Nakayama BL2500 User manual

MODEL:BL2500
BLOWER WITH VACUUM KIT
WARNING
Always wear eye and hearing protection when operating this
machine. Minimize the risk of injury : Read this manual and
familiarize yourself with its contents. This product is intended for
outdoor use only and should be used only in well ventilated area.

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INTRODUCTION
EBV260 engine blower has been designed and built to deliver
superior performance and reliability without compromise to
quality, compromise to quality, comfort, safety, or durability
EBV260 high performance engines represent the leading edge
of 2-cycle engine technology, delivering exceptionally high
power at remarkably low displacement and weight . As a
professional owner/operator, you’ll soon discover why EBV260
is simple in a class by itself!
IMPORTANT!
The information contained in this manual describes available at
the time of production. While every attempt has been made to
give you the very latest information about your EBV260,there
may be some differences between your machine and what is
described here . We reserves the right to make changes in
production without prior notice, and without obligation to make
alterations to machines previously manufactured. Before using
this product, consult local regulation noise restrictions and hours
of operation.

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CONTENTS
Attention Statements ………………………
Product Description ………………………
Specifications ………………………………
Assembling the Machine ……………………
Mixing Fuel …………………………………
Filling the Fuel Tank …………………………
Starting the Machine …………………………
Adjusting Engine Speed ……………………
Routine Maintenances ………………………
Storage ………………………………………
Troubleshooting ………………………………
CAUTION!
This EBV260 engine machine is equipped
with a speak-
arresting muffler. Never
operate this machi
ne without both the
muffler and spark arrestor installed and
properly functioning!
3
5
6
7
9
11
12
14
16
18
19

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ATTENTION STAEMENTS
This manual contains special “attention statements” surrounded
by boxes and preceded by the triangular Attention Symbol
Additional attention statements that are not preceded by the
Attention Symbol are:
IMPORTANT!
A statement preceded by the word “IMPORTANT” is one that
possesses special significance.
NOTE:
A statement proceeded by word “NOTE” contains information
that is handy to know and may make your job easier.
·Special safety precautions must be observed when
working with the power tool.
·Read this user’s manual carefully before using this
machine
·Wear eye and earing protection
WARNING!
A statement preceded by
WARNING contains
Information that should be
acted upon to prevent
serious bodily injury.
CAUTION!
A statement preceded by
the word “CAUTION”
contains information that
should be acted upon to
prevent machine damage.

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·Never operate this machine when you are
fatigued,ill or under the influence of alcohol.
·
Never smoke when working with this
machine
·Never allow children or anyone unable to fully
understand the manual to use this machine
·Clothing must be sturdy and snug-fitting,
but allow complete freedom of movement— the
safety clothing is recommended.
·Wear heavy-duty, nonslip gloves, preferably
made of chrome leather.
·Unit vibrations can cause an improperly tightened
fuel cap to loosen or come off and spill quantities
of fuel.
In order to reduce risk of fuel spillage and fire,tighten fuel cap.
·Warning！Your blower produces toxic exhaust
fumes when the engine is running.These gases
(e.g. carbon monoxide) may be colorless and
odorless. To reduce the risk of serious or fatal
injury from breathing toxic fumes, never run the blower indoors

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or in poorly ventilated locations.
·Danger form rotating impeller! Stop the engine
before installing or removing the machine tubes!
Never perform any maintenance or assembly
procedures on this machine while the engine is
running.
·Never direct the machine stream toward people or
animals!
·Operate the machince only at reasonable hours-not early in the
morning or late at night when people might be disturbed.
Comply with times listed in local ordinanes.
·Use rakes and machine at the lowest possible engine speed to
do the job.
·In dusty conditions, slightly dampen surfaces or use mister at
tachment if available.
·Use the full blower nozzle extension so the air stream can
work close to the ground.
·Watch out for children,pets,open windows etc.and blow debris
safely away.
PRODUCT DESCRIPTION!
The operational procedures described in this manual are
intended to help you get the most from your machine and to
protect you and others from harm. These procedures are general
guidelines only, and are not intended to replace any safely
rules/laws that may be in force in your area. If you have any
question regarding your EBV260 blower vacuum, or if you do

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not understand something in this manual, your dealer will be
glad to assist you.
WARNING!
Do not make unauthorized
Modifications to this machine
SPECIFICATIONS
Model………………………………………EBV260
Dimensions(L×W×H)………………570×290×410
Engine Type……………………………BF26FB
Cylinder Diameter………………………34mm
Displacement……………………………26cc
Fuel…………………………Gasoline/oil mixture 40:1
Carburetor…………Membrane type primer pump
Way of ignition……………………………CDI
Spark plug…………………………………L7RTC
Starting……………………………………Recoil starter
Fuel Tank Capacity………………………0.5L
N.W………………………………………5.8kg
G.W………………………………………7.3kg
Rated Power (KW/r/min)………………0.7/7000
Idle speed (r/min)：……………………3000±200

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ASSEMBLING THE MACHINE
1. Assembling the vacuum
(1)Nomenclature
Inhale pipe NO.1
Handle
Tank
Inhale pipe NO.2
Lower handle
Dust bag
(2)Assembly
Open the fan
cover, connect
inhale pipe No.1
and No.2
Insert discharging pipe into
dust bag from the jaws of the
slide fastener according to the
picture discharging pipe.

