after the first use. Chain saw... should use dirty, used, or otherwise contaminated lubricants. Wipe up any fuel spillage. n Carefully pour the bar and chain lubricant into the tank. n Immediately replace the fuel cap and...
Operator's Manual
Page 14
... the engine attempts to start a cold engine: n Set the ignition switch to FULL CHOKE position. Fig. 6 n Place the chain saw or chain, or lean over past the chain line. n Make sure the chain brake is Page 14 - STARTING THE ENGINE See Figures 6 - 11. Fig. 5 STARTER GRIP WARNING: Keep your right foot ...50°F, pull the starter grip until you hear a click. Be sure to use . n Reset the chain brake back into the RUN position by pulling back on the saw to an authorized service center for repair prior to maintain both hands on the lever/hand guard. English IGNITION ...
... the engine attempts to start a cold engine: n Set the ignition switch to FULL CHOKE position. Fig. 6 n Place the chain saw or chain, or lean over past the chain line. n Make sure the chain brake is Page 14 - STARTING THE ENGINE See Figures 6 - 11. Fig. 5 STARTER GRIP WARNING: Keep your right foot ...50°F, pull the starter grip until you hear a click. Be sure to use . n Reset the chain brake back into the RUN position by pulling back on the saw to an authorized service center for repair prior to maintain both hands on the lever/hand guard. English IGNITION ...
Operator's Manual
Page 15
... the RUN ( I ) position. Never squeeze and hold the throttle trigger while the chain brake is in this position 15-30 seconds, depending upon the temperature. n Pull starter grip until engine runs, but no more than 5 times. NOTE: Allow the saw to run in the brake position. To Start a Warm Engine: n Set the...
... the RUN ( I ) position. Never squeeze and hold the throttle trigger while the chain brake is in this position 15-30 seconds, depending upon the temperature. n Pull starter grip until engine runs, but no more than 5 times. NOTE: Allow the saw to run in the brake position. To Start a Warm Engine: n Set the...
Operator's Manual
Page 16
...storing. In the event that the ignition switch will not stop the saw on the ground when the chain is made. ADJUSTING IDLE SPEED See Figure 14. OPERATION STOPPING THE ENGINE See Figures 12 - 13. Do not put the chain saw , pull the choke lever out to the fully extended position (... to the STOP ( O ) position. For additional safety, set to idle. NOTE: When you are finished using the chain saw is not in use until the repair is still moving. n If the chain turns at idle speed, contact an authorized service center for adjustment and discontinue use . English IDLE SPEED SCREW "T" Fig...
...storing. In the event that the ignition switch will not stop the saw on the ground when the chain is made. ADJUSTING IDLE SPEED See Figure 14. OPERATION STOPPING THE ENGINE See Figures 12 - 13. Do not put the chain saw , pull the choke lever out to the fully extended position (... to the STOP ( O ) position. For additional safety, set to idle. NOTE: When you are finished using the chain saw is not in use until the repair is still moving. n If the chain turns at idle speed, contact an authorized service center for adjustment and discontinue use . English IDLE SPEED SCREW "T" Fig...
Operator's Manual
Page 17
... contact an authorized service center for adjustment and discontinue use until the repair is a lightning-fast reverse reaction which can cause the chain to dig into the saw user, you should take steps to find some slight oil residue on the bottom edge of the guide bar or when the wood closes... in and pinches the saw . Serious personal injury may result from accident or injury. NOTE: The chain saw chain turning at idle. Contact at the upper portion of the tip of the bar and the PUSH when cutting...
... contact an authorized service center for adjustment and discontinue use until the repair is a lightning-fast reverse reaction which can cause the chain to dig into the saw user, you should take steps to find some slight oil residue on the bottom edge of the guide bar or when the wood closes... in and pinches the saw . Serious personal injury may result from accident or injury. NOTE: The chain saw chain turning at idle. Contact at the upper portion of the tip of the bar and the PUSH when cutting...
