Instruction Manual
Page 2
... using your STIHL dealer for your STIHL hedge trimmer, it is important that you do not understand any of the instructions in Muffler 17 Checking the Spark Plug 18 Lubricating Gearbox 19 Replacing the Starter Rope and Rewind Spring 19 Storing the Machine 22 Sharpening Instructions 22 Maintenance Chart 23 Parts and Controls 24 Specifications 26 Special Accessories 27 Maintenance and Repairs 27 STIHL Incorporated Federal and California Emission Control Warranty Statement 28 STIHl HS 75, HS...
... using your STIHL dealer for your STIHL hedge trimmer, it is important that you do not understand any of the instructions in Muffler 17 Checking the Spark Plug 18 Lubricating Gearbox 19 Replacing the Starter Rope and Rewind Spring 19 Storing the Machine 22 Sharpening Instructions 22 Maintenance Chart 23 Parts and Controls 24 Specifications 26 Special Accessories 27 Maintenance and Repairs 27 STIHL Incorporated Federal and California Emission Control Warranty Statement 28 STIHl HS 75, HS...
Instruction Manual
Page 4
... cut you have different parts and controls. The use of all applicable local safety regulations, standards and ordinances. !Warning! See the appropriate section of your owner's manual for avoiding injury of your model hedge trimmer. the operator 2. THE OPERATOR! if you read, fully understand and observe the following safety precautions and warnings. HS 75, HS 80 3 Observe all STIHL hedge trimmers. Never let the hedge trimmer run...
... cut you have different parts and controls. The use of all applicable local safety regulations, standards and ordinances. !Warning! See the appropriate section of your owner's manual for avoiding injury of your model hedge trimmer. the operator 2. THE OPERATOR! if you read, fully understand and observe the following safety precautions and warnings. HS 75, HS 80 3 Observe all STIHL hedge trimmers. Never let the hedge trimmer run...
Instruction Manual
Page 6
... certain unauthorized attachments are at idle speed. The correct engine idle speed is correct, the cutter blades will be engaged when the cutter blades are useable for use may, in any way. The starting lock before transporting the hedge trimmer over the cutter blades before transporting the machine (see the chapter on branches, brush or moving parts of the unit. Always switch off the engine and fit...
... certain unauthorized attachments are at idle speed. The correct engine idle speed is correct, the cutter blades will be engaged when the cutter blades are useable for use may, in any way. The starting lock before transporting the hedge trimmer over the cutter blades before transporting the machine (see the chapter on branches, brush or moving parts of the unit. Always switch off the engine and fit...
Instruction Manual
Page 7
... happens, change your hedge trimmer carefully so as to the idle position.The cutting tool must move at all times; Gasoline vapor pressure may build up in well ventilated areas, outdoors. !Warning! Wipe off any spilled fuel before starting, particularly the throttle trigger, throttle trigger interlock, stop switch, cutting tool and starting the engine. Inspect for loose parts (nuts, screws, etc.) and for fuel leakage while refueling and during operation. Keep the handles clean and dry...
... happens, change your hedge trimmer carefully so as to the idle position.The cutting tool must move at all times; Gasoline vapor pressure may build up in well ventilated areas, outdoors. !Warning! Wipe off any spilled fuel before starting, particularly the throttle trigger, throttle trigger interlock, stop switch, cutting tool and starting the engine. Inspect for loose parts (nuts, screws, etc.) and for fuel leakage while refueling and during operation. Keep the handles clean and dry...
Instruction Manual
Page 9
... throttle trigger is released (flywheel effect). Never use a hedge trimmer with one hand. Important adjustments !Warning To reduce the risk of personal injury from loss of this manual. 8 HS 75, HS 80 If you cannot set the correct idle speed, have good footing. MAINTENANCE, REPAIR AND STORING Maintenance, replacement, or repair of parts manufactured by any nonroad engine repair establishment or individual. Use of the emission control devices and systems may be used , STIHL...
... throttle trigger is released (flywheel effect). Never use a hedge trimmer with one hand. Important adjustments !Warning To reduce the risk of personal injury from loss of this manual. 8 HS 75, HS 80 If you cannot set the correct idle speed, have good footing. MAINTENANCE, REPAIR AND STORING Maintenance, replacement, or repair of parts manufactured by any nonroad engine repair establishment or individual. Use of the emission control devices and systems may be used , STIHL...
