RedMax G3800AVS Chainsaw Owner/Operator Manual

Model: G3800AVS

Safety First

WARNING symbols in this manual indicate critical points requiring careful consideration to prevent serious bodily injury. Always read and follow these instructions carefully.

WARNING: Instructions to prevent accidents leading to serious bodily injury or death.

IMPORTANT: Instructions to prevent mechanical failure, breakdown, or damage.

NOTE: Hints or directions useful in the use of the product.

1. Parts location
2. Specifications
3. Symbols on the machine
4. For safe operation
5. Installing guide bar and saw chain
6. Fuel and chain oil
7. Operation
8. Sawing
9. Maintenance
10. Maintenance of Saw Chain and Guide Bar
11. Troubleshooting Guide
12. Storage
13. Parts list

1. Parts Location

Diagram showing the parts of the chainsaw with numbered labels.

1. Front guard
2. Starter knob
3. Air cleaner
4. Choke knob
5. Throttle interlock
6. Right handle
7. Throttle lever
8. Engine switch
9. Fuel tank
10. Oil tank
11. Left handle
12. Saw chain
13. Guide Bar

2. Specifications

Model: G3800AVS

Power unit:
Displacement: 2.34 cu. in. (37.2cc)
Fuel: Mixture (Gasoline 32: 2-cycle oil)
Fuel tank capacity: 10.4 qt. (0.31 L)
Chain oil: Motor oil SAE
Oil tank capacity: 7.10 fl. oz. (0.21 L)
Carburetor: Diaphragm type (Walbro)
Ignition system: Magneto
Spark plug: Champion RCJ-7Y
Oil feeding system: Automatic
Sprocket: 3/8 in. pitch, 7-tooth
Dimensions (L-W-H): 14.8(370)x9.4(235)x10.8(270) in(mm)
Dry weight: 9.3 lbs. (4.2 kg)

Cutting attachment:

Guide bar: 16 in. (40cm), sprocket nose
Saw chain: Oregon 91VG, 3/8 in. pitch, 0.050 in. gauge

Specifications are subject to change without notice.

3. Symbols on the machine

Symbols are carved on the machine for safe operation and maintenance. Please refer to these indications.

(a) Fuel cap: Port to refuel the "MIX GASOLINE".
(b) Oil cap: Port to refuel the chain oil.
(c) Engine stop switch: Position "O" stops the engine.
(d) Choke knob: Used for starting the engine. First-stage for warm engines, second-stage for cool engines.
(e) Adjustment screws: "H" for high-speed, "L" for slow-speed, "T" for idle adjustment.
(f) Chain brake: Indicates directions for releasing (white arrow) and activating (black arrow) the chain brake.

IMPORTANT ENGINE INFORMATION: This engine conforms to US EPA PH1 for Small Off-Road Engines. Engine Family: YKZXS.0374BC:EM. Engine Displacement: 37.2cc. Refer to the Owner's Manual for maintenance specifications and adjustments. Manufactured by KOMATSU ZENOAH CO. for RedMax.

4. For safe operation

Never operate when fatigued, ill, upset, or under the influence of medication, alcohol, or drugs.
Use safety footwear, snug fitting clothing, and eye, hearing, and head protection.
Handle fuel with caution. Wipe up spills and move the saw at least 10 feet (3m) from the fueling point before starting. Eliminate all sources of sparks or flame in fueling areas. Do not smoke while handling fuel or operating the saw.
Keep bystanders and animals at least 30 feet (9m) away from the work area when starting or operating the saw.
Ensure a clear work area, secure footing, and a planned retreat path before cutting.
Always hold the chain saw firmly with both hands when the engine is running.
Keep all parts of your body away from the saw chain when the engine is running.
Before starting, ensure the saw chain is not contacting anything.
Carry the chain saw with the engine stopped, the guide bar and chain to the rear, and the muffler away from your body.
Inspect the chain saw before each use for worn or loose parts. Never operate a damaged or improperly adjusted saw. Ensure the saw chain stops moving when the throttle control trigger is released.
Chain saw service, other than specified in this manual, should be performed by competent service personnel. Improper tools can cause damage.
Always shut off the engine before setting it down.
Use extreme caution when cutting small brush and saplings, as they can catch the chain and cause loss of balance.
When cutting a limb under tension, be alert for spring back.
Keep handles dry, clean, and free of oil or fuel mixture.
Operate the chain saw only in well-ventilated areas. Never start or run the engine inside a closed room or building due to carbon monoxide.
Do not operate a chain saw in a tree unless specially trained.
Guard against kickback. Kickback is the upward motion of the guide bar when the saw chain contacts an object.
When transporting, ensure the guide bar scabbard is in place.
This chain saw has a spark arrester muffler. Periodically check it.

