RedMax Blower EB4400 User Guide

T4018-93110 (010)  
OWNER/OPERATOR MANUAL  
BACKPACK BLOWER  
EB4400  
Thank you for purchasing a RedMax  
product.  
WARNING  
Before using our blower, 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.  
010001 and up  
APPLICABLE SERIAL NUMBERS :  
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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·················································································11  
CONTROL ARM  
STARTING ENGINE  
ADJUSTING IDLE SPEED  
STOPPING ENGINE  
MAINTENANCE ···········································································13  
AIR CLEANER  
FUEL FILTER  
SPARK PLUG  
MUFFLER  
SPARK ARRESTER  
AIR INLET NET  
SHOULDER STRAP  
STORAGE ····················································································16  
PARTS LIST ·················································································17  
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Safety Precautions  
some other form of anti-slip protection to  
help protect you against falling.  
WARNING  
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.  
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.  
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.  
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.  
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.  
• Always be sure to include this manual  
when selling, lending, or otherwise  
transferring the ownership of this product.  
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  
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.  
• 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.  
If cracked, be sure to replace without delay.  
• 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   
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Safety Precautions  
FUEL  
WARNING  
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.  
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.  
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.  
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.  
• 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.  
• Do not allow bystanders in work area.  
• Do not point the blower nozzle in the  
direction of people or pets.  
5   
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Safety Precautions  
• Avoid using the blower where stable footing  
and balance are not assured.  
AVOID NOISE PROBLEM  
NOTE  
• 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.  
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.  
• 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.  
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   
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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   
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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 MAINTE-  
NANCE SPECIFICATIONS AND ADJUSTMENTS.  
MANUFACTURED :  
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  
RedMax  
Made in Japan  
8   
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Parts Location & Specifications  
MODEL EB4400  
Dimensions ( L x W x H )  
Dry Weight  
mm ( in )  
kg ( lbs )  
480 x 535 x 495 (189 x 211 x 195)  
8.8 (19.3)  
2.0 (67.6)  
Fuel Tank Capacity  
Engine Type  
liter ( fl. oz )  
Air cooled 2-cycle gasoline engine  
41.5 (2.53)  
Piston Displacement  
Air Filter  
cc ( cu. in )  
valve type  
Regular size  
Carburetor ( Diaphragm )  
Ignition System  
Spark Plug  
Rotary  
C.D.I  
Champion RJ6C (Noise-proof)  
Spark arrester equipped  
300  
Muffler  
Durability Period  
Operating Engine Speed  
hrs  
rpm  
2000 to 6000  
PIPE END  
φ57  
φ66  
Fuel Consumption  
Air Volume  
liter/h ( fl. oz/h )  
cu. m/min ( cfm )  
cu. m/min ( cfm )  
m/sec ( mph )  
dB(A)  
1.7 (57.5)  
9.8 (345)  
83 (186)  
12 (423)  
Air Volume (w/o Pipes)  
Air Velocity  
16 (564)  
72 (160)  
Noise Level  
69  
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   
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Fuel  
• 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.  
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.  
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.  
6. Indicate the contents on outside of  
container for easy identification.  
• 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)  
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.  
RECOMMENDED MIXING RATIO  
GASOLINE 50:OIL 1  
3. Fasten the fuel cap securely and wipe up  
any fuel spillage around the unit.  
WARNING  
1. Select bare ground for fueling.  
2. Move at least 10 feet (3 meters) away  
from the fueling point before starting the  
engine.  
50:1 MIXING CHART  
GASOLINE gal.  
1
2
3
4
5
3. Stop the engine before refueling the unit.  
2-CYCLE OIL fl.oz 2.6 5.2 7.8 10.4 13  
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 or  
WATER COOLED 2-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.  
GASOLINE liter  
1
2
3
4
5
2-CYCLE OIL ml 20  
40  
60  
80 100  
• 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 90  
ROZ(USA/Canada : pump octane min.87)  
10   
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Operation  
CONTROL ARM  
STARTING ENGINE  
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)  
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  
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.  
To fold the arm, reverse the order.  
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  
11   
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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  
12   
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Maintenance  
FUEL FILTER  
WARNING  
• 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.  
• 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.  
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).  
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.  
• 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.  
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.  
13   
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Maintenance  
MUFFLER  
AIR INLET NET  
IMPORTANT  
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.  
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.  
• Note that failing to do so may result in  
the engine catching on fire.  
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.  
WARNING  
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.  
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.  
14   
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Maintenance  
SHOULDER STRAP  
WARNING  
• 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.  
• 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.  
Put the end of the strap through the ring on  
the strap, and then push the ring toward  
the hanger as close as possible.  
15   
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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   
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Parts List  
BACKPACK BLOWER  
EB4400  
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 ten (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.]  
