RedMax | EB4401 | Specifications | RedMax EB4401 Specifications

848L3A93A0 (309)
OWNER / OPERATOR MANUAL
BACKPACK BLOWER
EB4401
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 :
Thank you for purchasing a RedMax
product.
Before using our blower, please read
this manual carefully to understand the
proper use of your unit.
310001 and up
Read this manual carefully to understand all
safety precautions, controls, proper operation
and maintenance of your RedMax blower.
Failure to do so could result in serious injury.
SAFETY FIRST
Instructions contained in warnings within this manual and warning seals marked
with a
symbol on the blower 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.
Note that there may be times when warning seals peel off or become soiled and
impossible to read. If this happens, you should contact the dealer from which
you purchased the product to order new seals and affix the new seal(s) in the
required location(s).
■ Notes on types of warnings
WARNING
IMPORTANT
NOTE
Instructions labeled as shown at left, concern critical steps or
procedures which must be followed in order to prevent accidents
which could lead to serious bodily injury or death.This mark is
used to indicate instructions which must be followed without
exception.
Instructions labeled as shown at left concern steps or procedures
which, if not followed correctly, could lead to mechanical failure,
breakdown, or damage.
Used to label supplementary instructions designed to provide
hints or directions useful in the use of the product.
CONTENTS
SAFETY PRECAUTIONS·······························································4
OPERATOR
USE OF BLOWER
FUEL
WORKING CONDITION
AVOID NOISE PROBLEM
AVOID CHANCES OF DAMAGE
WARNING LABELS ON THE MACHINE·······································7
SYMBOLS ON THE MACHINE······················································8
PARTS LOCATION & SPECIFICATIONS ······································9
ASSEMBLY ····················································································9
BLOWER TUBE
FUEL·····························································································10
HOW TO MIX FUEL
FUELING THE UNIT
OPERATION·················································································12
CONTROL ARM
STARTING ENGINE
ADJUSTING IDLE SPEED
STOPPING ENGINE
MAINTENANCE ···········································································14
AIR CLEANER
FUEL FILTER
SPARK PLUG
MUFFLER
SPARK ARRESTER
AIR INLET NET
SHOULDER STRAP
STORAGE ····················································································16
PARTS LIST ·················································································17
Safety Precautions
WARNING
• Read this Blower Owner/Operator Manual
carefully. Be sure you understand how to
operate this unit properly before you use
it. Failure to do so could result in serious
injury.
• Be sure to keep this manual handy so that
you may refer to it later whenever any
questions arise. Also note that you are
requested to contact the dealer from
whom you purchased the product for
assistance the event that you have any
questions which cannot be answered
herein.
• Always be sure to include this manual
when selling, lending, or otherwise
transferring the ownership of this product.
some other form of anti-slip protection to
help protect you against falling.
• To reduce the risk of injury associated with
objects being drawn into rotating parts, do
not wear loose clothing, scarves, neck
chains, unconfined long hair, and the like.
■ USE OF BLOWER
• Each time before starting the engine,
inspect the entire unit to see if every part is
in good order and is securely tightened in
place. If any damage is found in the fuel
line, the exhaust line, or the ignition wiring,
do not use the blower until it has been
repaired.
IMPORTANT
• Before starting operation, always make
sure to check if any obstacles are left
inside the volute case. The obstacles may
cause damage on fan and volute case and
serious injury.
■ OPERATOR
• Refrain from operating the blower if you are
tired, ill, or upset, or if you are under the
influence of alcohol, drugs or medication.
WARNING
• To reduce the risk of hearing loss
associated with sound level(s), hearing
protection is required.
• Always wear eye protection and foot
protection. Eye protection should meet
the requirements of ANSI Z87.1.
• To reduce the risk of injury associated with
the inhalation of dust, use a face filter mask
in dusty conditions.
• Wear rubber-soled shoes or shoes with
4 
Check to see if the shock-absorbing rubber
mount has become cracked or otherwise
damaged. Note that failing to replace this
rubber mount when it has become
cracked or damaged may cause the
engine to come loose from its frame
during use, thus resulting in possible
serious bodily injury.
• If cracked, be sure to replace without delay.
Safety Precautions
WARNING
• To reduce the risk of injury associated with
contacting rotating parts, stop the engine
before installing or removing attachments.
Do not operate without net in place.
Always disconnect the spark plug before
performing maintenance or accessing
movable parts.
• Do not allow children to use blower. Make
sure that each person you authorize to
operate the blower understands all of the
safety rules in this manual.
• Avoid using any accessory or attachment
other than those bearing the RedMax mark
for use with the blower.
• Drain the fuel from the fuel tank before
transporting or storing the blower.
