Instruction Manual
Page 2
... in Muffler 17 Checking the Spark Plug 17 Lubricating Gearbox 18 Replacing the Starter Rope and Rewind Spring 19 Operating Instructions 21 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 85 English / USA Allow only persons who understand this manual. !Warning! Contact your STIHL hedge trimmer, it is a highspeed cutting tool...
... in Muffler 17 Checking the Spark Plug 17 Lubricating Gearbox 18 Replacing the Starter Rope and Rewind Spring 19 Operating Instructions 21 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 85 English / USA Allow only persons who understand this manual. !Warning! Contact your STIHL hedge trimmer, it is a highspeed cutting tool...
Instruction Manual
Page 3
... not covered in order to avoid damage to continually improve all models and related applications are available as special accessories from time to an illustration. Note or hint on correct procedure in this manual. Engineering improvements STIHL's philosophy is not essential for assistance. Example: Loosen the screw (1) Lever (2) ... The operating and handling instructions are not installed in all of your STIHL dealer for using...
... not covered in order to avoid damage to continually improve all models and related applications are available as special accessories from time to an illustration. Note or hint on correct procedure in this manual. Engineering improvements STIHL's philosophy is not essential for assistance. Example: Loosen the screw (1) Lever (2) ... The operating and handling instructions are not installed in all of your STIHL dealer for using...
Instruction Manual
Page 4
... safety instructions periodically. HS 85 3 Minors should not be allowed in the area where a hedge trimmer is in use of any hedge trimmer can be strenuous. If the cutting tool comes in contact with your hedge trimmer without the owner's manual. Be alert - Working with any hedge trimmer may result in loss of control. Safety Precautions English / USA Because a hedge trimmer is a high-speed, fast-cutting power tool, special...
... safety instructions periodically. HS 85 3 Minors should not be allowed in the area where a hedge trimmer is in use of any hedge trimmer can be strenuous. If the cutting tool comes in contact with your hedge trimmer without the owner's manual. Be alert - Working with any hedge trimmer may result in loss of control. Safety Precautions English / USA Because a hedge trimmer is a high-speed, fast-cutting power tool, special...
Instruction Manual
Page 6
... footing is important in a vehicle, properly secure it to prevent turnover, fuel spillage and damage to reduce the risk of head injuries. Wear sturdy boots with the specific STIHL hedge trimmer models are at idle speed. Grip the front handle and keep the cutter blades behind you. The correct engine idle speed is most important in fact, be extremely dangerous. Although certain unauthorized...
... footing is important in a vehicle, properly secure it to prevent turnover, fuel spillage and damage to reduce the risk of head injuries. Wear sturdy boots with the specific STIHL hedge trimmer models are at idle speed. Grip the front handle and keep the cutter blades behind you. The correct engine idle speed is most important in fact, be extremely dangerous. Although certain unauthorized...
Instruction Manual
Page 7
... grip and safely control your hedge trimmer and check for fuel (see the chapter on "Fuel" of burns or other ignition source, it is running or hot engine. 6 HS 85 Fueling Your STIHL hedge trimmer uses an oil-gasoline mixture for leakage. In order to fuel a running . Inspect for loose parts (nuts, screws, etc.) and for fuel leakage while refueling and during operation. with the engine stopped! Service damaged cutter blades before starting the engine. Apply generously. Take...
... grip and safely control your hedge trimmer and check for fuel (see the chapter on "Fuel" of burns or other ignition source, it is running or hot engine. 6 HS 85 Fueling Your STIHL hedge trimmer uses an oil-gasoline mixture for leakage. In order to fuel a running . Inspect for loose parts (nuts, screws, etc.) and for fuel leakage while refueling and during operation. with the engine stopped! Service damaged cutter blades before starting the engine. Apply generously. Take...
Instruction Manual
Page 8
... fuel spillage and fire, tighten fuel cap by hand with as much force as possible. Do not allow the grip to snap back, but guide the starter rope to engage and move the cutting tool. To reduce the risk of injury from inhalation of poisonous fumes, operate and start your hedge trimmer in such a way that you start " your manual. Hold your hedge trimmer...
... fuel spillage and fire, tighten fuel cap by hand with as much force as possible. Do not allow the grip to snap back, but guide the starter rope to engage and move the cutting tool. To reduce the risk of injury from inhalation of poisonous fumes, operate and start your hedge trimmer in such a way that you start " your manual. Hold your hedge trimmer...
Instruction Manual
Page 9
... to adjust idle speed, see the appropriate section of this manual. 8 HS 85 When working . If the cutter blades become jammed by any nonroad engine repair establishment or individual. For directions to free the blades. !Warning To reduce the risk of injury from loss of control or contact with the running cutting blades, do not use the hedge trimmer above shoulder height or with one hand. Use only STIHL replacement parts...
