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STIHL HS 46, 56
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Instruction Manual
Manual de instrucciones
WARNING
Read and follow all safety
precautions in Instruction Manual –
improper use can cause serious or
fatal injury.
ADVERTENCIA
Lea y siga todas las precauciones
de seguridad dadas en el manual
de instrucciones – el uso incorrecto
puede causar lesiones graves o
mortales.
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Table of Contents
Related Manuals for Stihl HS 56C
Summarization of Contents
Guide to Using this Manual
Pictograms
Meanings of attached or embossed symbols on the machine.
Symbols in Text
Explains text markers like bullet points for steps.
Safety Precautions and Working Techniques
General Safety Warnings
Highlights hazards of high-speed cutting tools and need for precautions.
Operator Condition
Emphasizes physical and mental health for safe operation.
Proper Clothing
Details necessary protective apparel for safe operation.
Tool & Usage Overview
Refers to Main Parts chapter and general usage advice.
THE OPERATOR
Physical Condition
Discusses requirements for operator's physical and mental health.
Vibration Hazards
Warns about vibration-induced diseases like whitefinger and prevention.
Pacemaker Interference
Warns about electromagnetic field interference with pacemakers.
Proper Clothing
Clothing and Footwear
Details general clothing requirements and footwear recommendations.
THE POWER TOOL
Modifications and Damage Check
Warnings against modifications and checking for damage after heavy loads.
THE USE OF THE POWER TOOL
Transporting the Power Tool
Provides safety instructions for carrying the tool during transport.
Fuel
Fuel Type and Quality
Specifies mix ratio, octane rating, ethanol content, and additives for gasoline.
Fueling Instructions
Fueling Precautions and Procedure
General warnings about flammable gasoline and safe refueling steps.
Toolless Cap Operation
Step-by-step instructions for opening and closing the fuel filler cap.
Misaligned/Damaged Cap
Troubleshooting for issues with the fuel cap alignment or damage.
Before Starting
Pre-Start Checks
Inspection of blades, filters, and spark screens before operation.
Master Control Lever & Blade Safety
Explains lever functions and warns about blade contact.
Starting Procedure Overview
General steps for starting the engine outdoors safely.
Left-hand Use
Handling Instructions
Guidance on how to hold the unit for left-hand operation.
Right-hand Use
Handling Instructions
Guidance on how to hold the unit for right-hand operation.
During Operation
Holding and Control
Emphasizes firmly holding the unit with both hands.
Operational Warnings
Warnings against one-hand use, overreaching, and maintaining footing.
Working Conditions
Operating Environment
Recommendations for ventilation and visibility during operation.
Environmental Hazards
Risks from exhaust fumes, chemicals, and dust inhalation.
Operating Instructions
Starting and Blade Operation
Warnings on throttle lock, flywheel effect, and blocked blades.
Pre-Work Area Check
Examine hedge area for foreign objects that could damage blades.
Cutting Techniques
Advice on cutting near ground/fences and avoiding obstructions.
Safety Warnings
Electric Shock Hazard
Warning that the tool is not insulated and to avoid electric wires.
Heat Hazards
Gearbox and muffler/engine parts become hot during operation.
Fire and Burn Risk
Keep muffler area clean and away from combustible substances.
Muffler Modification
Warning against modifying the muffler; recommend dealer service.
After Finishing Work
Cleaning and Preservation
Instructions for cleaning the machine and spraying blades with solvent.
Maintenance and Repair
Emission Control System
Information on maintenance of emission control devices.
Use of Genuine Parts
Emphasizes using only identical STIHL replacement parts.
Performing Maintenance Safely
Stop engine, follow manual, and perform only described work.
Spark Plug and Ignition System
Spark Plug/Ignition Lead Check
Ensure spark plug and lead are clean and properly connected.
Ignition System Testing
Do not test ignition system with removed spark plug boot.
Muffler and Spark Arrester
Muffler Condition/Spark Arrester
Do not operate with damaged muffler or missing/clogged spark arrester.
California Emissions Regulations
Spark Arrester Responsibility
Owner's responsibility for maintaining spark arrester per regulations.
Cutting Attachment Maintenance
Repairing Attachments/Blade Sharpness
Do not weld/modify attachments; keep blades sharp.
General Maintenance
Tightening and Cleaning
Tighten fasteners after use and follow cleaning methods.
Using the Unit
Cutting Season and Sequence
Observe regulations and follow cutting steps.
Disposal of Cuttings
Cuttings can be composted, not thrown in garbage.
Working Technique
Vertical Cut
Technique for cutting vertically in an arc.
Horizontal Cut
Technique for cutting horizontally at a slight angle.
Fuel
Fuel Type and Quality
Specifies mix ratio, octane rating, ethanol content, and additives for gasoline.
Idle Speed Adjustment
Idle Speed Adjustment Importance
Importance of correct idle speed for safety and tool function.
Fuel Mix Ratios
Mixing Fuel Safely
Instructions on how to mix fuel and oil, and storage recommendations.
Fueling
Fueling Preparations and Warnings
Steps for preparing to fuel and general warnings about risks.
Fuel Cap Operation
Opening the Fuel Cap
Step-by-step instructions for opening the fuel filler cap.
Closing the Fuel Cap
Step-by-step instructions for closing the fuel filler cap.
Refueling
Refueling Precautions
Advice to avoid spilling fuel and overfilling the tank.
Filler Cap Issues
Misaligned Filler Cap Troubleshooting
Guidance on how to check and correct a misaligned filler cap.
Starting / Stopping the Engine
Master Control Lever Functions
Explains the STOP, Normal Run (I), and Starting Throttle ()( positions.
Starting the Engine
Setting the Master Control Lever
How to move the Master Control lever for different start modes.
Warm and Cold Start Procedures
Detailed procedures for starting a warm or cold engine.
Starting Unit Placement
Instructions on placing the unit on the ground before starting.
Starting Procedure Details
Safe Footing and Grip
Ensuring secure footing and a firm grip on the unit.
Starter Grip Operation
Guidance on how to pull and guide the starter grip correctly.
Engine Stalling and Not Starting
Troubleshooting steps for engine stalling or failure to start.
Fuel Tank Dry Procedure
Steps to follow after refueling if the fuel tank was run dry.
Operating Instructions
Break-in Period
Recommendations for running a new machine for the first few tank fillings.
During Operation
Advice on running the engine at idle after full throttle use.
After Finishing Work
Instructions for storing the machine for short periods.
Cleaning the Air Filter
Air Filter Cleaning Procedure
Steps to remove, clean, and replace the air filter element.
Engine Management
Exhaust Emissions Control
How exhaust emissions are controlled by engine design.
Adjusting the Carburetor
General Information and Standard Setting
Carburetor setting for optimum fuel-air mixture and initial steps.
Adjusting Idle Speed
How to adjust idle speed for correct operation.
Troubleshooting Idle Issues
Addresses engine stops, erratic idling, and cutting blades moving at idle.
High Altitude Tuning
Adjusting carburetor settings for operation at high altitudes.
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