RedMax HB250 User Manual

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 

WARNING

 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