RedMax GZ3500T Operator`s manual

GZ3500T
115 31 28-10 (909)
2009-09
U
S
OWNER / OPERATOR MANUAL
F
R
CHAINSAW
E
S
GZ3500T
WARNING
WARNING
Before using our
product, please read this
manual carefully to
understand the proper use
of your unit.
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 :
800001 and up
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GZ3500T
SAFETY FIRST
Instructions contained in warnings within this manual marked with a symbol concern 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.
WARNINGS IN THE MANUAL
WARNING
This mark indicates instructions, which must be followed in order to prevent accidents, which could lead to serious
bodily injury or death.
IMPORTANT
This mark indicates instructions, which must be followed, or it leads to mechanical failure, breakdown, or damage.
NOTE
This mark indicates hints or directions useful in the use of the product.
SYMBOLS IN THE OPERATOR’S MANUAL
Read operator's instruction
book before operating this
machine.
Use the chain saw
with two hands.
Read, understand and
follow all warnings.
Never touch hot surface.
Wear head, eye and ear
protection.
Warning! Danger of
kickback.
Use appropriate protections
for foot-leg and hand-arm.
This saw is for trained tree
service operators only.
Contents
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
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Parts location ............................................................................ 3
Specifications ........................................................................... 3
For safe operation ..................................................................... 4
Symbols on the machine .......................................................... 7
Installing guide bar and saw chain .......................................... 8
Fuel and chain oil ..................................................................... 9
Operation ................................................................................ 11
Sawing .................................................................................... 12
Maintenance ........................................................................... 14
Maintenance of saw chain and guide bar .............................. 15
Troubleshooting guide ............................................................ 16
Disposal .................................................................................. 16
GZ3500T
1. Parts location
(1)
(7)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
(5)
(6)
(2)
(3)
(13)
(12)
(10)
(9)
Front guard
Starter knob
Air cleaner cover
Choke knob
Throttle interlock
Right handle
Throttle lever
Engine switch
Fuel tank
Oil tank
Left handle
Saw chain
Guide bar
Priming bulb
U
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(11)
(8)
(4)
(14)
2. Specifications
■ GZ3500T
Power unit :
Displacement ·············································································································· 2.15(35.2) cu-in(cm3)
Fuel ··································································································· Mixture(Gasoline 50 : Two-cycle oil 1)
················································································································· (when using RedMax genuine oil)
Fuel tank capacity ············································································································· 8.1(0.24) fl.oz( )
Chain oil ·················································································································· Motor oil SAE #10W-30
Oil tank capacity ············································································································· 5.70(0.17) fl.oz( )
Carburetor ····································································································· Diaphragm type (Walbro WT)
lgnition system ··································································································································· Digital
Spark plug ······························································································································ NGK CHR7H
Oil feeding system ··········································································································· Mechanical pump
Power ·························································································································· 1.45/10,000 (kw/rpm)
Max speed ································································································································ 12,500 (rpm)
Idle speed ··································································································································· 2,900 (rpm)
Sprocket : Pitch – No. of teeth ······················································································ .38in(9.53mm) – 7T
Dimensions : L – W – H ····································································· 11.6(290)x9.2(230)x9.0(225) in(mm)
Dry weight : Power unit only ································································································ 7.3(3.3) lbs(kg)
Cutting attachment :
Guide bar : Type – Size ···································································· Sprocket nose – 12(30), 14(35) in(cm)
Saw chain : Type – Pitch – Gauge ··································· Oregon 91VG – .3/8(9.53) – 0.050(1.27) in(mm)
Specifications are subject to change without notice.
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GZ3500T
3. For safe operation
•
•
•
WARNING
This chainsaw has been especially designed for tree
maintenance and should therefore only be used by
trained operators when working up in the trees.
Under no circumstances may the design of the machine be modified without the permission of the manufacturer. Always use genuine accessories. Non-authorized modifications and/or accessories can result in
serious personal injury or the death of the operator or
others.
A chain saw is a dangerous tool if used carelessly or
incorrectly and can cause serious, even fatal injuries.
It is very important that you read and understand the
contents of this operator’s manual.
7. All chain saw service, other than the
items listed in the Owner’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.)
■ BASIC SAFETY RULES
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.
9. Never cut in high wind, bad weather,
when visibility is poor or in very high
or low temperatures.
8. Always shut off the engine before
setting it down.
10. Operate the chain saw only in well
ventilated areas. Never start or run
the engine inside a closed room or
building and potentially explosive atmosphere. Exhaust fumes contain
dangerous carbon monoxide.
2. Use safety footwear, snug fitting
clothing and eye, hearing and head
protection devices.
Use vibration reducing gloves.
Most chain saw accidents happen
when the chain touches the operator.
Personal protective equipment cannot eliminate the risk of injury but it
will reduce the degree of injury.
