Instruction Manual
Page 4
... different parts and controls. If the cutting tool comes in loss of your hedge trimmer understands the information contained in areas where the blades could damage the cutting attachment and may cause serious or fatal injury. See the appropriate section of your hedge trimmer. Be alert -... run unattended. !Warning! Observe all STIHL hedge trimmers. Do not lend or rent your body, it will cut you. Do not operate a hedge trimmer when you are fatigued. HS 75, HS 80 3 STIHL does not recommend the use of any hedge trimmer may cause blades to use of the hedge trimmer.
... different parts and controls. If the cutting tool comes in loss of your hedge trimmer understands the information contained in areas where the blades could damage the cutting attachment and may cause serious or fatal injury. See the appropriate section of your hedge trimmer. Be alert -... run unattended. !Warning! Observe all STIHL hedge trimmers. Do not lend or rent your body, it will cut you. Do not operate a hedge trimmer when you are fatigued. HS 75, HS 80 3 STIHL does not recommend the use of any hedge trimmer may cause blades to use of the hedge trimmer.
Instruction Manual
Page 6
... of injury to protect your legs. Only attachments supplied by STIHL or expressly approved by STIHL for the STIHL hedge trimmer, their use with the cutter blades running. If the carburetor setting is a danger of heavy material to the hedge trimmer. 366BA001 LÄ HS 75, HS 80 5 Good footing is important in hedge trimmer work. Always switch...
... of injury to protect your legs. Only attachments supplied by STIHL or expressly approved by STIHL for the STIHL hedge trimmer, their use with the cutter blades running. If the carburetor setting is a danger of heavy material to the hedge trimmer. 366BA001 LÄ HS 75, HS 80 5 Good footing is important in hedge trimmer work. Always switch...
Instruction Manual
Page 7
... the handles clean and dry at least 10 feet (3 m) from the fueling spot before starting work - Apply generously. Fueling Your STIHL hedge trimmer uses an oil-gasoline mixture for fueling and move freely and always spring back to serious injury. Take care not to ...run the engine until leak is running or hot engine. 6 HS 75, HS 80 with the engine stopped! Inspect for loose parts (nuts, screws, etc.) and for fuel leakage while refueling and during operation. Service damaged cutter blades before starting, particularly the throttle trigger, throttle trigger interlock, stop ...
... the handles clean and dry at least 10 feet (3 m) from the fueling spot before starting work - Apply generously. Fueling Your STIHL hedge trimmer uses an oil-gasoline mixture for fueling and move freely and always spring back to serious injury. Take care not to ...run the engine until leak is running or hot engine. 6 HS 75, HS 80 with the engine stopped! Inspect for loose parts (nuts, screws, etc.) and for fuel leakage while refueling and during operation. Service damaged cutter blades before starting, particularly the throttle trigger, throttle trigger interlock, stop ...
Instruction Manual
Page 8
...cap to engage and move the cutting tool. Place the hedge trimmer on firm ground or other solid objects which could damage the cutter blades. When the engine starts at startingthrottle, engine speed will be fast enough for the clutch to loosen or come off and spill quantities... reduce risk of your hedge trimmer. Be careful on slopes. Start and operate your hand. For specific starting . HS 75, HS 80 7 To reduce the risk of injury from blade contact or loss of control always engage the starting lock before starting instructions, see the appropriate section of fuel spillage ...
...cap to engage and move the cutting tool. Place the hedge trimmer on firm ground or other solid objects which could damage the cutter blades. When the engine starts at startingthrottle, engine speed will be fast enough for the clutch to loosen or come off and spill quantities... reduce risk of your hedge trimmer. Be careful on slopes. Start and operate your hand. For specific starting . HS 75, HS 80 7 To reduce the risk of injury from blade contact or loss of control always engage the starting lock before starting instructions, see the appropriate section of fuel spillage ...
Instruction Manual
Page 9
... if nonapproved replacement parts were used, STIHL may be performed by others . 366BA037 LA When working . MAINTENANCE, REPAIR AND STORING Maintenance, replacement, or repair of this manual. 8 HS 75, HS 80 Always work on for a short period after the throttle trigger is released (flywheel effect). If the cutter blades become jammed by thick branches or...
... if nonapproved replacement parts were used, STIHL may be performed by others . 366BA037 LA When working . MAINTENANCE, REPAIR AND STORING Maintenance, replacement, or repair of this manual. 8 HS 75, HS 80 Always work on for a short period after the throttle trigger is released (flywheel effect). If the cutter blades become jammed by thick branches or...
