Stihl HS 86 Hedge Trimmer Workshop Manual


Stihl HS 86 Hedge Trimmer Workshop Manual for the service of Stihl HS86 Trimmer. View page images online or download PDF with clear easy to understand images, diagrams and information. Print or save to any device.
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Stihl HS 86 Hedge Trimmer Workshop Manual

Stihl HS 86 Workshop Manual for the Repair and service of the Stihl HS 86 Hedge Trimmer. The PDF workshop service manual has diagrams and acurate repair and servicing information to help you to troubleshoot, repair and fix the Stihl HS 86 (HS86). View pages online or download a complete PDF manual that you can easily save, print, transfer between devices or view.

Stihl HS 86 Workshop Manual Contents



Power unit, Fuel system, Ignition system, Tightening torques.


Cutting attachment, Rewind starter, Ignition system, Carburetor, Engine.

Cutting attachment

Trimmer versions, Removal and installation, cutter versions, Disassembly of cutting attachment, adjustment set for blade clearance.


Gear wheel, trimmer versions, Gear wheel, cutter versions, Drive pinion, Bearing, Gear housing, Grease gearbox.


Removal and installation, Clutch drum- trimmer versions, Clutch drum0 cutter versions.


Muffler, spark arresting screen, Leakage testing, Preparations, Vacuum test, Pressure test, Oil seals, Complete engine Removal and installation, Engine housing Crankshaft, Removal, Installation, Ball bearing- crankcase, Piston, Removal, Installation, Piston rings.

Ignition system

Ignition module, Removal and installation, Ignition timing, Testing the ignition module, Spark plug terminal / ignition lead, Flywheel, Short circuit wire, Testing, Removal and installation engine side, Removal and installation- handle side, Troubleshooting chart, ignition system.

Rewind starter

General, Pawls, Rope rotor, Starter rope / grip, Tensioning the rewind spring, Replacing the rewind spring, Starter rope guide bushing.

Anti-vibration system, repair

Rear anti-vibration buffer- cutter versions, Front anti-vibration buffer- cutter versions, Springs, Handle frame, Handlebar, Exhaust pipe.

Operating levers

Throttle trigger / throttle trigger interlock, Twist lock, Starting throttle lock, Handle mouldings, Slide control.

Fuel system

Air filter, Filter housing, Carburetor, Removal and installation, Choke lever, Leakage testing, Servicing the carburetor, Metering diaphragm / hand pump, Inlet needle, Fixed jet, Pump diaphragm, Adjusting screws, Carburetor adjustment, Basic setting, Standard setting, Spacer flange, removal and installation, Tank vent, Check, Removal and installation, Fuel intake, Pick-up body, Fuel hoses, Fuel filler cap, Fuel tank, removal and installation.

Special tools

Servicing accessories

Carburetor adjustment

Basic setting- The basic setting is only required if the high speed screw H or low speed screw L has to be replaced and when cleaning or adjusting the basic setting of the carburetor.

See the service workshop manual, carburetor manual, parts list, operator manual and technical supplements PDF downloads, also the repair and service articles available on this website for more information on how to service, repair and find parts for the saw.

Stihl HS 86 Specifications

Technical specifications

DISPLACEMENT: 22.7 cc (1.4 cu. in.)
ENGINE POWER: 0.7 kW (0.94 bhp)
WEIGHT With 30″ blade: 5.2 kg (11.5 lbs.)
With 40″ blade: 5.5 kg (12.1 lbs.)
BLADE LENGTH: 30″ or 40″
FUEL CAPACITY: 460 cc (15.6 oz.)

Stihl Engine- see the manual for complete specs.

Stihl HS 86 Hedge Trimmer Workshop Manual PDF

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