KICKBACK SAFETY PRECAUTIONS FOR CHAIN SAW USERS

WARNING: Kickback can occur when the nose or tip of the guide bar touches an object, or when the wood closes in and pinches the saw chain. This can lead to loss of control and serious injury.

Understand kickback to reduce surprise.
Maintain a firm grip on the saw with both hands.
Ensure the cutting area is free from obstructions. Do not let the nose of the guide bar contact logs or branches.
Cut at high engine speeds.
Do not overreach or cut above shoulder height.
Follow manufacturer's instructions for sharpening and maintenance.
Use only manufacturer-specified replacement bars and chains.

5. Installing guide bar and saw chain

A standard saw unit package includes the power unit, bar protector, guide bar, saw chain, plug wrench, and screwdriver for carburetor adjustment.

WARNING: The saw chain has very sharp edges. Use thick protective gloves for safety.

Pull the guard towards the front handle to check that the chain brake is not on.
Loosen the nuts and remove the chain cover.
Gear the chain to the sprocket, mount the guide bar to the power unit, and adjust the chain tensioner.
Fit the chain cover and fasten the nuts finger-tight.
While holding up the tip of the bar, adjust the chain tension by turning the tensioner screw until the tie straps just touch the bottom side of the bar rail.
Tighten the nuts securely with the bar tip held up (12-15 N·m). Check the chain for smooth rotation and proper tension. Readjust if necessary.
Tighten the tensioner screw.

NOTE: A new chain will expand its length in the beginning of use. Check and readjust the tension frequently.

6. Fuel and Chain oil

FUEL

Use oil specially formulated for air-cooled 2-cycle gasoline engines. If RedMax oil is not available, use an antioxidant-added quality oil labeled for air-cooled 2-cycle engines.

RECOMMENDED MIXING RATIO: GASOLINE 32 : OIL 1

These engines are certified to operate on unleaded gasoline.

WARNING: Fuel is highly flammable. Do not smoke or bring flame or sparks near fuel.

HOW TO MIX FUEL

Measure gasoline and oil.
Pour some gasoline into a clean fuel container.
Pour in all the oil and agitate well.
Pour in the rest of the gasoline and agitate for at least one minute.
Label the container clearly.

FOR YOUR ENGINE LIFE, AVOID:

Fuel with no oil (raw gasoline).
Gasohol (can deteriorate rubber/plastic parts).
Oil for 4-cycle engines or water-cooled 2-cycle engines.

CHAIN OIL

Use motor oil SAE 10W-30 all year round, or SAE 30-40 in summer and SAE 20 in winter.

NOTE: Do not use waste or regenerated oil.

7. Operation

STARTING ENGINE

Fill fuel and chain oil tanks and tighten caps.
Set the switch to "I" (ON) position.
Pull out the choke knob to the second-stage position.
Hold the saw securely on the ground and pull the starter rope vigorously.
When the engine ignites, push the choke knob to the first-stage position and pull the starter again.
Allow the engine to warm up with the throttle lever pulled slightly.