3. Do not allow other person to be near
the chain saw when starting or cutting. Keep bystanders and animals
out of the work area. Children, pets
and bystanders should be a minimum
of 10 m away when you start or operate the chain saw.
4. Never start cutting until you have a
clear work area, secure footing, and
a planned retreat path from the falling tree.
5. Always hold the chain saw firmly with
both hands when the chain saw is
running. Use a firm grip with thumb
and fingers encircling the chain saw
handles.
6. Keep all parts of your body away from
the saw chain when the engine is running.
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11. Never touch the cover, guide bar, saw
chain or nut with bare hands while
the engine is in operation or immediately after shutting down the engine.
Doing so could result in serious burns
(2)
because of high temperature.
(3)
(1)
(1) guide bar
(2) saw chain
(3) guide bar securing nut
GZ3500T
■ BEFORE USE
1. Keep the saw chain sharp and the
anti-vibration system, well maintained. A dull chain will increase cutting time, and pressing a dull chain
through wood will increase the vibrations transmitted to your hands. A
saw with loose components or with
damaged or worn AV buffers will also
tend to have higher vibration levels.
2. Before you start the engine, make
sure the saw chain is not contacting
anything.
■ FUEL SAFETY
1. Always use caution when handling
fuel. Wipe up all spills and then move
the chain saw at least 10 ft(3 m) from
the fueling point before starting the
engine.
2. Eliminate all sources of sparks or
flame (i.e. smoking, open flames, or
work that can cause sparks) in the
areas where fuel is mixed, poured,
or stored.
3. Do not smoke while handling fuel or
while operating the chain saw.
3. Always inspect the chain saw before
each use for worn, Ioose, or damaged 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.
■ CUTTING
1. 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.
2. 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.
3. Always check the tree for dead
branches which could fall during the
felling operation.
4. Do not operate the chain saw in a tree
unless specially trained to do so.
4. Keep the handles dry, clean and free
of oil or fuel mixture.
5. Always store fuel in an approved container designed for that purpose.
■ STORAGE
1. Always store the chain saw and fuel
so that there is no risk of leakages or
fumes coming into contact with
sparks or naked flames from electrical equipment, electric motors, relays/switches, boilers and the like.
2. For longer periods of storage or for
transport of the chain saw, the fuel
and chain oil tanks should be emptied.
3. When the chain saw is in storage
make sure the appropriate guide bar
scabbard is in place in order to prevent accidental contact with the
sharp chain. Even a non-moving
chain can cause serious cuts to yourself or persons you bump into with
an exposed chain.
5. Never use a chain saw by holding it
with one hand. A chain saw is not safe
if controlled with one hand; you can
cut yourself. Always have a secure,
firm grip around the handles with both
hands.
■ TRANSPORT
1. 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.
2. When transporting your chain saw,
make sure the appropriate guide bar
scabbard is in place.
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U
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GZ3500T
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 Iose 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.
FOR PROTECTING YOUR BODY FROM VIBRATION
If you continue to use high-vibration tools these
symptoms will probably get worse, for example:
• The numbness in your hands could become permanent and you won’t be able to feel things at all;
• You will have difficulty picking up small objects such
as screws or nails;
• The white finger syndrome could occur more frequently and affect more of your fingers.
1.
2.
3.
4.
5.
6.
(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.
(3) Make certain that the area in which
you are 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. (full
throttle)
(5) Do not overreach or cut above shoulder height.
(6) If you have to cut branches or the like
that are above shoulder height, a
working platform or scaffold is recommended.
(7) Follow the manufacturer’s sharpening
and maintenance instructions for the
saw chain.
(8) Only use replacement bars and
chains specified by the manufacturer.
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7.
•
•
Please observe the following, in order to protect the
health of your body.
Always use the right tool for each job (to do the job
more quickly and expose you to less hand-arm vibration).
Check tools before using them to make sure they
have been properly maintained and repaired to avoid
increased vibration caused by faults or general wear.
Make sure cutting tools are kept sharp so that they
remain efficient.
Reduce the amount of time you use a tool at one
time, by doing other jobs in between.
Avoid gripping or forcing a tool or workpiece more
than you have to.
Store tools so that they do not have very cold handles
when used.
Encourage good blood circulation by:
keeping warm and dry (when necessary, wear
gloves, a hat, waterproofs and use heating pads if
available);
give up or cut down on smoking because smoking
reduces blood flow; massage and exercise your fingers to increase blood circulation.
DISPOSAL
When disposing of your machine, fuel or oil in the
machine, be sure to follow your local regulations.
GZ3500T
4. Symbols on the Machine
WARNING
For safe operation and maintenance, symbols are carved or placed on the machine.
According to these indications, please be careful not to make any mistake.
U
S
The port to refuel “MIX GASOLINE”
Position: Recoil case (in front of the fuel cap)
The port to fill chain oil
Position: Recoil case (under the oil cap)
Setting the switch to the “O” position, stops the engine immediately.
