RedMax GZ4000 Owner's/Operator's Manual
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RedMax GZ4000 Owner's/Operator's Manual

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OWNER / OPERATOR MANUAL
WARNING
The engine exhaust from this product
contains chemicals known to the State
of California to cause cancer, birth
defects or other reproductive harm.
APPLICABLE SERIAL NUMBERS :
CHAINSAWS
GZ4000
Before using our products, please
read this manual carefully to
understand the proper use of your
unit.
60322501 and up
848-C50-93A0 (603)
WARNING

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Summary of Contents for RedMax GZ4000

  • Page 1 848-C50-93A0 (603) OWNER / OPERATOR MANUAL CHAINSAWS GZ4000 WARNING WARNING The engine exhaust from this product Before using our products, please contains chemicals known to the State read this manual carefully to of California to cause cancer, birth understand the proper use of your defects or other reproductive harm.

  • Page 3: Table Of Contents

    SAFETY FIRST Instructions contained in warnings within this manual marked with a symbol concern critical points which must be taken into consideration to prevent possible serious bodily injury, and for this reason you are requested to read all such instructions carefully and follow them without fail.

  • Page 4: Parts Location

    10. Oil tank 11. Left handle 12. Saw chain 13. Guide Bar 2. Specifications ■ GZ4000 Power unit : Dis placement ··················································································· 2.45(40.1) cu-in(cm Fuel ············································································· Mixture(Gasoline 50 : 2-cycle oil 1) (when using ZENOAH genuine oil) Fuel tank capacity ················································································· 10.4(0.31) fl.oz( ) Chain oil ························································································...

  • Page 5: Symbols On The Machine

    REFER TO OWNER’S MANUAL FOR MAINTE- Se référer au Manuel de l’utilisateur pour les NANCE SPECIFICATIONS AND ADJUSTMENTS. spécifications d’entretien et les réglages. MANUFACTURED : Manufacturé : MADE IN JAPAN MADE IN JAPAN Use RedMax 50:1 Oil ! Use RedMax 50:1 Oil ! 5 ...

  • Page 6: For Safe Operation

    4. For safe operation 1. Never operate a chain saw when you are 9. Before you start the engine, make sure fatigued, ill, or upset, or under the the saw chain is not contacting anything. influence of medication that may make 10.

  • Page 7: Kickback Safety Precautions For Chain Saw Users

    4. For safe operation 16. Operate the chain saw only in well 19. When transporting your chain saw, make ventilated areas. Never start or run the sure the appropriate guide bar scabbard engine inside a closed room or building. is in place. Exhaust fumes contain dangerous 20.

  • Page 8: Installing Guide Bar And Saw Chain

    5. Installing guide bar and saw chain A standard saw unit package contains the items as illustrated. (F1) (1) Power unit (2) Bar protector (3) Guide bar (4) Saw chain (5) Plug wrench (6) Screwdriver for carburetor adjustment Open the box and install the guide bar and the saw chain on the power unit as follows: WARNING The saw chain has very sharp edges.
  • Page 9 5. Installing guide bar and saw chain 7. Tighten the tensioner screw. (2) Loosen (3) Tighten (4) Tensioner screw 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.

  • Page 10: Fuel And Chain Oil

    • These engines are certified to operate on unleaded gasoline. • Make sure to use gasoline with a • The RedMax engines are lubricated by oil minimum octane number of 89 RON specially formulated for air-cooled 2-cycle (USA/Canada: 87AL) gasoline engine use.
  • Page 11 6. Fuel and Chain oil again for at least one minute. As some long period of time, clean the fuel tank oils may be difficult to agitate depending after rendering it empty. Next, activate the on oil ingredients, sufficient agitation is engine and empty the carburetor of the necessary for the engine to last long.

