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CHAIN SAW

G4501
G5201
G5201P
Original Language
01-G4501・5201・5201P_GB_306_四.indd 1
OWNER'S MANUAL
G4501/G5201/G5201P
115 59 72-38 (306)
G
B
GB-1
13.6.20 11:29:33 AM

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Summarization of Contents

Warning Labels on the Machine
Read Operator's Manual
Emphasizes reading the owner's manual before operating the machine for safety.
Wear Protective Gear
Instructs users to wear head, eye, and ear protection for safety.
Use Two Hands
Advises using the chain saw with two hands for better control and safety.
Kickback Danger Warning
Warns users about the danger of kickback when operating the chain saw.
General Warning/Attention
A general symbol indicating a warning or attention is required.
Avoid Hot Surfaces
Cautionary label indicating not to touch hot surfaces on the machine.
Use Appropriate Protections
Recommends using protections for feet, legs, hands, and arms.
For Trained Operators Only
Specifies that the saw is intended for trained tree service operators.
For Safe Operation
Safe Operating Conditions
Prohibits operation when fatigued, ill, under medication, or influenced by alcohol/drugs.
Personal Protective Equipment
Mandates safety footwear, snug clothing, and eye, hearing, head protection.
Chain and Saw Maintenance
Stresses keeping the chain sharp and the saw, including AV system, well-maintained.
Fuel Handling Precautions
Instructions on safe fueling, including wiping spills and moving away from fueling point.
Eliminate Ignition Sources
Advise to eliminate sparks/flames in fueling and storage areas.
No Smoking While Fueling
Prohibits smoking while handling fuel or operating the chain saw.
Bystander Safety
Keep bystanders and animals at least 10m away during operation.
Prepare Work Area and Footing
Ensure clear work area, secure footing, and planned retreat path before cutting.
Grip and Hand Placement
Hold the saw firmly with both hands, encircling handles with thumbs.
Body Position Relative to Chain
Keep all body parts away from the saw chain when the engine is running.
Pre-Start Chain Check
Ensure the saw chain is not contacting anything before starting the engine.
Transporting the Saw
Carry saw with engine stopped, chain/bar to the rear, muffler away from body.
Pre-Operation Inspection
Inspect for worn/damaged parts; ensure chain stops when throttle is released.
Professional Servicing
Advise professional service for maintenance not covered in the manual.
Shutting Off Engine
Always shut off the engine before setting the saw down.
Cutting Small Brush
Use caution with small brush; it can catch the chain and cause imbalance.
Cutting Tensioned Limbs
Be alert for spring-back when cutting tensioned limbs.
Adverse Weather Conditions
Avoid cutting in high wind, poor visibility, or extreme temperatures.
Handle Grip Dryness
Keep handles dry, clean, and free of oil or fuel mixture.
Explanation of Symbols on the Machine
Fuel Port
Indicates the port for refueling with 'MIX GASOLINE'.
Chain Oil Port
Indicates the port for filling with chain oil.
Engine Start/Stop Switch
Shows switch positions for starting (backward arrow) and stopping (forward arrow) the engine.
Choke Knob Operation
Explains that the choke closes when the choke knob is pulled.
Chain Oil Adjuster
Indicates how to adjust chain oil flow (MIN for decrease, MAX for increase).
Carburetor Adjustment Screws
Identifies 'H' (High-speed) and 'L' (Low-speed) adjustment screws.
Idle Adjusting Screw
Identifies the 'T' screw for adjusting the idle speed.
Chain Brake Indicator
Shows directions for chain brake release (white arrow) and activation (black arrow).
Installing Guide Bar and Saw Chain
Safety Warning for Chain
Warns that saw chains have sharp edges and to use protective gloves.
Chain Brake Engagement Check
Instructs to pull the guard to check if the chain brake is engaged.
Chain Cover Removal
Procedure to loosen nuts and remove the chain cover.
Spike Installation
Instruction to install the attached spike to the power unit.
Guide Bar and Chain Mounting
Steps for fitting the chain around the sprocket and mounting the guide bar.
Chain Tension Adjustment
Guide on adjusting chain tension by turning the tensioner screw.
Securing Nuts and Final Check
Tighten nuts securely and check chain rotation and tension.
Chain Tension Note
New chains expand; readjust tension frequently to prevent derailment or wear.
Fuel and Chain Oil
Fuel Safety Precautions
Emphasizes dangers of gasoline flammability and safe fueling practices.
Engine Lubrication Requirements
Specifies use of Zenoah oil or equivalent JASO FD/ISO-L-EGD grade oil.
Recommended Mixing Ratio
Details mixing ratios for gasoline and oil based on oil type.
Fuel Handling and Storage
Guidelines on mixing fuel, fueling the unit, and avoiding specific fuel types.
Chain Oil Specifications
Recommends SAE #10W-30 oil for year-round use or specific seasonal weights.
Operating the Engine
Pre-Start Safety Checks
Ensure all parts are properly installed before starting a chainsaw.
Starting the Engine Procedure
Step-by-step guide for starting the engine, including choke and decompression valve use.
Saw Chain Rotation Warning
Warns that the saw chain rotates upon engine start.
Checking Oil Supply
Procedure to check chain oil scattering while running the engine.
Chain Oil Flow Adjustment
Details on adjusting the chain oil flow rate.
Carburetor Adjustment
Guide on adjusting carburetor settings for optimal performance.
Sawing
General Sawing Precautions
Read safety section, practice on logs, use only for wood, avoid forcing the saw.
Guard Against Kickback
Instructions on checking the chain brake operation and chain sharpness.
Felling a Tree
Steps for felling a tree, including planning direction and making cuts.
Bucking and Limbing Safety
Advice on maintaining foothold, handling rolling logs, and avoiding kickback.
Maintenance
Pre-Maintenance Safety
Ensure engine is stopped and cool; disconnect spark plug before cleaning/repair.
Air Filter Maintenance
Instructions for cleaning the air filter surface and meshes.
Oiling Port Check
Procedure to check the oiling port on the guide bar for clogging.
Guide Bar Maintenance
Steps for cleaning the bar groove, oiling port, and greasing the nose sprocket.
General Unit Inspection
Check for fuel leaks, loose fastenings, and damage to major parts.
Cylinder Fins Cleaning
Periodically check and clean cylinder fins to prevent engine overheating.
Maintenance of Saw Chain and Guide Bar
Saw Chain Sharpening Importance
Stresses the importance of sharp cutters for safe and smooth operation.
When to Sharpen Chain
Indicators for chain sharpening: sawdust type, force needed, cut path, vibration.
Cutter Setting Standards
Safety warning to wear gloves and outlines cutter setting standards.
Chain Filing Procedure
Instructions on how to file the chain cutters with a round file.
Depth Gauge Adjustment
Guide on checking and filing the depth gauge to the proper level.
Guide Bar Wear Check
Instructions on how to check for wear on the guide bar rails.
Guide Bar/Chain Combinations
Lists compatible guide bar and saw chain combinations for the models.
Troubleshooting Guide
Starting Failure Troubleshooting
Addresses issues like icing prevention, fuel quality, engine flooding, and spark ignition.
Power/Acceleration Issues
Covers poor power, acceleration, or rough idling due to fuel, filters, or carburetor.
Oil Not Coming Out
Troubleshooting steps for when chain oil is not being dispensed.
Disposal
Machine Disposal
Instructions not to disassemble the machine when disposing of it.
Fluid Disposal Regulations
Advises following local regulations for disposing of fuel and chain oil.

Table of Contents