010001 and up  
APPLICABLE SERIAL NUMBERS :  
17   
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Parts List : EB4400  
Fig.1 CARBURETOR COMPONENTS (S/N 010001 and up)  
Carburetor Ass’y (WYK-132) P/NO. T4019-81000  
18   
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EB4400  
Fig.1 CARBURETOR COMPONENTS (S/N 010001 and up)  
Key# Part Number  
Description  
Q'ty Key# Part Number  
Description  
Q'ty  
1
2
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  
1469-81250  
1751-81240  
—————  
—————  
5602-06020  
Body ass’y  
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  
Screen  
Valve  
3
4
Spring  
Screw  
Pin  
5
6
7
Lever  
8
Body  
9
Cover  
Pump  
Washer  
Swivel  
Ring  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26*  
27*  
28  
Gasket  
Diaphragm  
Gasket  
Diaphragm  
Screw  
Bracket  
Nut  
Screw  
Ring  
Screw  
Jet  
O-Ring  
Body  
Valve ass’y  
Gasket Kit  
(Key# 14,15,16,17)  
29  
5602-06030  
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. T4019-81000).  
19   
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Parts List : EB4400  
Fig.2 ENGINE GROUP (S/N 010001 and up)  
20   
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EB4400  
Fig.2 ENGINE GROUP (S/N 010001 and up)  
Key# Part Number  
Description  
Q'ty Key# Part Number  
Description  
Q'ty  
1
2
1490-12113  
2756-12210  
3310-12281  
1484-13160  
2756-13120  
2756-13130  
0263-90535  
1491-32110  
2750-12520  
T4019-15100  
Cylinder  
1
1
4
1
1
1
2
1
2
1
45  
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  
1487-75120  
1487-75140  
1861-75150  
1483-75270  
1487-75160  
1487-75170  
1400-75160  
1400-75170  
1487-75211  
3460-75510  
T4019-75610  
T4019-81000  
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  
• Reel  
1
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
Gasket, base  
Bolt M5x20  
Insulator  
Gasket  
• Dog  
3
• Washer  
• Screw  
4
5
• Retainer  
• Washer  
• Rope  
6
Gasket  
7
Screw  
8
Cover  
• Knob  
9
Bolt M5x10  
Pulley  
10  
Muffler ass’y  
(Tale pipe I.D. φ12)  
• Arrester  
Bolt M5x20  
Label  
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  
4810-15140  
2750-15210  
2750-15160  
2750-15170  
2756-21100  
2756-21140  
2810-21240  
T4019-21210  
1400-21220  
01252-30530  
04065-03515  
2750-21210  
1565-72211  
1483-41111  
1400-41220  
1490-41310  
3350-41320  
1400-41410  
2616-41510  
2756-42000  
1300-42410  
1400-43230  
1000-43240  
2750-71110  
2750-71200  
3350-14150  
1900-72112  
1900-72120  
5500-72130  
1497-73110  
1
1
Carburetor (WYK-132)  
Body ass’y  
• Plate  
Gasket  
Bolt M6x70  
Bolt M6x12  
Crankcase comp  
Gasket  
2
1
• Lever  
1
• Screw  
1
Cover ass’y  
• Knob  
Bearing 15x35x11  
Oil seal 15x25x7  
Oil seal 15x35x6  
Bolt  
3
1
• Ring  
1
Element  
Plate  
4
Snap ring  
Cover  
1
Screw  
1
Screen  
Bolt M4x16  
Piston φ40  
Ring  
1
Screw, Tapping φ5x6  
Label  
1
2
Bolt M6x40  
Piston pin  
Snap ring  
Bearing  
1
2
1
101  
102  
103  
104  
105  
106  
2756-05010  
2756-06010  
2750-96100  
3350-96220  
3350-96230  
2750-96240  
Short block  
Gasket kit  
Puller ass’y  
Stopper  
OP  
OP  
OP  
OP  
OP  
OP  
Washer  
2
Crankshaft comp  
Shim  
1
0~1  
2
Nut M10(P=1.0)  
Key  
Guide  
1
Gauge  
Rotor  
1
Coil ass’y  
Bolt M4x20  
Cap  
1
2
1
Spring  
1
Grommet  
1
Spark plug  
1
(Champion RJ6C)  
41  
42  
43  
44  
2756-71220  
2756-73200  
1487-75100  
1180-75221  
Cap  
1
1
1
1
Cord comp  
Recoil ass’y  
• Spring  
21   
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Parts List : EB4400  
Fig.3 BLOWER GROUP (S/N 010001 and up)  
22   
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EB4400  
Fig.3 BLOWER GROUP (S/N 010001 and up)  
Key# Part Number  
Description  
Q'ty Key# Part Number  
Description  
Q'ty  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
2750-31111 VOLUTE CASE  
2750-31211 VOLUTE COVER  
2750-31150 SCREW, Tapping φ5x25  
3490-11150 ELBOW  
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
