Zenoah G455AVS User Manual

The engine exhaust from this product

contains chemicals known to the State

of California to cause cancer, birth

defects or other reproductive harm.

WARNING

OWNER/OPERATOR MANUAL

CHAINSAWS

2812-93112 (901)

G455AVS



IMPORTANT:
Before operating your RedMax product,
read this manual carefully and completely.

Thank you for choosing our RedMax® chain saw.
This manual will provide you with full understanding of the necessary
instructions for assembly, operation and maintenance of the
equipment.
Please read it carefully before starting operation.
For continued safe and reliable operation, use ONLY original
RedMax parts and accessories, Adhere to all notes and warnings.

CONTENTS

1. For Safe Operation································································· 2

2. Installing Guide Bar and Saw Chain ···································· 4

3. Fuel and Chain Oil ································································· 5

4. Operating Engine··································································· 6

5. Sawing ·················································································· 10

6. Maintenance ········································································· 12

7. Maintenance of Saw Chain and Guide Bar························ 14

8. Troubleshooting Guide························································ 17

9. Specifications······································································· 18

10. Parts List··············································································· 19

1. For Safe Operation

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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.

3. Always use caution when handling fuel.
Wipe up all spills and then move the
chain saw at least ten(10) feet(three(3)
m) from the fueling point before starting
the engine.

3a) Eliminate all sources of sparks or

flame (ie. smoking, open flames, or
work that can cause sparks) in the
areas where fuel is mixed, poured, or
stored.

3b)Do not smoke while handling fuel or

while operating the chain saw.

4. Do not allow other persons to be near
the chain saw when starting the engine
or cutting a wood. Keep bystanders and
animals out of the work area. Children,
pets, and bystanders should be a
minimum of thirty(30) feet away when
you start or operate the chain saw.

5. Never start cutting until you have a clear
work area, secure footing, and planned
retreat path from the falling tree.

6. Always hold the chain saw firmly with
both hands when the engine is running.
Use a firm grip with thumb and fingers
encircling the chain saw handles.

7. Keep all parts of your body away from
the saw chain when the engine is
running.

8. Before you start the engine, make sure
the saw chain is not contacting anything.

9. Always carry the chain saw with the
engine stopped, the guide bar and saw
chain to the rear, and the muffler away
from your body.

10. Always inspect the chain saw before
each use for worn, Ioose, or changed
parts. Never operate a chain saw that is
damaged, improperly adjusted, or is not
completely and securely assembled. Be
sure that the saw chain stops moving
when the throttle control trigger is
released.

11. All chain saw service, other than the
items listed in the Operator’s Manual,
should be performed by competent chain
saw service personnel. (e.g., if improper
tools are used to remove the flywheel, or
if an improper tool is used to hold the
flywheel in order to remove the clutch,
structural damage to the flywheel could
occur which could subsequently cause
the flywheel to disintegrate).

12. Always shut off the engine before setting
it down.

13. Use extreme caution when cutting small
size brush and saplings because slender
material may catch the saw chain and be
whipped toward you or pull you off
balance.

14. When cutting a limb that is under
tension, be alert for spring back so that
you will not be struck when the tension in
the wood fibers is released.

15. Keep the handles dry, clean and free of
oil or fuel mixture.

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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.

18. Guard against kickback. Kickback is the
upward motion of the guide bar which
occurs when the saw chain at the nose
of the guide bar contacts an object.
Kickback can lead to dangerous loss of
control of the chain saw.

19. When transporting your chain saw, make
sure the appropriate guide bar scabbard
is in place.

20. This chain saw is equipped with a spark
arrester built-in muffler. Periodically
check the arrester to keep it in good
order.

KICKBACK SAFETY PRECAUTIONS FOR

CHAIN SAW USERS

– WARNING –

● Kickback may occur when the nose or tip of the guide bar touches an object, or when the
wood closes in and pinches the saw chain in the cut. Tip contact in some cases may
cause a lightning fast reverse reaction, kicking the guide bar up and back towards the
operator. Pinching the saw chain along the top of the guide bar may push the guide bar
rapidly back towards the operator. Either of these reactions may cause you to lose
control of the saw which could result in serious personal injury.

● Do not rely exclusively on the safety devices built into your saw. As a chain saw user you
should take several steps to keep cutting jobs free from accident or injury.

(1) With a basic understanding of kickback you can reduce or eliminate the element of

surprise. Sudden surprise contributes to accidents.