  • Page 12: Operation

    7. Operation WARNING It is very dangerous to run a chainsaw that mounts broken parts or lacks any parts. Before starting engine, make sure that all the parts including bar and chain are installed properly. ■ STARTING ENGINE 1. Fill fuel and chain oil tanks respectively, and tighten the caps securely.
  • Page 13 7. Operation WARNING Keep clear of the saw chain as it will start rotatIng upon starting of engine. ■ CHECKING OIL SUPPLY WARNING Make sure to set up the bar and the chain when checking the oil supply. If not, the rotating parts may be exposed. It is very dangerous.
  • Page 14 7. Operation ■ CHAIN BRAKE This machine is equipped with an automatic brake to stop saw chain rotation upon occurrence of kickback while in saw cutting operation. The brake is automatically operated by inertial force which acts on the weight fitted inside the front guard. This brake can also be operated manually with the front guard turned down to the guide bar.
  • Page 15 7. Operation ■ STOPPING ENGINE 1. Release the throttle lever to allow the engine idling for a few minutes 2. Put the switch to the "O" (STOP) position. (F17) (1) Switch Carburetor anti-freeze mechanism Operating the chain saws in temperatures of 0–5°C at times of high humidity may result in ice forming within the carburetor, and this in turn may cause the output power of the engine to be reduced or for...
  • Page 16 7. Operation ■ HOW TO SWITCH BETWEEN OPERATING MODES (F19) 1. Flip the engine switch to turn off the engine. 2. Remove the cover to the air filter, remove the air filter, and then remove the choke knob from the cylinder cover.

  • Page 17: Sawing

    8. Sawing WARNING • Before proceeding to your job, read "For Safe Operation" section It is recommended to first practice sawing easy logs. This also helps you get accustomed to your unit. • Always follow the safety regulations. The chain saw must only be used for cutting wood.
  • Page 18 8. Sawing ■ FELLING A TREE (F22) 1. Decide the felling direction considering the wind, lean of the tree, location of heavy branches, ease of job after felling and other factors. 2. While clearing the area around the tree, arrange a good foothold and retreat path. 3.
  • Page 19 8. Sawing A Log lying on the ground (F23) Saw down halfway, then roll the log over and cut from the opposite side. A Log hanging off the ground (F24) In area A, saw up from the bottom one-third and finish by sawing down from the top.

  • Page 20: Maintenance

    9. Maintenance Maintenance, replacement, or repair of the emission control device and systems may be performed by any non-road engine repair establishment or individual. WARNING Before cleaning, inspecting or repairing your unit, make sure that engine has stopped and is cool.
  • Page 21 9. Maintenance ■ PERIODICAL SERVICE POINTS 1. Air cooling system Dust clogging around the cooling system and the cylinder fins will cause overheating of the engine. Periodically check and clean the cooling system and the cylinder fins with a brush after removing the cylinder cover, the air cleaner and the recoil case.
  • Page 22 9. Maintenance 2. Fuel filter (a) Using a wire hook, take out the filter from the filler port. (F34) (1) Fuel filter (b) Disassemble the filter and wash with gasoline, or replace with new one if needed. NOTE • After removing the filter, use a pinch to hold the end of the suction pipe.

  • Page 23: Maintenance Of Saw Chain And Guide Bar

    10. Maintenance of Saw Chain and Guide Bar ■ SAW CHAIN WARNING It is very important for smooth and safe operation to keep the cutters always sharp. Your cutters need to be sharpened when: • Sawdust becomes powder-like. • You need extra force to saw in. •...
  • Page 24 10. Maintenance of Saw Chain and Guide Bar Make sure every cutter has the same length and edge angles as illustrated. (F38) (4) Cutter length (5) Filing angle (6) Side plate angle (7) Top plate cutting angle ■ GUIDE BAR •...

  • Page 25: Troubleshooting Guide

    11. Troubleshooting Guide Case 1. Starting failure: Make sure the icing prevention system is not working. Check fuel for water or ➜ Replace with proper fuel. substandard mixture. Remove and dry the spark plug. ➜ Check for engine flooding. Then pull the starter again with no choke. ➜...

  • Page 26: Storage

    12. Storage 1. Empty the fuel tank and run the engine out of fuel. 2. Empty the oil tank. 3. Clean the entire unit. 4. Store the unit in a dry place out of the reach of children. 26 ...

