RedMax G621AVS Owner's/Operator's Manual

Redmax chainsaw owner/operator 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

G621AVS

330138 and up

WARNING

Before using our products, please

read this manual carefully to

understand the proper use of your

unit.

3369-93110 (506)

Table of Contents

Summary of Contents for RedMax G621AVS

Page 1 State of California to cause cancer, birth defects or other reproductive harm. APPLICABLE SERIAL NUMBERS : CHAINSAWS G621AVS Before using our products, please read this manual carefully to understand the proper use of your unit.
Page 2: Table Of Contents
SAFETY FIRST Instructions contained in warnings within this manual marked with a 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 3: Parts Location
1. Parts location 2. Specifications ■ G621AVS Power unit : Displacement ···················································································· 3.78(62.0) cu-in(cm Fuel ············································································· Mixture(Gasoline 50 : 2-cycle oil 1) Fuel tank capacity ················································································· 22.4(0.67) fl.oz( ) Chain oil ························································································ Motor oil SAE #10W-30 Oil tank capacity ···················································································· 11.8(0.35) fl.oz( ) Carburetor ·········································································...
Page 4: Symbols On The Machine
ENGINE FAMILY : 5KZXS. 0625MN:EM ENGINE DISPLACEMENT : 62cc REFER TO OWNER'S MANUMAL FOR MAINTE- NANCE SPECIFICATIONS AND ADJUSTMENTS. MANUFACTURED : RedMax Made in Japan 4  WARNING right of the rear handle) to the point of the arrow, you can set the starting mode as follows •...
Page 5: For Safe Operation
4. For safe operation 1. Never operate a chain saw when you are fatigued, ill, or upset, or under the influence of medication that may make you drowsy, or if you are under the influence of alcohol or drugs. 2. Use safety footwear, snug fitting clothing and eye, hearing and head protection devices.
Page 6: Kickback Safety Precautions For Chain Saw Users
4. For safe operation 16. Operate the chain saw only in well ventilated areas. Never start or run the engine inside a closed room or building. Exhaust fumes contain dangerous carbon monoxide. 17. Do not operate a chain saw in a tree unless specially trained to do so.
Page 7: Installing Guide Bar And Saw Chain
5. Installing guide bar and saw chain WARNING The saw chain has very sharp edges. Use thick protective gloves for safety. 1. Loosen the nuts and remove the chain cover. (F1) 2. Install the attached spike to the power unit. 3.
Page 8: Fuel And Chain Oil
3m (10ft) away from the fueling point before starting the engine. • The RedMax engines are lubricated by oil specially formulated for air-cooled 2-cycle gasoline engine use. If RedMax oil is not available, use an anti-oxidant added quality oil expressly labeled for air-cooled 2-cycle engine use.
Page 9 6. Fuel and Chain oil again for at least one minute. As some oils may be difficult to agitate depending on oil ingredients, sufficient agitation is necessary for the engine to last long. Be careful that, if the agitation is insufficient, there is an increased danger of early piston seizing due to abnormally lean mixture.
Page 10: Operation
7. Operation 10  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.
Page 11 7. Operation ■ 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. After starting the engine, run the chain at medium speed and see if chain oil is scattered off as shown in the figure.
Page 12 7. Operation 12  so that saw chain does not turn. If idling speed is too slow, turn the screw clockwise. 4. Make a test cut adjust the H needle for best cutting power, not for maximum speed. (1) L needle (2) H needle (3) Idle adjusting screw ■...
