ENGLISH - Blower tube 440 / Vacuum shredder 441

ENGLISH - Blower tube 440 / Vacuum shredder 441
440 / 441
Instruction manual
Original instructions
Blower tube 440 /
Vacuum shredder 441
Read this instruction manual carefully before
first operation and strictly observe the safety
9 440 106 english
Blower tube 440 / Vacuum shredder 441
Symbols / type plate
Instruction manual
Original instructions
Caution! Prior to operating the unit, please
read the owner’s manual carefully, and most
importantly, observe all safety rules.
Dear Customer,
Congratulations for choosing this SOLO quality
A single-cylinder, two-stroke motor withvnickelcoated cylinder in proven SOLO technology
insures high performance and low fuel
consumption and high machine serviceability.
This power tool has many special features - a
powerful air stream, a unique anti-vibration
system, which effectively removes motor vibrations
from the handle, excellent operating convenience,
easy conversion from blower to vacuum device
(available as accessory for model 440) and
excellent starting characteristics.
SOLO constantly strives to continuously
develop its products. Consequently Solo must
reserve the right to make changes in form,
technology and fittings.
No claims can be derived from the illustrations
or information contained in these operating
To maintain the function and the performance
of this power tool over a long period of time you
should precisely comply with the operating and
maintenance instructions.
If you should have further questions after
studying these operating instructions, your dealer
would be pleased to help you.
EC declaration of conformity Î The EC
declaration of conformity on a separate piece of
paper forms part of these operating instructions.
The following symbols are used in this manual and
on the product:
Thoroughly read these operating
instructions before undertaking any
maintenance, installation and cleaning
Wear ear defenders and a face shield
before starting the engine
Wear protective gloves when handling and
working with the equipment
Wear solid shoes, preferably safety shoes
with a good tread
Always handle this power tool with
particular care
Please note: objects may be thrown out
and high
Never smoke near the power tool or
where the equipment is refuelled!
Keep open flames away from the power
tool and the fuel can
- This equipment produces exhaust fumes
- fuel vapours are poisonous;
never start or refuel in enclosed spaces
Choke open
Warm start and operating setting
Choke closed
Cold start setting
Type plate:
Packaging and disposal
Please keep the original packaging in order to
protect the equipment against transport damage in
case you ever need to ship it or transport it. If the
packaging materials are no longer required then
they must be disposed of properly in accordance
with applicable local regulations. Cardboard
packaging materials are raw materials which can
be recycled or reused.
At the end of the equipment’s service life, please
make sure that you dispose of it properly, in
accordance with the official directives and
regulations that apply in your area.
a: Type designation
b: Serial number
c: Build year (07 Î 2007)
1. Safety regulations................................................................................................................................. 4
1.1 General safety instructions
1.2 Working clothes
1.3 When performing any assembly, maintenance, repair and cleaning work
1.4 Fuelling
1.5 When transporting the equipment
1.6 Preparing the equipment for starting
1.7 Starting
1.8 Working with the machine
2. Specification ......................................................................................................................................... 7
3. Accessories........................................................................................................................................... 7
4. Standard delivery.................................................................................................................................. 8
5. Control and function elements ............................................................................................................ 8
6. Preparing the equipment for use....................................................................................................... 10
6.1 Assembly - blower operation
6.2 Assembly - vacuum operation – only model 441 (with model 440 as accessory)
7. Fuelling ................................................................................................................................................ 12
7.1 Fuel information
7.2 Mixing ratio
7.3 Fuelling
8. Starting / Stopping the engine........................................................................................................... 12
8.1 Sart settings
8.2 Starting
8.3 When the motor starts:
8.4 Engine will not start:
8.5 Turning off the engine:
9. Using.................................................................................................................................................... 13
9.1 Blower operation - Fig. 1
9.2 Vacuum operation – only model 441 (with model 440 as accessory) - Fig. 2
10. Operating and maintenance instructions ....................................................................................... 14
10.1 General operating and maintenance instructions
10.2 Carburettor adjustment
10.3 Information about the spark plug
10.4 Air Filter Maintenance
10.5 Replacing the fuel filter
10.6 Scheduled maintenance
10.7 Shutdown and storage
11. Parts subject to wear and tear......................................................................................................... 17
12. Guarantee .......................................................................................................................................... 17
Î For USA only: Emissions Control Warranty Statement / Manufacturers Warranty Coverage ....17
Safety regulations
1. Safety regulations
1.1 General safety instructions
The power tool may only be implemented in the designated application area and only for the specified
application purpose listed under chapter 9 “Using”.
