Stihl Kombi Manual

The Stihl KombiSystem is a versatile power tool system featuring a single power unit (engine or motor) that connects to multiple attachments for various gardening and landscaping tasks. This manual covers the KM 56 RC-E, KM 94 R, KM 111 R, KM 131 R, and similar models, including safety instructions, assembly, operation, maintenance, and storage procedures for attachments like grass trimmers, brush cutters, hedge trimmers, pole pruners, and blowers. Always read and follow all safety warnings before use.

Safety Instructions

Always wear appropriate personal protective equipment (PPE): safety glasses, hearing protection, gloves, sturdy boots, and long pants. Keep bystanders and pets at a safe distance. Operate only in well-ventilated areas. Never operate the tool if tired, ill, or under the influence of drugs/alcohol. Inspect the tool before each use for damage or loose parts.

Hazard	Precaution
Kickback	Hold tool firmly with both hands; maintain secure footing.
Flying debris	Clear work area of stones, nails, wire; wear face protection.
Fuel handling	Refuel outdoors only, with engine off and cool. Use approved fuel container.
Carbon monoxide	Never operate in enclosed or partially enclosed spaces.
Hot surfaces	Avoid contact with muffler and cylinder during/after operation.
Electrical hazards (electric models)	Use only with GFCI-protected outlet; keep cord away from cutting attachment.

System Overview & Components

Key components: Powerhead (engine/motor), Drive Shaft, Handle Assembly, Attachment Interface (Kombi coupling), and various attachments.

1. Powerhead: Provides power; features include throttle trigger, stop switch, choke, primer bulb (gas models), and fuel tank.
2. Drive Shaft: Transfers power from powerhead to attachment gearbox.
3. Handle: D-loop or bicycle handle with controls; adjustable for operator comfort.
4. Kombi Coupling: Quick-connect system for attaching tools securely.
5. Attachments: Includes trimmer head, brush cutter blade, hedge trimmer, pole pruner, blower, and more.

WARNING! Use only genuine Stihl KombiSystem attachments designed for your specific powerhead model.

Assembly & Installation

Assemble on a clean, flat surface. Ensure all parts are present and undamaged.

1. Attach handle: Slide onto shaft, align, and tighten clamping screws securely.
2. Install drive shaft: Insert into shaft tube, ensuring it engages with powerhead coupling.
3. Connect attachment: Align Kombi coupling pins, push attachment onto powerhead until it clicks, then rotate locking collar to secure.
4. Install cutting tool: For trimmer, load nylon line per instructions. For brush cutter, mount blade with correct washer and nut, tightening opposite rotation direction.
5. Adjust harness: Fit shoulder harness, adjust for balance and comfort before starting.

CAUTION! Ensure all fasteners are tight. Do not force connections.

Starting & Stopping the Engine

For Gasoline Models:

1. Fuel mix: Use 50:1 high-quality 2-cycle engine oil with 89 octane minimum gasoline. Shake well.
2. Check fuel level: Refill if necessary using funnel.
3. Set switch to "I" (On).
4. Set choke to full position (cold start).
5. Press primer bulb 5-10 times until fuel is visible.
6. Place on firm ground, hold securely. Pull starter cord briskly until engine fires.
7. Move choke to half position, pull again to start. Warm up for 30 seconds.
8. To stop: Release throttle, set stop switch to "0".

For Electric Models: Plug into GFCI outlet, ensure switch is off before connecting, then press trigger.

Operating Instructions

Always operate with a firm grip and balanced stance. Keep cutting attachment below waist level. Use a slow, sweeping motion. Do not overreach.

• Trimming: Use tip of nylon line for cutting. Avoid contact with hard surfaces to reduce line wear.
• Brush Cutting: Use blade for thick weeds and saplings. Swing tool like a scythe from right to left.
• Hedge Trimming: Hold trimmer with blade at slight angle; use smooth, even strokes.
• Pruning: Position pole pruner to cut branches at shoulder height or below whenever possible.
• Blowing: Direct nozzle to move debris; avoid pointing at people or animals.

