Zenoah G3800 Owner's Manual
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Zenoah G3800 Owner's Manual

Zenoah chain saw owner's manual
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G3800
848C4093A2 (601)
G
B
OWNER'S MANUAL
CHAIN SAWS
G3800

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Summary of Contents for Zenoah G3800

  • Page 1 G3800 848C4093A2 (601) OWNER’S MANUAL CHAIN SAWS G3800...

  • Page 2: Explanation Of Symbols And Safety Warnings

    G3800 EXPLANATION OF SYMBOLS AND SAFETY WARNINGS Read operator's instruction book before operating this machine. Read, understand and follow all warnings. MAY INVOLVE A DAILY LEVEL OF PERSONAL EXPOSURE TO NOISE MODEL EN 608-ISO 7182 37.2 cm APPROVAL NUMBER OF CE EXHAUST EMISSION REGULATION (2002/88/EC)

  • Page 3: Table Of Contents

    G3800 Contents 1. For Safe Operation ... 4 2. Explanation of Symbols on the Machine ... 6 3. Installing Guide Bar and Saw Chain ... 7 4. Fuel and Chain Oil ... 8 5. Operating the Engine ... 9 6. Sawing ... 11 7.

  • Page 4: For Safe Operation

    G3800 1. For safe operation 1. Never operate a chain saw when you are fatigued, ill, or upset, or under the influence of medica- tion that may make you drowsy, or if you are under the influence of alcohol or drugs.

  • Page 5: Kickback Safety Precau- Tions For Chain Saw Users

    Kickback may occur when the nose or tip of the guide bar touches an object, or when the wood closes in and pinches the G3800 saw chain in the cut. Tip contact in some cases may cause a light- ning fast reverse reaction,kicking the guide bar up and back to- wards the operator.

  • Page 6: Explanation Of Symbols On The Machine

    G3800 2. Explanation of Symbols on the Machine For safe operation and maintenance, symbols are carved in relief on the machine. According to these indications, please be careful not to make any mistake. The port to refuel “MIX GASOLINE” Position: Fuel cap...

  • Page 7: Installing Guide Bar And Saw Chain

    Note: A new chain will expand its length in the beginning of use. Check and readjust the tension frequently as a loose chain can easily derail or cause rapid wear of itseif and the guide bar. Screwdriver for carburetor adjustment Loosen Tighten Tensioner screw G3800 GB-7...

  • Page 8: Fuel And Chain Oil

    3 m (10 ft) away from the fueling point before starting the engine. • The Komatsu Zenoah engines are lubricated by oil specially formulated for air-cooled 2-cycle gasoline engine use. If Komatsu Zenoah oil is not available,...

  • Page 9: Operating The Engine

    4. Make a test cut and adjust the H needle for best cutting power, not for maximum speed. Chain oil Chain oil flow Rich adjusting Lean H needle Idle adjusting screw H needle : -1/4 L needle : -1/4 G3800 GB-9...

  • Page 10: Chain Brake

    G3800 CHAIN BRAKE This machine is equipped with an automatic brake to stop saw chain rotation upon occurrence of kickback during saw cutting. The brake is automatically operated by inertial force, which acts on the weight fitted inside the front guard.

  • Page 11: Sawing

    Before starting work, check the direction of bending force inside the log to be cut. Always finish cutting from the opposite side of the bending direction to prevent the guide bar from being caught in the cut. G3800 Felling cut GB-11...

  • Page 12: Maintenance

    G3800 A log lying on the ground Saw down halfway, then roll the log over and cut from the opposite side. A log hanging off the ground In area A, saw up from the bottom one-third and finish by sawing down from the top. In area B, saw down from the top one-third and finish by sawing up from the bot- tom.

  • Page 13: Maintenance Of Saw Chain And Guide Bar

    Keep the file position as illustrated. After each cutter has been filed, check the depth gauge and file it to the proper level as illustrated. Appropriate gauge checker 91VG .025 (0.64 mm) Depth gauge standard G3800 Champion RCJ-7Y Make the shoulder round GB-13...

  • Page 14: Troubleshooting Guide

    Ruler No gap Chain tilts WARNING: This saw is equipped with one of the following low kickback bar/chain combinations: Komatsu Zenoah Part Number Saw Model Bar Size Guide Bar 848-CB2-4G23 2931-52210 G3800 3608-52112 Case 3. Oil does not come out Check oil for sub- Replace.

  • Page 15: Specifications

    KOMATSU ZENOAH authorized dealer. WARRANTY PERIOD: 1 year (6 months if used profes- sionally, and 30 days if used for rental purpose) from the date of initial purchase.

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