Maruyama BL410 Owner's manual

Maruyama BL410 Owner's manual
 A MARLYAMA
BACKPACK POWER BLOWER
MODEL BL410
— INSTRUCTION MANUAL
о
© С МАВШИУАМА U.S. INC. >
IMPORTANT SAFETY
INSTRUCTIONS
Safe Operation Practices for Power Blower
TRAINING
1.
Read the operating and service instruction manual
carefully. Be thoroughtiy familiar with the controls and
proper use of the equipment,
. Never allow children to operate blower,
. Keep area of operation clear of all persons, particularly
small children and pets.
. Regard your units as a piece of power equipment and
leach this regard to all who operate the equipment.
PREPARATION
Throughly inspect the area where blower is to be used
and remove all stones, sticks, wire, bones and other
foreign objects which might be picked up and thrown.
Do not operate blower when barefoot or wearing open
sandals. Always wear substantial foot wear, ear guards
safety glasses and pants or slacks that cover your legs
when operating blowers,
Cheek the fuel before starting the engine. Do Not fill the
fuel tank indoors when the engine is running, while
smoking, or while the engine is still hot,
Replace fuel cap securely and wipe up spilled fuel.
Dispose of gas saturated rags property. In a well venti-
lated area to avoid possibility of spontaneous combus-
tion. Never use fuel as a cleaner.
Use only in daylight or in good artificial light.
Always be sure of your footing: keep a firm holder on
the handle and walk, never run.
Do not smoke near open gasoline container. Do not
refuel while strapped on operators back. Refuel out-
doors only.
® |f gasoline is spilled, do not attempt to start the engine,
but move the blower sway from the spill area to avoid
creating any source of ignition until gasoline vapors have
dissapated.
OPERATION
® Start the engine carefully.
Never direct discharge of any material toward by-
standers, nor allow anyone near machine while it is in
operation.
Stay alert-Watch what you are doing — use common
sense. Do not operate Blower when fatigued or under
the influence of alcoho! or medication.
Do not operate the engine in a confined space where
dangerous carbon monoxide fumes can collect,
Never operate the Blower with defective guatds or
shields, nor without safety protective devices in place,
If blower should start to vibrate abnormally, stop the
engine and check for the cause. Vibration is generally
a warning of trouble.
Stop the engine whenever you leave the blower, and
when making repairs or inspections. |
When repairing or inspecting, make certain all moving
parts have stopped. Disconnect spark plug wire and keep
wire away from plug to prevent accidental starting.
Do not run engine indoors.
Watch out for traffic when working near roadways.
Stay alert for uneven sidewalks, holes in terrain or other
hidden hazards when operating.
Be careful to avoid contacting hot engine parts against
trees, brush or other flamable items,
Do not put-hands near rotating parts while engine is run-
ning.
Stop or idle engine when crossing gravel drives, walks, or
roads, and under any conditions where thrown objects
might be a hazard.
MAINTENANCE AND STORAGE
Keep all nuts, bolts and screws tight to be sure equip-
ment is in safe working condition.
Never store blower with fuel in the tank in a building
where fumes may reach an open flame or spark, Be sure
engine has cooled before storing in any enclosure,
To reduce fire hazard, keep engine free of grass, leaves
or excessive grease,
After operating engine, never touch exhaust muffler
until it has cooled completely.
Keep blower in good operating condition and keep safe-
ty devices in place.
SPECIFICATIONS
MODEL NAME BL410
Dimensions (L) x (W} x (H) {in./mm) 19.9 x 14.6 x 20.3/505 x 370 x 515
Dry Weight (Ibs./kg) 21.4 / 9.7
Engine Type — 2 stroke / air cooled Mitsubishi
Displacement (c.c.) 41,0
Electronic ignition Standard
Carburetor Float
Fuel Tank Capacity {oz./1) 76.7 / 2.2
Air Volume — at fan outlet cfm (m? /min) 530/15
Attachments — standard Five section fishtail
blower pipe
ASSEMBLING
1. Inspect the main body and accessories.
2. Connect flexible pipe to blower, and swivel pipe to flexible pipe.
Fasten them with wire clamps securely.
3. Connect straight pipes together and connect to swivel pipe.
Carring handle Fuel tank
Engine
Air cleaner .