WARNING: Do not start the engine while hanging the chain saw with a hand, as the saw chain may touch your body.

CHECKING OIL SUPPLY

After starting, run the chain at medium speed and check if chain oil is scattered off.

ADJUSTING CARBURETOR

The carburetor is factory adjusted but may require fine-tuning. Ensure air/fuel filters are clean and fuel is properly mixed.

Adjust H and L needles as specified (H needle -1/4 turn, L needle fixed).
Start the engine and allow it to warm up.
Turn the idle adjusting screw (T) counter-clockwise until the saw chain stops. Adjust clockwise if idling speed is too slow.
Make a test cut and adjust the H needle for best cutting power.

NOTE: Adjust the carburetor with the bar chain attached.

CHAIN BRAKE

The machine has an automatic brake that stops chain rotation upon kickback. It can also be operated manually by pushing the front guard down towards the guide bar. To release, pull up the front guard until a "click" is heard.

IMPORTANT: Confirm brake operation daily. To test, turn off the engine, hold the saw horizontally, release the front handle, and tap the guide bar tip on a stump or wood.

WARNING: If the brake is not effective, contact a dealer. Running the engine at high speed with the brake engaged can cause clutch damage.

STOPPING ENGINE

Release the throttle lever to allow the engine to idle for a few minutes.
Put the switch to "O" (STOP) position.

Carburetor anti-freeze mechanism

In temperatures of 0-5°C with high humidity, ice may form in the carburetor. The unit has a ventilation hatch to supply warm air to the engine to prevent icing. The unit should be set to operate in anti-freeze mode when icing is possible.

WARNING: Using anti-freeze mode when temperatures have risen may cause starting or running problems. Always return the unit to normal operating mode when icing is not a danger.

HOW TO SWITCH BETWEEN OPERATING MODES

Turn off the engine switch.
Remove the air filter and choke knob.
Remove the cylinder cover.
Press the icing cap on the right side of the cylinder cover to remove it.
Adjust the icing cap so the 'snow' mark faces upwards, then return it to its original position.
Reassemble the cylinder cover and other parts.

8. Sawing

WARNING: Read "For Safe Operation" before starting. Always follow safety regulations. Use the chain saw only for cutting wood. Do not use it as a lever, for splitting objects, or lock it over fixed stands. Do not hitch unauthorized tools to the P.T.O.

Apply light pressure while running the engine at full throttle. If the saw chain is caught, use a wedge or lever to open the way; do not pull by force.

GUARD AGAINST KICKBACK

Check the chain brake operation before each usage. Run the saw at full throttle for 1-2 seconds and push the front hand guard forward. The chain should stop immediately. If it does not stop, have the brake band and clutch drum replaced.

WARNING: Ensure the chain brake is checked and the chain is sharp to maintain kickback safety. Removal of safety devices, inadequate maintenance, or incorrect replacement of parts can increase the risk of injury.

FELLING A TREE

Decide the felling direction considering wind, lean, branches, and ease of job.
Clear the area and arrange a foothold and retreat path.
Make a notch cut one-third of the way into the tree on the felling side.
Make a felling cut from the opposite side, slightly higher than the bottom of the notch.

WARNING: Warn neighboring workers of the danger when felling a tree.

Bucking and Limbing

WARNING: Ensure your foothold. Do not stand on the log. Be alert to rolling logs, especially on slopes. Follow "For Safe Operation" instructions to avoid kickback.

Check the direction of bending force in the log before cutting. Finish cutting from the opposite side of the bending direction to prevent the guide bar from being caught.

A Log lying on the ground: Saw halfway, roll the log, 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 bottom.
Cutting Limb of Fallen Tree: Check limb bend direction. Make initial cut from the bent side and finish by sawing from the opposite side.
Pruning of Standing Tree: Cut up from the bottom, finish down from the top.

WARNING: Do not use unstable foothold or ladder. Do not overreach. Do not cut above shoulder height. Always use both hands to grip the saw.