Instruction Manual
Page 10
...fires is very dusty and dirty, spray the cutter blades more frequently. An aerosol can of resin solvent (protective spray), Part No. 0782 420 1002, is available for tightness or any maintenance or repair work . HS 75, HS 80 9 Always press spark plug boot snugly onto spark... This resin solvent protects the cutter blades and has anticorrosive properties. This greatly reduces blade friction and the damaging effects of sap and dust particles. !Warning Do not operate your STIHL service shop only. !Warning Never repair damaged cutting attachments by STIHL. This may cause a fire. ...
...fires is very dusty and dirty, spray the cutter blades more frequently. An aerosol can of resin solvent (protective spray), Part No. 0782 420 1002, is available for tightness or any maintenance or repair work . HS 75, HS 80 9 Always press spark plug boot snugly onto spark... This resin solvent protects the cutter blades and has anticorrosive properties. This greatly reduces blade friction and the damaging effects of sap and dust particles. !Warning Do not operate your STIHL service shop only. !Warning Never repair damaged cutting attachments by STIHL. This may cause a fire. ...
Instruction Manual
Page 11
... screws after each use. Do not use both sides of the hedge first, then the top. Cutting techniques Vertical cut: Swing the cutting blade up and down in an arc as you move along the hedge use your hedge trimmer during other people's rest periods. Keep cutting tool ... not modify or remove any maintenance please refer to the maintenance chart and to the warranty statement near the end of the cutting blade. 366BA024 KN 10 HS 75, HS 80 Tighten all country-specific and local regulations and ordinances regarding hedge trimming. Cutting sequence If a radical cut is necessary, cut a ...
... screws after each use. Do not use both sides of the hedge first, then the top. Cutting techniques Vertical cut: Swing the cutting blade up and down in an arc as you move along the hedge use your hedge trimmer during other people's rest periods. Keep cutting tool ... not modify or remove any maintenance please refer to the maintenance chart and to the warranty statement near the end of the cutting blade. 366BA024 KN 10 HS 75, HS 80 Tighten all country-specific and local regulations and ordinances regarding hedge trimming. Cutting sequence If a radical cut is necessary, cut a ...
Instruction Manual
Page 12
..., HS 80 11 The chemical composition of the fuel is specially formulated for use only nationally recognized high-quality unleaded gasoline! Take care when handling gasoline. they are sitting in or on unleaded gasoline and the STIHL twostroke engine oil at an angle of 0° to 10° as you ... engine oil. This, in which fuel mix is certified to the ground. Fuel English / USA 0 - 10° Horizontal cut: Hold the cutting blade at a mix ratio of 50:1. The canister should be kept tightly closed in an arc towards the outside of piston seizure and damage to avoid...
..., HS 80 11 The chemical composition of the fuel is specially formulated for use only nationally recognized high-quality unleaded gasoline! Take care when handling gasoline. they are sitting in or on unleaded gasoline and the STIHL twostroke engine oil at an angle of 0° to 10° as you ... engine oil. This, in which fuel mix is certified to the ground. Fuel English / USA 0 - 10° Horizontal cut: Hold the cutting blade at a mix ratio of 50:1. The canister should be kept tightly closed in an arc towards the outside of piston seizure and damage to avoid...
Instruction Manual
Page 14
...twist lock while you are operating the throttle. : Observe safety precautions. : Move the blade lock lever (1) to position z. : Squeeze the throttle trigger (2) and move the slide... the choke lever (4): For cold start to g For warm start to n at least five times. HS 75, HS 80 13 Let go of throttle trigger Do not open the throttle : Release the twist lock (1). Turn the... (2) as required and allow twist lock to the left or right for better control and comfort. Rear Handle (HS 80 only) Starting / Stopping the Engine English / USA 366BA010 KN 2 1 90° 4 4 366BA031 LA 366BA039...
...twist lock while you are operating the throttle. : Observe safety precautions. : Move the blade lock lever (1) to position z. : Squeeze the throttle trigger (2) and move the slide... the choke lever (4): For cold start to g For warm start to n at least five times. HS 75, HS 80 13 Let go of throttle trigger Do not open the throttle : Release the twist lock (1). Turn the... (2) as required and allow twist lock to the left or right for better control and comfort. Rear Handle (HS 80 only) Starting / Stopping the Engine English / USA 366BA010 KN 2 1 90° 4 4 366BA031 LA 366BA039...
