RedMax Blower HBZ2500 User Guide

T4022-96110 (111)  
OWNER/OPERATOR MANUAL  
HANDHELD BLOWER  
HBZ2500  
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.  
APPLICABLE SERIAL NUMBERS :  
DRIVE UNIT 100101 and up  
ENGINE UNIT 100101 and up  
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CONTENTS  
SAFETY PRECAUTIONS················································································ 4  
OPERATOR  
USE OF BLOWER  
WORKING CONDITION  
AVOID NOISE PROBLEM  
AVOID CHANCES OF DAMAGE  
SYMBOLS ON THE MACHINE······································································· 7  
PARTS LOCATION & SPECIFICATIONS ······················································· 8  
ASSEMBLY······································································································ 8  
BLOWER PIPE  
FUEL················································································································ 9  
HOW TO MIX FUEL  
FUELING THE UNIT  
OPERATION·································································································· 10  
STARTING ENGINE  
RESTARTING ENGINE WHILE ENGINE HOT  
STOPPING ENGINE  
ADJUSTING IDLE SPEED  
MAINTENANCE····························································································· 11  
AIR CLEANER  
FUEL FILTER  
SPARK PLUG  
MUFFLER  
SPARK ARRESTER  
AIR INLET SCREEN  
HOW TO INSTALL THE AIR INLET SCREEN TO THE VOLUTE COVER  
STORAGE ····································································································· 13  
TROUBLESHOOTING GUIDE ······································································ 14  
PARTS LIST ·································································································· 15  
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Safety Precautions  
• Wear rubber-soled shoes or shoes with  
some other form of anti-slip protection to  
help protect you against falling.  
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 wear proper work clothing.  
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.  
• 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.  
• Always wear eye protection goggles.  
• Always wear ear protectors to protect your  
ears from engine noise. If this guideline is  
not followed, hearing loss can occur.  
• Wear a face mask to guard against the  
inhalation of dust.  
4   
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Safety Precautions  
• 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.  
WARNING  
Never use the blower without the screen  
at the air intake of the blower. Before  
each use, check that the screen is  
attached in place and is free from any  
damage.  
WORKING CONDITION  
WARNING  
• Keep open flames and sparks away from  
the area where fuel is handled or stored, as  
the fuel is highly flammable.  
WARNING  
• Make sure that the engine has cooled down  
before refueling.  
• Mix and store fuel only in a approved  
container.  
• Never remove debris from the intake  
screen while the engine is running.  
Contact with rotating blower fan may  
• Never smoke while refueling the blower.  
• Wipe off any spilled fuel and tighten the fuel  
cap securely.  
• Move at least 3m(10 ft) away from the  
fueling spot before starting the engine.  
• 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.  
• Avoid running the engine indoors. The  
exhaust gases contain harmful carbon  
monoxide.  
result in a serious personal injury.  
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.  
• When suspending a job or inspecting the  
blower, be sure to stop engine.  
• 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.  
5   
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Safety Precautions  
• Keep operation area clear of all persons,  
particularly small children and pets. Injury  
may result from flying debris.  
AVOID NOISE PROBLEM  
NOTE  
• Avoid using the blower where stable footing  
and balance are not assured.  
• Never 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.  
• In general, operate blowers between  
8a.m.and 5p.m.on week day and 9a.m.to  
5p.m.weekends. Avoid using blower late at  
night and/or early in the morning.  
Loosen compacted leaves, grass or debris  
with a rake or broom beforehand, so that  
the lowest possible throttle setting would  
get the job done.  
• Never 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.  
• In dusty conditions, slightly dampen  
surfaces or use mister attachement when  
water is available.  
Check if the air filter, air intakes and muffler  
are working in properly.  
Never use more than one unit of the blower  
at a time.  
AVOID CHANCES OF DAMAGE  
• Avoid directing the blower nozzle toward  
persons, pets, cars, windows or anything  
that could be harmed by blowing debris or  
dust.  
• Keep the nozzle at full extension when  
operating so as to make the air stream  
close to the ground.  
Collect any trash and leaves and put them  
into a proper container after the job is  
done.  
Always check to be sure that no debris has  
been blown onto someone else’s property.  
6   
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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 take a mistake.  