  • Page 27: Parts List

    13. Parts list CHAINSAWS GZ4000 NOTE : 1. Use KOMATSU ZENOAH genuine parts as specified in the parts list for repair and/or replacement. 2. KOMATSU ZENOAH does not warrant the machines, which have been damaged by the use of any parts other than those specified by the company.
  • Page 28 GZ4000 13. Parts list Fig.1 POWER UNIT (S/N 60322501 and up) 28 ...
  • Page 29 GZ4000 Fig.1 POWER UNIT (S/N 60322501 and up) Q'TY Q'TY Key# PART NUMBER DESCRIPTION NOTE Key# PART NUMBER DESCRIPTION NOTE /UNIT /UNIT 848-C50-1211 CYLINDER ASSY T2100-55610 COVER 848-C50-12C1 • TR COVER MAG 2670-55410 SCREW 848-C50-12D1 • TR COVER PTO 848-C50-7111 ROTOR COMP.
  • Page 30 GZ4000 13. Parts list Fig.2 POWER UNIT (S/N 300101 and up) 30 ...
  • Page 31 GZ4000 Fig.2 POWER UNIT (S/N 300101 and up) Q'TY Q'TY Key# PART NUMBER DESCRIPTION NOTE Key# PART NUMBER DESCRIPTION NOTE /UNIT /UNIT 2670-14320 SCREW T2128-54000 BRAKE ASSY 848-825-1911 SCREW 2671-53210 • SCREW 848-C30-33E3 2810-53221 • NUT T2128-34110 COVER 2671-53230 • GEAR...
  • Page 32 GZ4000 13. Parts list Q'TY Key# PART NUMBER DESCRIPTION NOTE Fig.3 CARBURETOR COMPONENTS /UNIT (S/N 300101 and up) 848-C50-8101 CARBURETOR ASSY ✻ 848-C50-81A0 • STRAINER ✻ 848-C50-81J0 • PLUG 4 848-C50-80M0 • SPRING 848-C50-80N0 • PLUNGER 848-C50-80P0 • O-RING 848-C50-81T0 •...
  • Page 33 GZ4000 13. Parts list Fig.4 ACCESSORIES (S/N 300101 and up) Q'TY Q'TY Key# PART NUMBER DESCRIPTION NOTE Key# PART NUMBER DESCRIPTION NOTE /UNIT /UNIT 848-8U1-0010 Plug, wrench 13x16 (OP) 2670-91150 Driver (OP) Oregon 10014 Bar 16” Oregon double- Chain guard 91VG56X...

  • Page 34: California Emission Control Warranty Statement

    CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONS THE CALIFORNIA AIR RESOURCES BOARD AND KOMATSU ZENOAH Co. ARE PLEASED TO EXPLAIN THE EMISSION CONTROL SYSTEM WARRANTY ON YOUR 1995 AND LATER LAWN AND GARDEN EQUIPMENT ENGINE. IN CALIFORNIA, NEW UTILITY AND LAWN AND GARDEN EQUIPMENT ENGINES MUST BE DESIGNED, BUILT AND EQUIPPED TO MEET THE STATE'S STRINGENT ANTI-SMOG STANDARDS.
  • Page 35 ZENOAH AMERICA INC. AT (770)-381-5147. IMPORTANT: YOU WILL RECEIVE A WARRANTY REGISTRATION CARD AT TIME OF PURCHASE.PLEASE FILL OUT THE CARD AND SEND IT TO RedMax / KOMATSU ZENOA AMERICA WITHIN SEVEN (7) DAYS.BE SURE TO KEEP A COPY FOR YOUR RECORDS.
  • Page 36 Telles sont les limites de la garantie. Le coût du transport de l'unité jusqu'au revendeur RedMax et depuis celui-ci sera à la charge de l'acheteur. L'acheteur ne supportera pas le coût de main d'oeuvre du diagnostic qui amène à la conclusion qu'une pièce garantie est défectueuse, si ce diagnostic est effectué...

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