Position: Right side of the rear handle
Starting the engine. If you turn the choke knob to the point of the arrow,
you can set the starting mode as follows:
Position: Upper-right of the air cleaner cover
The screw under the “H” stamp is The High-speed fuel mixture adjustment screw.
The screw under the “L” stamp is The Slow-speed fuel mixture adjustment screw.
The screw at the left of the “T” stamp is the Idle speed adjustment screw.
Position: Left side of the rear handle
Shows the directions that the chain brake is released (white arrow) and
brake is activated (black arrow).
Position: Front of the chain cover
If you turn the rod with screwdriver follow the arrow to the " " position,
the chain oil flows more, and if you turn to the " " position, oil flow is
less. (Standard width: 90°)
Position: Bottom of the power unit
■ EMISSION CONTROL
An emission control label is located on the engine.
IMPORTANT EMISSIONS INFORMATION
THIS ENGINE MEETS TO 2008*1 U.S. EPA AND 2008*1
CALIFORNIA EXH AND EVP EMISSION REGULATIONS
FOR SI SORE's. COMPLIANCE PERIOD : CATEGORY A
ENGINE FAMILY : 8HQZS.0444BJ*2 DISPL.: 35 cc
EMISSION CONTROL SYSTEM : EXH;EM
REFER TO OWNER'S MANUAL FOR MAINTENANCE, SPECIFICATIONS AND ADJUSTMENTS.
MANUFACTURED:
USE JASO FD OR ISO L-EGD GRADE 50:1 OIL.
*1: The year will be changed every year of manufacturing.
*2: The initial number will be changed every year of
manufacturing.
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GZ3500T
5. Installing Guide Bar and Saw Chain
A standard saw unit package contains the items as illustrated.
Bar protector
Power unit
Plug wrench
Guide bar
Saw chain
Screwdriver for
carburetor adjustment
Open the box and install the guide bar and the saw
chain on the power unit as follows:
WARNING
5. While holding up the tip of the bar, adjust the chain
tension by turning the tensioner screw until the tie
straps of chain just touch the bottom side of the bar
rail.
The saw chain has very sharp edges. Use thick protective gloves for safety.
1. Pull the hand guard towards the front handle to check
that the chain brake is not engaged.
2. Loosen the nuts and remove the chain cover.
3. Mount the guide bar then fit the saw chain around
the bar and sprocket.
Chain tensioner
nut
Loosen
Tighten
Tensioner screw
6. Tighten the nuts securely with the bar tip held up
(11.8-14.7 N.m./120-150 kg-cm). Then check the
chain for smooth rotation and proper tension while
moving it by hand. If necessary, readjust with the
chain cover loose.
Chain cover
NOTE
Pay attention to the correct direction of the saw chain.
Tighten
Moving direction
7. Tighten the tensioner screw.
WARNING
4. Fit the chain tensioner nut into the lower hole of the
guide bar, then install the chain cover, and fasten
the mounting nut finger tight.
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A new chain will stretch in 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.
GZ3500T
6. Fuel and Chain Oil
WARNING
FUEL
WARNING
• Gasoline is very flammable. Avoid smoking or
bringing any flame or sparks near fuel. Make sure
to stop the engine and allow it cool before refueling the unit. Select outdoor bare ground for fueling and move at least 10 ft (3 m) away from the
fueling point before starting the engine.
• Gasoline with an octane rating lower than 89 will
greatly increase the engines operating temperature.
Low octane gasoline will cause detonation (knock)
resulting in piston seizures and major internal engine
components damage.
• Poor quality gasolines or oils may damage sealing
rings, fuel lines or fuel tank of the engine.
NOTE
• Failures caused by operating engines on gasoline
with octane rating lower than 89 are not covered by
the RedMax Two-Stroke engine warranty.
WARNING
■ GASOLINE REQUIREMENTS
• All 2-Stroke RedMax Products are powered by
RedMax Professional-Commercial Duty, Hi-Performance, Hi-RPM, Air Cooled 2-Stroke engines.
RedMax – Hi-Performance 2-stroke engines produce
higher HP outputs as compared to standard Home
Owner Duty or Light Commercial Duty production
engines offered by most manufacturers.
• 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.
• The RedMax Engines are registered and certified with
CARB (California Air Resources Board) and EPA (Environmental Protection Agency) to operate on CLEAN
Mid-grade 89 octane or Premium, unleaded (leadfree) gasoline and RedMax Air-Cooled "Max Life",
Synthetic blend Premium two-stroke engine oil mixed
at 50:1 ratio.
• Unleaded gasoline is recommended to reduce the
contamination of the air for the sake of your health
and the environment.
• This Hi-Performance Air Cooled 2-stroke Engine requires the use of Minimum 89 Octane [R+M] (Mid
2
grade or Premium) clean gasoline.
Gasoline may contain maximum of 10% Ethanol (grain
alcohol) or up to 15% MTBE (Methyl tertiary-butyl
ether). Gasoline containing Methanol (Wood Alcohol)
is NOT approved.
