Stihl hs81 hs86 Machine Service & Repair Manual

The Stihl hs81 hs86 Machine service & repair manual is the complete 110-page factory workshop manual for this machine — with full step-by-step procedures, specifications, torque values, wiring and hydraulic diagrams and fault diagnosis.

What’s inside this manual:

• Contents
• 1. Foreword
• 2. Safety
• 3. Specifications
• 3.1 Power unit
• 3.2 Fuel system
• 3.3 Ignition system
• 3.4 Tightening torques
• 4. Troubleshooting
• 4.1 Clutch
• 4.2 Cutting attachment
• 4.3 Rewind starter
• 4.4 Ignition system
• 4.5 Carburetor
• 4.6 Engine
• 5. Cutting attachment
• 5.1 Removal and installation, trimmer versions
• 5.2 Removal and installation, cutter versions
• 5.3 Disassembly of cutting attachment HS 81
• 5.4 Disassembly of cutting attachment HS 86
• 5.5 Disassembly HS 81 T/ HS 86 T, adjustment set for blade clearance
• 6. Gear
• 6.1 Gear wheel, trimmer versions
• 6.2 Gear wheel, cutter versions
• 6.3 Drive pinion
• 6.4 Gear housing
• 6.5 Grease gearbox
• 7. Clutch
• 7.1 Removal and installation
• 7.2 Clutch drum, trimmer versions
• 7.3 Clutch drum cutter versions
• 8. Engine
• 8.1 Muffler, spark arresting screen
• 8.2 Leakage testing
• 8.3 Oil seals
• 8.4 Complete engine
• 8.5 Crankshaft
• 8.6 Piston
• 8.7 Piston rings
• 9. Ignition system
• 9.1 Ignition module
• 9.2 Ignition timing
• 9.3 Testing the ignition module
• 9.4 Spark plug terminal / ignition lead
• 9.5 Flywheel
• 9.6 Short circuit wire
• 9.7 Troubleshooting chart, ignition system
• 10. Rewind starter
• 10.1 General
• 10.2 Pawls
• 10.3 Rope rotor
• 10.4 Starter rope / grip
• 10.5 Tensioning the rewind spring
• 10.6 Replacing the rewind spring
• 10.7 Starter rope guide bushing

Built for real workshop use — the complete reference for keeping this machine running season after season.