(a) The port to refuel the "MIX GASOLINE"  
Position: FUEL TANK CAP  
(b) The direction to close the choke  
Position: AIR CLEANER BODY  
(c) The direction to open the choke  
Position: AIR CLEANER BODY  
INFORMATION IMPORTANTE CONCERNANT LE MOTEUR  
Ce moteur est conformc aux normcs U.S. EPA PH2 et 2001  
ainsi qu’aux autres dispositions ultérieures de la réglementation  
concernant la pollution de l’air pour les petits moteurs tout-terrain  
avec une période de accordable : CATEGORY A  
IMPORTANT ENGINE INFORMATION  
THIS ENGINE MEETS U.S. EPA PH2 AND 2001  
CALIFORNIA EMISSION REGULATIONS FOR SI  
SORE’s COMPLIANCE PERIOD : CATEGORY A  
ENGINE FAMILY : 1KZXS.0254QR ; EM  
ENGINE DISPLACEMENT : 25.4cc  
REFER TO OWNER’S MANUAL FOR MAINTE-  
NANCE SPECIFICATIONS AND ADJUSTMENTS.  
Type de moteur : 1KZXS.0254QR :EM  
Cylindrée du moteur : 25,4cc  
Se référer au Manuel de l’utilisateur pour les  
spécifications d’entretien et les réglages.  
KOMATSU ZENOAH CO. MADE IN JAPAN  
KOMATSU ZENOAH CO. MADE IN JAPAN  
Use RedMax 50:1 Oil !  
Use RedMax 50:1 Oil !  
7   
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Parts Location & Specifications  
MODEL HBZ2500  
Dimensions ( L x W x H )  
Dry Weight (without tube and nozzle)  
Fuel Tank Capacity  
Engine Type  
mm ( in )  
kg ( ibs )  
327 x 273 x 360 (12.9 x 10.7 x 14.2)  
3.8 (8.4)  
liter ( fl. oz )  
0.65 (22.0)  
Air cooled 2-cycle gasoline engine  
3
Piston Displacement  
Durability Period  
Carburetor  
cm ( cu. in )  
25.4 (1.60)  
300h  
Walbro Diaphragm type  
CDI  
Ignition System  
Spark Plug  
NGK CMR7A  
Spark arrester equipped  
2.800 ~ 7.890  
2.800  
Muffler  
Operating Engine Speed  
Idle Speed  
rpm  
rpm  
Max. Air Volume  
Max. Air Velocity  
Noise Level (ANSI B175.2-2000)  
cu. m/min ( cfm )  
m/sec ( mph )  
db ( A )  
10.4 (367)  
70 (157)  
69  
Assembly  
BLOWER PIPE  
• Align groove in blower pipe with projection on  
blower housing (or another blower pipe) and  
slide the pipe onto the blower housing (or  
another blower pipe).  
Rotate the pipe clockwise to lock it into place.  
8   
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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)  
9   
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Operation  
STARTING ENGINE  
RESTARTING ENGINE WHILE ENGINE IS HOT  
1. Rest the unit on a flat, firm place.  
2. Pump the primer until fuel flows out in the  
clear tube.  
1. When restarting the engine immediately  
after stopping it, leave the choke open.  
2. If the engine won't start after several  
attempts, close the choke and repeat  
pulling the rope or remove the spark plug  
and dry it.  
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.  
3. Move the choke lever upward to close the  
choke.  
NOTE  
Except for an emergency, avoid stopping the  
engine while pulling the throttle lever.  
4. Holding the blower handle, pull the starter  
rope with your right hand. (Throttle lever in  
idling position.)  
ADJUSTING IDLE SPEED  
1. When the engine tends to stop frequently  
at an idle mode, turn the adjusting screw  
clockwise.  
NOTE  
Avoid pulling the rope to its dead end or  
returning it by releasing the knob. Such  
actions can cause starter failures.  
NOTE  
Warm up the engine before adjusting the idle  
speed.  
5. When the engine has started, move the  
choke lever gradually downward to open  
the choke.  
6. Allow the engine to warm up for a half  
minute before starting operation.  
10   
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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  
• 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  
CLEANING AIR FILTER:  
• 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 .025in.(0.6~0.7mm).  
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. 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.  
• Plug manufacturers recommend replacing  
the plug twice a year to avoid unexpected  
plug failure in a job.  
REPLACEMENT PLUG IS A NGK CMR7A.  
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.  
11   
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Maintenance  
MUFFLER  
AIR INLET SCREEN  
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  
screen. When air flow has dropped down  
during operation, stop the engine and  
inspect the air inlet screen for blocking by  
obstacles.  
• Note that failing to do so may result in  
the engine catching on fire.  
• 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 two bolts to the cylinder. (Fastening  
Torque: 70~110kg·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  
Never use the blower without the screen  
at the air intake of the blower. Before  
each use, check that the screen is  
attached in place and is free from any  
damage.  