• Alternative Fuels (Not Gasoline)
Alternative fuels, such as E-15 (15% ethanol), E20 (20% ethanol), E-85 (85% ethanol) are NOT classified as gasoline and are NOT approved for use
in RedMax 2-stroke gasoline engines. Use of alternative fuels will cause major engine performance and durability problems such as: improper
clutch engagements, overheating, vapor lock,
power loss, lubrication deficiency, deterioration
of fuel lines, gaskets and internal carburetor components, etc... Alternative fuels cause high moisture absorption into the fuel/oil mixture leading to
oil and fuel separation.
■ OIL REQUIREMENTS
• Use only RedMax "Max Life", Synthetic blend Premium Air- Cooled two-stroke engine oil or oil certified
to ISO-L-EGD (ISO/CD1378) standard AND one that
is JASO-FD registered. RedMax Air-Cooled "Max
Life", Synthetic blend Premium two stroke engine oil
and ISO-L-EGD (ISO/CD1378) AND JASO-FD oils are
fully compatible with gasoline's containing 10% Ethanol. RedMax Air-Cooled "Max Life", Synthetic blend
Premium two stroke engine oil and ISO-L-EGD (ISO/
CD1378) AND JASO-FD oils are Universal and
should be mixed at 50:1 ratio for all 2 stroke air cooled
engines sold in the past regardless of mixing ratios
specified in those manuals.
• If the oil is registered with JASO, the JASO Logo with
FD and registration number will be displayed on the
container. The highest JASO rating is "FD", which
equals the ISO-L-EGD rating. Lower ratings are "FC",
"FB", and "FA".
NOTE
• IF octane rating of the Mid Grade gasoline in your
area is lower than 89 Octane use Premium Unleaded
Gasoline. The majority of all 2-stroke engine manufacturers in the USA and Canada recommend using
gasoline with 89 Octane or higher.
US-9
U
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GZ3500T
• Engine problems due to inadequate lubrication
caused by failure to use ISO-L-EGD certified and
JASO FD registered oil such as "MaxLife", RedMax
Synthetic blend Premium 2-stroke oil WILL VOID THE
REDMAX TWO-STROKE ENGINE WARRANTY.
WARNING
• Do not use NMMA (National Marine Manufacturers
Association), BIA (Boating Industry Association), and
TCW (two cycle water cooled) oils designed for
MoPeds or Outboard, water cooled Marine Engines.
Do not use API (American Petroleum Institute), TC
(Two Cycle) labeled oils. The API-TC test standard
has been discontinued by API in 1995 and it no longer
exists.
IMPORTANT
• Gasoline/Oil mixture Storage Recommendations
Store your gasoline or gasoline/oil mixture in a cool
dry area in a tightly sealed approved container to limit
the entry of moisture and additional air (oxygen). Moisture and air cause the development of varnish and
gum, making the fuel stale. Stored gasoline and gasoline/oil mixture ages and loses its octane rating and
volatility. Do not mix more gasoline/oil than you intend to use in 30 days, and 60 days when fuel stabilizer is added. RedMax Air-Cooled "Max Life" Synthetic blend Premium two-stroke engine oil "Contains fuel stabilizer" and will automatically extend
your gasoline/oil mixture life up to 60 days.
■ HOW TO MIX FUEL
RECOMMENDED MIXING RATIO
GASOLINE 50 : OIL 1
(when using RedMax Air-Cooled "Max Life")
avoid mixing up with gasoline or other containers that dont
contain oil.
6. Indicate the contents on outside of container for easy identification.
■ FUELING THE UNIT
1. Untwist and remove the fuel cap. Rest the cap on a
clean surface.
2. Put fuel into the fuel tank to 80% of the full capacity.
3. Fasten the fuel cap securely and wipe up any fuel
spillage around the unit.
WARNING
1. Select flat and bare ground for fueling.
2. Move at least 10 feet (3 meters) away from the
fueling point before starting the engine.
3. Stop the engine before refueling the unit. At that
time, be sure to sufficiently agitate the mixed
gasoline in the container.
■ FOR YOUR ENGINE LIFE, AVOID
1. FUEL WITH NO OIL (RAW GASOLINE) – It will cause
severe damage to the internal engine 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 – It can cause spark
plug fouling, exhaust port blocking, or piston ring seizure.
4. Mixed fuels which have been left unused for a period of one month or more may clog the carburetor
and result in the engine failing to operate properly.
5. In the case of storing the product for a long period of
time, clean the fuel tank after rendering it empty. Next,
Start the engine and run the carburetor dry residual
fuel.
6. In the case of scrapping the used mixed oil container,
scrap it only at an authorized depository site.
NOTE
• As for details of quality assurance, read the description in the section Limited Warranty carefully. Moreover, normal wear and change in product with no
functional influence are not covered by the warranty.