• When storing the blower, choose a space
indoors free from moisture and out of the
reach of children.
• Examine the blower at intervals for loose
fasteners and rusted or damaged parts.
Use special care around the fuel line, the
muffler, and the ignition wiring.
• All engine service except for those
described in this manual should be
performed by competent service personnel.
Improper service to the blower fan and
muffler could cause a hazardous failure.
■ FUEL
WARNING
To reduce the risk of fire and burn injury:
• Handle fuel with care. It is highly
flammable.
• Do not smoke while handing fuel.
• Do not refuel a hot engine.
• Do not refuel a running engine.
• Avoid spilling fuel or oil. Always wipe unit
dry before using.
• Move at least 10 ft. (3 meters) away from
the fueling point before starting engine.
• Always store gasoline in a container
approved for flammable liquids.
• Make sure the unit is properly assembled
and in good operating condition.
■ WORKING CONDITION
• Check the work area that the blower will be
used in and remove or cover all valuables
that may be damaged by the air blast or
thrown debris.
• To reduce the risk of injury associated with
exhaust fume inhalation, do not operate in
unventilated area. The exhaust gases
contain harmful carbon monoxide.
• Do not allow bystanders in work area.
• Do not point the blower nozzle in the
direction of people or pets.
5 
Safety Precautions
• Avoid using the blower where stable footing
and balance are not assured.
• Never to touch the spark plug or plug cord
while the engine is in operation. Doing so
may result in being subjected to an
electrical shock.
• Never to touch the muffler, spark plug, or
other metallic parts of the engine while the
engine is in operation or immediately after
shutting down the engine. These metallic
parts reach high temperatures during
operation and doing so could result in
serious burns.
■ AVOID NOISE PROBLEM
NOTE
Check and follow the local regulations
as to sound level and hours of
operations for blower.
• Operate power equipment only at
reasonable hours-not early in the morning
or late at night when people might be
disturbed. Comply with times listed in local
ordinances.
• To reduce sound levels, limit the number of
pieces of equipment used at any one time.
• Operate power blowers at the lowest
possible throttle speed to do the job.
• Check your equipment before operation,
especially the muffler, air intakes and air
filters.
• Loosen compacted leaves, grass or debris
with a rake or broom beforehand, so that
the lowest possible throttle setting would
get the job done.
• In dusty conditions, slightly dampen
surfaces or use mister attachment when
water is available.
■ AVOID CHANCES OF DAMAGE
• Watch out for children, pets, open windows
or freshly washed cars, and blow debris
safely away.
• Use the full blower nozzle extension so the
air stream can work close to the ground.
• After using blowers and other equipment,
CLEAN UP! Dispose of debris in trash
receptacles.
• Always check to be sure that no debris has
been blown onto someone else’s property.
6 
Warning labels on the machine
(1) Read owner's manual before operating this machine.
(2) Wear head, eye and ear protection.
(3) Handling this machine improperly could result in accidents causing serious injury or
death. Read this manual carefully and practice using the blower until you are fully
acquainted with all operations and have learned to use it correctly.
IMPORTANT
If warning label peel off or become soiled and impossible to read, you should contact the dealer
from which you purchased the product to order new labels and affix them in the required
location(s).
WARNING
Never modify your machine.
We won't warrant the machine, if you use the remodeled machine or you don't observe
the proper usage written in the manual.
7 
Symbols on the machine
For safe operation and maintenance, symbols are
carved in relief on the machine. According to these
indications, please be careful not to make a
mistake.
(a) The port to refuel the "MIX GASOLINE"
Position: FUEL TANK CAP
(b) The direction to close the choke
Position: AIR CLEANER COVER
(c) The direction to open the choke
Position: AIR CLEANER COVER
IMPORTANT ENGINE INFORMATION
THIS ENGINE CONFORMS TO US EPA
PH1 AND 1995-1999 CALIFORNIA EMISSION
REGULATIONS FOR ULGE ENGINES.
ENGINE FAMILY : WKZXS. 0424ST ; EM
ENGINE DISPLACEMENT : 41.5cc
REFER TO OWNER'S MANUMAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.
MANUFACTURED :
RedMax
8 
Made in Japan
INFORMATION IMPORTANTE
CONCERNANT LE MOTEUR
Ce moteur conformc aux normcs U.S. EPA PH1 et
1995-1999 de la régulementation concernant la
pollution de l'air pour les petits moteurs tout-terrain.
Type de moteur : WKZXS. 0424ST ; EM
Cylindrée du moteur : 41,5cc
Se référer au Manuel de l'utilisateur pour
les spécifications d'entretien et les réglages.
