RedMax GZ4000 Specifications

OWNER/OPERATOR MANUALCHAINSAWS848-C50-93A0 (603)The engine exhaust from this productcontains chemicals known to the Stateof California to cause cancer

6. Fuel and Chain oil 10  RECOMMENDED MIXING RATIOGASOLINE 50:OIL 1(when using ZENOAH genuine oil)• Exhaust emission are controlled by thefundamen

6. Fuel and Chain oil 11  CHAIN OIL Use motor oil SAE 10W-30 all year round, orSAE 30-40 in summer and SAE 20 in winter. Do not use waste or regene

 12 It is very dangerous to run a chainsaw thatmounts broken parts or lacks any parts.Before starting engine, make sure that all theparts including

7. OperationKeep clear of the saw chain as it will startrotatIng upon starting of engine. CHECKING OIL SUPPLY Make sure to set up the bar and the ch

 14  CHAIN BRAKE This machine is equipped with an automatic braketo stop saw chain rotation upon occurrence ofkickback while in saw cutting operati

7. Operation STOPPING ENGINE 1. Release the throttle lever to allow the engineidling for a few minutes 2. Put the switch to the "O" (STOP)

 16 7. Operation HOW TO SWITCH BETWEEN OPERATINGMODES (F19)1. Flip the engine switch to turn off the engine.2. Remove the cover to the air filter,

• Before proceeding to your job, read "ForSafe Operation" section It is recommendedto first practice sawing easy logs. This alsohelps you ge

 18  FELLING A TREE (F22) 1. Decide the felling direction considering thewind, lean of the tree, location of heavybranches, ease of job after felli

A Log lying on the ground (F23) Saw down halfway, then roll the log over and cutfrom the opposite side. A Log hanging off the ground (F24) In area A,

 20 9. MaintenanceBefore cleaning, inspecting or repairing yourunit, make sure that engine has stopped and iscool. Disconnect the spark plug to prev

9. Maintenance PERIODICAL SERVICE POINTS 1. Air cooling systemDust clogging around the cooling system and thecylinder fins will cause overheating of

 22 2. Fuel filter (a) Using a wire hook, take out the filter from thefiller port. (F34) (1) Fuel filter (b) Disassemble the filter and wash with ga

SAW CHAIN It is very important for smooth and safeoperation to keep the cutters always sharp. Your cutters need to be sharpened when: • Sawdust beco

 24 10. Maintenance of Saw Chain and Guide Bar Make sure every cutter has the same length andedge angles as illustrated. (F38) (4) Cutter length (5)

11. Troubleshooting GuideCase 1. Starting failure: Make sure the icing prevention system is not working. Case 2. Lack of power/Poor acceleration/Rough

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

 27 13. Parts list NOTE : 1. Use KOMATSU ZENOAH genuine parts as specified in the parts list for repair and/orreplacement. 2. KOMATSU ZENOAH does no

 28 GZ400013. Parts list Fig.1 POWER UNIT (S/N 60322501 and up)

 29 GZ4000Fig.1 POWER UNIT (S/N 60322501 and up)Key# PART NUMBER DESCRIPTIONQ'TY/UNITNOTE50 T2100-55610 COVER 151 2670-55410 SCREW 452 848-C50-

SAFETY FIRSTInstructions contained in warnings within thismanual marked with a symbol concerncritical points which must be taken intoconsideration to

GZ400013. Parts list Fig.2 POWER UNIT (S/N 300101 and up) 30 

GZ4000 31 Fig.2 POWER UNIT (S/N 300101 and up)Key# PART NUMBER DESCRIPTIONQ'TY/UNITNOTE50 T2128-54000 BRAKE ASSY 151 2671-53210 • SCREW 152 281

 32 13. Parts list Fig.3 CARBURETOR COMPONENTS(S/N 300101 and up)GZ4000Key# PART NUMBER DESCRIPTIONQ'TY/UNITNOTE1 848-C50-8101 CARBURETOR ASSY

 33 GZ4000Key# PART NUMBER DESCRIPTIONQ'TY/UNITNOTE Key# PART NUMBER DESCRIPTIONQ'TY/UNITNOTE1 848-8U1-0010 Plug, wrench 13x16 1 (OP)2 267

THE CALIFORNIA AIR RESOURCES BOARD AND KOMATSU ZENOAH Co. ARE PLEASED TOEXPLAIN THE EMISSION CONTROL SYSTEM WARRANTY ON YOUR 1995 AND LATER LAWN ANDGA

EMISSION-RELATED PARTS, FOR TWO (2) YEARS FROM THE DATE OF ORIGINAL DELIVERY, KOMATSU ZENOAHAMERICA INC. (THE COMPANY), THROUGH ANY RedMax DEALER, WIL

Pièces en rapport avec les émissions de gaz d'échappement : KOMATSU ZENOAH AMERICA INC., parl'intermédiaire de n'importe quel revendeur

2. Specifications GZ4000Power unit : Dis placement ··················································································· 2.45(40.1) cu

3. Symbols on the machine 5 IMPORTANT ENGINE INFORMATIONTHIS ENGINE MEETS U.S. EPA PH2 AND 2006 CALIFORNIA EMISSION REGULATIONS FOR SI SORE’s COMPLI

 6 4. For safe operation1. Never operate a chain saw when you arefatigued, ill, or upset, or under theinfluence of medication that may makeyou drows

 7 4. For safe operation16. Operate the chain saw only in wellventilated areas. Never start or run theengine inside a closed room or building.Exhaus

A standard saw unit package contains the items asillustrated. (F1) (1) Power unit (2) Bar protector (3) Guide bar (4) Saw chain (5) Plug wrench (6) Sc

5. Installing guide bar and saw chain 9 7. Tighten the tensioner screw. (2) Loosen (3) Tighten (4) Tensioner screw A new chain will expand its lengt