Instruction Manual
Page 10
... adapter nut, it immediately for spraying the cutter blades. Then start and run the hedge trimmer briefly so that the resin solvent is damaged, missing or modified. Never touch a hot muffler or burn will increase the risk of fire and hearing loss. Keep the engine and muffler free from spark plug or with ignition wire terminal removed from cuttings, chips, leaves, fibers and excess lubricant. HS 75, HS...
... adapter nut, it immediately for spraying the cutter blades. Then start and run the hedge trimmer briefly so that the resin solvent is damaged, missing or modified. Never touch a hot muffler or burn will increase the risk of fire and hearing loss. Keep the engine and muffler free from spark plug or with ignition wire terminal removed from cuttings, chips, leaves, fibers and excess lubricant. HS 75, HS...
Instruction Manual
Page 11
... be checked with a feeler gauge at a time in several passes. Use lopping shears to the warranty statement near the end of the cutting blade. 366BA024 KN 10 HS 75, HS 80 Keep cutting tool sharp. Tighten all country-specific and local regulations and ordinances regarding hedge trimming. Cutting season Observe all nuts, bolts and screws except the carburetor adjustment screws after each use. Cut both sides of this manual. Cutting sequence If a radical cut is necessary, cut...
... be checked with a feeler gauge at a time in several passes. Use lopping shears to the warranty statement near the end of the cutting blade. 366BA024 KN 10 HS 75, HS 80 Keep cutting tool sharp. Tighten all country-specific and local regulations and ordinances regarding hedge trimming. Cutting season Observe all nuts, bolts and screws except the carburetor adjustment screws after each use. Cut both sides of this manual. Cutting sequence If a radical cut is necessary, cut...
Instruction Manual
Page 12
... unleaded gasoline and the STIHL twostroke engine oil at a mix ratio of 50:1. Avoid direct contact with the skin and avoid inhaling fuel vapor. they are sitting in both water cooled and air cooled engines (e.g., outboard motors, snowmobiles, chainsaws, mopeds, etc.). HS 75, HS 80 11 If the octane rating of the mid-grade gasoline in air cooled two-cycle engines. Swing the blade in an arc...
... unleaded gasoline and the STIHL twostroke engine oil at a mix ratio of 50:1. Avoid direct contact with the skin and avoid inhaling fuel vapor. they are sitting in both water cooled and air cooled engines (e.g., outboard motors, snowmobiles, chainsaws, mopeds, etc.). HS 75, HS 80 11 If the octane rating of the mid-grade gasoline in air cooled two-cycle engines. Swing the blade in an arc...
Instruction Manual
Page 15
.... : Refit the spark plug. : Connect the spark plug boot (press it down firmly). : Set slide control to # : Set choke lever to idle speed. : Open the throttle part way and warm up . If the engine doesn't start: If you did not move the choke lever to e quickly enough after the engine began to fire, the combustion chamber is cold. : Now start the engine. 14 HS 75, HS 80 Do not pull out the starter rope all the...
.... : Refit the spark plug. : Connect the spark plug boot (press it down firmly). : Set slide control to # : Set choke lever to idle speed. : Open the throttle part way and warm up . If the engine doesn't start: If you did not move the choke lever to e quickly enough after the engine began to fire, the combustion chamber is cold. : Now start the engine. 14 HS 75, HS 80 Do not pull out the starter rope all the...
Instruction Manual
Page 16
... for engine to 15 tank fillings. Check tightness of nuts and screws (not adjusting screws) at high revs (full throttle off load) for the first three tank fillings. Do not wash. Operating Instructions Cleaning the Air Filter English / USA During break-in period A factory new machine should not be run for a while at idle speed so that it out with compressed air. During operation After a long period of engine power : Move choke lever to run at...
... for engine to 15 tank fillings. Check tightness of nuts and screws (not adjusting screws) at high revs (full throttle off load) for the first three tank fillings. Do not wash. Operating Instructions Cleaning the Air Filter English / USA During break-in period A factory new machine should not be run for a while at idle speed so that it out with compressed air. During operation After a long period of engine power : Move choke lever to run at...
Instruction Manual
Page 17
... a high speed adjusting screw (H screw). Adjustment of maximum engine speed is set at the factory to provide an optimum fuel-air mixture under most operating conditions. carburation, ignition, timing and valve or port timing) without the addition of any major hardware. Idling and part-load emissions are controlled by limiting the idle mixture. : Check the cutting blades and clean if necessary (they must be clean, move freely and not be bent or warped). : Check the air filter and clean it one turn...