Manufacturé :
RedMax
Made in Japan
Parts Location & Specifications
MODEL EB4401
Dimensions ( L x W x H )
Dry Weight
Fuel Tank Capacity
Engine Type
Piston Displacement
Air Filter
Carburetor ( Diaphragm )
Ignition System
Spark Plug
Muffler
Durability Period
Operating Engine Speed
PIPE END
Fuel Consumption
Air Volume
Air Volume (w/o Pipes)
Air Velocity
Noise Level
mm ( in )
kg ( lbs )
liter ( fl. oz )
cc ( cu. in )
valve type
hrs
rpm
liter/h ( fl. oz/h )
cu. m/min ( cfm )
cu. m/min ( cfm )
m/sec ( mph )
dB(A)
480 x 535 x 495 (189 x 211 x 195)
8.8 (19.3)
2.0 (67.6)
Air cooled 2-cycle gasoline engine
41.5 (2.53)
Regular size
Rotary
C.D.I
Champion RJ6C (Noise-proof)
Spark arrester equipped
300
2,000 to 6,500
ø57
1.7 (57.5)
11 (388)
18 (636)
72 (161)
72
Assembly
■ BLOWER TUBES
1.Connect the blower and swivel joint with
flexible hose. Clamp both ends of the
flexible hose securely with the hardware
supplied with the unit.
2.Align the protrusion and the groove
provided on the tube ends and twist the
tube until connection is locked up.
9 
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
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. (JASO FC GRADE
OIL or ISO EGC GRADE)
• Do not use BIA or TCW (2-stroke watercooling type) mixed oil.
■ RECOMMENDED MIXING RATIO
GASOLINE 50:OIL 1
50:1 MIXING CHART
GASOLINE gal. 1
2
3
4
5
2-CYCLE OIL fl.oz 2.6 5.2 7.8 10.4 13
GASOLINE liter
2-CYCLE OIL ml
1
20
2
40
3
60
4
80
5
100
• 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
unleaded gasoline.
• Make sure to use gasoline with a
minimum octane number of 89 RON
(USA/Canada: 87AL)
• If you use a gasoline of a lower octane
value than prescribed, there is a danger
that the engine temperature may rise and
an engine problem such as piston seizing
may consequently occur.
• Unleaded gasoline is recommended to
reduce the contamination of the air for the
sake of your health and the environment.
• Poor quality gasolines or oils may damage
sealing rings, fuel lines or fuel tank of the
engine.
■ HOW TO MIX FUEL
IMPORTANT
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.
4. Pour In the rest of gasoline and agitate
10 
Fuel
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.
5. Put a clear indication on the outside of the
container to avoid mixing up with gasoline
or other containers.
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 dustless place.
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.
long period of time, clean the fuel tank
after rendering it empty. Next, activate the
engine and empty the carburetor of the
composite fuel.
6. In the case of scrapping the used mixed
oil container, scrap it only at an authorized
repository site.
NOTE
As lot 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 fhe
mixed gasoline, etc. described therein, if
may not be covered by the warranty.
WARNING
1. Select bare ground for fueling.
2. Move at least 10feet (3meters) 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 sticking.
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
11 
Operation
■ CONTROL ARM
1.Hold the upper end of the control arm in
hand and, while pulling it away from the
unit, rotate arm forward (anti-clockwise as
the arrow direction) until it clicks. (The first
position)
■ STARTING ENGINE
IMPORTANT
• Avoid operating the blower with the
flexible tube and swivel joint
disconnected. That will reduce the
cooling air and the engine could be
damaged by overheating.
1.Push the primer bulb until fuel flows out in
the clear tube.
2.When the engine is cool, close the choke.
And if you want, you can rotate arm more
forward until it clicks. (The second
position)
Choose the arm position according to your
working condition.
3.Set the throttle lever in 1/3 open position.
Full Throttle
About 1/3 Open
Idling
To fold the arm, reverse the order.
4.To start, hold the top of the blower firmly
with your left hand. Pull the starter knob
slowly until you feel it engage and then
give it a vigorous strong pull.
IMPORTANT
• Avoid pulling the starter rope out to its
full extent and allowing the starter rope
to snap back. This will prevent
premature damage to the starter.
• Do not let a person stand near the
blower or the exhaust port.
5.Once the engine is running, gradually open
12 
Operation
the choke if it was set closed, and let the
engine run at idle speed for a minute to
warm it up.
NOTE
• When the engine fails to start after several
attempts due to overchoking, open the
choke and repeat pulling the rope.
■ ADJUSTING IDLE SPEED
• The idling speed is set for 2000 rpm at the
factory. If it is necessary to adjust the idle
speed, use the adjustment screw on the
top side of carburetor.
■ STOPPING ENGINE
• Move the throttle lever to the idling position
and press the stop switch (red button) until
the engine comes to a complete stop.