(2) Keep a good grip on the saw with both hands, the right hand on the rear handle, and

the left hand on the front handle, when the engine is running. Use a firm grip with
thumbs and fingers encircling the chain saw handles. A firm grip will help you reduce
kickback and maintain control of the saw. Don’t let go.

(3) Make certain that the area in which you’re cutting is free from obstructions. Do not let

the nose of the guide bar contact a log, branch, or any other obstruction which could

be hit while you are operating the saw.
(4) Cut at high engine speeds.
(5) Do not overreach or cut above shoulder height.
(6) Follow manufacturers sharpening and maintenance instructions for saw chain.
(7) Only use replacement bars and chains specified by the manufacturer or the

equivalent.

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

1. Loosen the nuts and remove the chain cover.

2. Install the attached spike to the power unit.

3. Gear the chain to the sprocket and, while fitting
the saw chain around the guide bar, mount the
guide bar to the power unit, Then adjust the
position of chain tensioner nut on the chain
cover to the lower hole of guide bar.

Note:

Pay attention to the correct direction of the saw
chain.

4. Fit the chain cover to the power unit and fasten
the nuts to finger tightness.

5. 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.

6. Tighten the nuts securely with the bar tip held
up. Then check the chain for smooth rotation
and proper tension while moving it by hand. If
necessary, readjust with the chain cover loose.

7. Tighten the 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 itself and the guide
bar.

2. Installing Guide Bar and Saw Chain

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■ FUEL

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.

RECOMMENDED MIXING RATIO

GASOLINE 32 : OIL 1

Exhaust emission are controlled by the
fundamental engine parameters and
components (eq., carburation, ignition
timing and port timing) without addition
of any major hardware or the introduction
of an inert material during combustion.
These engines are certified to operate on
un-leaded gasoline.

The fuel is highly flammable. Do not
smoke or bring any flame or sparks near
fuel.

• HOW TO MIX FUEL

1. Measure out the quantities of gasoline
and oil to be mixed.

2. Put some of the gasoline into a clean,
approved fuel container.

3. Pour in all of the oil and agitate well.

4. Pour in the rest of gasoline and agitate
again for at least one minute.

5. Put a clear indication on the outside of the
container to avoid mixing up with gasoline
or other containers.

WARNING !

3. Fuel and Chain oil

FOR YOUR ENGINE LIFE, AVOID;

1. FUEL WITH NO OIL(RAW GASOLINE) –
It will cause severe damage to the engine
inner parts very quickly.

2. GASOHOL – It can cause deterioration of
rubber and/or plastic parts and disruption
of engine lubrication.

3. OIL FOR 4-CYCLE ENGINE USE or
WATER COOLED 2-CYCLE ENGINE
USE – It can cause spark plug fouling,
exhaust port blocking, or piston ring
sticking.

■ 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 that
can cause damage to the oil pump.

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Starting engine

1. Fill fuel and chain oil tanks respectively, and
tighten the caps securely.

2. Tilt the switch lever upward.

3. While holding the throttle lever together with the
throttle interlock, push in the side latch and
release the throttle lever to hold it at the starting
position.

4. Pull out the choke knob to the closed position.

Note:

When restarting immediately after stopping the
engine, Ieave the choke knob at the open
position.

4. Operating Engine

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5. While holding the saw unit securely on the
ground, pull the starter rope vigorously.

Do not start the engine while hanging the
chain saw with a hand. The saw chain may
touch your body. It's very dangerous.

6. When engine has ignited first, push in the choke
knob and pull the starter again to start the
engine.

7. Allow the engine to warm up with the throttle
lever pulled slightly.

Keep clear of the saw chain as it will start
rotating upon starting of engine.

Checking oil supply

After starting the engine, run the chain at medium
speed and see if chain oil is scattered oft as shown
in the figure.
The chain oil flow can be changed by inserting a
screwdriver in the hole on bottom of the clutch
side. Adjust according to your work conditions.

Note:

The oil tank should become nearly empty by the
time fuel is used up. Be sure to refill the oil tank
every time when refueling the saw.

Adjusting carburetor

The carburetor has been adjusted at the factory.
Should your unit need readjustment due to the
changes in altitude or operating conditions, please
let your skillful dealer make the adjustment. A
wrong adjustment may cause damage to your unit.
If you have to make the adjustment yourself,
please carefully follow the procedure below.

Note :

Be sure to adjust the carburetor with the bar
chain attach ed.

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