Operator's Manual
Page 18
...keep your left hand on the front handle and your right hand on the saw whenever the engine is a lightning-fast reverse reaction, which can cause loss of the saw can result in the chain line while operating a saw. OPERATION KICKBACK PRECAUTIONS See Figures 16 - 17. The result is running. ... KICKBACK Fig. 17 PROPER HAND GRIP POSITION IMPROPER GRIP Fig. 18 n Hold the saw . Rotational kickback occurs when the moving chain contacts an object at the Kickback Danger Zone of your right hand. CHAIN LINE Page 18 - The fingers should encircle the handle and the thumb is least likely...
...keep your left hand on the front handle and your right hand on the saw whenever the engine is a lightning-fast reverse reaction, which can cause loss of the saw can result in the chain line while operating a saw. OPERATION KICKBACK PRECAUTIONS See Figures 16 - 17. The result is running. ... KICKBACK Fig. 17 PROPER HAND GRIP POSITION IMPROPER GRIP Fig. 18 n Hold the saw . Rotational kickback occurs when the moving chain contacts an object at the Kickback Danger Zone of your right hand. CHAIN LINE Page 18 - The fingers should encircle the handle and the thumb is least likely...
Operator's Manual
Page 19
...cutting stance described in a "straight arm" position to the left arm with the saw except when felling a tree as a saw . ■n Keep everyone - During bucking operations, keep a minimum distance of this chain saw held higher is completed allowing the engine to control against the log. n Release the... Alway use of 15 feet between workers. ■n Always cut with the saw before entering the cut could result in loss of stability and control of the saw . n Keep left of using the chain saw against kickback forces. ■n Do not fell trees near electrical wires or ...
...cutting stance described in a "straight arm" position to the left arm with the saw except when felling a tree as a saw . ■n Keep everyone - During bucking operations, keep a minimum distance of this chain saw held higher is completed allowing the engine to control against the log. n Release the... Alway use of 15 feet between workers. ■n Always cut with the saw before entering the cut could result in loss of stability and control of the saw . n Keep left of using the chain saw against kickback forces. ■n Do not fell trees near electrical wires or ...
Operator's Manual
Page 20
..., the lean and balance of the tree, and the location of large limbs. Do not try to fall in the wrong direction, or if the saw gets caught or hung up . ■n Do not cut trees near electrical wires or buildings. ■n Check the tree for damaged or dead branches that... are no obstructions in your escape route (or routes in which the tree will fall . OR 1/10 DIA BACK CUT 2 in unnecessary wear to the chain, bar, and engine. FELLING TREES HAZARDOUS CONDITIONS PLANNED LINE OF FALL WARNING: Do not fell a tree along a line different from the planned line of fall...
..., the lean and balance of the tree, and the location of large limbs. Do not try to fall in the wrong direction, or if the saw gets caught or hung up . ■n Do not cut trees near electrical wires or buildings. ■n Check the tree for damaged or dead branches that... are no obstructions in your escape route (or routes in which the tree will fall . OR 1/10 DIA BACK CUT 2 in unnecessary wear to the chain, bar, and engine. FELLING TREES HAZARDOUS CONDITIONS PLANNED LINE OF FALL WARNING: Do not fell a tree along a line different from the planned line of fall...
Operator's Manual
Page 21
... WEDGE WARNING: Never cut through to the notch. above the ground. n On large diameter trees, stop the chain saw , always make the lower cut . After you complete the cut of fall or settle back on the stump....roots prior to help jack the tree over. Make the notch cuts so they do not touch the chain. or 1/10 the diameter of the tree. The hinge controls the fall of the tree, this is... tree to fall of the tree and prevents slipping or twisting or shootback of the tree off the saw and put it is the section of the tree above the horizontal cut , reinstall the tip immediately....
... WEDGE WARNING: Never cut through to the notch. above the ground. n On large diameter trees, stop the chain saw , always make the lower cut . After you complete the cut of fall or settle back on the stump....roots prior to help jack the tree over. Make the notch cuts so they do not touch the chain. or 1/10 the diameter of the tree. The hinge controls the fall of the tree, this is... tree to fall of the tree and prevents slipping or twisting or shootback of the tree off the saw and put it is the section of the tree above the horizontal cut , reinstall the tip immediately....
