Stihl Trimmer FS 36 Parts Manual

The Stihl FS 36 is a lightweight, straight-shaft gasoline-powered trimmer designed for residential use. This parts manual provides detailed diagrams, part numbers, and ordering information for the fuel system, cutting head, drive shaft, engine components, and controls to assist with maintenance, repair, and part replacement. Below are key sections for identification, engine parts, cutting attachments, fuel system, and ordering.

Machine Identification

Locate the model number (FS 36) and serial number on the engine housing or crankcase. Required for ordering correct parts.

Engine Assembly & Components

Major engine parts include cylinder, piston, crankshaft, ignition system, and muffler.

1. Cylinder & Piston: Cylinder (part #xxxx), piston assembly (rings, wrist pin).
2. Crankshaft: Main bearing, seals, connecting rod.
3. Ignition: Spark plug (BPMR7A), ignition coil, stop switch.
4. Muffler: Spark arrestor screen, exhaust gasket.
5. Recoil Starter: Starter pulley, rope, spring, handle.

WARNING! Disconnect spark plug before servicing engine. Use genuine Stihl parts.

Cutting Attachment Parts

FS 36 uses a bump-feed trimmer head or optional circular blade.

1. Trimmer Head: Bump head (AutoCut C 2-2), spool, spring, eyelet.
2. Cutting Blades: Optional circular saw blade (part #xxxx), blade bolt, guard.
3. Drive Shaft Coupling: Connects engine to gearhead.
4. Gearhead: Bevel gears, grease, housing.

CAUTION! Ensure cutting attachment is securely fastened. Replace worn line or blades.

Fuel System & Carburetor

• Fuel Tank: Polyethylene tank, cap, vent.
• Fuel Lines: Supply and return lines, filter.
• Carburetor: Walbro or Zama carburetor, diaphragm, gaskets, adjustment screws (L, H, idle).
• Air Filter: Foam element, cover, pre-filter.
• Fuel Filter: In-tank filter (replace annually).

Drive Shaft & Gearhead

Drive shaft transmits power from engine to cutting attachment.

Drive Shaft: Flexible steel shaft, upper and lower couplings. Gearhead: Bevel gear set, grease, output shaft, seal. Bearings: Support bearings in shaft tube.

Inspect shaft for damage; lubricate gearhead with Stihl grease annually.

Handle & Control Parts

Loop handle with throttle trigger, lock-off, and harness attachment.

1. Turn off engine before adjusting handle.
2. Handle clamp, bolts, vibration dampeners.
3. Throttle cable, trigger, lock-off lever.
4. Harness eyelets, support strap.

Tip: Ensure throttle cable moves freely; adjust if slack.

Safety Components

Includes deflector, guard, and safety labels.

1. Deflector: Trimmer guard (part #xxxx), mounting hardware.
2. Safety Labels: Warning decals (replace if illegible).
3. Vibration Isolation: Handle isolators, rubber mounts.
4. Spark Arrestor: In muffler (clean regularly).

WARNING! Always use deflector. Replace damaged safety components immediately.

Fasteners & Hardware

Standard metric screws, nuts, washers, and clips.

CAUTION! Use correct torque. Replace stripped or corroded fasteners.

Part Number Reference

Key part numbers (example format; confirm with dealer).

Exploded Diagrams

Refer to Stihl FS 36 exploded diagrams for assembly relationships. Diagrams show engine group, fuel system, drive assembly, cutting attachment, and handle group with callouts for each part number.

Note: Diagrams are essential for correct reassembly.

Ordering & Support

Support: 1-800-467-8445; www.stihlusa.com