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.  
12   
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Maintenance  
HOW TO INSTALL THE AIR INLET  
SCREEN TO THE VOLUTE COVER  
Put the mark of the air inlet screen to the  
mark of the volute cover in line.  
• Turn the air inlet screen clockwise (arrow  
direction) and make sure it is firmly  
installed.  
PROCEDURES TO BE PERFORMED  
AFTER EVERY 100 HOURS OF USE  
• Remove the muffler, insert a screwdriver  
into the vent, and wipe away any carbon  
buildup. Wipe away any carbon buildup on  
the muffler exhaust vent and cylinder  
exhaust port at the same time.  
• Tighten all screws, bolts, and fittings.  
• Install the screw through the stopper to  
insure that the air inlet screen does not  
move  
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 install  
the spark plug.  
13   
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Troubleshooting guide  
Case 1. Starting failure  
CHECK  
PROBABLE CAUSES  
ACTION  
drain it and with correct fuel  
clean  
fuel tank  
fuel filter  
incorrect fuel  
fuel filter is clogged  
carburetor adjustment screw out of normal range  
adjust to normal range  
clean/dry  
sparking (no spark)  
spark plug is fouled/wet  
plug gap is incorrect  
disconnected  
correct (GAP: 0.6~0.7mm)  
retighten  
spark plug  
Case 2. Engine starts but does not keep running/Hard re-starting.  
CHECK  
PROBABLE CAUSES  
ACTION  
fuel tank  
incorrect fuel or staled fuel drain it and with correct fuel  
carburetor adjustment screw  
muffler,cylinder (exhaust port) carbon is built-up  
air cleaner clogged with dust  
out of normal range  
adjust to normal range  
wipe away  
wash  
When your unit seems to need further service, please consult with our RedMax service shop in your area.  
14   
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Parts List  
HANDHELD BLOWER  
HBZ2500  
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.]  
Nov. 2001  
APPLICABLE SERIAL NUMBERS :  
DRIVE UNIT 100101 and up  
ENGINE UNIT 100101 and up  
15   
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Parts List  
Fig.1 ENGINE GROUP HBZ2500  
16   
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Fig.1 ENGINE GROUP HBZ2500  
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  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
4810-12111 CYLINDER  
4810-12210 GASKET  
4820-12130 BOLT TORX, M5x22  
4810-13162 INSULATOR  
T1512-13120 GASKET, INSU  
4810-13130 GASKET, CARB  
4820-13180 BOLT TORX, M5x20  
4810-16100 REEDVALVE-A(S)  
4810-16110 • VALVECASE(S)  
4810-16120 • REEDVALVE  
4810-16130 • STOPPER  
4810-16170 • SCREW, M3x8  
4810-16150 PIPE, AIR S  
4810-16200 REEDVALVE-A(F)  
4810-16210 • VALVECASE(F)  
4810-16120 • REEDVALVE  
4810-16130 • STOPPER  
4810-16170 • SCREW, M3x8  
4810-16160 PIPE, AIR F  
4810-16140 GASKET, VALVE  
4820-16310 BOLT TORX, M4x10  
4810-21101 CRANKCASE-C  
2629-21130 • PIN  
1
1
2
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
2
6
1
3
1
2
1
1
1
3
1
2
1
2
1
2
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
73  
1751-81510 • PUMP, priming  
4810-81251 • JET, #38.5  
1751-81240 • O-RING  
1
1
1
1
1
2
1
1
1
4
1
2
1
1
1
1
2
1
1
1
1
1
1
1
1
1751-81130 • RING  
1881-81140 • SWIVEL  
1752-81110 • SCREW  
5500-81120 • BRACKET  
1751-81180 • NUT, adjuster  
1918-81170 • SCREW, adjuster  
1850-81530 • SCREW  
5500-81160 • WASHER  
4820-82310 BOLT TORX, M5x60  
1950-86120 CLIP  
74 T1513-15100 MUFFLER-A  
75 T1513-15110 • MUFFLER  