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discharging pipe
Put the discharging pipe to the machine.
2. Install blower machine
(1)Terms
Herein, use screw M5
×
10
to reinforce.
Stop switch
Throttler lever handle
Cleaner cover
Lower handleFuel tank
Starter handle

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(2)Install
Put blow pipe B to the machine Put blow A to B by
by rotating rotating
IMPORTANT!
Mix only enough fuel for your immediate needs! If fuel must be
stored longer than 30-days,it should first be treated with a
stabilizer or equivalent product!
MIXING FUEL
Fuel requirements
□Use only fresh, clean fuel
□Use only fuel with an octane rating of 90 or high
□Mix all fuel with premium 2-cycles engine oil at a
gasoline/oil ratio of 40:1
Blow pipe B
Blow pipeA
Use screw M5
×
10 to
reinforce

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CAUTION!
Never attempt to mix fuel in the machine fuel tank! Always mix
all fuels in a clean. approved container!
Some gasoline contain alcohol as an oxy genated! Oxy genated
fuels may cause increased engine operating temperatures! Under
certain conditions, alcohol-based fuels may also reduce the
lubricating qualities of some mixing
oils! Never use any fuel containing more than 10% alcohol by
volume! When an oxygenated fuel must be used fuel containing
an ether-based oxygenates such as MTBE is to be
preferred over alcohol!
Whenever possible use 2-cycle oil or equivalent oil mixed at a
40:1 ratio. Be aware that generic oils and some outboard mixing
oils may note intended for use in high-performance air cooled
2-cycle engines, and should never be used in your engine
machine.
WARNING
Danger of fire! Never transfer or store fuels in the presence
Of combustible materials! Before starting the engine, always
move the machine to a clear area at least 10-
feet
(3-meters) away form fuels and other combustible materials!

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IMPORTANT!
Mix only enough fuel for your immediate needs! If fuel must be
stored longer than 30-days, it should first be treated with a
stabilizer or equivalent product!
FILLING THE FUEL TANK Remove the fuel cup
WARNING!
Danger of fire and burn injury!
□Always use extreme care when handling fuel! Fuel is highly
flammable!
□Never operate this blower if fuel system components are
damaged or are leaking!
□Never attempt to refuel the engine while it is running !
□Never attempt to refuel a hot engine! Always allow the
blower engine to cool before fueling!
□Never smoke or light any fires near the blower or fuel!
□Always transport and store fuels in an approved container!
□Never place flammable maternal close to the engine muffler!
□Never operate the blower without a properly functioning
muffler and spark arrestor installed!
□Never operate the blower unless it is properly assembled and
in good working condition!

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1. Place the machine on the ground or on a sturdy work surface,
and wipe any debris from around the fuel cap.
2. Remove the fuel cap.
3. Fill the tank with clean, fresh fuel.
4. Replace the cap, and wide away any spilled fuel before
starting the machine.
STARTING THE MANCHINE
WARNING!
The recoil starter can be damaged by abuse!
<Never pull the starter cord to its full length!
<Always engage the starter before cranking the engine!
<Always rewind the starter cord slowly!
Never operate the machine if the tubes are missing or damaged
Starting procedure
1. Prime the fuel system by repeatedly depressing the fuel
primer bulb until no air bubbles are visible in the fuel
discharge line.
2. Cold engine only. Choke the engine by pulling the choke
control to the fully extended position ( choke is closed)
3. Place the machine on the ground, and hold the machine
handle firmly with your right hand .
4. Pull the starter cord slowly until you feel the engine.
5. Start the machine by pulling the starter cord upward rapidly.
If necessary, repeat step 5 two or three times until the engine
starts.
When the engine starts
IMPORTANT
For maximum vacuum performance and operating life, allow the
engine to warm before use.

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1. Run the engine at idle speed until operating temperature is
reached(2 to 3 minutes)
2. As the engine warms, open the choke gradually by slowly
pushing the choke control in to the fully retracted position.
3. The machine should now be ready for use.
If the engine dose not start
Repeat the appropriate starting procedures for “hot” or “cold”
engine. If the engine still will not start, follow the “Starting a
Flooded Engine” procedure (below).

