Zenoah HB250 Betriebsanleitung

The engine exhaust from this product

contains chemicals known to the State

of California to cause cancer, birth

defects or other reproductive harm.

WARNING

OWNER/OPERATOR MANUAL

HANDHELD BLOWER

848-L0F-93A0 (503)

HB250

Thank you for purchasing a RedMax

product.

Before using our blower, please read

this manual carefully to understand the

proper use of your unit.

DRIVE UNIT 40900101 and up ENGINE UNIT KU413473 and up

APPLICABLE SERIAL NUMBERS :

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.

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.

WARNING

IMPORTANT

NOTE

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

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

RECOMMENDED MIXING RATIO

HOW TO MIX FUEL

FUELING THE UNIT

OPERATION ·································································································· 11

STARTING ENGINE

RESTARTING ENGINE WHILE ENGINE HOT

STOPPING ENGINE

ADJUSTING IDLE SPEED

MAINTENANCE····························································································· 12

MAINTENANCE CHART

AIR CLEANER

FUEL FILTER

SPARK PLUG

MUFFLER

SPARK ARRESTER

AIR INLET SCREEN

PROCEDURES TO BE PERFORMED AFTER EVERY 100 HOURS OF USE

STORAGE ····································································································· 14

TROUBLESHOOTING GUIDE ······································································ 14

PARTS LIST ·································································································· 15

•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.

■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.

Safety Precautions

•Wear a face mask to guard against the

inhalation of dust.

•Wear rubber-soled shoes or shoes with

some other form of anti-slip protection to

help protect you against falling.

•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.

4

•Never use the blower without the

screen at the air intake of the blower.

Before each use, check that, the

screw(1) is securely tightened and is

free from any damage.

•Never remove debris from the intake

screen while the engine is running.

Contact with rotating blower fan may

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.

•All engine service except for those

WARNING

Safety Precautions

described in this manual should be

performed by competent service

personnel. Improper service to the blower

fan and muffler could cause a hazardous

failure.

■WORKING CONDITION

•Keep open flames and sparks away from

the area where fuel is handled or stored,

as the fuel is highly flammable.

•Make sure that the engine has cooled

down before refueling.

•Mix and store fuel only in a approved

container.

•Never smoke while refueling the blower.

•Wipe off any spilled fuel and tighten the

fuel cap securely.

•Move at least 3m(10ft) 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.

WARNING

5

6

•Keep operation area clear of all persons,

particularly small children and pets. Injury

may result from flying debris.

•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.

•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.

■AVOID NOISE PROBLEM

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.

•In dusty conditions, slightly dampen

surfaces.

•Check if the air filter, air intakes and

muffler are working in properly.

•Never use more than one unit of the

blower at one 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.

NOTE

Safety Precautions

7

Symbols on the machine

CE MOTEUR EST CONFORME A LA REGLEMENTATION U.S. EPA 2005 POUR LES PETITS

MOTEURS HORS-ROUTE. DUREE DE CONFORMITE DES EMISSIONS : CATEGORIE C.

SE REFERER AU MODE D’EMPLOI POUR DE PLUS AMPLES INFORMATIONS.

FAMMILLE DE MOAMMILLE DE MOTEUR :TEUR : 5KZXS.0254VW5KZXS.0254VW;EM;EM

CYLINDREE : 25cm3DATE DE FABRICAABRICATION :TION :

INFORMAINFORMATION IMPORTION IMPORTANTE CONCERNANT LE MOANTE CONCERNANT LE MOTEURTEUR

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 A to close the choke

The direction B to open the choke

Position: AIR CLEANER COVER

Parts Location & Specifications

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.

MODEL HB250

Dimensions ( L x W x H ) mm ( in ) 327 x 273 x 360 (12.9 x 10.7 x 14.2)

Dry Weight

(without tube and nozzle)

kg ( lbs ) 3.8 (8.3)

Fuel Tank Capacity liter ( fl. oz ) 0.65 (22.0)

Engine Type Air cooled 2-cycle gasoline engine

Piston Displacement cm3( cu. in ) 25.4 (1.60)

Durability Period 50h

Carburetor Walbro Diaphragm type

Ignition System CDI

Spark Plug NGK BPMR7A

Muffler Spark arrester equipped

Operating Engine Speed rpm 2.800 ~ 7.800

Idle Speed rpm 2.800

Max. Air Volume (with std. pipe) cu. m/min ( cfm ) 10.3 (364)

Max. Air Volume (w/o pipe) cu. m/min ( cfm ) 11.1 (392)

Max. Air Velocity m/sec ( mph ) 57 (127)

Noise Level

(50 Feet ANSI B175-2) dB (A) 73

8

9

Fuel

■RECOMMENDED MIXING RATIO

GASOLINE 50:OIL 1

•Exhaust emission are controlled by the

fundamental engine parameters and

components(eq., carburation, ignition

timing and port timing) without

addition of any major hardware or the

introduction of an inert material during

combustion.

•These engines are certified to operate on

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

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

IMPORTANT

•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 water-

cooling type) mixed oil.

WARNING

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 1 2 3 4 5

2-CYCLE OIL ml 20 40 60 80 100

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.

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

WARNING

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.

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 the

mixed gasoline, etc. described therein, it

may not be covered by the warranty.

NOTE

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