76  
77 T4950-57030 BOLT TORX, M5x70  
78 T1513-15210 GASKET, MUFF  
79 T2070-72210 CAP  
80  
81  
82  
4810-15140 • ARRESTER  
1900-72120 SPRING  
4810-71240 CORD  
4810-71250 CORD EARTH  
83 T1513-71320 TUBE  
84  
85  
4810-21140 GASKET, CASE  
4810-73110  
SPARK PLUG, NGK CMR7A  
25 06030-06001 BEARING  
26  
27  
5500-72130 GROMMET  
4810-21210 SEAL  
1850-21220 SEAL  
87  
88  
89  
90  
91  
92  
93  
94  
95  
96  
97  
4810-75100 RECOIL-A  
4500-75120 • REEL  
4500-75150 • SCREW  
1850-75130 • SPRING  
4500-75180 • COLLAR  
4500-75190 • ARM  
4810-75160 • ROPE  
3330-75421 • KNOB  
4810-75170 • PLATE  
4500-75210 PULLEY  
4820-85510 BOLT TORX, M5x16  
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
1
28 04065-02812 SNAPRING  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
4820-21310 BOLT TORX, M5x30  
4810-41110 PISTON  
5910-41210 RING  
1600-41310 PIN  
1260-41320 SNAPRING  
5500-41410 BEARING  
1101-41340 WASHER  
4810-42000 CRANKSHAFT-C  
1000-43240 KEY  
5516-43230 EXTENTION  
4810-71110 ROTOR  
98 T1513-82100 BODY-A  
99 T1512-82130 • PLATE, CHOKE  
100 T1600-82140 • LEVER  
101 T1108-82190 • SCREW  
102 T1513-82170 ELEMENT  
103 T1513-82180 PLATE  
104 T1513-82200 COVER-A  
105 T1108-82220 • KNOB  
40 T1513-71200 COIL-A  
41 T1513-71220 • CORD  
42  
43  
44  
45 T1513-81000  
46  
47  
2616-71320 • CAP  
1260-71261 SPACER  
4820-72150 BOLT TORX  
CARBURETOR-A, WYA-26  
4810-06030 • REBUILD KIT  
4810-81450 •• BODY ASS’Y  
106  
5516-83101 CABLE  
107 T1504-85001 TANK-A  
108 T1015-85202 • CAP-A  
••• SCREEN  
••• VALVE  
••• SPRING  
••• PIN  
109  
110  
111  
112  
113  
114  
115  
116  
117  
4500-85300 •• HOLDER-A  
4500-85220 •• PACKING  
5601-85260 •• FILTER  
4820-85260 •• STOPPER  
4810-85300 • PIPE-C  
5500-85400 • FILTER-A  
1260-85460 • CLIP  
4820-85510 BOLT TORX, M5x16  
1133-82060 LABEL, CHOKE  
••• LEVER  
53  
4810-06021 •• GASKET KIT  
••• DIAPHRAGM  
••• GASKET, diaphragm  
••• DIAPHRAGM, pump  
••• GASKET, pump  
••• RING  
59  
60  
1850-81490 • BODY, purge  
1850-81520 • COVER, pump  
17   
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Parts List  
Fig.2 BLOWER GROUP HBZ2500  
18   
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Fig.2 BLOWER GROUP HBZ2500  
Key# Part Number  
Description  
Q'ty Key# Part Number  
Description  
Q'ty  
1
2
3
4
5
6
7
8
9
6811-11110 VOLUTE CASE  
T4022-11300 VOLUTE COVER-A  
1600-33130 SCREW  
1
1
3
12  
1
1
1
1
1
1
2
4
1
1
2
1
1
1
1
1
T4970-52001 SCREW TORX  
6811-11130 GURG NET  
6811-11160 STOPPER  
T4970-51410 SCREW TORX  
6811-11150 LEVER  
6811-72200 SWITCH  
10 T4022-11210 ENGINE COVER  
11 4820-85510 SCREW TORX  
12 T4960-53510 SCREW TORX  
13  
14  
15  
6811-12110 FAN  
1650-43230 182301 NUT  
6811-12220 WASHER  
16 T4022-19110 LABEL, CAUTION  
17 T4022-75610 LABEL, RECOIL  
18  
19  
6811-51210 PIPE CT2-18  
6811-51220 PIPE, END CT2-19  
20 T4017-91130 SOCKET  
OPTION  
HBN-100 FLAT NOZZLE SET  
21  
22  
23  
1
1
1
6811-51210 PIPE  
6811-51230 FLAT NOZZLE  
19   
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CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT  
YOUR WARRANTY RIGHTS AND OBLIGATIONS  
THE CALIFORNIA AIR RESOURCES BOARD AND KOMATSU ZENOAH Co. ARE PLEASED TO  
EXPLAIN THE EMISSION CONTROL SYSTEM WARRANTY ON YOUR 1995 AND LATER LAWN AND  
GARDEN EQUIPMENT ENGINE. IN CALIFORNIA, NEW UTILITY AND LAWN AND GARDEN  
EQUIPMENT ENGINES MUST BE DESIGNED, BUILT AND EQUIPPED TO MEET THE STATE'S  
STRINGENT ANTI-SMOG STANDARDS.  