Tip: Take frequent breaks to avoid fatigue.

Attachment-Specific Guides

Attachment	Use	Key Notes
PolyCut Head (Trimmer)	Grass, weeds	Tap head on ground to advance line; use correct line diameter.
Circular Brush Knife	Heavy weeds, brush	Inspect for cracks/damage before use; ensure guard is installed.
Hedge Trimmer	Shaping hedges, shrubs	Keep both hands on handles; cut from bottom to top.
Pole Pruner	Overhead branches	Do not operate near power lines; cut branches in stages if large.
Blower	Clearing leaves/debris	Adjust nozzle for concentrated or wide airflow.

Maintenance & Care

Perform maintenance with engine off, spark plug disconnected (gas), or unplugged (electric).

1. Daily: Clean exterior, check for loose parts, inspect cutting attachment for damage.
2. Air Filter (gas): Clean every 10 hours; replace if damaged. Do not run engine without filter.
3. Spark Plug: Check gap every 50 hours; replace if electrodes are worn.
4. Fuel Filter: Replace annually or if clogged.
5. Gearbox Grease: Lubricate attachment gearhead every 25 hours of use.
6. Shaft Lubrication: Apply grease to drive shaft splines periodically.
7. Cutting Tool Sharpening: Sharpen blades with file; replace nylon line as needed.

WARNING! Use only Stihl-approved replacement parts and lubricants.

Storage

Short-term (up to 30 days): Clean tool thoroughly. For gas models, empty fuel tank or add fuel stabilizer. Store in dry, locked area out of reach of children.

Long-term (over 30 days):

1. Drain fuel tank completely and run engine until it stops to empty carburetor.
2. Remove spark plug, add a teaspoon of engine oil into cylinder, pull starter slowly 2-3 times, reinstall plug.
3. Remove cutting attachment; clean and oil metal parts to prevent rust.
4. Store in original box or cover in a cool, dry place.

Troubleshooting

Problem	Possible Cause	Solution
Engine won't start	No fuel, flooded, bad spark plug, clogged air filter	Check fuel; wait if flooded; inspect/replace plug and filter.
Engine runs poorly/stalls	Dirty fuel filter, old fuel, carburetor adjustment	Replace filter; use fresh fuel; consult dealer for carb adjustment.
Attachment doesn't turn	Drive shaft disconnected, gearbox damaged	Check coupling; inspect gearbox for wear or debris.
Excessive vibration	Bent shaft, unbalanced blade, loose parts	Inspect shaft and blade; tighten all fasteners.
Line won't advance	Empty spool, tangled line, worn head	Reload line correctly; clean head; replace if worn.

Note: For complex repairs, contact an authorized Stihl service dealer.

Specifications

• Powerhead Models: KM 56 RC-E (electric), KM 94 R, KM 111 R, KM 131 R (gas).
• Engine Displacement (gas): 27.2 cc (KM 94 R) to 40.2 cc (KM 131 R).
• Power Output: Varies by model; KM 131 R: 1.8 kW.
• Fuel Capacity: Approx. 0.5 liters (gas models).
• Sound Pressure Level: Typically 95-105 dB(A); wear hearing protection.
• Vibration Level: Complies with relevant standards; use anti-vibration gloves.
• Weight (powerhead only): 5.1 kg to 6.7 kg depending on model.
• Warranty: Limited commercial warranty; terms vary by region.

Warranty & Support

Stihl products are backed by a limited warranty against defects in materials and workmanship. Warranty details are provided with your product and vary by country. Proof of purchase from an authorized Stihl dealer is required.

For Technical Support, Parts, or Service:

• Contact your local authorized Stihl dealer.
• Visit the official Stihl website: www.stihl.com
• Refer to the specific warranty booklet included with your product.

Safety Recall Information: Register your product online to receive important safety updates.