Blower housing
Recoil starter Wire clamp
Fan-shaped blow head
Throttle lever
Flexible pipe Swivel pipe
STANDARD ACCESSORIES
(0
^
Flexible pipe Swivel pipe Straight pipe (2) Bent pipe
1 _
Straight pipe
Bent pipe
Wire clamp (S)
Fan-shaped blow head
PREPARATION
1. Check the followings before operation.
a) Every screw is tightened securely. If loosened, tighten
it securely,
b) All the pipes are connected firmly.
2. Fuel
Be sure to use gasoline and 2-cycle engine oil mixture,
25:1 | ‘
Gasoline —n 2-cycle engine oil
NOTE:
Never overfill or spill the
fuel onto the engine.
3. Inspect and clean the air cleaner.
The inside of air cleaner must always be clean. Dirty air
cleaner will decrease the output capacity. If fouled with
dirt, take out the element; clean it in gasoline; clean the
inside of cleaner and replace the cleaned element to its
position. The cleaned element must be dipped in oil and
excess oil must be squeezed out before re-installing. Element holder
Element
4, Use of throttle lever.
The throttle lever is located on the left side of the
blower {when mounted on back) and is used to
regulate engine speed. Pull up on lever to increase speed
and push lever all the way down to stop engine. The
throttle levr should be in the mid position when start-
Ing engine.
Storage position:
Knob pushed in
Operating position:
Knob pulled out
5, Use of shoulder straps Metal hook
Swing blower over right shoulder first. Work left arm A- Shaped metal part
through left strap then pull up on metal triangle of left
shoulder strap and attach to metal hook. Adjust both
straps to best fit by sliding metal adjustors up on down.
STARTING
Choke lever
Fuel cock
Drain plug
(a. Open the fuel cock. 2. Close the choke lever fully.
Fuel cock
3. Throttle lever
At 3 to 4 stage
It takes fuel about 1—2 minutes If the engine is warm, the choke Position the throttle lever onto
to flow into the carburetor to lever should be opened fully or the “3 to 4" stage.
full level. midway.
4, Starting right hand.
|
Cautions: Read the instruction label carefully in
handling the recoil starter, .
a) Do not let go of the knob while the rope is pulled
out.
b} Do not pull the rope all the way to the end.
\ ©) Pull the rope straight.
5. Warming up the engine,
For 1 to 3 minutes
after opening the
choke.
Once the engine gets started, open the choke lever
gradually, and lower the throttle lever “1 to 2” stage
and run the engine for a few minutes at a low speed
for warming up the engine,
/
*
When the engine is already warmed or when the engine requires several trials of pulling the rope of recoil starter,
open the choke lever fully. Excessive use of the choke lever will cause flooding, making starting difficult.
#
When difficult to start.
1. When the engine fails to start even after the repeated trials, check the followings:
a) À dry plug indicates the fuel stops on the way. Inspect the fuel passage. One of the main causes is ciogging or leakage.
b) A wet plug indicates the flooding of fuel. Close the fuel cock. Remove the spark plug, and pull the recoil starter three
to five times.
Fuel cock Drain the fuel out of the crankcase.
Raise to close
Jerk a few times Screw off the plug to drain the fuel.
Cautions: 1) When flooding is extreme, remove the drain plug to let the fuel out of the crankcase.
2) Keep inflammables away, |
2. The stained spark plug is to be replaced with a new one or the carbon on it must be removed. The wet spark plug must
be dried before re-use.
——— + 0.6mm
proper gap
Adjust the plug gap
TT) as shown,
OPERATION
1. When the engine is warmed up enough, set the throttle lever at a required speed and let it clutch in to load the engine,
2. Shoulder the machine on the back,
3. Raise the throttle lever to the “Max.” stage to run the engine at a high speed.
4. Check the fuel level in the tank now and then, and replenish the tank with fresh fuel before exhausting. Too low fuel level
in the tank will be a cause of next start failure.
Our recommendation stage is at 4
Cautions: Do not keep the engine running at a full speed
for a long time without putting the bent pipe
on top of the pipes. or the engine will get over-
heated.
STOPPING
“ Cooling off the engine
{for 1 to 3 minutes)
| 2. Stopping
At 1 to 2 stage
To stop the engine after opera-
tion, lower the shutter lever
onto the bottom stage, Keep
the engine run at a low speed for
Nu few minutes to cool it.
Down to the bottom stage
After that, lower the throttle
lever to stop the engine.
3. Fuel cock
Raise to close
Be sure to close the fuel cock
after the engine stops,
Cautions: Store the machine al-
ways in the shade, not
in direct sunlight. 7
CLEANING
Be sure to remove the dusts, oil etc. off the machine, pipes, nozzles, etc. Dry them well for the next use.