Stop Switch
13 
Maintenance
WARNING
• Make sure that the engine has stopped
and is cool before performing any
service to the blower. Contact with
rotating blower fan or hot muffler may
result in a personal injury.
■ AIR CLEANER
• Never operate the blower without an air
filter or with a deformed or broken filter
element.
• C h e c k the air cleaner every 25 hours
of use or more frequently if used under
dusty conditions. A clogged air filter
may increase fuel consumption while
cutting down the engine power. Never
operate the blower without the air filter
or with a deformed filter element
because unfiltered dusty air will quickly
ruin the engine.
CLEANING AIR FILTER:
1.Remove the air cleaner cover by pulling
the tab on bottom and take out the filter
element.
2.Use neutral detergent and warm water to
clean the filter element. After cleaning, air
dry the element completely and moisten
with a small amount of motor oil.
■ FUEL FILTER
• A clogged fuel filter may cause poor
acceleration of the engine. Check
periodically to see if the filter is clogged
with dirt. The filter can be taken out of the
fueling port using a small wire hook.
Disconnect the filter assembly from the fuel
pipe and unhook the retainer to
disassemble it. Clean the components with
gasoline.
■ SPARK PLUG
• The spark plug may gather carbon deposits
on its firing end with reasonable use.
Remove and inspect the spark plug every
25 hours and clean the electrodes as
necessary with a wire brush. The spark gap
should be adjusted to .025 in (0.6~0.7mm).
• Plug manufacturers recommend replacing
the plug twice a year to avoid unexpected
plug failure in a job.
REPLACEMENT PLUG IS A CHAMPION
RJ6C.
3.Place the filter element into the air cleaner
housing and press the cover against the
housing until it clicks. Never forget to
attach the screen. If the screen is not
attached, the cleaner will not seal properly
and the dusts come into the cylinder.
14 
IMPORTANT
• Note that using any spark plugs other than
those designated may result in the engine
failing to operate properly or in the engine
becoming overheated and damaged.
• To install the spark plug, first turn the plug
until it is finger tight, then tighten it a
quarter turn more with a socket wrench.
Maintenance
■ MUFFLER
WARNING
• Inspect periodically, the muffler for loose
fasteners, any damage or corrosion. If any
sign of exhaust leakage is found, do not
use the blower and have it repaired
immediately.
• Note that failing to do so may result in
the engine catching on fire.
■ AIR INLET NET
IMPORTANT
• Blowing air is taken in from the air inlet net.
When air flow has dropped down during
operation, stop the engine and inspect the
air inlet net for blocking by obstacles.
• Note that failure to remove any such
obstacles may result in the engine
becoming overheated and damaged.
IMPORTANT
• Before starting operation, always make
sure to check if the muffler is properly held
by three bolts to the cylinder. (Fastening
Torque : 80~120kg·cm)
• Even if one bolt out of three bolts is loose,
the muffler may get loose during operation
which may result in engine catching on fire.
■ SPARK ARRESTER
• The muffler is equipped with a spark
arrester to prevent red hot carbon from
flying out of the exhaust outlet. Periodically
inspect and clean as necessary with a wire
brush. In the State of California it is
required by law (Section 4442 of the
California Public Resources Code) to equip
a spark arrester when a gas powered tool
is used in any forest covered, brush
covered, or grass covered unimproved
land.
WARNING
• Never use the blower without the net of
the blower. Before each use, check that
the net is attached in place and is free
from any damage.
15 
Maintenance
■ SHOULDER STRAP
• If the shoulder strap is damaged it may
break during use, thus causing the product
to fall and resulting in personal injury.
Follow the instructions below to replace the
shoulder strap.
• Pass the upper end of the strap through the
hanger, making the FLAPPED SIDE
OUTSIDE.
• Put the end of the strap through the ring on
the strap, and then push the ring toward
the hanger as close as possible.
Storage
BEFORE STORING THE BLOWER:
1.Drain a fuel tank and push the primer bulb
until it becomes empty of fuel.
2.Remove the spark plug and drop a
spoonful of 2-cycle oil into the cylider.
Crank the engine several time and replace
the plug.
16 
WARNING
• The flap on the end of the strap works
as a stopper. Never install the strap with
the flapped side inside, or the unit may
fall from the operator, which could
result in injury to the operator and/or
damage to the unit.
Parts List
BACKPACK BLOWER
EB4401
NOTE :
1. Use KOMATSU ZENOAH genuine parts as specified in the parts list for repair and/or
replacement.
2. KOMATSU ZENOAH does not warrant the machines, which have been damaged by the
use of any parts other than those specified by the company.