9. Maintenance

WARNING: Before cleaning, inspecting, or repairing, ensure the engine is stopped and cool. Disconnect the spark plug.

MAINTENANCE AFTER EACH USE

Air filter: Remove dust by tapping. For stubborn dirt, split the cleaner, brush with gasoline, or blow with compressed air from the inside. Ensure halves click when assembling.
Oiling port: Dismount the guide bar and check the oiling port for clogging.
Guide bar: Remove sawdust from the bar groove and oiling port. Grease the nose sprocket.

NOTE: When installing the main filter, ensure grooves fit projections on the cylinder cover.

PERIODICAL SERVICE POINTS

1. Cylinder fins: Clean periodically to prevent overheating. Ensure wires and grommets are correctly positioned when installing the cylinder cover.
2. Fuel filter: Remove with a wire hook, wash with gasoline, or replace if needed. Pinch the suction pipe end when removing/assembling. Avoid getting filter fibers or dust into the suction pipe.
3. Oil tank: Remove oil filter with a wire hook, clean in gasoline. Ensure filter is placed correctly when reassembling. Clean dirt in the tank.
4. Spark plug: Clean electrodes with a wire brush and reset the gap to 0.65 mm.
5. Sprocket: Check for cracks and wear. Replace if obviously worn. Do not fit a new chain on a worn sprocket, or a worn chain on a new sprocket.

10. Maintenance of Saw Chain and Guide Bar

SAW CHAIN

WARNING: Keep cutters sharp for smooth and safe operation.

Sharpen cutters when sawdust becomes powder-like, extra force is needed, the cut is not straight, vibration increases, or fuel consumption increases.

Cutter setting standards:

WARNING: Wear safety gloves. Ensure the saw chain is held securely and the engine is stopped before filing. Use a round file of proper size (5/32 in. for 91VG chain).

File straight forward, keeping the file position as illustrated. After filing each cutter, check and file the depth gauge to the proper level.

WARNING: Round off the front edge of the depth gauge to reduce kickback risk.

GUIDE BAR

Reverse the bar occasionally to prevent partial wear.
Ensure the bar rail is square. Check for wear by applying a ruler to the bar and the outside of a cutter. If a gap is observed, the bar rail is normal. Otherwise, the bar rail is worn and needs correction or replacement.

11. Troubleshooting Guide

Case 1. Starting failure:

Check if the icing prevention system is working.
Check fuel for water or substandard mixture: Replace with proper fuel.
Check for engine flooding: Remove and dry the spark plug, then pull the starter again with no choke.
Check the spark: Replace with a new plug.

Case 2. Lack of power/Poor acceleration/Rough idling:

Check fuel for water or substandard mixture: Replace with proper fuel.
Check air filter and fuel filter for clogging: Clean.
Check carburetor for inadequate adjustment: Readjust speed needles.

Case 3. Oil does not come out:

Check oil for substandard quality: Replace.
Check oil passage and ports for clogging: Clean.

If your unit needs further service, consult your local service shop.

12. Storage

Empty the fuel tank and run the engine out of fuel.
Empty the oil tank.
Clean the entire unit.
Store the unit in a dry place out of the reach of children.

13. Parts list

CHAINSAWS G3800AVS

NOTE:

Use KOMATSU ZENOAH genuine parts for repair/replacement.
KOMATSU ZENOAH does not warrant machines damaged by non-specified parts.
When ordering parts, check model and serial numbers against the parts list.
Parts descriptions may change due to improvements.
Parts will be supplied for seven (7) years after the machine is discontinued. Some parts may have extended availability.

APPLICABLE SERIAL NUMBERS: 001881 and up

Date: Jun. 2000

Diagrams of POWER UNIT, CARBURETOR COMPONENTS, and ACCESSORIES are provided with detailed part numbers and descriptions.