Also, be careful that, if the usage in the instruction
manual is not observed as to the mixed gasoline,
type of oil or fuel to be used. described therein, it
may not be covered by the warranty.
CHAIN OIL
WARNING
• Pay attention to agitation.
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 for 10seconds.
4. Pour in the rest of gasoline and agitate again for at least
one minute. As some oils may be difficult to agitate depending on oil ingredients, sufficient agitation is necessary. Be careful that, if the agitation is insufficient, there is
an increased danger of early piston seizure due to abnormally lean mixture.
5. Place a clear indication on the outside of the container to
US-10
• Use motor oil SAE #10W-30 all year round or SAE
#30 ~ #40 in summer and SAE #20 in winter.
NOTE
• Do not use wasted or regenerated oil that can cause damage to the oil pump.
GZ3500T
7. Operating the Engine
WARNING
It is very dangerous to run a chainsaw with mounts broken
or any missing parts.
Before starting engine, make sure that all the parts including bar and chain are installed properly.
■ STARTING THE ENGINE
Normal start
1. Fill fuel and chain oil tanks respectively, and tighten
the caps securely.
is very dangerous.
6. When engine has started, turn the choke knob to
the closed position and then pull the starter again to
run the engine.
7. Allow the engine to warm up with the throttle lever
pulled slightly.
■ CHECKING THE OIL SUPPLY
WARNING
Make sure the bar and the chain is in place 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.
Chain oil
Fuel
Chain oil
2. Continuously push the priming bulb until fuel comes
in the bulb. Then press additional 5 times.
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.
3. Set the switch to “I” position.
Chain oil flow adjusting
shaft
Switch
Rich
Throttle
interlock
Lean
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.
Throttle lever
4. Turn the choke knob to the closed position.
NOTE
The adjustment range of the discharge is 90°. Pay attention not to turn any further, as this may damage the
adjuster of the oil pump.
■ ADJUSTING THE CARBURETOR
Choke
closed
Open with
throttle lever
Choke
open
Idle adjusting
screw
NOTE
H needle
When restarting immediately after stopping hot engine, choke knob should be in the open position.
5. While holding the saw unit securely on the ground,
pull the starter rope using short strokes vigorously.
L needle
The carburetor on your unit has been factory adjusted,
but may require fine tuning due to a change in operating conditions.
Before adjusting the carburetor, make sure that the provided air/fuel filters are clean and fresh and the fuel properly mixed.
When adjusting, take the following steps:
WARNING
Do not start the engine while the chain saw hangs in
one hand. The saw chain may touch your body. This
NOTE
Be sure to adjust the carburetor with the bar chain attached.
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1. H and L needles are restricted within the number of
turns as shown below.
H needle : -1/4
L needle : -1/4
2. Start the engine and allow it to warm up in low speed
for a few minutes.
3. Turn the idle adjusting screw (T) counterclockwise
so that the saw chain does not turn. If the idling
speed is too slow, turn the screw clockwise.
4. Make a test cut and adjust the H needle for best
cutting power, not for maximum speed.
■ CHAIN BRAKE
The chain brake is a device which stops the chain instantaneously if the chain saw recoils due to kickback.
Normally, the brake is activated automatically by inertial
force. It can also be activated manually by pushing the
brake lever (left-hand guard) down toward the front.
When the brake operates, a yellow cone pops up from
the base of the brake lever.
WARNING
• When the brake operates, release the throttle lever
to slow down the engine speed. Continuous operation with the brake engaged will generate heat from
the clutch and may cause overheating or clutch failure.
• At machine inspection prior to each job, check the
operating condition of the brake following these
steps.
1. Start the engine and grasp the handle securely with
both hands.
2. Pulling the throttle lever to maintain the chain operation, push the brake lever (left-hand guard) down
toward the front using the back of your left hand.
3. When the brake operates and the chain is stopped,
release the throttle lever.
4. Release the brake.
Activate the brake
Release
Releasing the Brake
Pull the brake lever up and back toward the left-hand
handle until it clicks into place.
■ STOPPING THE ENGINE
1. Release the throttle lever to allow the engine to idle
for a few minutes.
2. Set the switch to the “O” (STOP) position.
Switch
8. Sawing
WARNING
•
Before proceeding to your job,
read the section “For Safe
Operation”. It is recommended
to first practice sawing small
logs. This also helps you get
accustomed to your unit.
•
The chain saw must only be
used for cutting wood. It is forbidden to cut other types of
material. Vibrations and kickback vary with different materials. Do not use the chain saw
as a lever for lifting, moving or
splitting objects. Do not lock it
over fixed stands. It is forbidden to hitch tools or applications to the PTO other than
those specified by the manufacturer.
• It is not necessary to force the saw into the cut. Apply only light pressure while running the engine at
full throttle.
• When the saw chain is caught in the cut, do not
attempt to pull it out by force, but use a wedge or a
lever to open the way.