3. When placing parts orders for repair and/or replacement, check if the model name and the
serial number are applicable to those specified in the parts list, then use parts number
described in the parts list.
4. The contents described in the parts list may change due to improvement.
5. The parts for the machine shall be supplied seven (7) years after the machine is
discontinued. [It is possible that some specific parts may be subject to change of their
delivery term and list price within the limit of seven (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 :
310001 and up
17 
Parts List : EB4401
Fig.1 BLOWER GROUP (S/N 310001 and up)
18 
EB4401
Fig.1 BLOWER GROUP (S/N 310001 and up)
Key#
Part Number
Description
Q'ty
Key#
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
2750-31111
2750-31212
2750-31150
3490-11150
07000-02095
2750-31420
3310-53331
T4012-31310
2750-31150
1140-72231
3407-16120
2750-31290
2750-31911
T4012-32610
2750-31510
3407-12210
2750-31612
2750-31150
2750-72230
T4012-32002
T4012-32101
3490-21121
3460-21311
3495-21320
2756-32300
T4012-32500
1480-74710
2750-32510
2750-32520
2750-32530
2750-32541
2750-32610
2750-32620
2756-85102
T1015-85202
4500-85300
4500-85220
5601-85260
4820-85260
2756-85300
3302-85400
1260-85460
3407-23610
1100-86120
VOLUTE CASE
VOLUTE COVER
SCREW M5x25
ELBOW
O-RING
SCREW M5x70
NUT
COVER INLET
SCREW M5x25
CLAMP
SCREW M5x14
TUBE
LABEL
LABEL, net
FAN
BOLT M5x40
ENGINE COVER
SCREW M5x25
CLAMP
FRAME ASSY
• FRAME COMP
• RING
PAD
CLIP
BAND ASSY
NET COMP
CLIP
DAMPER,UPPER
WASHER
SCREW M5x40
BOLT M5x16 (Large Washer)
DAMPER,LOWER
NUT M6
TANK ASSY
• CAP ASSY
• • HOLDER ASSY
• • PACKING
• • FILTER
• • STOPPER
• PIPE COMP
• FILTER
• CLIP
SCREW
CLIP
1
1
9
1
1
2
2
1
3
1
1
1
1
1
1
4
1
4
1
1
1
2
1
4
2
1
4
1
1
1
2
2
2
1
1
1
1
1
1
1
1
1
2
1
66
67
68
69
70
61
62
63
T4017-51110
2750-51201
6811-51211
HOSE
SWIVEL JOINT
PIPE, straight
1
1
1
65
2756-51510
CLAMP
1
Part Number
2756-51520
3407-91000
3540-91120
3407-91130
2756-51220
Description
CLAMP
TOOL SET
• SPANNER
• SOCKET
PIPE, end ø57
Q'ty
1
1
1
1
1
19 
Parts List : EB4401
Fig.2 ENGINE GROUP (S/N 310001 and up)
20 
EB4401
Fig.2 ENGINE GROUP (S/N 310001 and up)
Key#
Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
1490-12114
2756-12210
1850-12130
1484-13161
2756-13120
2756-13130
1484-13170
1491-32110
2750-12520
2756-15100
1421-15120
2750-15210
2750-15160
2750-15170
2756-21100
2756-21140
T4012-21240
T4019-21210
T1108-21220
01252-30530
04065-03515
2750-21211
1565-72211
1483-41111
1400-41220
1490-41310
3350-41320
1400-41410
2616-41510
2756-42000
1300-42410
1400-43230
1000-43240
2750-71111
2750-71200
3350-14150
1900-72112
1900-72120
5500-72130
1497-73110
41
42
43
44
45
2756-71220
2756-73200
1487-75101
1180-75221
1487-75120
Description
Cylinder
Gasket, base
Bolt M5x20
Insulator
Gasket
Gasket
Bolt
Cover
Bolt M5x10
Muffler ass’y
• Arrester
Gasket
Bolt M6x70
Bolt M6x12
Crankcase comp
Gasket
Bearing 15x35x11
Oil seal 15x25x7
Oil seal 15x35x6
Bolt
Snap ring
Cover
Bolt M4x16
Piston φ40
Ring
Piston pin
Snap ring
Bearing
Washer
Crankshaft comp
Shim
Nut M10(P=1.0)
Key
Rotor
Coil ass’y
Bolt M4x20
Cap
Spring
Grommet
Spark plug
(Champion RJ6C)
Cap
Cord comp
Recoil ass’y
• Spring
• Reel
Q'ty
Key#
Part Number
Description
Q'ty
1
1
4
1
1
1
2
1
2
1
1
1
2
1
1
1
3
1
1
4
1
1
1
1
2
1
2
1
2
1
0~1
2
1
1
1
2
1
1
1
1
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
1487-75140
1861-75150
1483-75270
1487-75160
1487-75170
1400-75160
1400-75170
1487-75211
3460-75510
848L3A90C0
3407-81000
3407-82102
3407-82130
3407-82140
2630-33610
1487-82201
1487-82210
5500-82230
1491-82311
1484-82510
0263-90560
1491-82352
1491-82360
1133-82060
2750-21510
• Dog
• Washer
• Screw
• Retainer
• Washer
• Rope
• Knob