Read the operating instructions carefully before taking this equipment into service and keep
them in a safe place. Use this power tool with particular caution.
Non-observance of safety instructions can lead to a risk to life. Also observe any regulations from your
professional body. These operating instructions must always be available at the place of work. All
individuals instructed to work with the equipment (including maintenance, care and repair), should read
these instructions.
• You should request and receive instructions from the vendor on the safe operation if you are using this
type of product for the first time.
• Children and young people under 18 years may not work with this power tool, with the exception of
young people over 16 years of age who are being trained under supervision.
• Keep bystanders and animals away from the working area. The operator is responsible for any
accidents or damage caused to parties or property.
• This machine may only be passed on or lent to third parties if they are familiar with the safe use of this
product and with these instructions. Always supply the manual with the machine.
• Ensure you are rested and in good health when using this machine.
• Persons under the influence of alcohol or drugs, including prescription drugs, are not allowed to use
this machine, as their ability to quickly react to potential danger may be impaired.
• Never alter, change or modify any safety equipment or functional assemblies on this machine.
• Only use this machine if it is in good, safe condition. Always check the machine prior to use. Risk of
• Only those accessories and attachments may be used that have been supplied by the manufacturer
and that are expressly approved for attachment.
• Always stop the engine and remove the spark plug cap when opening the blower cover.
• The reliability and safe operation of your machine depend on the quality of parts used with the
machine. Only use original spare parts. Original spare parts are identical with genuine production parts
and guarantee best quality in material, dimensions, function and safety. Original parts and accessories
are available from your specialist dealer. Your dealer has been supplied with appropriate
documentation to determine the correct parts. Your dealer is frequently supplied with updates about
improvements to the equipment. Please note that the use of non-original parts will void your warranty.
• Always store the machine in a safe place and in such a way that it will not pose any danger. Stop the
engine when the machine is not used.
Persons who disregard safety instructions, operating or maintenance instructions may be liable for any
damage or consequential losses.
1.2 Working clothes
To prevent injuries, always wear suitable clothing and safety equipment when working with this power tool.
This clothing should be practically oriented to the application (for example a tight fitting work suit), but
should not be confining.
We recommend:
SOLO forest and countryside work jacket EN 340 Part no: 99 303 000 + size (2[s]
- 6[xxl])
SOLO Outdoor Knee-breeches Part no: 99 020 95 + size
SOLO Outdoor dungarees Part no: 99 020 94 + size
Never wear scarves, ties, jewellery or other items of clothing, which might get caught in the equipment, in
brush or on branches. Safely tie back long hair (use a cap, helmet or similar).
Wear sturdy shoes with a good tread - ideally safety shoes.
We recommend: SOLO leather forest boots Part no: 99 305 10 + size (36 - 48)
Wear protective gloves with non-slip palms.
We recommend: SOLO Fit Part no: 99 390 12 + size.
Use ear defenders and/or a visor for protection against flying objects or objects caught up in the
turbulence (protective goggles for example).
We recommend: SOLO face/ear protection pack Part no: 99 390 1002 (one size)
Safety regulations
1.3 When performing any assembly, maintenance, repair and cleaning work
Never assemble, maintain, repair or store the power tool near open flames.
When performing any assembly, maintenance, repair or cleaning work – even initial equipment
assembly – observe the following:
- Set the ON/OFF switch to "0" (exceptions are the adjustment of the carburettor and the idle
- Pull the spark plug cap before opening the fan cover, for example when fitting the vacuum pipe or
for cleaning.
- Prevent fuel spillages. Close the fuel tank by hand and test the entire tank for leaks. It is advisable
to drain the tank before carrying out any work.
Regularly service this machine. Only carry out those maintenance jobs and repairs, which are
described in this manual. A specialised service centre will carry our all other jobs.
For any repairs only use original parts from the manufacturer.
Do not modify, alter or change the machine as this may impact on the safe operation of the machine
and may lead to accidents and injuries!
1.4 Fuelling
Petrol is very light and highly flammable. Keep away from open flames and never spill fuel. Do
not smoke at the operating site or at and near the refuelling site!
Stop the engine prior to refuelling.
Let the engine cool down before refuelling - fire risk!
Open the tank lid slowly to allow any excess pressure in the tank to be reduced without the risk of
petrol spraying out.