Page 13 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 14: Sawing
8. Sawing 14  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 15 8. Sawing ■ FELLING A TREE (F21) 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 16 8. Sawing 16  A Log lying on the ground (F22) Saw down halfway, then roll the log over and cut from the opposite side. A Log hanging off the ground (F23) In area A, saw up from the bottom one-third and finish by sawing down from the top.
Page 17: 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 18 9. Maintenance 18  ■ PERIODICAL SERVICE POINTS 1. Cylinder fins Dust clogging between the cylinder fins will cause overheating of the engine. Periodically check and clean the cylinder fins after removing the air cleaner and the cylinder cover. When installing the cylinder cover, make sure that switch wires and grommets are positioned correctly in place.
Page 19 9. Maintenance 4. Spark plug (F32) Clean the electrodes with a wire brush and reset the gap to 0.65 mm as necessary. Champion: CJ-7Y NGK: BPM7A 5. Sprocket (F33) Check for cracks and for excesslve wear interfenng with the chain drive. If the wearing is found obviously, replace it with new one.
Page 20: Maintenance Of Saw Chain And Guide Bar
10. Maintenance of Saw Chain and Guide Bar 20  ■ 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. •...
Page 21: Storage
(F36) (1) Ruler (2) Gap (3) No gap (4) Chain tilts WARNING This saw is equipped with one of the following low kickback bar/chain combinations: RedMax Part Number Bar Size Guide Bar 18” (45cm) 180RNDD176 20” (50cm) 200RNDD176 24” (60cm)
Page 22: Troubleshooting Guide
12. Troubleshooting Guide Case 1. Starting failure: Make sure the icing prevention system is not working. Check fuel for water or substandard mixture. Check for engine flooding. Check the spark. Case 2. Lack of power/Poor acceleration/Rough idling Check fuel for water or substandard mixture.
Page 23: Parts List
(7) years after the machine is discontinued. It is also possible that some parts may be available even after the limit of seven (7) years.] APPLICABLE SERIAL NUMBERS : CHAINSAWS G621AVS 330138 and up June 2005 23 ...
Page 24 13. Parts list G621AVS Fig.A-1 POWER UNIT (1) 24 ...
Page 25 3356-82114 01601-20513 01641-20508 2616-82310 2616-82410 848-C91-1510 3359-15112 3357-15120 0263-20408 848-C91-1520 01640-20610 3356-15210 3356-15220 3356-15230 848-C90-1260 119 848-C90-12A7 848-815-8500 G621AVS Q'TY DESCRIPTION NOTE /UNIT Piston Ring Ring Bearing Washer Crankshaft comp. Shim 0-2 OP Washer Clutch assy • Plate • Spring...
Page 26 G621AVS Fig.A-2 POWER UNIT (2) 26 ...
Page 27 2622-83302 3356-83322 3388-83340 3369-31163 3359-53121 3369-75131 2610-83220 2623-06012 2618-53002 3356-53220 0261-00410 2616-53300 2618-53510 3310-53331 2670-14320 2626-31110 3/8Px7T G621AVS Q'TY DESCRIPTION NOTE /UNIT Cord Rotor comp. • Ratchet • Spring • Washer • Boft Spring Tube Bolt Screw Spark plug CJ-7Y Carburetor See Fig.B...
Page 28 3369-81410 Needle (H) 3369-81420 Needle (L) 1480-81420 Plug 3356-81430 Plug Key# PART NUMBER DESCRIPTION 3320-91140 Wrench 2670-91150 Screwdriver 3356-97110 Bar protector 3665-97110 Bar protector 3369-93110 Owners manual G621AVS Q'TY NOTE /UNIT Q'TY NOTE /UNIT OP, 18” OP, 20” & 24”...
Page 29 Stopper 3350-96240 Gauge 3350-96510 Guide 3330-97210 Wrench 3356-96230 Guide KIT PARTS Key# PART NUMBER DESCRIPTION 3350-06020 Gasket kit 3350-06030 Diaphragm kit 2623-06012 Double spike kit G621AVS Q'TY NOTE /UNIT 3/8P 3/8P 3/8P Q'TY NOTE /UNIT Q'TY NOTE /UNIT 29 ...
Page 30 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 31 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...

RedMax G621AVS Owner's/Operator's Manual

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