■ GUARD AGAINST KICKBACK
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•
•
This saw is equipped with a chain
brake that will stop the chain in the
event of kickback if operating properly. You must check the chain brake
operation before each usage by running the saw at full the throttle for I 2 seconds and pushing the front
hand guard forward. The chain
should stop immediately with the
engine at full speed. If the chain is
slow to stop or does not stop, replace the brake band and clutch
drum before use.
It is extremely important that the
chain brake be checked for proper
operation before each use and that
the chain be sharp in order to maintain the kickback safety level of this
saw. Removal of the safety devices,
inadequate maintenance, or incorrect replacement of the bar or chain
may increase the risk ot serious personal injury due to kickback.
■ FELLING A TREE
A log lying on the ground
Saw down halfway, then roll the log over 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 the limbs of Fallen Tree
Felling direction
Notch cut
Felling cut
1. Decide the felling direction considering the wind,
lean of the tree, location of heavy branches, ease of
completing the task after felling and other factors.
2. While clearing the area around the tree, arrange a
good foothold and retreat path.
3. Make a notch cut one-third of the way into the tree
on the felling side.
4. Make a felling cut from the opposite side of the notch
and at a level slightly higher than the bottom of the
notch.
First check to which side the limb is bent. Then make
the initial cut from the bent side and finish by sawing
from the opposite side.
WARNING
Be alert to the springing back of a cut limb.
Pruning of Standing Tree
WARNING
When you fell a tree, be sure to warn neighboring workers of the danger.
Bucking and Limbing
WARNING
• Always ensure your foothold. Do not stand on the log.
• Be alert to the rolling over of a cut log. Especially when
working on a slope, stand on the uphill side of the
log.
• Follow the instructions in “For Safe Operation” to avoid
kickback of the saw.
Before starting work, check the direction of bending
force inside the log to be cut. Always finish cutting from
the opposite side of the bending direction to prevent
the guide bar from being caught in the cut.
Cut up from the bottom, finish down from the top.
WARNING
• Do not use an unstable foothold or ladder.
• Do not overreach.
• Do not cut above shoulder height.
• Always use both your hands to hold the saw.
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9. Maintenance
WARNING
WARNING
Before cleaning, the inspecting or repairing the unit, make sure
that engine has stopped and is cool. Disconnect the spark
plug to prevent accidental starting.
When installing the filter, do not pinch or fold the suction pipe.
3. Oil filter
1. With a wire hook, take out the oil filter from the feeding
port.
■ MAINTENANCE AFTER EACH USE
1. Air filter
Loosen the knob and remove the air cleaner cover. Take off the
filter elements and tap off attached sawdust. When they are
extremely dirty, shakewash with soapy water. Do not use gasoline. Dry them completely before reinstalling.
Oil filter
knob
air cleaner cover
2. Wash the filter with non-flammable solvent.
WARNING
filter elements
When installing the filter, do not pinch or fold the suction pipe.
2. Oiling port
Remove the guide bar and check the oiling port for clogging.
4. Spark plug
(0.24~0.28inch)
NGK
CMR7H
Oiling port
3. Guide bar
Clean the electrodes with a wire brush and reset the gap to
0.6 mm~0.7mm (0.24~0.28inch) as necessary.
When the guide bar is removed, remove sawdust in the bar
groove and the oiling port.
5. Sprocket
<Type : sprocket nose>
0.2inch (0.5mm)
Grease the nose sprocket from the feeding port on the tip of
the bar.
Grease port
Sprocket
Oiling port
Check for cracks and for excessive wear interfering with the
chain drive. If the wear is considerable, replace it with new
one. Never fit a new chain on a worn sprocket, or a worn chain
on a new sprocket.
4. Others
Check for fuel leakage and loose fasteners and damage to
major parts, especially handle joints and guide bar mounting.
If any defects are found, make sure to have them repaired before operating the saw again.
■ PERIODICAL SERVICE POINTS
1. Cylinder fins
1. Remove the starter case.
2. Remove sawdust between the
cylinder fins.
3. Clean the inside of the starter case.
2. Fuel filter
6. Way of the cooling air
WARNING
• The engine metal parts can burn your skin. Never touch the
cylinder, muffler or ignition plug etc. during operation or right
after stopping the engine.
• Before starting the engine, check around the muffler and
remove sawdust. If you do not, it will cause the overheating.
Keep clean area around the muffler.
This engine is air-cooled. Dirt clogging between the inlet port
of the cooling air and cylinder fins will cause overheating of the
engine. Periodically check and clean the cylinder fins after removing the air cleaner and the cylinder cover.
(a) Using a wire hook, pull out the filter from the filter port.
inlet port of the cooling air
Fuel filter
(b) If dirty, replace filter.
Replace with new one if clogged with dirt.
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IMPORTANT
When installing the cylinder cover, make sure that switch wires
and grommets are positioned correctly in place.
