Stihl Series 4180 Powerhead Machine Service & Repair Manual

The Stihl Series 4180 Powerhead Machine service & repair manual is the complete 51-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:

• Series 4180 Powerhead
• Contents
• 1 Introduction
• 2 Safety Precautions
• 3 Specifications
• 3.1 Engine
• 3.2 Spark Plug
• 3.3 Carburetor
• 3.4 Tightening Torques
• 4 Troubleshooting
• 4.1 Clutch
• 4.2 Rewind Starter
• 4.3 Ignition System
• 4.4 Carburetor
• 4.5 Engine
• 5 Rewind Starter / Shroud
• 5.1 General
• 5.2 Removing and Installing
• 5.3 Rope Rotor
• 5.4 Starter Rope
• 5.5 Pawl
• 5.6 Replacing the Rewind Spring
• 5.7 Removing the Shroud
• 6 Fuel System
• 6.1 Air Filter
• 6.2 Carburetor
• 6.3 Servicing the Carburetor
• 6.4 Tank Vent
• 6.5 Pickup Body
• 6.6 Fuel Hoses
• 6.7 Fuel Tank
• 7 Engine
• 7.1 Compression Pressure
• 7.2 Checking / Adjusting Valve Clearances
• 7.3 Rocker Arms / Pushrods
• 7.4 Cam Followers
• 7.5 Cam Gear
• 7.6 Muffler / Spark Arresting Screen
• 7.7 Clutch
• 7.8 Flywheel
• 7.9 Crankshaft
• 7.10 Valves / Valve Springs
• 7.11 Upper Half of Crankcase with Cylinder
• 8 Ignition System
• 8.1 Spark Plug Boot
• 8.2 Ignition Module
• 9 Throttle Control
• 9.1 Throttle Trigger, Interlock Lever
• 9.2 Tensioner
• 9.3 Adjusting Throttle Cable
• 9.4 Slide Control
• 10 AV System
• 11 Special Accessories
• 12 Special Servicing Tools

With OEM-level detail throughout, it is everything needed to service, diagnose and repair the machine.