Product Instruction Manual
Page 2
... Working Techniques 3 Using the Unit 11 Fuel 12 Fueling 13 Starting / Stopping the Engine 13 Operating Instructions 15 Cleaning the Air Filter 15 Motor Management 16 Adjusting the Carburetor 16 Checking the Spark Plug 18 Engine Running Behavior 19 Lubricating the Gearbox 19 Rewind Starter 19 Storing the Machine 20 Sharpening Instructions 20 Inspections and Maintenance by Dealer 20 Maintenance Chart 21 Parts and Controls 22 Specifications 24 Special Accessories 24 Maintenance and Repairs 25 STIHL Incorporated California...
... Working Techniques 3 Using the Unit 11 Fuel 12 Fueling 13 Starting / Stopping the Engine 13 Operating Instructions 15 Cleaning the Air Filter 15 Motor Management 16 Adjusting the Carburetor 16 Checking the Spark Plug 18 Engine Running Behavior 19 Lubricating the Gearbox 19 Rewind Starter 19 Storing the Machine 20 Sharpening Instructions 20 Inspections and Maintenance by Dealer 20 Maintenance Chart 21 Parts and Controls 22 Specifications 24 Special Accessories 24 Maintenance and Repairs 25 STIHL Incorporated California...
Product Instruction Manual
Page 7
... possible. 6 HS 45 Fuel Your STIHL power tool uses an oilgasoline mixture for fuel leakage while refueling and during operation. Check for fuel (see the chapter on the grip does not fit in the corresponding recess in the tank to cool before starting the engine. Always switch off and spill quantities of your machine. !Warning! Use extreme caution when handling gasoline or fuel mix. If this with different fuel caps. If the...
... possible. 6 HS 45 Fuel Your STIHL power tool uses an oilgasoline mixture for fuel leakage while refueling and during operation. Check for fuel (see the chapter on the grip does not fit in the corresponding recess in the tank to cool before starting the engine. Always switch off and spill quantities of your machine. !Warning! Use extreme caution when handling gasoline or fuel mix. If this with different fuel caps. If the...
Product Instruction Manual
Page 8
.... !Warning! Inspect for loose parts (nuts, screws, etc.) and for proper condition and operation before using the power tool. Never attempt to rewind it is clear of the cutter blades - Check that is a one-person machine. For specific starting , particularly the throttle trigger, throttle trigger interlock, stop switch and cutting tool. Do not let the grip snap back, but guide the starter rope to modify the controls or safety devices. !Warning! English...
.... !Warning! Inspect for loose parts (nuts, screws, etc.) and for proper condition and operation before using the power tool. Never attempt to rewind it is clear of the cutter blades - Check that is a one-person machine. For specific starting , particularly the throttle trigger, throttle trigger interlock, stop switch and cutting tool. Do not let the grip snap back, but guide the starter rope to modify the controls or safety devices. !Warning! English...
Product Instruction Manual
Page 9
... other part of your fingers and thumbs around the handles. For directions on the handles while you cannot set the correct idle speed, have your STIHL dealer check your body. !Warning! Wrap your instruction manual. Left-hand use your power tool with incorrect idle adjustment. Never touch a moving cutting tool with both hands on how to adjust idle speed, see the appropriate section of your power tool and make proper adjustments and repairs. Be...
... other part of your fingers and thumbs around the handles. For directions on the handles while you cannot set the correct idle speed, have your STIHL dealer check your body. !Warning! Wrap your instruction manual. Left-hand use your power tool with incorrect idle adjustment. Never touch a moving cutting tool with both hands on how to adjust idle speed, see the appropriate section of your power tool and make proper adjustments and repairs. Be...
Product Instruction Manual
Page 11
... HS 45 Danger! The muffler could be carrying electric current. !Warning! STIHL does not recommend the use any combustible substances. !Warning! Do not touch the wire with STIHL resin solvent. If the cutting tool becomes clogged or stuck, always turn off the machine - Remove excess lubricant and all times - Never modify your STIHL servicing dealer only. After Finishing Work Always clean dust and dirt off the engine...
... HS 45 Danger! The muffler could be carrying electric current. !Warning! STIHL does not recommend the use any combustible substances. !Warning! Do not touch the wire with STIHL resin solvent. If the cutting tool becomes clogged or stuck, always turn off the machine - Remove excess lubricant and all times - Never modify your STIHL servicing dealer only. After Finishing Work Always clean dust and dirt off the engine...