Pulley
Bolt M5x20
Label
Carburetor (WYK-67)
Body ass’y
• Plate
• Lever
• Screw
Cover ass’y
• Knob
• Ring
Element
Plate
Screw
Screen
Screw, Tapping φ5x6
Label
Bolt M6x40
1
1
1
1
1
1
1
1
4
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
6
101
102
103
104
105
106
2756-05011
2756-06010
2750-96100
3350-96220
3350-96230
2750-96240
Short block
Gasket kit
Puller ass’y
Stopper
Guide
Gauge
OP
OP
OP
OP
OP
OP
1
1
1
1
1
21 
Parts List : EB4401
Fig.3 CARBURETOR COMPONENTS
(S/N 310001 and up)
Carburetor Ass’y (WYK-67)
P/NO. 3407-81000
Key#
Part Number
Description
Q'ty
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26*
27*
28
1850-81450
—————
—————
—————
—————
—————
—————
1850-81490
1850-81520
1751-81510
5500-81160
1881-81140
1751-81130
—————
—————
—————
—————
1752-81110
5500-81120
1751-81180
1918-81170
1881-81130
1850-81530
3407-81250
1751-81240
—————
—————
5602-06020
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
4
1
1
1
1
OP
29
5602-06030
Body ass’y
Screen
Valve
Spring
Screw
Pin
Lever
Body
Cover
Pump
Washer
Swivel
Ring
Gasket
Diaphragm
Gasket
Diaphragm
Screw
Bracket
Nut
Screw
Ring
Screw
Jet
O-Ring
Body
Valve ass’y
Gasket Kit
(Key# 14,15,16,17)
Rebuild Kit
(Gasket Kit + Key# 1)
OP
[NOTE]
• 26*-Body and 27*-Valve ass’y are not supplied
as an individual part respectively, but supplied
as a carburetor ass’y (P/NO. 3407-81000).
22 
Parts List : EB4401
Fig.4 LEVER SET
(S/N 310001 and up)
Key#
Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
T4012-25001
T4012-25100
3310-53331
01642-20508
T4012-25211
T4012-25311
3495-25410
3495-25420
3495-25440
01584-00605
3495-25450
T4012-25511
T4012-83110
T4012-25610
1601-72411
2750-51501
2750-51520
3495-51430
3238-15230
2750-51540
2750-32541
Description
LEVER SET
• LEVER
• NUT M5
• WASHER
• ARM
• BRACKET
• BOLT
• SPRING
• WASHER
• NUT
• WASHER
• SWITCH
• CABLE COMP
• TUBE
• CAP
GRIP ASSY
• WING BOLT
• WING NUT
• WASHER
• NUT
BOLT
Q'ty
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
2
1
2
23 
CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT
YOUR WARRANTY RIGHTS AND OBLIGATIONS
The California Air Resources Board and KOMATSU ZENOAH are pleased to explain the
emission control system warranty on your 1995 and later small off-road engine. In California,
new small off-road engines must be designed, built and equipped to meet the state’s stringent
anti-smog standards. KOMATSU ZENOAH must warrant the emission control system on your
small off-road engine for the periods of time listed below provided there has been no abuse,
neglect or improper maintenance of your small off-road engine.
Your emission control system may include parts such as the carburetor and the ignition system.
Where a warrantable condition exists, KOMATSU ZENOAH will repair your small off-road engine
at no cost to you including diagnosis, parts and labor.
Manufacturer’s warranty coverage:
The 1995 and later small off-road engines are warranted for two years. If any emissionrelated part on your engine is defective, the part will be repaired or replaced by
KOMATSU ZENOAH.
Owner’s warranty responsibilities:
– As the small off-road engine owner, you are responsible for the performance of the
required maintenance listed in your owner’s manual. KOMATSU ZENOAH
recommends that you retain all receipts covering maintenance on your small off-road
engine, but KOMATSU ZENOAH can not deny warranty solely for the lack of receipts or
for your failure to ensure the performance of all scheduled maintenance.
– As the small off-road engine owner, you should be aware, however, that KOMATSU
ZENOAH may deny you warranty coverage if your small off-road engine or a part has
failed due to abuse, neglect, improper maintenance or unapproved modification.