2
1
1
1
1
1
1
1
1
51  
52  
3495-25420 • SPRING  
3495-25440 • WASHER  
1
1
1
2
1
1
1
2
1
1
1
1
1
1
1
1
1
53 01584-00605 • NUT  
54 3495-25450 • WASHER  
55 T4012-25510 • SWITCH  
56 T4012-83110 • CABLE COMP  
57 T3002-12240 • TUBE  
07000-02095 O-RING  
2750-31420 SCREW M5x70  
3310-53331 NUT, M5(Lock)  
T4012-31310 COVER INLET  
2750-31150 SCREW, Tapping φ5x25  
1140-72231 CLAMP  
3407-16120 SCREW, Tapping φ5x14  
2750-31290 TUBE  
2750-31911 LABEL  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
73  
74  
75  
2750-32540 BOLT M5x16 (Large Washer)  
2750-51110 HOSE  
2750-51200 SWIVEL JOINT  
6811-51210 PIPE, straight  
6811-51220 PIPE, end φ66  
2756-51220 PIPE, end φ57  
2756-51510 CLAMP  
14 T4012-32610 LABEL, net  
15  
16  
17  
18  
19  
2750-31510 FAN  
2756-51520 CLAMP  
3407-12210 BOLT M6x40  
2750-31612 ENGINE COVER  
2750-31150 SCREW, Tapping φ5x25  
2750-72230 CLAMP  
2750-51500 GRIP ASSY  
3495-51420 • WING BOLT  
3495-51430 • WING NUT  
3238-15230 • WASHER  
2750-91000 TOOL SET  
3540-91120 • SPANNER  
2750-91130 • SOCKET  
HBN-100 FLAT NOZZLE SET  
6811-51210 PIPE  
1
2
1
1
20 T4012-32000 FRAME ASSY  
21 T4012-32100 • FRAME COMP  
22  
23  
24  
25  
3490-21120 • RING  
3460-21311 PAD  
3495-21320 CLIP  
1
OP  
OP  
OP  
2756-32300 BAND ASSY  
6811-51230 FLAT NOZZLE  
26 T4012-32500 NET COMP  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
1480-74710 CLIP  
2750-32510 DAMPER,UPPER  
2750-32520 WASHER  
2750-32530 SCREW, Tapping φ5x40  
2750-32540 BOLT M5x16 (Large Washer)  
2750-32610 DAMPER,LOWER  
2750-32620 NUT M6  
2756-85101 TANK ASSY  
4500-85201 • CAP ASSY  
4500-85300 •• HOLDER ASSY  
4500-85220 •• PACKING  
5601-85260 •• FILTER  
2756-85300 • PIPE COMP  
3302-85400 • FILTER  
1260-85460 • CLIP  
3407-23610 SCREW M5x12 (Large Washer)  
1100-86120 CLIP  
44 T4012-25000 LEVER SET  
45 T4012-25100 • LEVER  
46  
47 01642-20508 • WASHER  
48 T4012-25210 • ARM  
49 T4012-25310 • BRACKET  
3310-53331 • NUT M5  
50  
3495-25410 • BOLT  
23   
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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 emission-  
related 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  
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Red Max BLOWERS  
MODEL EB4400  
2-YEAR LIMITED WARRANTY  
EMISSION-RELATED PARTS, FOR TWO (2) YEARS FROM THE DATE OF ORIGINAL DELIVERY OF THE MODEL  
EB4400, 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 HOME USE [ ONE (1) YEAR FOR ANY OTHER  
USE ] FROM THE DATE OF ORIGINAL ANY DELIVERY OF THE MODEL EB4400 UNIT, 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 NON-  
WARRANTY 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 HOME USE [ ONE (1) YEAR FOR ANY OTHER 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  
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RedMax BLOWERS  
Modèle EB4400  
Garantie limitée à 2 ans  
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 du modèle EB4400. 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 autres pièces exceptées celles mentionnées ci-dessus : La société, par l'intermédiaire de n'importe quel  
revendeur RedMax, réparera gratuitement ou remplacera gratuitement pour l'acheteur initial toute(s) pièce (s) se  
révélant de constitution et/ou de montage défectueux pendant deux (2) ans en cas d’utilisation privée [un (1) an pour  
toute autre utilisation] à compter de la date de livraison initiale d’une unité du modèle EB4400. 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, celles de négociabilité du produit et de son adaptabilité à un usage défini incluses, sont  
limitées à deux (2) ans pour un usage privé [un (1) an pour toute autre utilisation] à compter de la date initiale 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  
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KOMATSU ZENOAH AMERICA INC.  
4344 Shackleford Road Suite 500  
Norcross, Georgia 30093  
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