Instruction Manual
Page 15
it down to e even if engine is secure. : Remove the blade scabbard before starting. : Make sure you have a firm footing: Hold the unit with you left hand on the ground with the...engine runs, blip the throttle trigger, the slide control moves to the run position # and the engine settles down to idle speed. : Move the blade lock lever to O. English / USA : Put the unit on the front handle and press it down the engine: : Move the slide control to...: Set choke lever to idle speed. : Open the throttle part way and warm up . If the engine doesn't start the engine. 14 HS 75, HS 80
it down to e even if engine is secure. : Remove the blade scabbard before starting. : Make sure you have a firm footing: Hold the unit with you left hand on the ground with the...engine runs, blip the throttle trigger, the slide control moves to the run position # and the engine settles down to idle speed. : Move the blade lock lever to O. English / USA : Put the unit on the front handle and press it down the engine: : Move the slide control to...: Set choke lever to idle speed. : Open the throttle part way and warm up . If the engine doesn't start the engine. 14 HS 75, HS 80
Instruction Manual
Page 17
... 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 counterclockwise (standard setting, L = 1). 16 HS 75, HS 80 Adjustment of maximum engine speed is set at the factory...
... 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 counterclockwise (standard setting, L = 1). 16 HS 75, HS 80 Adjustment of maximum engine speed is set at the factory...
Instruction Manual
Page 18
...engine is idling: Check standard setting. (L screw must be one turn open ) : Turn idle speed screw (LA) slowly clockwise until the cutting blades stop running and then turn one half turn in the same direction. 1 2 If the engine is low on power, check the spark arresting ...up, fit a new one. : Refit the spark arresting screen. : Fit the shroud. * see "Guide to cool down completely before performing this Manual" HS 75, HS 80 17 Spark Arresting Screen in Muffler English / USA Adjusting Idle Speed Engine stops while idling: Check standard setting. (L screw must be one turn open ) :...
...engine is idling: Check standard setting. (L screw must be one turn open ) : Turn idle speed screw (LA) slowly clockwise until the cutting blades stop running and then turn one half turn in the same direction. 1 2 If the engine is low on power, check the spark arresting ...up, fit a new one. : Refit the spark arresting screen. : Fit the shroud. * see "Guide to cool down completely before performing this Manual" HS 75, HS 80 17 Spark Arresting Screen in Muffler English / USA Adjusting Idle Speed Engine stops while idling: Check standard setting. (L screw must be one turn open ) :...
Instruction Manual
Page 20
HS 75, HS 80 19 the rewind spring is seated in the rope rotor and may pop out, uncoil and cause injury if care is not taken. Lubricating Gearbox 1 2 Replacing the Starter Rope and Rewind Spring 1 3 2 1 1 English / USA 4 367BA021 KN 366BA018 KN 366BA028 KN Use STIHL gear lubricant for ...hedge trimmers (see "Specifications") to the next division on the scale. This forces about 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...
HS 75, HS 80 19 the rewind spring is seated in the rope rotor and may pop out, uncoil and cause injury if care is not taken. Lubricating Gearbox 1 2 Replacing the Starter Rope and Rewind Spring 1 3 2 1 1 English / USA 4 367BA021 KN 366BA018 KN 366BA028 KN Use STIHL gear lubricant for ...hedge trimmers (see "Specifications") to the next division on the scale. This forces about 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...
Instruction Manual
Page 23
... a workshop sharpener. This may cause overload and will give unsatisfactory cutting results. 22 HS 75, HS 80 The blades must be resharpened if cutting performance and behavior begin to the cylinder fins and air filter. : Store the machine in a well ventilated... crosscut sharpening file. It 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 - Do not operate your STIHL dealer on the backstroke. : Use a whetstone to remove burr from cutting edge. : Remove as ...
... a workshop sharpener. This may cause overload and will give unsatisfactory cutting results. 22 HS 75, HS 80 The blades must be resharpened if cutting performance and behavior begin to the cylinder fins and air filter. : Store the machine in a well ventilated... crosscut sharpening file. It 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 - Do not operate your STIHL dealer on the backstroke. : Use a whetstone to remove burr from cutting edge. : Remove as ...
Instruction Manual
Page 24
... 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 each refueling stop...
... 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 each refueling stop...