Fuel may contain substances similar to solvents. Prevent products made from mineral oil coming into
contact with skin and eyes. Wear protective gloves during filling with fuel. Frequently change and clean
protective clothing.
Avoid breathing in fuel vapour.
The refuelling site should be well ventilated.
Avoid any soil spillage of fuel or oil (protection of the environment). Use a suitable mat.
Immediately clean any spilled fuel on the machine. Change contaminated clothing without delay.
Firmly tighten all tank lids. This will reduce the risk of spillage from lids, which have become loose from
engine vibrations.
Check for petrol leaks. Do not start the machine or work with the machine if there is a petrol leak. Life
threatening risk from burns!
Store fuel and oil in approved and correctly labelled containers.
1.5 When transporting the equipment
Always turn off the engine when transporting the machine.
To prevent fuel running out and associated damages, secure the equipment against tipping over
during vehicle transportation. Check the tank for leaks. It is advisable to drain the tank before
Drain the tank before despatching the equipment.
1.6 Preparing the equipment for starting
Check the complete machine for operational safety.
• The stop switch should function properly.
• The throttle must have freedom of movement and return to the idle position on its own accord.
• The impeller and the blower casing must be in a problem-free condition. Damage to the blower casing
can lead to an injury hazard through escaping foreign objects. In this case do not use the device, have
it checked by a dealer
• Ensure the spark plug cap and the ignition cable are connected firmly. A loose connection may cause
a spark, which can ignite any existing fuel:air mixture - fire hazard!
Should the check reveal any irregularities or recognisable damage (also to the frame), incorrect
adjustments or reduced efficiency of the machine, do not commence work. Take the power tool to a
specialised workshop and have it checked.
Safety regulations
1.7 Starting
Start the machine no less than 3 metres from the refuelling location. Never start the machine in an
enclosed space.
Ensure that you are standing firmly on the ground when starting. Always start on even ground, with a
firm grip on the power tool.
Only one person at the time may operate this power tool - no other people should be within a radius of
5 m - even when starting.
Continue with the starting procedure as described in section 8. "Starting/Stopping the engine".
1.8 Working with the machine
Only use this power tool when it is complete and in a safe condition.
As soon as the engine is running, the power tool generates toxic gases, which may be invisible and
odourless. Never work with the power tool in enclosed spaces. In confined conditions such pits or
excavations, ensure adequate air changes during work.
Do not smoke at the work site and in the immediate vicinity of the power tool. There is an increased
fire hazard!
• Work conscientiously, thoughtfully and calmly, and do not endanger third parties.
- Pay attention to good visibility and lighting conditions.
- Always remain within earshot of other people who can provide help in case of emergency.
- Pay attention to possible hazards and take appropriate precautions. Be aware that wearing ear
defenders reduces the ability to perceive noise. This includes sounds alerting to danger such as
signals, shouts, etc. that can go unnoticed.
- Always grasp the power tool firmly and always pay attention to safe and stable standing position.
- Exercise caution when the ground is wet or covered in ice and snow, on overhangs, or uneven
terrain. There is an increased risk of slipping!
- Pay attention to the risk of stumbling and obstacles, such as tree roots and stumps, edges, etc. Pay
particular attention to safety when working on slopes.
- Never blow in the direction of other people, as smaller objects can be forced upward at high speeds.
- Use the power tool at lowest possible noise and exhaust levels. Only open the throttle when working,
do not let the engine run unnecessarily. Please note that noise also impacts on the environment.
Observe the quiet times that can vary from place to place.
• Switch the engine off if the device behaves in any way unusually.
• Never touch the exhaust or the silencer; as long as they are still hot, there is a risk of burns!
• Never work with a defective or missing silencer. There is a hazard of hearing damage and burning!
When using as vacuum shredder (model 441):
• For vacuuming, the power tool may only be used with attached collection bag. Hang the carrying strap
over the shoulder. Always hold power tool with two hands by the two handles.
• Never vacuum up hot materials or burning materials, (no ashes, burning cigarettes etc.), there is a fire
injury hazard. Also flammable liquids (for example gasoline), or materials, that are wet with such
materials may not be vacuumed up. There is a hazard of fatal injury caused by explosion or fire!
• Ensure that no branches, fabric, rags, mineral material (gravel, stones, etc.), metallic materials or other
substances are collected, for which the equipment is not designed. Such material could damage the
• Never use the Hand-held Vac 441 on substrates covered by gravel or other hard materials, which
might damage the equipment.