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7. Muffler
WARNING
Regularly inspect the muffler for loose fastening screws,
damage and rust. If you find that exhaust gas leaking remove the muffler. Remove carbon from exhaust port using a
piece of wood or plastic. Make sure no carbon falls inside of
the engine.
1. Removing the underside guard
Confirm that the chain break is released and remove the
chain cover. Next, remove the screws of the recoil case and
the screws of the chain catcher. Draw the underside guard
out in the horizontal direction and remove it from the pin of
the engine case in the downward direction.
Chain cover
Underside guard
Chain catcher
2. Removing the muffler
Remove the screws and nuts attaching the muffler and remove the muffler.
Muffler
3. Removing the spark arrester
Lift up the claw of the guide muffler to take it off in the upward direction, and remove the arrester.
Guide muffler
Spark arrester
WARNING
Right after stopping the engine, do not touch the muffler
with one's bare hands. It will cause to burn your hands.
If carbon clogs between the muffler, it will cause poor-output
and the trouble in starting. After each 100 hours, check and
clean inside the muffler.
8. Spark arrester
The spark arrester is installed to prevent that burnt carbon is
discharged from the muffler tail. Regularly clean it with a wire
brush or a similar tool to remove the carbon.
NOTE
Never use a muffler if the spark arrester is missing or defective.
9. Exhaust port
Remove the muffler, insert a screwdriver into the vent, and wipe
away any carbon buildup after every 100 hours of use. Wipe
away any carbon buildup on the muffler exhaust vent and the
clean cylinder exhaust port at the same time.
10. Maintenance of Saw Chain and Guide Bar
■ Saw Chain
WARNING
Place the file on the cutter and push straight forward.
Keep the file position as illustrated.
It is very important for smooth and safe operation to
always keep the cutters sharp.
The cutters need to be sharpened when:
• Sawdust becomes powder-like.
• You need extra force to saw in.
• The cut path does not go straight.
• Vibration increases.
• Fuel consumption increases.
Cutter setting standards:
WARNING
Be sure to wear safety gloves.
Before filing:
• Make sure the saw chain is held securely.
• Make sure the engine is stopped.
• Use a round file of proper size for the chain.
Chain type:
91VG
File size:
5/32 in (4.0 mm)
After each cutter has been filed, check the depth gauge
and file it to the proper level as illustrated.
Appropriate gauge checker
Make the shoulder round
.025″ (0.64 mm)
Depth gauge standard
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WARNING
Be sure to round off the front edge to reduce the
chance of kickback or tie-strap breakage.
side of a cutter. If a gap is observed between them,
the rail is normal. Otherwise, the bar rail is worn.
Such a bar needs to be corrected or replaced.
Ruler
Make sure every cutter has the same length and edge
angles as illustrated.
Gap
Cutter length
No gap
Filing angle
Chain tilts
Side plate angle
Top plate cutting angle
■ Guide Bar
• Reverse the bar occasionally to prevent partial wear.
• The bar rail should always be square. Check for wear
of the bar rail. Apply a ruler to the bar and the out
WARNING:
This saw is equipped with one of the following low
kickback bar/chain combinations:
RedMax Part Number
Bar Size
Guide Bar
Saw Chain
12
G3112
91VG45X
14
G3114
91VG52X
11. Troubleshooting Guide
Case 2. Lack of power/Poor acceleration/
Rough idling
Case 1. Starting failure
WARNING
Make sure the icing prevention system is not working.
Check fuel for water
or substandard mixture.
a
Replace with proper
fuel.
a
Remove and dry the
spark plug.
Then pull the starter
again with no choke.
d
Check for engine
flooding.
d
Check spark ignition.
a
Replace with a new
plug.
Check fuel for water
or substandard mixture.
a
Replace with proper
fuel.
a
Clean.
a
Readjust speed
needles.
d
Check air filter and
fuel filter for clogging.
d
Check carburetor
for inadequate adjustment.
Case 3. Oil does not come out
Check oil for substandard quality.
a
Replace.
a
Clean.
d
Check oil passage
and ports for clogging.
12. Disposal
When disposing your machine, fuel or oil for the machine, be
sure to follow your local regulations.
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If the unit seems to need further service, please consult
with an authorized service shop in your area.
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FEDERAL AND CALIFORNIA EMISSIONS CONTROL WARRANTY
STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONS
The EPA (U.S. Environmental Protection Agency), CARB (California Air Resources Board), Environment
Canada and RedMax are pleased to explain the emissions control system's warranty on your 2009 and later
small off-road engine. In U.S. and Canada, new equipment that use small off-road engines must be designed,
built, and equipped to meet the applicable Federal or Californian stringent anti-smog standards. RedMax must
warrant the emissions control system on your small off-road engine for the period listed below provided there
has been no abuse, neglect or improper maintenance of your equipment. Your emissions control system may
include parts such as carburetor, ignition system, catalytic converter, fuel tank, filters and other associated
components. Also, included may be hoses, belts, connectors, sensors, and other emission-related assemblies.