PERIODICAL MAINTENANCE
1. Daily inspection
a Check all the bolts and nuts for looseness.
o Clean the spark plug and adjust the firing gap to 0.7mm.
o Clean the inside of the fuel tank by flushing gasoline. __
4. Inspection at every 100 hours’ operation |
o Check for fuel or gas leak.
o Remove carbon layer from the cylinder combustion
2. Inspection at every 20 hours" operation
o Clean the air cleaner element.
3. Inspection at every DO hours’ operation.
o Retighten the cylinder heaf bolts and nuts,
STORAGE
When shutting down the engine for long period of time
during out of the season, the following maintenance proce-
dures are necessary for the smooth restarting for the next
use.
1. The cylinder, combustion chamber, exhaust port, and
inlet/outlet of muffler are subject to the accumulation
of the carbon. If much carbon accumulated, the output
will decrease, so these must be cleared of periodicaily Бу
dismounting the muffler, —
NOTE: When dismounting the muffler and cleaning the
combustion chamber, be careful not to spoil
the piston and cylinder.
2. Be sure to drain out the fuel entirely from the fuel tank
and the carburetor. To do so,
a) Close the fuel cock. Open the drain of the low part of
the carburetor to let the residual fuel go out of the
carburetor,
b) Take off the fuel line at the side of the carburetor to
let the fuel go out of the fuel tank.
c) Keep the throttle lever at “Stop” stage,
3. Drain all the fuel from the tank and the float chamber of
chamber, the exhaust port and the outlet/inlet of the
muffler,
o Adjust the clearance of the contact breaker point,
carburetor and jerk the recoil starter two or three times
with the choke lever closed entirely.
4. Remove the spark plug and poura spoonful of engine oil
at the plug fitting hole into the engine and stroke the
recoil starter (or the start rope} 2 or 3 times and keep
the cylinder head at compressed position. Be sure to re-
place the spark plug to its position.
5, Clean the outside of the engine with an oil soaked cloth
and keep it in a moisture-free place until next use.
6. Cleanse the fuel filter and suction pipe in gasoline.
Cock
Raise to close
Drain up fuel out of the
carburetor.
Drain up fuel out of the
tank and close the cock.
TROUBLE-SHOOTING
. Over-suction of the fuel
. Too much carbon on the spark plug
. Poor insulation of the spark plug
. Improper gap of the spark plug
The current reaches
The fuel reach- the terminal.
es the carbu-
retor, but the
spark plug
never ignites.
о с с в
Stained contact point
. Poor or disconnection of TCI unit
. Poor connection between ignition coil and TC! unit
. Cut or short circuit in the ignition coil
No current reaches
the terminal.
о еб ога
*
Th |
The fuel reach- > compression a. Improper fuel
es the carbu- Is good. |
retor, and the a. Worn or loosened cylinder packing
The compression
spark plug b. Loosened spark plug
но is bad. ,
ignites well. | c. Worn piston rings
ENGINE RUNS ABNORMALLY
. No fuel in the tank
. Fuel cock closed |
. Clogging of the ventilating hole of the fuel tank
. Clogging of the passage in the carburetor
. Bent or torn vinyl pipe
The fuel fails to reach the carburetor.
© 0 0 oOo yo
. Improper fuel
. Clogging of the aircleaner element
. Air in the Joint of the fuel pipe
. Abnormal choke lever or fuel height in the float chamber
| . Too much carbon inside the cylinder, exhaust pipe and
The engine run, muffier
but no power.
The compression
is good, and no
misfire,
TT QO To
. Stained ignition plug
. Intermittent short circuit of cord
. Bad fuel
. Worn piston ring
. Scars inside the cylinder
Cracks on the piston head
The compression
is bad, and
misfire, too.
о ос
‚ Shortage of the fuel g. Bad spark plug
. Thin mixing ratio of the fuel (Improper timing}
. Vil is not well mixed h. Build up of dirt on the
. Too much carbon build up cooling fins of cylinder
. Overloaded running
Unloaded running
ENGINE FAILS TO START
The engind is overheated.
HH O LO god Mm.
D
. Carburetor out of adjustment
Poor acceleration | | b. Poor quality of gasoline and oil
c. Too much carbon built up
a MARUYAMA_U.5.. INC.
Maruyama U.S., Ine.
PO Box 309 | Printed in Japan
Auburn, WA 98071-0309 | 86 9 2,000 ©
A1I5I715726N
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