• If the vacuum tube is not mounted, then the blower cover must always be closed until it catches.
Rotating parts can lead to serious injuries. Also damage could occur to the motor.
Over exposing persons with circulatory problems to vibrations can lead to damage to their nervous system
or blood vessels. The following systems may occur from vibrations to fingers, hands or the wrists:
Numbness, itching, pain, twinges, changes to the colour of the skin or the skin itself. Seek medical advice
if you experience any of these symptoms.
Specification; Accessories
2. Specification
Blower tube / Vacuum shredder
Engine type
SOLO single cylinder two-stroke engine
Engine capacity
Fuel tank capacity
All-position diaphragm carburettor with primer
and integrated fuel pump
Fuel mix ratio:
with " SOLO 2T engine oil "
with other two-stroke oils
1:50 (2%)
1:25 (4%)
Air filter
Foam filter
Electronically controlled magneto ignition,
maintenance free
Sound pressure level LPeg(EN 27917)
Sound power level LWeg to EN ISO 3744
actual / guaranteed 95%
Weighted effective acceleration (ISO 7916)
Handle / grip stand
Weight ready to operate (tank empty)
104 / 105
Air volume
length / width / height
without tubes
Fully fitted with pipes (and catcher)
Medium idling speed
Max. permissible speed
1,9 / --
2,5 / 3,0
630 Vacuum
760 Blower operation
315 / 260 / 380
970 / 260 / 380
315 / 260 / 380
1100 / 1130 / 600
3. Accessories
Order no. Type 440
Order no. Type 441
Refitting set vacuum fixture for blower 440
49 00 546
Carrying strap for blower 440
49 00 159
Blower tube / Vacuum shredder
Spark protective grate for noise suppressor
20 48 378
SOLO 2T engine oil
100 ml
00 83 103
SOLO 2T engine oil
00 83 104
SOLO 2T engine oil In a metering bottle
00 83 105
SOLO leather forest boots
SOLO face/ear protection pack
SOLO forest and countryside work jacket EN 340
99 305 10 + size (36 - 48)
99 390 1002
99 303 000 + size (2[s] - 6[xxl])
SOLO Outdoor Knee-breeches
99 020 95 + size
SOLO Outdoor dungarees
99 020 94 + size
Gloves SOLO Fit
99 390 12 + size
Standard delivery; Control and function elements
4. Standard delivery
• Standard equipment partially pre-assembled; the following parts are included and must be fitted
• Blower fittings:
ƒ Blower pipe to be fitted to the standard machine
ƒ Round air nozzle to be fitted to the blower pipe
ƒ Flat nozzle attachment to be fitted to the round air nozzle (if required) with edge protector
• Vacuum attachment (only model 441; with model 440 as accessory; part no: 49 00 546)
ƒ Vacuum pipe
ƒ Exhaust air elbow to be fitted to the catcher with a fixing clip
ƒ Catcher with strap system
• Combi tool (spark plug spanner and screwdriver)
• Instruction manual, the EC declaration of conformity on a separate piece of paper
5. Control and function elements
Fig. 1
Blower operation:
Control and function elements
Fig. 2 Vacuum operation
– only model 441 (with model 440 as accessory)
ON/OFF switch (I / 0)
Hand throttle
Gas pre-select lever
Carrying strap eyelet
Noise suppressor
Sparkplug cover
Starter shutter
Air filter
Starter grip
Fuel tank filler cap
Stand (grip in vacuum operation)
Blower cover
Blower tube
Round air nozzle
Flat nozzle attachment
Vacuum pipe
Exhaust air elbow
Preparing the equipment for use
6. Preparing the equipment for use
Round air nozzle assembly (17)
Fig. 4
Observe all safety instructions during assembly
and dismantling work!
6.1 Assembly - blower operation
The total pipe for the blower operation consists of
three parts:
Blower pipe (16) to be fitted to the standard
Round air nozzle (17) to be fitted to the blower
Flat nozzle attachment (18) (optional use) to be
fitted to the round air nozzle.
These parts are fitted in the same manner. When
pushed together, the respective arrows must be
perfectly aligned, then secure the part by turning it
45°. For dismantling, initially turn the part again,
until the arrows are aligned, then pull the
components apart.