– You are responsible for presenting your small off-road engine to a KOMATSU ZENOAH
distribution center as soon as a problem exists. The warranty repairs should be
completed in e reasonable amount of time, not to exceed 30 days.
If you have any questions regarding your warranty rights and responsibilities, you should
contact KOMATSU ZENOAH AMERICA INC. at (770)-381-5147 or you can write to
KOMATSU ZENOAH AMERICA INC.
4344 Shackleford Road Suite 500
Norcross, Georgia 30093
RedMax
LIMITED WARRANTY
EMISSION-RELATED PARTS, FOR TWO (2) YEARS FROM THE DATE OF ORIGINAL DELIVERY OF THE UNIT,
KOMATSU ZENOAH AMERICA INC. (THE COMPANY),
THROUGH ANY RedMax DEALER, WILL REPAIR OR REPLACE, FREE OF CHARGE, FOR THE ORIGINAL AND EACH
SUBSEQUENT PURCHASER, ANY PART OR PARTS FOUND TO BE DEFECTIVE IN MATERIAL AND/OR
WORKMANSHIP. EMISSION-RELATED PARTS ARE:
THE CARBURETOR ASSY, COIL ASSY, ROTOR, SPARKPLUG,
AIR FILTER, FUEL FILTER, INTAKE MANIFOLD, AND THE GASKETS
ALL OTHER PARTS EXCEPT ABOVE PARTS, FOR TWO (2) YEARS OF USE, 90 DAYS FOR RENTAL USE, FROM THE
DATE OF ORIGINAL PURCHASE, THE COMPANY, THROUGH ANY RedMax DEALER, WILL REPAIR OR REPLACE, FREE
OF CHARGE, FOR THE ORIGINAL PURCHASER, ANY PART OF PARTS FOUND TO BE DEFECTIVE IN MATERIAL AND/OR
WORKMANSHIP. THIS IS THE EXCLUSIVE REMEDY.
THE PURCHASER SHALL BEAR COSTS OF TRANSPORTING THE UNIT TO AND FROM THE RedMax DEALER.
THE PURCHASER SHALL NOT BE CHARGED FOR DIAGNOSTIC LABOR WHICH LEADS TO THE DETERMINATION
THAT A WARRANTED PART IS DEFECTIVE, IF THE DIAGNOSTIC WORK IS PERFORMED AT THE RedMax DEALER.
THE PURCHASER OR OWNER IS RESPONSIBLE FOR THE PERFORMANCE OF THE REQUIRED MAINTENANCE AS
DEFINED BY THE MANUFACTURER IN THE OWNER/OPERATOR MANUAL.
ANY WARRANTED PART WHICH IS NOT SCHEDULED FOR REPLACEMENT AS REQUIRED MAINTENANCE, OR
WHICH IS SCHEDULED ONLY FOR REGULAR INSPECTION TO THE EFFECT OF "REPAIR OR REPLACE AS
NECESSARY" SHALL BE WARRANTED FOR THE WARRANTY PERIOD.ANY WARRANTED PART WHICH IS
SCHEDULED FOR REPLACEMENT AS REQUIRED MAINTENANCE SHALL BE WARRANTED FOR THE PERIOD OF
TIME UP TO THE FIRST SCHEDULED REPLACEMNET POINT FOR THE PART.
ANY REPLACEMENT PART THAT IS EQUIVALENT IN PERFORMANCE AND DULABILITY MAY BE USED IN NONWARRANTY MAINTENANCE OR REPAIRS, AND SHALL NOT REDUCE THE WARRANTY OBLIGATION OF THE
COMPANY.
THE COMPANY IS LIABLE FOR DAMAGES TO OTHER ENGINE COMPONENTS CAUSED BY THE FAIRURE OF A
WARRANTED PARTS STILL UNDER WARRANTY.
THE WARRANTY DOES NOT APPLY TO THOSE UNITS WHICH HAVE BEEN DAMAGED BY NEGLIGENCE OF
INSTRUCTION LISTED IN THE OWNER/OPERATOR MANUAL FOR PROPER USE AND MAINTENANCE OF THE UNITS,
ACCIDENT MISHANDLING, ALTERATION, ABUSE, IMPROPER LUBULICATION, USE OF ANY PARTS OR ACCESSARIES
OTHER THAN THOSE SPECIFIED BY THE COMPANY, OR OTHER CAUSES BEYOND THE CONPANY'S CONTROL.
THIS WARRANTY DOES NOT COVER THOSE PARTS REPLACED BY NORMAL WEAR OR HARMLESS CHANGES IN
THEIR APPEARANCE.
THERE ARE NO OTHER EXPRESS WARRANTIES.
