Product Instruction Manual
Page 3
... the operating and maintenance instructions in Muffler 19 Checking the Spark Plug 19 Lubricating the Gearbox 20 Rewind Starter 21 Storing the Machine 21 Sharpening Instructions 22 Inspections and Maintenance by Dealer 22 Maintenance and Care 23 Main Parts 25 Specifications 27 Special Accessories 28 Maintenance and Repairs 28 STIHL Incorporated Federal Emission Control Warranty Statement 28 STIHL Incorporated California Exhaust and Evaporative Emissions Control Warranty Statement 30 Trademarks 32 { HS 81 R, HS 81 RC, HS 81 T, HS 81...
... the operating and maintenance instructions in Muffler 19 Checking the Spark Plug 19 Lubricating the Gearbox 20 Rewind Starter 21 Storing the Machine 21 Sharpening Instructions 22 Inspections and Maintenance by Dealer 22 Maintenance and Care 23 Main Parts 25 Specifications 27 Special Accessories 28 Maintenance and Repairs 28 STIHL Incorporated Federal Emission Control Warranty Statement 28 STIHL Incorporated California Exhaust and Evaporative Emissions Control Warranty Statement 30 Trademarks 32 { HS 81 R, HS 81 RC, HS 81 T, HS 81...
Product Instruction Manual
Page 4
... your STIHL dealer for gear lubricant Starting lock Rotating rear handle Symbols in Text Many operating and safety instructions are supported by illustrations. Depending on the model concerned, the following pictograms may be on the machine are explained in this manual may contain item numbers that require your machine. Example: N Loosen the screw (1). N Lever (2) ... Therefore, some changes, modifications and improvements may be covered in this manual...
... your STIHL dealer for gear lubricant Starting lock Rotating rear handle Symbols in Text Many operating and safety instructions are supported by illustrations. Depending on the model concerned, the following pictograms may be on the machine are explained in this manual may contain item numbers that require your machine. Example: N Loosen the screw (1). N Lever (2) ... Therefore, some changes, modifications and improvements may be covered in this manual...
Product Instruction Manual
Page 7
... horizontal position. Do not smoke or bring any pressure build-up inside the fuel tank depending on "Fuel" of injury from blade contact, never carry or transport your power tool with STIHL power tools, their use may escape from escaping gas vapor and fumes, remove the fuel filler cap on your machine. English Warning! THE USE OF THE POWER TOOL Transporting the Power Tool Warning! Use extreme caution when handling gasoline or fuel mix. HS 81 R, HS 81 RC, HS 81 T, HS 81...
... horizontal position. Do not smoke or bring any pressure build-up inside the fuel tank depending on "Fuel" of injury from blade contact, never carry or transport your power tool with STIHL power tools, their use may escape from escaping gas vapor and fumes, remove the fuel filler cap on your machine. English Warning! THE USE OF THE POWER TOOL Transporting the Power Tool Warning! Use extreme caution when handling gasoline or fuel mix. HS 81 R, HS 81 RC, HS 81 T, HS 81...
Product Instruction Manual
Page 8
... your authorized STIHL dealer for additional information. 6 HS 81 R, HS 81 RC, HS 81 T, HS 81 TC If the grip does not lie completely flush with the raised positioning marks on the fuel tank opening when the positioning marks line up . Check for tightness. Toolless cap with the top of the cap and on the grip of the cap. Using the grip, press the cap down firmly while turning it clockwise...
... your authorized STIHL dealer for additional information. 6 HS 81 R, HS 81 RC, HS 81 T, HS 81 TC If the grip does not lie completely flush with the raised positioning marks on the fuel tank opening when the positioning marks line up . Check for tightness. Toolless cap with the top of the cap and on the grip of the cap. Using the grip, press the cap down firmly while turning it clockwise...
Product Instruction Manual
Page 9
... control or contact with incorrect idle adjustment. Maintain good balance and secure footing. Important Adjustments Warning! HS 81 R, HS 81 RC, HS 81 T, HS 81 TC 7 a loose boot may damage the starter mechanism. with the engine stopped! Apply generously. English Once the engine has started, immediately blip the throttle trigger, which should not move freely and always spring back to adjust idle speed, see the appropriate section of control, do not use a power tool that the spark plug...
... control or contact with incorrect idle adjustment. Maintain good balance and secure footing. Important Adjustments Warning! HS 81 R, HS 81 RC, HS 81 T, HS 81 TC 7 a loose boot may damage the starter mechanism. with the engine stopped! Apply generously. English Once the engine has started, immediately blip the throttle trigger, which should not move freely and always spring back to adjust idle speed, see the appropriate section of control, do not use a power tool that the spark plug...