Blower pipe assembly (16)
Fig. 3
a) The round air nozzle (17) has two longitudinal
Push the nozzle either into pos. L (long) or in
pos. K (short) up to cam (25) on blower pipe (16)
(when the nozzle is pushed onto the blower pipe,
on the round air nozzle and on the blower pipe
must be aligned accurately).
b) Turn the round air nozzle 45º, so that arrow on
the round air nozzle is turned down, until it
audibly clicks into place.
To modify the overall length of the pipe, initially
turn the round air nozzle back, so that the arrows
are again aligned accurately. Then move the round
air nozzle into alternative longitudinal position, and
secure by turning it.
To disassemble the round air nozzle, initially turn
it back, so that the arrows are aligned again
accurately. Then pull the round air nozzle from the
blower pipe.
Flat nozzle attachment (18)
a) Push blower pipe (16) with groove (22) over
cam (23) of the standard machine.
The arrows on the blower pipe and the standard
machine must be aligned accurately, when the
parts are pushed together (the wide groove (22)
over the large cam (23), and the narrow groove
over the smaller cam).
b) Rotate the blower pipe through 45º so that the
arrow on the blower pipe is rotated downwards
until the blower pipe is clearly felt to engage and
the lock (6) engages behind the groove on the
blower pipe.
Blower pipe dismantling
• Gently lift up the lock (6) and rotate the blower
pipe back at the same time until the arrows on
the blower pipe and the standard unit are
exactly lined up again.
• Pull the blower pipe from the standard
Fig. 5
a) Push the flat nozzle attachment onto the round
air nozzle in accordance with the arrows on the
flat nozzle attachment and on the round air
b) Turn the flat nozzle attachment 45°, so that edge
protector clip (18a) is turned down into its
operating position. Edge protector clip (18a)
protects the plastic pipe, when it contacts the
ground during operation.
To dismantle the flat nozzle attachment from the
round air nozzle, turn it back and pull it off, after
aligning the arrows.
Preparing the equipment for use
6.2 Assembly - vacuum operation – only
model 441 (with model 440 as
Catcher assembly (21)
Fig. 7
Fit the following parts for the vacuum operation:
Exhaust air elbow (20) to be fitted to the standard
Catcher (21) to be fitted to the exhaust air elbow.
Vacuum pipe (19) to be fitted to the standard
[Note: When preparing model 440 with vacuum
operation accessory kit 49 00 546 for the first time,
also fit the anti-static wire in accordance with the
details supplied with the accessory kit. For model
441, the anti-static wire is already fitted as standard.]
Exhaust air elbow assembly (20)
Fig. 6
• Open Velcro strap (27) on catcher.
• Push the catcher so far over the elbow, that the
entire width of the Velcro strip is located behind
the bead (28) on the reducing part of the elbow.
• Tighten and close the Velcro strip.
• Secure the shoulder strap to the catcher eyes.
To dismantle the catcher, open the Velcro strip and
remove the catcher from the exhaust air elbow.
Vacuum pipe assembly (19)
Fig. 8
With a screwdriver,
push into the side
opening of the fan
cover to release it.
Fig. 9
Tip: To make the assembly easier, the standard
machine can be positioned on a level surface, air
filter side down. For this, ensure that the tank cap is
tightly secured to prevent fuel spillage.
• Undo clip (26) on exhaust air elbow (20).
a) Push exhaust air elbow (20) with groove (27) over
cam (23) of the standard machine.
The arrows on the exhaust air elbow and the
standard machine must be aligned accurately,
when the parts are pushed together (the wide
groove (27) over the large cam (23), and the
narrow groove over the smaller cam).
b) Rotate the exhaust air elbow through 45º over the
stand until the lock (6) engages behind the groove
on the exhaust air elbow; do not tighten
• Secure clip (26).
Dismantling the exhaust air elbow
• Undo clip (26).
• Gently lift up the lock (6) and rotate the exhaust
air elbow back at the same time until the arrows
are exactly lined up again.
• Pull the exhaust air elbow from the standard
Open the fan cover wide. Push vacuum pipe cams
(30) into grooves (31) on the inner ring of the fan
casing. Ensure that the large cam (30g) is located in
the wide groove (31g) and the small cam (30k) in the
narrow groove (31k).
Rotate the vacuum pipe clockwise until it is clearly felt
to engage.
Note: To enable the power tool which has been
attached for vacuum operation to be stored on stand
(14) again Î
first loosen the clip (26) and lift up the lock (6), then
rotate the exhaust air elbow back so that the arrows
on the exhaust air elbow and the standard unit are
exactly lined up again.