IMPLIED WARRANTIES INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE LIMITED TO TWO (2) YEARS OF USE FROM THE ORIGINAL DELIVERY DATE.
LIABILITIES FOR INCIDENTAL OR CONSEQUENTIAL DAMAGE UNDER ANY AND ALL WARRANTIES
ARE EXCLUDED.
SOME STATES DO NOT ALLOW LIMITATION ON HOW LONG AN IMPLIED WARRANTY LASTS OR EXCLUSION OR
LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMINATION OR EXCLUSION MAY
NOT APPLY TO YOU.
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY
FROM STATE TO STATE.
IF YOU NEED TO OBTAIN INFORMATION ABOUT THE NEAREST SERVICE CENTER, PLEASE CALL KOMATSU
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.
KOMATSU ZENOAH AMERICA INC.
4344 Shackleford Road Suite 500
Norcross, Georgia 30093
RedMax
Garantie limitée
Pièces en rapport avec les émissions de gaz d'échappement : KOMATSU ZENOAH AMERICA INC., par
l'intermédiaire de n'importe quel revendeur RedMax, réparera gratuitement ou remplacera gratuitement pour
l'acheteur initial et chaque acheteur successif toute(s) pièce(s) se révélant de constitution et/ou de montage
défectueux pendant deux (2) ans à compter de la date initiale de livraison d’une unité. Les pièces en rapport avec les
émissions de gaz d'échappement sont:
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 les pièces autres que celles mentionnées ci-dessus, deux (2) ans d’utilisation, 90 jours pour la location, à
compter de la date d’achat initial. La société, par l’intermédiaire d’un distributeur RedMax, réparera ou remplacera
toute(s) pièce(s), sans frais et au bénéfice de l’acheteur original, en prenant en charge les frais de pièces et/ou de
main d’œuvre. 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 chez le revendeur RedMax.
L’acheteur ou propriétaire a pour responsabilité d’effectuer l’entretien obligatoire tel que défini par le fabricant dans le
manuel du propriétaire/de l'utilisateur.
Toute pièce garantie dont le remplacement n'est pas prévu dans le cadre de l’entretien obligatoire, ou pour laquelle
est seulement prévue une inspection périodique pour "remplacement ou réparation si nécessaire" sera garantie pour
la période de garantie. Toute pièce garantie arrivée à l’échéance de son premier remplacement prévu sera garantie
jusqu’à celui-ci.
Toute pièce de rechange équivalente en performance ou en durabilité peut être utilisée pour l’entretien hors-garantie
ou les réparations hors-garantie, et ce sans réduire l’obligation de garantie incombant à la société.
La société sera tenue responsable des dommages aux autres composants du moteur causés par la défaillance de
pièce(s) garantie(s) en période de garantie.
La garantie ne s'applique pas aux unités endommagées par suite de: négligence dans la mise en oeuvre des
instructions spécifiées dans le manuel du propriétaire/de l'utilisateur en vue d’une utilisation et d’un entretien correct,
fausse manœuvre accidentelle, modification, utilisation abusive, lubrification incorrecte, utilisation de pièces ou
d’accessoires autres que ceux spécifiés par la société, ou autres causes hors du contrôle de la société.
Cette garantie ne couvre pas les pièces remplacées en raison de leur usure normale ou de changements
d’apparence sans effets.
Il n'existe aucune autre garantie explicite.
Les garanties implicites, y compris la valeur marchande et la valeur d’usage pour une utilisation particulière, sont
limitées à deux (2) ans d’utilisation à compter de la date originale de livraison.
Les responsabilités pour les dommage conséquents ou incidents sont exclues de toutes les garanties.
Certaines provinces n'autorisant pas les limitations à la durée des garanties implicites, ou les exclusions ou
limitations relatives aux dommages incidents ou conséquents, la limitation indiquée ci-dessus peut ne pas vous être
applicable.
Cette garantie vous donne des droits juridiques spécifiques, et vous pouvez également jouir d’autres droits variant
d'une province à l'autre.
Si vous désirez obtenir des informations sur le centre de service le plus proche, veuillez appeler KOMATSU
ZENOAH AMERICA INC. au (770)-381-5147
Note importante: vous recevrez une carte d'enregistrement de garantie au moment de l'achat. Veuillez la remplir et
l'adresser à RedMax / KOMATSU ZENOAH AMERICA sous sept (7) jours en prenant soin de conserver une copie
pour vous.
KOMATSU ZENOAH AMERICA INC.
4344 Shackleford Road Suite 500
Norcross, Georgia 30093
KOMATSU ZENOAH AMERICA INC.
4344 Shackleford Road Suite 500
Norcross, Georgia 30093
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