Product Instruction Manual
Page 10
.... 8 HS 81 R, HS 81 RC, HS 81 T, HS 81 TC Watch for hidden obstacles such as the engine is coated with both hands on the handles while you cannot set the correct idle speed, have your STIHL dealer check your body. Be extremely cautious when working . Never hold the unit firmly with a chemical substance (such as unburned hydrocarbons (including benzene) and carbon monoxide, that the cutting blades...
.... 8 HS 81 R, HS 81 RC, HS 81 T, HS 81 TC Watch for hidden obstacles such as the engine is coated with both hands on the handles while you cannot set the correct idle speed, have your STIHL dealer check your body. Be extremely cautious when working . Never hold the unit firmly with a chemical substance (such as unburned hydrocarbons (including benzene) and carbon monoxide, that the cutting blades...
Product Instruction Manual
Page 11
... the engine while the blades are blocked increases the load and will cause the clutch to important components (e.g. move for bystanders, animals and obstructions. Do not touch the wire with respect to have control of an emergency, switch off the cutting tool at regular intervals. When cutting the top of a taller hedge, check the other side of your power tool using the starting throttle lock, as operating...
... the engine while the blades are blocked increases the load and will cause the clutch to important components (e.g. move for bystanders, animals and obstructions. Do not touch the wire with respect to have control of an emergency, switch off the cutting tool at regular intervals. When cutting the top of a taller hedge, check the other side of your power tool using the starting throttle lock, as operating...
Product Instruction Manual
Page 12
... not operate your muffler. Have your muffler serviced and repaired by your power tool if the screen is greater in the appropriate section of fire, never operate your STIHL servicing dealer only. Strictly follow the maintenance and repair instructions in hot or dry weather. Always stop the engine and make sure it must be securely attached.) A loose connection between spark plug terminal and the ignition wire connector in your instruction manual. Have...
... not operate your muffler. Have your muffler serviced and repaired by your power tool if the screen is greater in the appropriate section of fire, never operate your STIHL servicing dealer only. Strictly follow the maintenance and repair instructions in hot or dry weather. Always stop the engine and make sure it must be securely attached.) A loose connection between spark plug terminal and the ignition wire connector in your instruction manual. Have...
Product Instruction Manual
Page 14
... detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as you swing the hedge trimmer horizontally. Fuel with a manually adjustable carburetor and should not be necessary to the engine. This could cause running speed - Hold the cutter bar at a mix ratio of the fuel is tiring. This engine is certified to operate on unleaded gasoline and the STIHL twostroke engine oil at an angle...
... detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as you swing the hedge trimmer horizontally. Fuel with a manually adjustable carburetor and should not be necessary to the engine. This could cause running speed - Hold the cutter bar at a mix ratio of the fuel is tiring. This engine is certified to operate on unleaded gasoline and the STIHL twostroke engine oil at an angle...
Product Instruction Manual
Page 15
... fuel-containers only. At correct idle speed, the cutting tool should be kept tightly closed in both water cooled and air cooled engines (e.g., outboard motors, snowmobiles, chain saws, mopeds, etc.). We recommend STIHL HP Ultra 2-Cycle Engine Oil since it is facing up. Fuel mix ages Only mix sufficient fuel for use in order to allow any pressure buildup in STIHL engines. The idle speed and maximum speed of sparks from your power tool and make proper adjustments and repairs...
... fuel-containers only. At correct idle speed, the cutting tool should be kept tightly closed in both water cooled and air cooled engines (e.g., outboard motors, snowmobiles, chain saws, mopeds, etc.). We recommend STIHL HP Ultra 2-Cycle Engine Oil since it is facing up. Fuel mix ages Only mix sufficient fuel for use in order to allow any pressure buildup in STIHL engines. The idle speed and maximum speed of sparks from your power tool and make proper adjustments and repairs...
Product Instruction Manual
Page 18
... engine can settle down to idle speed. N Fit the filter cover. N Move the stop switch to 0. 16 HS 81 R, HS 81 RC, HS 81 T, HS 81 TC As soon as the engine runs: N Allow engine to run completely dry and then refueled N Press the fuel pump bulb at least five times - the starting At very low outside temperatures - Stopping the engine Other hints on the palm of engine power Felt filter 2 1 N Turn the choke lever to g N Take out the screw (1). N Now start...