... a high speed adjusting screw (H screw). Adjustment of maximum engine speed is set at the factory to provide an optimum fuel-air mixture under most operating conditions. carburation, ignition, timing and valve or port timing) without the addition of any major hardware. Idling and part-load emissions are controlled by limiting the idle mixture. : Check the cutting blades and clean if necessary (they must be clean, move freely and not be bent or warped). : Check the air filter and clean it one turn...
Instruction Manual
Page 18
... this Manual" HS 75, HS 80 17 Cutting blades run when engine is idling: Check standard setting. (L screw must be one turn open ) : Turn idle speed screw (LA) slowly counterclockwise until the cutting blades stop running at idle speed and turn the screw about another one half turn in Muffler English / USA Adjusting Idle Speed Engine stops while idling: Check standard setting. (L screw must be one turn open ) : Turn idle speed screw (LA) slowly clockwise until the cutting blades start running and then turn counterclockwise. Take out the screw (1). : Remove the spark arresting screen...
... this Manual" HS 75, HS 80 17 Cutting blades run when engine is idling: Check standard setting. (L screw must be one turn open ) : Turn idle speed screw (LA) slowly counterclockwise until the cutting blades stop running at idle speed and turn the screw about another one half turn in Muffler English / USA Adjusting Idle Speed Engine stops while idling: Check standard setting. (L screw must be one turn open ) : Turn idle speed screw (LA) slowly clockwise until the cutting blades start running and then turn counterclockwise. Take out the screw (1). : Remove the spark arresting screen...
Instruction Manual
Page 19
... nut, it must be attached.) A loose connection between spark plug boot and ignition wire connector in the gasoline), a dirty air filter and unfavorable running conditions, e.g. Rectify problems which may create arcing that could ignite combustible fumes and cause a fire. 000BA002 KN 000BA036 TR 18 HS 75, HS 80 see "Specifications". : Use only resistor type spark plugs of the approved range. Always press spark plug boot (2) snugly onto spark plug terminal (1) of spark plug: : Too much engine oil...
... nut, it must be attached.) A loose connection between spark plug boot and ignition wire connector in the gasoline), a dirty air filter and unfavorable running conditions, e.g. Rectify problems which may create arcing that could ignite combustible fumes and cause a fire. 000BA002 KN 000BA036 TR 18 HS 75, HS 80 see "Specifications". : Use only resistor type spark plugs of the approved range. Always press spark plug boot (2) snugly onto spark plug terminal (1) of spark plug: : Too much engine oil...
Instruction Manual
Page 20
... every 25 hours of operation. : Remove screw plug (1) from gear housing. : Screw the tube of the tube to lubricate the blade drive gear about 3/4 oz (20 g) grease into the filler hole. : Roll up the end of grease (2) into the gearbox. : Refit screw plug and tighten securely. : Remove the screws (1). : Lift the starter cover (2) off the engine (3). : Take out the screw (4). : Remove the rope rotor very carefully - the rewind spring is seated in the...
... every 25 hours of operation. : Remove screw plug (1) from gear housing. : Screw the tube of the tube to lubricate the blade drive gear about 3/4 oz (20 g) grease into the filler hole. : Roll up the end of grease (2) into the gearbox. : Refit screw plug and tighten securely. : Remove the screws (1). : Lift the starter cover (2) off the engine (3). : Take out the screw (4). : Remove the rope rotor very carefully - the rewind spring is seated in the...
Instruction Manual
Page 23
... unsatisfactory cutting results. 22 HS 75, HS 80 Do not operate your STIHL dealer on the backstroke. : Use a whetstone to the cylinder fins and air filter. : Store the machine in a well ventilated area. : Run engine until carburetor is dry this helps prevent carburetor diaphragms sticking together. : Clean the cutting blades, check condition and spray with STIHL resin solvent. : Thoroughly clean the machine - pay special attention to remove burr from cutting edge. : Remove...
... unsatisfactory cutting results. 22 HS 75, HS 80 Do not operate your STIHL dealer on the backstroke. : Use a whetstone to the cylinder fins and air filter. : Store the machine in a well ventilated area. : Run engine until carburetor is dry this helps prevent carburetor diaphragms sticking together. : Clean the cutting blades, check condition and spray with STIHL resin solvent. : Thoroughly clean the machine - pay special attention to remove burr from cutting edge. : Remove...