Fuelling; Starting / Stopping the engine
7. Fuelling
8. Starting / Stopping the engine
7.1 Fuel information
8.1 Sart settings
A high performance two-stroke engine operated with
a petrol:oil mixture (petrol + oil = fuel mixture) or with
a special fuel mixture for two-stroke engines
available from specialists powers this machine. The
fuel mixture can be made up with standard lead-free
petrol or with lead-free premium grade petrol. The
minimum octane rating for petrol is 92 ROZ.
Unsuitable petrol or deviations in the mixing ratio
may lead to serious engine damage!
Avoid direct skin contact with petrol and avoid
inhaling petrol fumes - health hazard!
Fig. 10
Set the
ON/OFF switch (1)
to "I“.
Fig. 11
7.2 Mixing ratio
Always use a fuel:oil ratio of 25:1 (4%) for the first
five tank fillings.
After that we recommend a ratio of 50:1 (2%) with
the use of special two-stroke oil "SOLO 2T engine
oil" which we can supply.
With the use of other brand two-stroke oils we
recommend a ratio of 25:1 (4%).
Never store fuel mixture longer than 3 - 4 weeks.
Fuel mixture table
Petrol in
Oil in litres
SOLO 2T engine oil
2% (50 : 1)
Other twostroke oils
4% (25 : 1)
Adjust choke (10) as follows:
• With a cold engine, position choke lever (10) up
towards "Close" .
• With a warm engine, position choke lever (10)
down towards "Open" .
When first starting or if the fuel tank has been
completely drained and has been refilled, press
primer (9) several times (at least 5x) until the fuel is
visible in the plastic bulb.
7.3 Fuelling
8.2 Starting
While fuelling always follow all safety instructions
and take all safety precautions.
Handle fuel only with the engine turned off. Carefully
clean the area around the filler inlet. Place the
machine with the fuel inlet pointing upwards.
Unscrew the tank lid and fill the fuel mixture up to the
lower edge of the filler neck. Use a funnel with filter
to prevent tank contamination. After filling the tank
replace the tank lid and tighten firmly.
Observe the safety instructions when starting. Insure
a stable stance.
Power tool starting position in blower operation:
Fig. 12a
• Place the power tool on the stand (14) on level
• Use one hand to hold the handle (4) and hold the
power tool firmly on the ground.
• Use your other hand to operate the starter grip.
Starting / Stopping the engine; Using
Power tool starting position in vacuum operation
Model 441 only
Fig. 12b
(model 440 as
• Rest the power
tool on the
vacuum pipe on
the ground.
• Using your right
hand, firmly grip
the power tool by
the stand (14).
• Use your left
hand to operate
the starter grip.
• First pull out the starter grip carefully until a
resistance is felt (this corresponds to the piston
being at top dead centre), then pull through
quickly and firmly in a straight line. Do not be
tentative or hesitant when starting.
• Always pull the rope out in a straight line, do not
let the rope drag across the edge of the rope
• Do not pull rope all the way out - risk of the rope
• Always manually guide the rope back into its start
position with your hand on the starter grip - do not
let it retract on its own.
If the motor is cold:
start until the
With the starter shutter in position
motor is audible and briefly starts (ignites). Then
immediately place the starter shutter in position .
Continue starting until the motor turns over.
If the motor is warm:
start until the
With the starter shutter in position
motor turns over.
In that case we recommend you proceed as follows:
• Remove the spark plug cover.
• Pull the spark plug cap off the spark plug.
• Remove the spark plug and dry fuel mixture from
the electrodes.
• Move the throttle lever up to full throttle. Pull the
starter handle several times (with removed spark
plug) to clear the combustion chamber.
• Move the throttle lever down to idling position, refit
the spark plug, the plug cap and the plug cover.
• Start the engine with the choke lever down ( )
and the stop switch in the "I" position.
8.5 Turning off the engine:
Release gas throttle, and if required bring the pre-gas
selector switch into idle position. The stop switch is
placed in pos. “0”.
Emergency stop Should the engine – due to a faulty
ON / OFF switch – fail to stop, it can also be stopped
by closing the choke (choke lever in position ). After
such an event, do not restart the engine, but have the
equipment checked by an authorised service shop.
9. Using
9.1 Blower operation - Fig. 1
The device is designed as a one-hand device. It can
be carried with the right hand or also the left hand on
the operating handle.