Instruction Manual
Page 25
English / USA Parts and Controls 366BA023 LA 1 Front Handle 2 Spark Plug Boot 3 Blade Lock 4 Fuel Filler Cap 5 Rear Handle 6 Cutting Blades 24 7 Cutting Blade Scabbard 8 Shroud 9 Choke Lever 10 Filter Housing 11 Carburetor Adjusting Screws 12 Starter Grip 13 Slide Control 14 Fuel Tank 15 Muffler 16 Throttle Trigger 17 Throttle Trigger Interlock 18 Twist Lock (HS 80 only) 19 Cutting Blade Guard 20 Fuel Pump HS 75, HS 80
English / USA Parts and Controls 366BA023 LA 1 Front Handle 2 Spark Plug Boot 3 Blade Lock 4 Fuel Filler Cap 5 Rear Handle 6 Cutting Blades 24 7 Cutting Blade Scabbard 8 Shroud 9 Choke Lever 10 Filter Housing 11 Carburetor Adjusting Screws 12 Starter Grip 13 Slide Control 14 Fuel Tank 15 Muffler 16 Throttle Trigger 17 Throttle Trigger Interlock 18 Twist Lock (HS 80 only) 19 Cutting Blade Guard 20 Fuel Pump HS 75, HS 80
Instruction Manual
Page 26
... is the device to prevent movement of hedge trimmer. 2. Polymer housing which covers the air filter. 11. Choke Lever. Eases engine starting by the cutting blades. 20. Filter Housing. Housing, which encloses the power unit. 9. Starter Grip. The grip of the engine. 17. Slide Control. Fuel Tank. For gasoline.... 15. Throttle Trigger Interlock. Must be depressed before activating the throttle trigger. 18. Lever for the right hand, located at front of cutting blades during starting throttle and stop switch. 14. Cutting Blade Guard. Fuel Pump. HS 75, HS 80 25
... is the device to prevent movement of hedge trimmer. 2. Polymer housing which covers the air filter. 11. Choke Lever. Eases engine starting by the cutting blades. 20. Filter Housing. Housing, which encloses the power unit. 9. Starter Grip. The grip of the engine. 17. Slide Control. Fuel Tank. For gasoline.... 15. Throttle Trigger Interlock. Must be depressed before activating the throttle trigger. 18. Lever for the right hand, located at front of cutting blades during starting throttle and stop switch. 14. Cutting Blade Guard. Fuel Pump. HS 75, HS 80 25
Instruction Manual
Page 27
... Compliance Period referred to on the CARB-Air Index Label indicates the terms: Extended = 300 hours, Intermediate = 125 hours, Moderate = 50 hours Engine STIHL single cylinder two-stroke engine Displacement: 1.55 cu.in (25.4 cm3) Bore: 1.34 in (34 mm) Stroke: 1.10 in (28 mm) ...0.11 in dia., 31.5 in * 11.9 lbs (5.4 kg) 12.3 lbs (5.6 kg) 12.6 lbs (5.7 kg) 13.0 lbs (5.9 kg) *Length of cutting blades 26 HS 75, HS 80 Category A = 300 hours, B = 125 hours, C = 50 hours CARB: The Emission Compliance Period used on the Emissions Compliance Label indicates the number of operating hours...
... Compliance Period referred to on the CARB-Air Index Label indicates the terms: Extended = 300 hours, Intermediate = 125 hours, Moderate = 50 hours Engine STIHL single cylinder two-stroke engine Displacement: 1.55 cu.in (25.4 cm3) Bore: 1.34 in (34 mm) Stroke: 1.10 in (28 mm) ...0.11 in dia., 31.5 in * 11.9 lbs (5.4 kg) 12.3 lbs (5.6 kg) 12.6 lbs (5.7 kg) 13.0 lbs (5.9 kg) *Length of cutting blades 26 HS 75, HS 80 Category A = 300 hours, B = 125 hours, C = 50 hours CARB: The Emission Compliance Period used on the Emissions Compliance Label indicates the number of operating hours...
Instruction Manual
Page 28
... symbol (. 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 symbol may be identified by an authorized STIHL dealer using original STIHL replacement parts. English / USA HS 75, HS 80 27 Warranty claims following repairs can...
... symbol (. 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 symbol may be identified by an authorized STIHL dealer using original STIHL replacement parts. English / USA HS 75, HS 80 27 Warranty claims following repairs can...
