OWNER/OPERATOR MANUALCHAINSAWS3369-93110 (506)The engine exhaust from this productcontains chemicals known to the Stateof California to cause cancer,
10 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. Operation CHECKING OIL SUPPLY Make sure to set up the bar and the chain whenchecking the oil supply.If not, the rotating parts may be exposed. It
12 so that saw chain does not turn. If idling speed istoo slow, turn the screw clockwise. 4. Make a test cut adjust the H needle for bestcutting po
7. Operation CHAIN BRAKE This machine is equipped with an automatic braketo stop saw chain rotation upon occurrence ofkickback while in saw cutting o
14 • Before proceeding to your job, read "ForSafe Operation" section It is recommendedto first practice sawing easy logs. This alsohelps
FELLING A TREE (F21) 1. Decide the felling direction considering thewind, lean of the tree, location of heavybranches, ease of job after felling and
16 A Log lying on the ground (F22) Saw down halfway, then roll the log over and cutfrom the opposite side. A Log hanging off the ground (F23) In ar
9. MaintenanceMaintenance, replacement, or repair of theemission control device and systems may beperformed by any non-road engine repairestablishment
18 9. Maintenance PERIODICAL SERVICE POINTS 1. Cylinder fins Dust clogging between the cylinder fins will causeoverheating of the engine. Periodic
4. Spark plug (F32) Clean the electrodes with a wire brush and resetthe gap to 0.65 mm as necessary.Champion: CJ-7Y orNGK: BPM7A5. Sprocket (F33) Ch
SAFETY FIRSTInstructions contained in warnings within thismanual marked with a symbol concerncritical points which must be taken intoconsideration to
20 SAW CHAIN It is very important for smooth and safeoperation to keep the cutters always sharp. Your cutters need to be sharpened when: • Sawdus
10. Maintenance of Saw Chain and Guide Bar GUIDE BAR • Reverse the bar occasionally to prevent partialwear. • The bar rail should always be a square
12. Troubleshooting GuideCase 1. Starting failure: Make sure the icing prevention system is not working. Case 2. Lack of power/Poor acceleration/Rough
23 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
24 Fig.A-1 POWER UNIT (1)13. Parts list G621AVS
25 G621AVSQ'TYKey# PART NUMBER DESCRIPTION NOTE/UNITFig.A-1 POWER UNIT (1)2 3356-12141 Grommet 13 848-C90-14B3 Gasket 14 2618-14120 Insulator
26 G621AVSFig.A-2 POWER UNIT (2)
G621AVS 27 Q'TYKey# PART NUMBER DESCRIPTION NOTE/UNITFig.A-2 POWER UNIT (2)1 3356-24101 Brake band comp. 12 3356-24111 • Band 13 3356-24120 •
Q'TYKey# PART NUMBER DESCRIPTION NOTE/UNIT1 3369-81000 Carburetor assy 12 3306-81380 Screen 13 3350-81130 Cover 14 3350-81140 Cover 15 3366-81151
29 Q'TYKey# PART NUMBER DESCRIPTION NOTE/UNITK2 3350-06020 Gasket kit 1 OPK3 3350-06030 Diaphragm kit 1 OPK8 2623-06012 Double spike kit 1 OPQ
2. Specifications G621AVSPower unit : Displacement ···················································································· 3.78(62.0) cu
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
KOMATSU ZENOAH AMERICA INC.4344 Shackleford Road Suite 500Norcross, Georgia 30093©Printed in Japan
4 3. Symbols on the machineMade in JapanRedMax IMPORTANT ENGINE INFORMATION THIS ENGINE CONFORMS TO US EPA PH1 FOR SMALL OFF-ROAD ENGINES.
4. For safe operation1. Never operate a chain saw when you arefatigued, ill, or upset, or under theinfluence of medication that may makeyou drowsy, or
6 4. For safe operation16. Operate the chain saw only in wellventilated areas. Never start or run theengine inside a closed room or building.Exhaus
The saw chain has very sharp edges. Use thickprotective gloves for safety. 1. Loosen the nuts and remove the chain cover.(F1)2. Install the attached s
8 6. Fuel and Chain oil RECOMMENDED MIXING RATIOGASOLINE 50:OIL 1• Exhaust emission are controlled by thefundamental engine parameters andcomponen
6. Fuel and Chain oil 9 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 regener
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