KOMATSU ZENOAH Co, MUST WARRANT THE EMISSION CONTROL SYSTEM ON YOUR LAWN AND  
GARDEN EQUIPMENT ENGINE FOR THE PERIODS OF TIME LISTED BELOW PROVIDED THERE HAS  
BEEN NO ABUSE, NEGLECT OR IMPROPER MAINTENANCE OF YOUR LAWN AND GARDEN  
EQUIPMENT ENGINE.  
YOUR EMISSION CONTROL SYSTEM MAY INCLUDE PARTS SUCH AS THE CARBURETOR, THE  
IGNITION SYSTEM, AND CATALYTIC CONVERTER. ALSO INCLUDED MAY BE THE HOSES, BELTS,  
CONNECTORS AND OTHER EMISSION-RELATED ASSEMBLIES.  
WHERE A WARRANTABLE CONDITION EXISTS, KOMATSU ZENOAH Co. WILL REPAIR YOUR LAWN  
AND GARDEN EQUIPMENT ENGINE AT NO COST TO YOU INCLUDING DIAGNOSIS, PARTS AND  
LABOR.  
MANUFACTURER'S WARRANTY COVERAGE:  
THE 1995 AND LATER UTILITY AND LAWN AND GARDEN EQUIPMENT 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 Co.  
OWNER'S WARRANTY RESPONSIBILITIES:  
—AS THE LAWN AND GARDEN EQUIPMENT ENGINE OWNER, YOU ARE RESPONSIBLE FOR  
THE PERFORMANCE OF THE REQUIRED MAINTENANCE LISTED IN YOUR OWNER'S  
MANUAL. KOMATSU ZENOAH Co. RECOMMENDS THAT YOU RETAIN ALL RECEIPTS  
COVERING MAINTENANCE ON YOUR LAWN AND GARDEN ENGINE, BUT KOMATSU  
ZENOAH Co. CAN NOT DENY WARRANTY SOLELY FOR THE LACK OF RECEIPTS OR FOR  
YOUR FAILURE TO ENSURE THE PERFORMANCE OF ALL SCHEDULED MAINTENANCE.  
—AS THE LAWN AND GARDEN EQUIPMENT ENGINE OWNER, YOU SHOULD HOWEVER BE  
AWARE THAT KOMATSU ZENOAH Co. MAY DENY YOU WARRANTY COVERAGE IF YOUR  
LAWN AND GARDEN EQUIPMENT ENGINE OR A PART HAS FAILED DUE TO ABUSE,  
NEGLECT, IMPROPER MAINTENANCE OR UNAPPROVED MODIFICATION.  
—YOU ARE RESPONSIBLE FOR PRESENTING YOUR LAWN AND GARDEN EQUIPMENT  
ENGINE TO A KOMATSU ZENOAH Co. DISTRIBUTION CENTER AS SOON AS A 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 RIGHTS AND RESPONSIBILITIES,  
YOU SHOULD CONTACT KOMATSU ZENOAH AMERICA INC. AT (770)-381-5147.  
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RedMax  
MODEL HBZ2500  
2-YEAR LIMITED WARRANTY  
EMISSION-RELATED PARTS; FOR TWO (2) YEARS FROM THE DATE OF ORIGINAL DELIVERY OF THE MODEL  
HBZ2500 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, SPARK PLUG,  
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 HBZ2500 UNIT, THE COMPANY, THROUGH  
ANY RedMax DEALER, WILL REPAIR OR REPLACE, FREE OF CHARGE, FOR THE ORIGINAL PUSHCHASER, ANY  
PART OR 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 REPLACEMENT POINT FOR THAT PART.  
ANY REPLACEMENT PART THAT IS EQUIVALENT IN PERFORMANCE AND DURABILITY 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 FAILURE OF A  
WARRANTED PARTS STILL UNDER WARRANTY.  
THIS 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 LUBRICATION, USE OF ANY PARTS OR ACCESSORIES  
OTHER THAN THOSE SPECIFIED BY THE COMPANY, OR OTHER CAUSES BEYOND THE COMPANY'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 LIMITATION 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 ZENOAH 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  
Modèle HBZ2500  
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 HBZ2500. 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 HBZ2500. 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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