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WARNING!
Incorrect spark plug installation
Can result in serious engine
damage!
Starting a flooded engine
1. Disconnect the spark plug lead, and use the spark plug
wrench to remove the plug in a counterclockwise direction.
2. If the spark plug is fouled or is soaked with fuel, clean or
replace the plug as required.
3. Clean excess fuel form the combustion chamber by cranking
the engine several times while the spark is removed.
4. Install the spark plug and firmly tighten it with the spark
plug wrench. If a torque wrench. If a torque wrench is
available, torque the spark plug to 148-165 inch-pounds.
Reconnect the spark plug lead.
5. Repeat the starting procedures for “ warm engine”
6. If the engine still fails to fire or start, refer to the
troubleshooting flowchart at the end of this manual.
ADJUSTING ENGING IDLE SPEED
Choke rod
Idle speed adjustment screw

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1. Start the engine by following the procedures described on the
preceding pages.
2. Run the engine at idle speed until operating temperature is
reached (2-3 minutes)
3. Use a screwdriver to adjust the engine idle speed to
3000±200r/min
□Turn the idle screw clockwise to increase engine idle speed.
□Turn the idle screw counterclockwise to decrease engine idle
speed.
IMPORTANT!
Machine tubes and intake cover must be installed while
adjusting engine idle! Engine idle speed will also be affected if
either the intake cover or machine tubes are blocked, damaged
or incorrectly installed!
STOPPING THE ENGINE
1. Cool the engine by allowing it to run at idle for 2 to 3
minutes.
2. Stop the engine by pulling the stop switch.
(1) Machine noise increases at higher throttle setting!
Always use the lowest throttle setting required to get the
job done!
(2) Never operate the blower when visibility is poor.
(3) Always wear eye protection such as face shield or
goggles while operating this machine.
(4) Wear a dust mask to reduce the risk of inhalation injures.
(5) Wear close-fitting clothing to protect your legs and arms.
(6) Wear hearing protection when operating this machine.
(7) Never operate the blower if any component parts are
damaged, loose, or missing.

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1Using the vacuum
When using the blower vac.,examine
the collection bag timely.When it is full,
pleade open the zip on the collection
bag and clear it.
2 Using the blower
Always be aware of the
strength and direction of stream.
Never direct the blower discharge
stream toward people or animals.
□Remove dirt and debris from the blower exterior.
□Inspect the engine, tank ,and hose for possible fuel leaks, and
repair as necessary.
□Inspect the engine cooling fins for accumulations of dirt or
debris, and clean as necessary.
□Inspect the entire machine for damage, loose or missing
components or fastenings, and repair as necessary.
EVERY 10 HOURS (MORE FREQUENTLY IN DUSTY
CONDITIONS)
1. Loosen the air cleaner cover retaining screw, and remove the
cover and filer element.
WARNING!
Before performing any maintenance
on this
machine, stop the engine and
disconnect the
spark plug wire!

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2. Inspect the element. If the element is distorted or damaged,
replace it with a new one.
3. Wash the element in clean fuel, and squeeze or blow dry.
Wash the air cleaner cover in clean fuel, and wipe or blow
dry.
4. Install the element and cover, and the tighten the cover
retaining screw.
EVERY 10/15 HOURS
1. Use the spark plug wrench to remove the spark plug ( turn
counter-clockwise to remove)
2. Clean and adjust the spark plug gap to 0.6-0.7mm. Replace
any damaged or visibly worn plug with a L7RTC or
equivalent.
3. Install the spark plug finger-tight in the cylinder head, and
then tighten it firmly with the spark plug wrench. If a torque
wrench is available, torque the spark plug to 148-165 inch
pounds.
EVERY 50 HOURS
More frequently if you note reduced performance
INSPECTION Inspect the entire machine and tubes for damage,
including loose or missing components, and repair as necessary.
SPARK PLUG Replace the spark plug with a L7RTC, gapped to
(0.6-0.7)mm.
FUEL FILTER Use a wire hook to extract the fuel filter from
inside the fuel filter, and then remove and wash the filer element
in clean fuel.
Before reinstalling the filter, inspect the condition of the fuel
line. If damage or deterioration is noted, the vacuum should be
removed from service until it can be inspected by a trained
service technician.

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CAUTION!
Never allow dirt or debris to enter the cylinder bore!
Before removing the speak plug. Thoroughly clean the
the spark plug and cylinder head area!
Allow the engine to cool before servicing the spark plug!
Cylinder tightening or loosening the spark plug while
the engine is hot!
Incorrect spark plug installation can result in serious engine
damage!
STORAGE(30 days or longer)
□CLEANING Thoroughly clean the machine exterior.
□INSPECTION Inspect the entire machine and tubes for
damage, including loose or missing components, and repair
as necessary.
□FUEL Drain the fuel tank, and the clear the carburetor and
lines by running the machine until it stops from lack of fuel.
□LUBRICATION Remove the spark plug, and then pour
approximately 1/4-oz of oil into the cylinder through the
spark plug hole. Before reinstalling the spark plug, pull the
recoil starter 2 to 3 times to distribute the oil over the
cylinder walls.
□AIR CLEANER Remove, clean, and reinstall the filter
element as described under .

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