Product Instruction Manual
Page 13
... specially formulated for use in approved fuel-canisters only. This could cause running problems or even damage the engine. When mixing, pour oil into the mixture. Close the canister and shake it is stored should be cleaned as well. Your engine requires a mixture of 50:1. English / USA Fuel This engine is certified to operate on unleaded gasoline and the STIHL twostroke engine oil at authorized disposal locations. 12 HS 45
... specially formulated for use in approved fuel-canisters only. This could cause running problems or even damage the engine. When mixing, pour oil into the mixture. Close the canister and shake it is stored should be cleaned as well. Your engine requires a mixture of 50:1. English / USA Fuel This engine is certified to operate on unleaded gasoline and the STIHL twostroke engine oil at authorized disposal locations. 12 HS 45
Product Instruction Manual
Page 15
... spark plug boot - cutting blades must not run when engine is cold: (choke position g) : Pull the starter rope five times. : Move the choke lever (6) to e : Continue cranking until engine runs (choke lever to e ) As soon as described under "If engine is cold. : Now start after 10 pulls with the choke lever set to e : Set choke to g , pull the starter rope five times, move choke to e and continue cranking. Note: If the engine does not start the engine. 253BA006 KN 14 HS 45 Do not pull out the starter rope...
... spark plug boot - cutting blades must not run when engine is cold: (choke position g) : Pull the starter rope five times. : Move the choke lever (6) to e : Continue cranking until engine runs (choke lever to e ) As soon as described under "If engine is cold. : Now start after 10 pulls with the choke lever set to e : Set choke to g , pull the starter rope five times, move choke to e and continue cranking. Note: If the engine does not start the engine. 253BA006 KN 14 HS 45 Do not pull out the starter rope...
Product Instruction Manual
Page 17
... the palm of the fundamental engine parameters and components (e.g. warm soapy water) and then dry. : Install a new felt filter element . This setting provides an optimum fuel-air mixture under most operating conditions. General Information HL 3/4 1 LA The carburetor comes from the factory with compressed air - As a temporary measure you can knock it is only possible to adjust the high speed screw within fine limits. 16 HS 45
... the palm of the fundamental engine parameters and components (e.g. warm soapy water) and then dry. : Install a new felt filter element . This setting provides an optimum fuel-air mixture under most operating conditions. General Information HL 3/4 1 LA The carburetor comes from the factory with compressed air - As a temporary measure you can knock it is only possible to adjust the high speed screw within fine limits. 16 HS 45
Product Instruction Manual
Page 18
... Operation at High Altitude or at Sea Level HL 3/4 1 LA A slight correction of the setting of the high speed screw (H) may be one turn counterclockwise : Start and warm up the engine. : Adjust idle speed with the idle speed screw (LA) so that the cutting blades do not run. English / USA Standard Setting : Shut off the engine. : Inspect cutting blades and clean if necessary (clean, move freely, not warped). : Check the air filter and clean or replace if necessary. : Turn high speed screw (H) counterclockwise (max. 3/4 turn...
... Operation at High Altitude or at Sea Level HL 3/4 1 LA A slight correction of the setting of the high speed screw (H) may be one turn counterclockwise : Start and warm up the engine. : Adjust idle speed with the idle speed screw (LA) so that the cutting blades do not run. English / USA Standard Setting : Shut off the engine. : Inspect cutting blades and clean if necessary (clean, move freely, not warped). : Check the air filter and clean or replace if necessary. : Turn high speed screw (H) counterclockwise (max. 3/4 turn...
Product Instruction Manual
Page 19
... TR 18 HS 45 operating at part load. see "Specifications". : Use only resistor type spark plugs of the spark plug. see "Starting / Stopping the Engine". : Clean dirty spark plug. : Check electrode gap (A) and readjust if necessary - If engine is down on power, difficult to form on the insulator nose which have caused fouling of spark plug: : Too much engine oil in the boot may result in trouble in fuel mix. : Dirty air filter. : Unfavorable running conditions (mostly at part throttle etc.) affect...
... TR 18 HS 45 operating at part load. see "Specifications". : Use only resistor type spark plugs of the spark plug. see "Starting / Stopping the Engine". : Clean dirty spark plug. : Check electrode gap (A) and readjust if necessary - If engine is down on power, difficult to form on the insulator nose which have caused fouling of spark plug: : Too much engine oil in the boot may result in trouble in fuel mix. : Dirty air filter. : Unfavorable running conditions (mostly at part throttle etc.) affect...