... engine can settle down to idle speed. N Fit the filter cover. N Move the stop switch to 0. 16 HS 81 R, HS 81 RC, HS 81 T, HS 81 TC As soon as the engine runs: N Allow engine to run completely dry and then refueled N Press the fuel pump bulb at least five times - the starting At very low outside temperatures - Stopping the engine Other hints on the palm of engine power Felt filter 2 1 N Turn the choke lever to g N Take out the screw (1). N Now start...
Product Instruction Manual
Page 20
... sea level N Turn high speed screw (H) slightly counterclockwise (richer) - N Idle setting is too lean: Rotate the low speed screw (L) about 1/4 turn the low speed screw (L) down onto its seat (clockwise). English Adjusting the Carburetor General information The carburetor comes from the factory with a standard setting. With this carburetor it is usually necessary to change the setting of engine damage due to the low speed screw (L). N Check the spark arresting screen (country-specific) in the muffler and clean or replace...
... sea level N Turn high speed screw (H) slightly counterclockwise (richer) - N Idle setting is too lean: Rotate the low speed screw (L) about 1/4 turn the low speed screw (L) down onto its seat (clockwise). English Adjusting the Carburetor General information The carburetor comes from the factory with a standard setting. With this carburetor it is usually necessary to change the setting of engine damage due to the low speed screw (L). N Check the spark arresting screen (country-specific) in the muffler and clean or replace...
Product Instruction Manual
Page 22
... spark plug boot and ignition wire connector in fuel mix. N Squeeze up to lubricate the blade drive gear. 1 000BA036 TR Warning! Do not completely fill the gearbox with grease. 20 HS 81 R, HS 81 RC, HS 81 T, HS 81 TC operating at part load. After about 25 hours of operation: N Remove the screw plug (1) from the gear housing on the underside of fire and burn injury, use only spark plugs authorized by STIHL. English Rectify problems which have caused fouling of spark plug...
... spark plug boot and ignition wire connector in fuel mix. N Squeeze up to lubricate the blade drive gear. 1 000BA036 TR Warning! Do not completely fill the gearbox with grease. 20 HS 81 R, HS 81 RC, HS 81 T, HS 81 TC operating at part load. After about 25 hours of operation: N Remove the screw plug (1) from the gear housing on the underside of fire and burn injury, use only spark plugs authorized by STIHL. English Rectify problems which have caused fouling of spark plug...
Product Instruction Manual
Page 25
...Air filter (paper) Pickup body in fuel tank Clean Replace Have checked by dealer1) Have replaced by dealer1) Fuel tank Clean Carburetor Check idle adjustment Readjust idle X X Spark plug Readjust electrode gap Replace after every 100 operating hours Visual inspection X Cooling inlets Clean Spark arresting screen2) in muffler Check after every 20 hours of operation Have checked by dealer1) Have cleaned or replaced by servicing dealer1) All accessible screws and nuts (not adjusting screws) Retighten Antivibration elements Visual inspection X Have replaced by dealer1) HS 81...
...Air filter (paper) Pickup body in fuel tank Clean Replace Have checked by dealer1) Have replaced by dealer1) Fuel tank Clean Carburetor Check idle adjustment Readjust idle X X Spark plug Readjust electrode gap Replace after every 100 operating hours Visual inspection X Cooling inlets Clean Spark arresting screen2) in muffler Check after every 20 hours of operation Have checked by dealer1) Have cleaned or replaced by servicing dealer1) All accessible screws and nuts (not adjusting screws) Retighten Antivibration elements Visual inspection X Have replaced by dealer1) HS 81...
Product Instruction Manual
Page 28
.... Throttle Trigger Controls the speed of the pull starter, for the hand, located at front of the hedge trimmer. 3. Blocking Lever Lever for cutting hedges and shrubs. Spark Plug Boot Connects the spark plug with the ignition lead. 9. Stop Switch Switches the engine's ignition off and stops the engine. 13. Fuel Tank For fuel and oil mixture. 15. Choke Lever Eases engine starting by the cutter blade. 20. Cutting Blade Guard Helps to reduce the risk of operator contact by enriching mixture. 18. HS 81 R, HS 81 RC, HS 81 T, HS 81 TC Fuel Pump Provides...
.... Throttle Trigger Controls the speed of the pull starter, for the hand, located at front of the hedge trimmer. 3. Blocking Lever Lever for cutting hedges and shrubs. Spark Plug Boot Connects the spark plug with the ignition lead. 9. Stop Switch Switches the engine's ignition off and stops the engine. 13. Fuel Tank For fuel and oil mixture. 15. Choke Lever Eases engine starting by the cutter blade. 20. Cutting Blade Guard Helps to reduce the risk of operator contact by enriching mixture. 18. HS 81 R, HS 81 RC, HS 81 T, HS 81 TC Fuel Pump Provides...