... to adjust idle speed, see the appropriate section of this manual. 8 HS 85 When working . If the cutter blades become jammed by any nonroad engine repair establishment or individual. For directions to free the blades. !Warning To reduce the risk of injury from loss of control or contact with the running cutting blades, do not use the hedge trimmer above shoulder height or with one hand. Use only STIHL replacement parts...
Instruction Manual
Page 10
... parts of cutting tool at your STIHL service shop only. !Warning Never repair damaged cutting attachments by STIHL. Check condition of the cutting tool to reduce the risk of fire, check fuel filler cap for spraying the cutter blades. Then start and run the hedge trimmer briefly so that the risk of tool changes, check it must be attached.) A loose connection between spark plug terminal and ignition wire connector in hot or dry weather. An improperly maintained muffler...
... parts of cutting tool at your STIHL service shop only. !Warning Never repair damaged cutting attachments by STIHL. Check condition of the cutting tool to reduce the risk of fire, check fuel filler cap for spraying the cutter blades. Then start and run the hedge trimmer briefly so that the risk of tool changes, check it must be attached.) A loose connection between spark plug terminal and ignition wire connector in hot or dry weather. An improperly maintained muffler...
Instruction Manual
Page 11
.... Keep spark plug and wire connection tight and clean. Fit a new spark plug if the electrodes are badly pitted. For any part of the cutting blade, move along and then swing the cutting blade upward again. 367BA010 KN 10 HS 85 Cut both sides of a hedge, swing the cutting blade from the bottom upward in a dry, high or locked location out of reach of this manual. Use lopping shears to the warranty statement near...
.... Keep spark plug and wire connection tight and clean. Fit a new spark plug if the electrodes are badly pitted. For any part of the cutting blade, move along and then swing the cutting blade upward again. 367BA010 KN 10 HS 85 Cut both sides of a hedge, swing the cutting blade from the bottom upward in a dry, high or locked location out of reach of this manual. Use lopping shears to the warranty statement near...
Instruction Manual
Page 12
... when handling gasoline. Fuel English / USA 0 - 10° Horizontal cut: Hold the cutting blade at the pump, first remove the canister from your area is lower, use in STlHL engines. Swing the blade in an arc towards the outside of the hedge so that you swing the hedge trimmer horizontally. This, in or on unleaded gasoline and the STIHL twostroke engine oil at a mix ratio of...
... when handling gasoline. Fuel English / USA 0 - 10° Horizontal cut: Hold the cutting blade at the pump, first remove the canister from your area is lower, use in STlHL engines. Swing the blade in an arc towards the outside of the hedge so that you swing the hedge trimmer horizontally. This, in or on unleaded gasoline and the STIHL twostroke engine oil at a mix ratio of...
Instruction Manual
Page 14
... on the control handle. 366BA011 KN : Press fuel pump bulb (5) at least five times - HS 85 13 Make sure that the cutting blades are not touching the ground or any other obstacles. : Make sure you have a firm footing. : Place your hedge trimmer on the ground with fuel. even if bulb is the starting throttle position. 367BA006 KN 4 : Set the choke lever (4): For cold start to g For warm start to START at the...
... on the control handle. 366BA011 KN : Press fuel pump bulb (5) at least five times - HS 85 13 Make sure that the cutting blades are not touching the ground or any other obstacles. : Make sure you have a firm footing. : Place your hedge trimmer on the ground with fuel. even if bulb is the starting throttle position. 367BA006 KN 4 : Set the choke lever (4): For cold start to g For warm start to START at the...
Instruction Manual
Page 15
.... : Move the slide control to # : Set the choke lever to e - English / USA : Pull the starter grip slowly with your right hand until dry and then refueled To stop the engine: 7 5 : Move slide control to O 367BA020 KN 366BA011 KN : Pull off the spark plug boot (7). : Unscrew and dry off the spark plug. : Press the fuel pump bulb (5) at least five times - even if bulb is cold. : Now start the engine. 14 HS 85
.... : Move the slide control to # : Set the choke lever to e - English / USA : Pull the starter grip slowly with your right hand until dry and then refueled To stop the engine: 7 5 : Move slide control to O 367BA020 KN 366BA011 KN : Pull off the spark plug boot (7). : Unscrew and dry off the spark plug. : Press the fuel pump bulb (5) at least five times - even if bulb is cold. : Now start the engine. 14 HS 85
Instruction Manual
Page 17
.... Cutting blades run when engine is set at idle speed and turn the screw about another one half turn in the same direction. 16 HS 85 Then open ) : Turn idle speed screw (LA) slowly counterclockwise until the cutting blades start running at the factory to provide an optimum fuel-air mixture under most operating conditions. Idling and part-load emissions are minimized by limiting the idle mixture. : Check the cutting blades and clean if necessary (they must be bent or warped). : Check the air filter...
.... Cutting blades run when engine is set at idle speed and turn the screw about another one half turn in the same direction. 16 HS 85 Then open ) : Turn idle speed screw (LA) slowly counterclockwise until the cutting blades start running at the factory to provide an optimum fuel-air mixture under most operating conditions. Idling and part-load emissions are minimized by limiting the idle mixture. : Check the cutting blades and clean if necessary (they must be bent or warped). : Check the air filter...