1-YEAR LIMITED WARRANTY

RedMax CHAINSAW MODEL G3800AVS

EMISSION-RELATED PARTS: KOMATSU ZENOAH AMERICA INC. will repair or replace, free of charge, any part found defective in material or workmanship for two (2) years from the date of original delivery. Emission-related parts include the carburetor assembly, coil assembly, rotor, spark plug, air filter, fuel filter, intake manifold, and gaskets.

ALL OTHER PARTS: For home use, the company will repair or replace, free of charge, any part found defective in material or workmanship for one (1) year from the date of original delivery. For other uses, this warranty is ninety (90) days.

The purchaser is responsible for transportation costs to and from the RedMax dealer. Diagnostic labor leading to the determination of a defective warranted part is free of charge if performed at the RedMax dealer.

The purchaser is responsible for required maintenance as defined by the manufacturer.

Parts not scheduled for replacement as required maintenance are warranted for the warranty period. Parts scheduled for replacement are warranted up to the first scheduled replacement point.

Equivalent replacement parts may be used for non-warranty maintenance or repairs without reducing the warranty obligation.

The company is liable for damages to other engine components caused by the failure of a warranted part.

Warranty does not apply to: Negligence in following instructions, accidental mishandling, alteration, abuse, improper lubrication, use of non-specified parts or accessories, or causes beyond the company's control. It also does not cover parts replaced due to normal wear or changes in appearance.

Implied warranties (merchantability and fitness for a particular purpose) are limited to one (1) year for home use (90 days for other use).

Liabilities for incidental or consequential damage are excluded.

This warranty gives you specific legal rights, which may vary by state.

For information about the nearest service center, call KOMATSU ZENOAH AMERICA INC. at (770)-381-5147.

IMPORTANT: Fill out and send the warranty registration card within seven (7) days of purchase.

KOMATSU ZENOAH AMERICA INC.
4344 Shackleford Road Suite 500
Norcross, Georgia 30093

Garantie limitée à 1 ans (French Translation)

Pièces en rapport avec les émissions de gaz d'échappement: KOMATSU ZENOAH AMERICA INC. réparera ou remplacera gratuitement toute pièce défectueuse pendant deux (2) ans à compter de la date de livraison initiale. Ces pièces incluent l'assemblage carburateur, l'assemblage bobine, le rotor, la bougie, le filtre à air, le filtre à carburant, la tubulure d'admission et les joints.

Toutes autres pièces: Pour usage privé, la société réparera ou remplacera gratuitement toute pièce défectueuse pendant un (1) an à compter de la date de livraison initiale. Pour toute autre utilisation, la garantie est de quatre-vingt-dix (90) jours.

L'acheteur est responsable des coûts de transport. Le diagnostic des pièces défectueuses est gratuit s'il est effectué chez le revendeur RedMax.

L'acheteur est responsable de l'entretien obligatoire.

Les pièces non soumises à remplacement périodique sont garanties pour la période de garantie. Les pièces soumises à remplacement sont garanties jusqu'à leur premier remplacement prévu.

Des pièces de rechange équivalentes peuvent être utilisées pour l'entretien hors garantie.

La société est responsable des dommages aux autres composants du moteur causés par la défaillance de pièces garanties.

La garantie ne s'applique pas aux unités endommagées par: négligence, mauvaise manipulation, modification, abus, lubrification incorrecte, utilisation de pièces non spécifiées, ou causes hors du contrôle de la société. Elle ne couvre pas non plus les pièces remplacées en raison de l'usure normale.

Garanties implicites (négociabilité et aptitude à un usage particulier) sont limitées à un (1) an pour usage privé (90 jours pour autre usage).

Les responsabilités pour dommages consécutifs ou incidents sont exclues.

Cette garantie vous donne des droits juridiques spécifiques.

Pour le centre de service le plus proche, appelez KOMATSU ZENOAH AMERICA INC. au (770)-381-5147.

Note importante: Remplissez et envoyez la carte d'enregistrement de garantie sous sept (7) jours.