Product Instruction Manual
Page 20
... to 5 g (1/4 oz) grease into the housing. HS 45 19 After about 50 hours of operation: : Remove the screw plug (1) from the gearbox. : Screw the tube of the starter rope, observe the following points: : Pull the starter rope only in the muffler. : Have the muffler checked for hedge trimmers. Engine Running Behavior Lubricating the Gearbox English / USA Rewind Starter If engine running behavior is unsatisfactory even though the air filter is clean and the carburetor properly adjusted, the cause...
... to 5 g (1/4 oz) grease into the housing. HS 45 19 After about 50 hours of operation: : Remove the screw plug (1) from the gearbox. : Screw the tube of the starter rope, observe the following points: : Pull the starter rope only in the muffler. : Have the muffler checked for hedge trimmers. Engine Running Behavior Lubricating the Gearbox English / USA Rewind Starter If engine running behavior is unsatisfactory even though the air filter is clean and the carburetor properly adjusted, the cause...
Product Instruction Manual
Page 21
... only by a STIHL servicing dealer. Spark arresting screen in the muffler checked STIHL recommends that maintenance and repair work performed by authorized STIHL dealers. 20 HS 45 this work be resharpened if cutting performance and behavior begin to remove burr from cutting edge. : Remove as little material as possible. : After sharpening, clean filing or grinding dust off the blade on the backstroke. : Use a whetstone to deteriorate (i.e. See "Specifications" for prescribed sharpening...
... only by a STIHL servicing dealer. Spark arresting screen in the muffler checked STIHL recommends that maintenance and repair work performed by authorized STIHL dealers. 20 HS 45 this work be resharpened if cutting performance and behavior begin to remove burr from cutting edge. : Remove as little material as possible. : After sharpening, clean filing or grinding dust off the blade on the backstroke. : Use a whetstone to deteriorate (i.e. See "Specifications" for prescribed sharpening...
Product Instruction Manual
Page 22
... Control handle Air filter Filter in fuel tank Fuel tank Carburetor Spark plug Cooling air intake Spark arresting screen in muffler All accessible screws and nuts (not adjusting screws) Cutting blades Gear lubrication Safety label Visual inspection (conditon, leaks) Clean Check operation Clean Replace Have checked by servicing dealer1) Have replaced by servicing dealer1) Clean Check idle setting Readjust idle Readjust electrode gap Replace after about 100 operating hours Visual inspection Clean Have checked by servicing dealer1) Have cleaned or replaced by servicing dealer1 Tighten Clean...
... Control handle Air filter Filter in fuel tank Fuel tank Carburetor Spark plug Cooling air intake Spark arresting screen in muffler All accessible screws and nuts (not adjusting screws) Cutting blades Gear lubrication Safety label Visual inspection (conditon, leaks) Clean Check operation Clean Replace Have checked by servicing dealer1) Have replaced by servicing dealer1) Clean Check idle setting Readjust idle Readjust electrode gap Replace after about 100 operating hours Visual inspection Clean Have checked by servicing dealer1) Have cleaned or replaced by servicing dealer1 Tighten Clean...
Product Instruction Manual
Page 23
English / USA Parts and Controls 2 1 8 4 5 3 6 7 11 10 9 12 1 = Handle (rear) 2 = Throttle trigger interlock 3 = Throttle trigger 4 = Fuel tank 5 = Filter housing 6 = Carburetor adjusting screw 7 = Starting lock 8 = Handle (front) 22 13 14 15 16 9 =Stop switch 10 =Starting throttle lock 11 =Starter grip 12 =Fuel filler cap 13 =Muffler 14 =Spark plug boot 15 =Fuel pump 16 =Choke lever 19 18 17 17 =Cutter guard 18 =Cutting blades 19 =Cutter blade guard HS 45 253BA011 KN
English / USA Parts and Controls 2 1 8 4 5 3 6 7 11 10 9 12 1 = Handle (rear) 2 = Throttle trigger interlock 3 = Throttle trigger 4 = Fuel tank 5 = Filter housing 6 = Carburetor adjusting screw 7 = Starting lock 8 = Handle (front) 22 13 14 15 16 9 =Stop switch 10 =Starting throttle lock 11 =Starter grip 12 =Fuel filler cap 13 =Muffler 14 =Spark plug boot 15 =Fuel pump 16 =Choke lever 19 18 17 17 =Cutter guard 18 =Cutting blades 19 =Cutter blade guard HS 45 253BA011 KN
Product Instruction Manual
Page 24
... front of the pull starter, which covers the air filter. 6. HS 45 23 Must be depressed before activating the throttle trigger. 3. For gasoline and oil mixture. 5. Filter Housing. The grip of hedge trimmer. 9. Choke Lever. Covers cutter blade when hedge trimmer is the device to reduce the risk of the hedge trimmer. 2. Starting Throttle Lock. Connects the spark plug with the ignition wire. 15. Cutter Blade Guard. Throttle Trigger Interlock. Housing, which is not in use. Throttle Trigger. Stop switch. Switches the engine's ignition system off and...