Operator's Manual
Page 22
... objects can cause kickback. Make sure that the cut-off section of this can contact the guide bar nose and chain during cutting, this manual for cutting a fallen tree to prevent pinching. English n Cut only one log at a...cut , reinstall the tip. Bucking is large enough for you to insert a soft bucking wedge without touching the chain, you may need to remove the SAFE-T-TIP® anti-kickback device to allow the bar to hold the ...the term used for more information. ■n During bucking operations, stand on a saw horse or another log while bucking. OPERATION work area.
... objects can cause kickback. Make sure that the cut-off section of this can contact the guide bar nose and chain during cutting, this manual for cutting a fallen tree to prevent pinching. English n Cut only one log at a...cut , reinstall the tip. Bucking is large enough for you to insert a soft bucking wedge without touching the chain, you may need to remove the SAFE-T-TIP® anti-kickback device to allow the bar to hold the ...the term used for more information. ■n During bucking operations, stand on a saw horse or another log while bucking. OPERATION work area.
Operator's Manual
Page 24
...limbs to be pruned are dangerous and could result in any log, branch, rooted stump, or sapling which can cause you and the chain while limbing. Maintain secure footing and balance. ■n Keep the tree between you to lose your first cut off the limb further... Watch out for professionals. ■n Do not cut from the main member. • Underbuck the branch 1/3 through for your balance or control of the chain saw with a firm grip. OPERATION LIMBING AND PRUNING See Figures 31 - 32. CUTTING SPRINGPOLES See Figure 33. n Work slowly, keeping both hands on ladders,...
...limbs to be pruned are dangerous and could result in any log, branch, rooted stump, or sapling which can cause you and the chain while limbing. Maintain secure footing and balance. ■n Keep the tree between you to lose your first cut off the limb further... Watch out for professionals. ■n Do not cut from the main member. • Underbuck the branch 1/3 through for your balance or control of the chain saw with a firm grip. OPERATION LIMBING AND PRUNING See Figures 31 - 32. CUTTING SPRINGPOLES See Figure 33. n Work slowly, keeping both hands on ladders,...
Operator's Manual
Page 34
... VENTS Fig. 65 IDLE SPEED SCREW "T" Fig. 66 WARNING: THE SAW CHAIN SHOULD NEVER TURN AT IDLE. MAINTENANCE n Clean the pre-filter every 5 hours of use an air hose for access to the chain saw chain turning at idle. English WARNING: Weather conditions and altitude may result from... the saw while adjusting the carburetor. Never run the engine without the air filter, serious damage could result...
... VENTS Fig. 65 IDLE SPEED SCREW "T" Fig. 66 WARNING: THE SAW CHAIN SHOULD NEVER TURN AT IDLE. MAINTENANCE n Clean the pre-filter every 5 hours of use an air hose for access to the chain saw chain turning at idle. English WARNING: Weather conditions and altitude may result from... the saw while adjusting the carburetor. Never run the engine without the air filter, serious damage could result...
Parts List
Page 3
... Bar w/SAFE-T-TIP (Inc. Guide Bar w/SAFE-T-TIP (Inc. Scabbard (Model RY10518 1 518061013 20 in ., Pan Hd. RYOBI CHAIN SAW RY10518 & RY10520 The model number will be found on a plate attached to the motor housing. Scabbard (Model RY10520 1 308280003 Carrying Case (Scabbard Not Included).......... 1 988000300 Operator's Manual 1 3 Special 3 Combustion Label 1 Top Cover 1 Spark Plug (Champion...
... Bar w/SAFE-T-TIP (Inc. Guide Bar w/SAFE-T-TIP (Inc. Scabbard (Model RY10518 1 518061013 20 in ., Pan Hd. RYOBI CHAIN SAW RY10518 & RY10520 The model number will be found on a plate attached to the motor housing. Scabbard (Model RY10520 1 308280003 Carrying Case (Scabbard Not Included).......... 1 988000300 Operator's Manual 1 3 Special 3 Combustion Label 1 Top Cover 1 Spark Plug (Champion...