Leaves, grass cuttings, shavings, grains can be
blown away - even on uneven terrain.
Through lower engine RPMs the strength of the
blower jet can be lessened and the effective area can
be reduced.
Watch for small animals!
9.2 Vacuum operation – only model 441 (with
model 440 as accessory) - Fig. 2
8.4 Engine will not start:
The vacuum shredder is conceived as a two-hand
device. It must be carried with the right hand on the
pedestal grip and with the left hand on the operating
handle. The carrying strap of the collection bag is
placed over the left shoulder and the right arm goes
through the carrying strap.
With the vacuum tube leaves, grass clippings, pieces
of cardboard, pieces of bark etc. can be vacuumed
The suction force can be reduced by lower RPM
speed and the effective area can be decreased.
Always watch out for small animals when vacuuming.
If the motor does not start in idle position (ON/OFF
switch (1) on "I“?), press the throttle (2) half-way
down and bring the gas selector lever (3) into a
middle position. Do not start with throttle fully open! If
the motor still does not start, then the combustion
chamber is flooded.
When vacuuming wet leaves or clumps of grass the
blower can become plugged! Before opening the
blower cover - even to remove clumped or jammed
suctioned material - always place the stop switch on
"0" and pull off the sparkplug connector!
8.3 When the motor starts:
Adjust the gas pre-selector switch (3) all the way up
(idle position) if you had it on a middle position. You
can now start working. The ideal RPM speed can be
set either with the gas throttle or the gas pre-selector
Operating and maintenance instructions
10. Operating and maintenance
10.1 General operating and maintenance
The maintenance and the repair of modern machines
as well as their safety-relevant assemblies require
qualified specialised training and a workshop
equipped with special tools and test equipment.
Consequently the manufacturer recommends that all
tasks not described in these operating instructions be
carried out by a specialised workshop. That
specialist has the required training, experience, and
equipment at his disposal, to provide you with the
most cost-effective solution for such work. He will
provide additional help in word and deed.
After a running-in time of app. 5 hours, all accessible
screws and nuts (except the carburettor adjusting
screws) must be checked for tightness and they must
be retightened, if required.
Bear in mind when using this power tool that the
engine and its various components such as
carburetor and ignition system can become very hot,
particularly at full-throttle operation. So that no
consequential damages occur in this regard, the
motor should run for some time in idle after longer
periods of full-throttle operation. When you are
finished with the work, let the motor cool down.
It is best to store the equipment in a dry, safe
location with a full fuel tank. There should be no
open flame or similar nearby. For longer periods
without using the equipment (longer than four
weeks), see chapter "10.7 Shutdown and storage".
Turn the idling end-stop screw "T" to adjust the idling
speed in accordance with the details provided in the
specification. Use an engine rev counter for this job.
If the idling speed is too high, turn the idling endstop screw "T" anti-clockwise.
If the idling speed is too low (engine stops) turn
the idling end-stop screw "T" clockwise until the
engine runs smoothly.
If the idling speed cannot be set correctly with the
idling end-stop screw "T", request an authorised
service centre to tune the carburettor.
The following instructions are for authorised
service shops
Use the D-CUT carburettor key to adjust the idle
mixture screw "L" and the full load mixture screw "H".
Clean the air filter before adjusting the low speed
Let the engine run warm before adjusting the engine
The carburettor is tuned for optimum engine
performance. Use a rev counter to tune the
carburettor correctly!
Do not adjust the engine to a higher speed.
Excessive engine speed can lead to major engine
10.3 Information about the spark plug
Check the spark plug regularly after 50 hours of
Fig. 14
10.2 Carburettor adjustment
The carburettor has been adjusted optimally at the
factory. Subject to the operational altitude
(mountains or low lying areas), the carburettor may
require readjustment.
Fig. 13
The carburettor has 3 adjusting screws:
• Idling end-stop screw "T"
• Low speed mixture screw "L"
• High speed mixture screw "H"
Only qualified mechanics must adjust the regulating
screws for idle mixture "L" and full load mixture "H".
• Push in tab (30) on the standard equipment casing
and push out spark plug cap (8).
• Disconnect the spark plug cap.
• Unscrew the spark plug and dry the electrodes.
The spark plug should be replaced after 100 hours of
operation or if the electrodes are badly worn.
Do not turn the engine over while the spark plug has
been removed or the spark plug cap has been
disconnected from the high-tension ignition cable. A
spark may cause a fire!