Where a warrantable condition exists, RedMax will repair your small off-road engine at no cost to you including
diagnosis, parts and labor.
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MANUFACTURER'S WARRANTY COVERAGE
This emissions control system is warranted for two years or if the product qualifies for a longer warranty period
resulting from the type of use, that period shall prevail. If any emissions-related part on your equipment is
defective, the part will be repaired or replaced by RedMax.
OWNER'S WARRANTY RESPONSIBILITIES
As the small off-road engine owner, you are responsible for performance of the required maintenance listed in
your Owner's Manual. RedMax recommends that you retain all receipts covering maintenance on your small offroad engine, but RedMax cannot deny warranty solely for the lack of receipts or your failure to ensure the
performance of all scheduled maintenance. As the small off-road engine owner, you should however be aware
that the RedMax may deny you warranty coverage if your small off-road engine or a part has failed due to
abuse, neglect, or improper maintenance or unapproved modifications.
You are responsible for presenting your small off-road engine to a RedMax distribution center or service center
as soon as the problem exists. The warranty repairs should be completed in a reasonable amount of time, not to
exceed 30 days. If you have any questions regarding your warranty coverage, you should contact RedMax at 1800-291-8251 or via e-mail at service@redmax.com.
WARRANTY COMMENCEMENT DATE
The warranty period begins on the date the engine or equipment is delivered to an ultimate purchaser.
LENGTH OF COVERAGE
RedMax warrants to the ultimate purchaser and each subsequent owner that the engine or equipment is
designed, built, and equipped so as to conform with all applicable regulations adopted by EPA and CARB, and
is free from defects in materials and workmanship that causes the failure of a warranted part for a period of two
years.
WHAT IS COVERED
REPAIR OR REPLACEMENT OF PARTS Repair or replacement of any warranted part under the warranty
must be performed at no charge to the owner at a warranty station. Warranty services or repairs will be provided
at all RedMax distribution centers that are franchised to service the subject engines. Throughout the emissions
warranty period of two years, RedMax must maintain a supply of warranted parts sufficient to meet the expected
demand for such parts.
WARRANTY PERIOD Any warranted part that is scheduled for replacement as required in the maintenance
schedule, is warranted for the period of time prior to the first scheduled replacement point for that part. If the
part fails prior to the first scheduled replacement, the part will be repaired or replaced by RedMax at no cost.
Any such part repaired or replaced under warranty is warranted for the remainder of the period prior to the first
scheduled replacement point for the part. Any warranted part that is not scheduled for replacement as required
in the maintenance schedule, is warranted for two years or if the product qualifies for a longer warranty period
resulting from the type of use, that period shall prevail. If any such part fails during the period of warranty
coverage, it will be repaired and replaced by RedMax at no cost. Any such part repaired or replaced under the
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warranty is warranted for the remaining warranty period. Any warranted part that is scheduled only for regular
inspection in the maintenance schedule will be warranted for a period of two years. A statement in such written
instructions to the effect of "repair or replace as necessary" will not reduce the period of warranty coverage. Any
such part repaired or replaced under warranty will be warranted for the remaining warranty period.
DIAGNOSIS The owner must not be charged for diagnostic labor that leads to the determination that a
warranted part is in fact defective, provided that such diagnostic work is performed at a warranty station.
CONSEQUENTIAL DAMAGES RedMax is liable for damages to other engine components proximately caused
by a failure under warranty of any warranted part.
EMISSION WARRANTY PARTS LIST
1. Air-induction system*
2. Fuel system*
3. Ignition system*
4. Fuel tank, cap and lines as applicable*
*some components only covered up to point specified by maintenance schedule
WHAT IS NOT COVERED
All failures caused by abuse, neglect or improper maintenance are not covered.
ADD-ON OR MODIFIED PARTS
Add-on or modified parts that are not exempted by CARB or EPA may not be used. The use of any nonexempted add-on or modified parts will be grounds for disallowing a warranty claim. RedMax will not be liable to
warrant failures of warranted parts caused by the use of a non-exempted add-on or modified part.
HOW TO FILE A CLAIM
If you have any questions regarding your warranty rights and responsibilities, you should contact your nearest
authorized servicing dealer or contact RedMax at 1-800-291-8251 or via e-mail at service@redmax.com.
WHERE TO GET WARRANTY SERVICE
Warranty services or repairs are provided through all RedMax authorized servicing dealers.
MAINTENANCE, REPLACEMENT AND REPAIR OF EMISSION-RELATED PARTS
Any replacement part may be used in the performance of any warranty maintenance or repairs and must be
provided without charge to the owner. Such use will not reduce the warranty obligations of the manufacturer.
MAINTENANCE STATEMENT
The owner is responsible for the performance of all required maintenance, as defined in the operator's manual.
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