Product Instruction Manual
Page 30
... regarding special accessories that may be available for the period of time listed below provided there has been no 28 HS 81 R, HS 81 RC, HS 81 T, HS 81 TC Maintenance and Repairs Users of this unit should carry out only the maintenance operations described in some cases, by authorized STIHL service shops. STIHL Incorporated Federal Emission Control Warranty Statement Not for California Your Warranty Rights and Obligations The U.S. In the U.S.
... regarding special accessories that may be available for the period of time listed below provided there has been no 28 HS 81 R, HS 81 RC, HS 81 T, HS 81 TC Maintenance and Repairs Users of this unit should carry out only the maintenance operations described in some cases, by authorized STIHL service shops. STIHL Incorporated Federal Emission Control Warranty Statement Not for California Your Warranty Rights and Obligations The U.S. In the U.S.
Product Instruction Manual
Page 31
... English the effect of "repair or replace as a problem exists. Box 2015, Virginia Beach, VA 23450-2015 www.stihlusa.com Coverage by the initial purchaser and you have any warranty maintenance or repairs on your instruction manual. The following list specifically defines the emission-related warranted parts: HS 81 R, HS 81 RC, HS 81 T, HS 81 TC 29 You are responsible for two years. STIHL Incorporated also warrants to the...
... English the effect of "repair or replace as a problem exists. Box 2015, Virginia Beach, VA 23450-2015 www.stihlusa.com Coverage by the initial purchaser and you have any warranty maintenance or repairs on your instruction manual. The following list specifically defines the emission-related warranted parts: HS 81 R, HS 81 RC, HS 81 T, HS 81 TC 29 You are responsible for two years. STIHL Incorporated also warrants to the...
Product Instruction Manual
Page 32
... STIHL servicing dealer and present the signed warranty card. STIHL Incorporated must be designed, built, and equipped to STIHL Incorporated specifications that uses small off -road engine. Fuel Line - Magneto or Electronic Ignition System (Ignition Module) - Spark Plug - Carburetor - Fuel Line Fittings - Air Filter - Catalytic Converter (if applicable) - Fuel Cap - Clamps - Fasteners Where to any of the following: N repair or replacement required because of misuse, neglect or lack of the recommended 2-stroke fuel-oil mixture (see also instruction "Fuel...
... STIHL servicing dealer and present the signed warranty card. STIHL Incorporated must be designed, built, and equipped to STIHL Incorporated specifications that uses small off -road engine. Fuel Line - Magneto or Electronic Ignition System (Ignition Module) - Spark Plug - Carburetor - Fuel Line Fittings - Air Filter - Catalytic Converter (if applicable) - Fuel Cap - Clamps - Fasteners Where to any of the following: N repair or replacement required because of misuse, neglect or lack of the recommended 2-stroke fuel-oil mixture (see also instruction "Fuel...
Product Instruction Manual
Page 33
... the period of sale, to the first scheduled replacement point for replacement as required maintenance in the written instructions required in the Emission Warranty Parts List (see above . HS 81 R, HS 81 RC, HS 81 T, HS 81 TC English The warranty on your engine is purchased by STIHL Incorporated free of warranted parts caused by the manufacturer according to the owner. Any warranted part that is scheduled for 31 As the small...
... the period of sale, to the first scheduled replacement point for replacement as required maintenance in the written instructions required in the Emission Warranty Parts List (see above . HS 81 R, HS 81 RC, HS 81 T, HS 81 TC English The warranty on your engine is purchased by STIHL Incorporated free of warranted parts caused by the manufacturer according to the owner. Any warranted part that is scheduled for 31 As the small...
Product Instruction Manual
Page 34
... for the part. 4. Emission Warranty Parts List Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (Ignition Module), Spark Plug, Catalytic Converter (if applicable), Fuel Tank, Fuel Cap, Fuel Line, Fuel Line Fittings, Clamps, Fasteners Where to make a Claim for damages to other engine components caused by the engine manufacturer according to any authorized STIHL servicing dealer or warranty station. Repair or replacement of any warranted part otherwise eligible for warranty coverage may...
... for the part. 4. Emission Warranty Parts List Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (Ignition Module), Spark Plug, Catalytic Converter (if applicable), Fuel Tank, Fuel Cap, Fuel Line, Fuel Line Fittings, Clamps, Fasteners Where to make a Claim for damages to other engine components caused by the engine manufacturer according to any authorized STIHL servicing dealer or warranty station. Repair or replacement of any warranted part otherwise eligible for warranty coverage may...