Instruction Manual
Page 19
... HS 85 operating at idling speed, first check the spark plug. : Remove spark plug - Use STIHL gear lubricant for hedge trimmers (see "Specifications") to lubricate the blade drive gear about 3/4 oz (20 g) grease into the filler hole. : Roll up the end of the proper size. (Note: If terminal has detachable SAE adapter nut, it must be attached.) A loose connection between spark plug boot and ignition wire connector in fuel mix. : Dirty air filter. : Unfavorable running conditions, e.g. English / USA If engine is down on power...
... HS 85 operating at idling speed, first check the spark plug. : Remove spark plug - Use STIHL gear lubricant for hedge trimmers (see "Specifications") to lubricate the blade drive gear about 3/4 oz (20 g) grease into the filler hole. : Roll up the end of the proper size. (Note: If terminal has detachable SAE adapter nut, it must be attached.) A loose connection between spark plug boot and ignition wire connector in fuel mix. : Dirty air filter. : Unfavorable running conditions, e.g. English / USA If engine is down on power...
Instruction Manual
Page 23
... give unsatisfactory cutting results. 22 HS 85 out of the reach of about 3 months or longer : Drain and clean the fuel tank in a dry, high or locked location - 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...
... give unsatisfactory cutting results. 22 HS 85 out of the reach of about 3 months or longer : Drain and clean the fuel tank in a dry, high or locked location - 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...
Instruction Manual
Page 24
... apply to normal operating conditions only. 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 85 before starting work after...
... apply to normal operating conditions only. 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 85 before starting work after...
Instruction Manual
Page 26
... engine. 13. Handle bar for the left hand at or toward the rear of the pull starter, which is not in use. 8. Starting Lock. Blade Scabbard. Slide Control. Fuel Tank. Muffler. Throttle Trigger Interlock. Connects the spark plug with Hand Guard. For tuning carburetor. 12. Starter Grip. Throttle Trigger. English / USA Definitions 1. The support handle for the left hand, located at front of the engine. 17. Fuel Filler Cap. Polymer housing which covers the air filter. 11. Shroud. HS 85 25 Spark Plug Boot. Control Handle. Choke Lever...
... engine. 13. Handle bar for the left hand at or toward the rear of the pull starter, which is not in use. 8. Starting Lock. Blade Scabbard. Slide Control. Fuel Tank. Muffler. Throttle Trigger Interlock. Connects the spark plug with Hand Guard. For tuning carburetor. 12. Starter Grip. Throttle Trigger. English / USA Definitions 1. The support handle for the left hand, located at front of the engine. 17. Fuel Filler Cap. Polymer housing which covers the air filter. 11. Shroud. HS 85 25 Spark Plug Boot. Control Handle. Choke Lever...
Instruction Manual
Page 28
... the STIHL part number, the STIHl logo and the STlHL parts symbol (. Original STlHL parts can be identified by an authorized STIHL dealer using original STIHL replacement parts. English / USA HS 85 27 The user of this unit should carry out only the maintenance operations described in this manual. Other repair work may appear alone on these and other special accessories. Special Accessories Maintenance and Repairs STIHL resin solvent for cleaning cutting blades STIHL gear lubricant...
... the STIHL part number, the STIHl logo and the STlHL parts symbol (. Original STlHL parts can be identified by an authorized STIHL dealer using original STIHL replacement parts. English / USA HS 85 27 The user of this unit should carry out only the maintenance operations described in this manual. Other repair work may appear alone on these and other special accessories. Special Accessories Maintenance and Repairs STIHL resin solvent for cleaning cutting blades STIHL gear lubricant...
Instruction Manual
Page 29
... free of two years. 28 HS 85 Your emission control system includes parts such as a problem exists. You are responsible for the performance of sale, to a STIHL service center as soon as the carburetor and the ignition system. EPA standards for small non road engines. Where a warrantable condition exists, STIHL Incorporated will repair your small off-road equipment engine at the time of the required maintenance listed...
... free of two years. 28 HS 85 Your emission control system includes parts such as a problem exists. You are responsible for the performance of sale, to a STIHL service center as soon as the carburetor and the ignition system. EPA standards for small non road engines. Where a warrantable condition exists, STIHL Incorporated will repair your small off-road equipment engine at the time of the required maintenance listed...
Instruction Manual
Page 30
... which leads to the owner. Deviations from this manual are : 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 the effect of "repair or replace as non-defective, STIHL Incorporated will begin on the application of charge to STIHL. HS 85 29 If any warranty maintenance or repairs on your engine is liable for...
... which leads to the owner. Deviations from this manual are : 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 the effect of "repair or replace as non-defective, STIHL Incorporated will begin on the application of charge to STIHL. HS 85 29 If any warranty maintenance or repairs on your engine is liable for...