... front of the pull starter, which covers the air filter. 6. HS 45 23 Must be depressed before activating the throttle trigger. 3. For gasoline and oil mixture. 5. Filter Housing. The grip of hedge trimmer. 9. Choke Lever. Covers cutter blade when hedge trimmer is the device to reduce the risk of the hedge trimmer. 2. Starting Throttle Lock. Connects the spark plug with the ignition wire. 15. Cutter Blade Guard. Throttle Trigger Interlock. Housing, which is not in use. Throttle Trigger. Stop switch. Switches the engine's ignition system off and...
Product Instruction Manual
Page 27
... the problem exists. As the small off -road equipment engine to meet all applicable emission regulations. The warranty repairs should however be designed, built, and equipped to a STIHL servicing dealer as soon as : Air filter, Carburetor, Purger, 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. STIHL Incorporated must be aware that uses...
... the problem exists. As the small off -road equipment engine to meet all applicable emission regulations. The warranty repairs should however be designed, built, and equipped to a STIHL servicing dealer as soon as : Air filter, Carburetor, Purger, 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. STIHL Incorporated must be aware that uses...
Product Instruction Manual
Page 28
... replacement of time prior to the owner. If any non exempted add on emission related parts and must be replaced by STIHL Incorporated at no cost to Subsection (4) below ) must be repaired or replaced by CARB may be used . Add on your engine is defective. The use of any emission related part on or modified parts that part. STIHL Incorporated will not be grounds for any warranty maintenance...
... replacement of time prior to the owner. If any non exempted add on emission related parts and must be replaced by STIHL Incorporated at no cost to Subsection (4) below ) must be repaired or replaced by CARB may be used . Add on your engine is defective. The use of any emission related part on or modified parts that part. STIHL Incorporated will not be grounds for any warranty maintenance...
Product Instruction Manual
Page 29
... cause of the need for warranty coverage. 28 HS 45 Limitations The repair or replacement of any authorized STIHL servicing dealer and present the signed STIHL product registration card, or the print-out of the electronic product registration. English / USA Emission Warranty Parts List Air filter, Carburetor, Purger, 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...
... cause of the need for warranty coverage. 28 HS 45 Limitations The repair or replacement of any authorized STIHL servicing dealer and present the signed STIHL product registration card, or the print-out of the electronic product registration. English / USA Emission Warranty Parts List Air filter, Carburetor, Purger, 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...
Product Instruction Manual
Page 30
... by STIHL Incorporated free of all receipts covering maintenance on your failure to the ultimate purchaser. Owner's Warranty Responsibilities: As the small off -road equipment engine owner, you retain all scheduled maintenance. STIHL Incorporated recommends that STIHL Incorporated may be aware, however, that you should be hoses, and connectors and other emission related assemblies. Your emission control system includes parts such as a problem exists. HS 45 29...
... by STIHL Incorporated free of all receipts covering maintenance on your failure to the ultimate purchaser. Owner's Warranty Responsibilities: As the small off -road equipment engine owner, you retain all scheduled maintenance. STIHL Incorporated recommends that STIHL Incorporated may be aware, however, that you should be hoses, and connectors and other emission related assemblies. Your emission control system includes parts such as a problem exists. HS 45 29...
Product Instruction Manual
Page 31
... and mixing ratio of fuel and oil may be warranted for the warranty period. Limitations This Emission Control Systems Warranty shall not cover any of the following list specifically defines the emission-related warranted parts: Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark plug Magneto or electronic ignition system (ignition module) Catalytic converter (if applicable) Fasteners Where to make a claim for Warranty Service Bring the product to any authorized STIHL servicing...
... and mixing ratio of fuel and oil may be warranted for the warranty period. Limitations This Emission Control Systems Warranty shall not cover any of the following list specifically defines the emission-related warranted parts: Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark plug Magneto or electronic ignition system (ignition module) Catalytic converter (if applicable) Fasteners Where to make a claim for Warranty Service Bring the product to any authorized STIHL servicing...