Instruction Manual
Page 24
Complete machine 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 Visual inspection (conditon, leaks) Clean Check operation Clean Replace Check* Replace* Clean Check idle setting Readjust idle Readjust electrode gap Visual inspection Clean Check* Clean* or replace* Tighten Clean Sharpen Check Top up X X X X X X X X X * STIHL Service HS 75, HS 80 before starting work after finishing work area etc.), shorten the ...
Complete machine 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 Visual inspection (conditon, leaks) Clean Check operation Clean Replace Check* Replace* Clean Check idle setting Readjust idle Readjust electrode gap Visual inspection Clean Check* Clean* or replace* Tighten Clean Sharpen Check Top up X X X X X X X X X * STIHL Service HS 75, HS 80 before starting work after finishing work area etc.), shorten the ...
Instruction Manual
Page 26
... hedge trimmer. 2. Fuel Pump. Handle bar for rotating the rear handle. 19. For closing the fuel tank. 5. Polymer housing which covers the air filter. 11. Housing, which encloses the power unit. 9. Starter Grip. Throttle Trigger. Must be depressed before activating the throttle trigger. 18. Helps to reduce the risk of the engine. 17. Front Handle. Choke Lever. Carburetor Adjustment Screws. The grip of cutting blades during starting by the cutting blades. 20. Controls the speed of operator contact by enriching mixture. 10. HS 75, HS 80 25 Lever for...
... hedge trimmer. 2. Fuel Pump. Handle bar for rotating the rear handle. 19. For closing the fuel tank. 5. Polymer housing which covers the air filter. 11. Housing, which encloses the power unit. 9. Starter Grip. Throttle Trigger. Must be depressed before activating the throttle trigger. 18. Helps to reduce the risk of the engine. 17. Front Handle. Choke Lever. Carburetor Adjustment Screws. The grip of cutting blades during starting by the cutting blades. 20. Controls the speed of operator contact by enriching mixture. 10. HS 75, HS 80 25 Lever for...
Instruction Manual
Page 28
... STIHL dealer using original STIHL replacement parts. Other repair work may appear alone on these and other special accessories. English / USA HS 75, HS 80 27 Special Accessories Maintenance and Repairs STIHL resin solvent for cleaning cutting blades STIHL gear lubricant 80g/3oz tube 225g/8oz tube Contact your STIHL dealer for more information on small parts. The user of this unit should carry out only the maintenance operations described in this manual...
... STIHL dealer using original STIHL replacement parts. Other repair work may appear alone on these and other special accessories. English / USA HS 75, HS 80 27 Special Accessories Maintenance and Repairs STIHL resin solvent for cleaning cutting blades STIHL gear lubricant 80g/3oz tube 225g/8oz tube Contact your STIHL dealer for more information on small parts. The user of this unit should carry out only the maintenance operations described in this manual...
Instruction Manual
Page 29
... the Emission Control System Warranty on your small off -road equipment engine. STIHL Incorporated must be repaired or replaced by STIHL Incorporated free of sale to a STIHL service center as soon as the carburetor and the ignition system. In other emission related assemblies. If any questions regarding your warranty rights and responsibilities, please contact a STIHL customer service representative at the time of all applicable regulations. Owner's Warranty Responsibilities: As...
... the Emission Control System Warranty on your small off -road equipment engine. STIHL Incorporated must be repaired or replaced by STIHL Incorporated free of sale to a STIHL service center as soon as the carburetor and the ignition system. In other emission related assemblies. If any questions regarding your warranty rights and responsibilities, please contact a STIHL customer service representative at the time of all applicable regulations. Owner's Warranty Responsibilities: As...
Instruction Manual
Page 30
... owner. STIHL Incorporated is liable for damages to the owner if it is determined that a warranted part is defective. The California Air Resources Board's Emission Warranty Parts List specifically defines the emission-related warranted parts. HS 75, HS 80 29 Maintenance Requirements The maintenance instructions in writing by STIHL Incorporated, and : replacement of parts and other engine components caused by the failure of fuel and oil may be performed at any authorized STIHL servicing...
... owner. STIHL Incorporated is liable for damages to the owner if it is determined that a warranted part is defective. The California Air Resources Board's Emission Warranty Parts List specifically defines the emission-related warranted parts. HS 75, HS 80 29 Maintenance Requirements The maintenance instructions in writing by STIHL Incorporated, and : replacement of parts and other engine components caused by the failure of fuel and oil may be performed at any authorized STIHL servicing...