Operating and maintenance instructions
Spark plugs with resistor (thermal value 200) are
available in different brands under the following
RCJ-6Y or comparable.
The correct electrode gap is 0.5 mm.
Only use spark plugs, where the contact nut has
been firmly fitted. Loose connectors may produce
sparks, which can cause a fire.
• Insert the spark plug into the cylinder head and
tighten it.
• Push the spark plug cap firmly over the spark plug.
• Push the spark plug cover back on again and lock
with tab (30).
Before restarting the engine, check the high-tension
ignition cable for any damage to its insulation and
ensure the cable is connected securely to the plug
10.4 Air Filter Maintenance
Dirty air filters cause a reduction in engine
performance and increase fuel consumption with
more pollutants in the exhaust gas. Engines are less
likely to start readily with a dirty and soiled air filter.
The following maintenance jobs should be carried
out frequently.
Fig. 15
Fig. 16
Remove the assembled filter element (36) from the
filter retainer (37). Please note: Never separate the
filter element
Please note: Never separate the filter element. Clean
the filter more often in extreme dust conditions. For
daily cleaning jobs simply tap the filters against a
hard object or use compressed air. Damaged air
filters should be replaced immediately. Warranty does
not apply to engine damage caused by the lack of or
improper maintenance.
Insert the new or cleaned filter element in accordance
with Fig. 16 into the filter retainer. Then close the filter
cover and secure it by clicking it into position.
Never insert moist or wet filter elements!
10.5 Replacing the fuel filter
We recommend having the fuel filter (40) changed
annually by a specialised service centre.
Fig. 17
Before opening the air filter, close the choke
prevent dirt entering the carburettor.
Press clip (35), tilt and remove the filter cover (11).
Clean around the filter.
A trained mechanic can carefully remove the fuel filter
via a wire loop through the fuel tank filler. Ensure that
the thicker part of the fuel hose on the tank wall is not
drawn into the fuel tank.
Operating and maintenance instructions
Check idling speed
Spark plug
once per year
Adjust idling speed
Air filter
as required
after every 100 hours
after every 50 hours
before starting work
The following information is based on standard operating conditions.
For special conditions, such as prolonged daily use, the recommended maintenance
intervals should be reduced accordingly.
after the first 5 hours
10.6 Scheduled maintenance
Check the electrode gap and adjust, if required
Cooling air inlet
Cylinder fins
Fuel tank
Fuel filter
All accessible screws
(except for adjusting screws)
(stop switch, throttle lever,
Check function
Visual inspection
Complete machine
Visual inspection
Implement all maintenance jobs regularly. If required, authorise a specialist service centre to maintain the
machine for you. The owner of the machine is responsible for:
• Any damage caused by a lack of maintenance, incorrect or late maintenance and repairs
• Consequential losses - including corrosion - from incorrect storage
10.7 Shutdown and storage
Preferably, store the equipment in a dry and secure place with a full fuel tank. Open flames or similar must not
be nearby. Prevent unauthorised use – particularly by children.
For stops longer than four weeks the following steps should be carried out:
• Empty and clean the fuel tank at a well-ventilated location.
• Start the engine with an empty fuel tank. Run the engine until the carburettor is empty and the engine stalls.
Otherwise the carburettor nozzles could become encrusted with residual fuel mixture and make a
subsequent start harder.
• Clean the power tool well (particularly the air intake openings, the cylinder fins, the air filter and the fuel filler
Parts subject to wear and tear; Guarantee; For USA only: ECWS/ MWC; CE Declaration of conformity
11. Parts subject to wear and tear
Various parts are subject to application-specific or
normal wear and must be replaced in good time,
when required. The following parts are subject to
normal wear and are not covered by the
manufacturer's guarantee:
• Air filter
• Fuel filter
• All rubber parts which come into contact with
• Shredder blade
• Spark plug
• Starter
12. Guarantee
The manufacturer guarantees trouble-free quality
and will cover the cost of replacing parts which are
found to be faulty in material or workmanship within
the prescribed guarantee period after the date of
purchase. Please note that specific guarantee
conditions may vary from country to country. If in
doubt, ask your equipment vendor. He is responsible
for guarantee matters.
We hope you will understand that we cannot be
liable for damage resulting from the following causes:
• Non-compliance with the operating instructions.
• Neglecting essential maintenance and repair
• Damage caused by incorrect carburettor
• Wear in normal use.
• Obvious overload by continuously exceeding
the maximum performance limit of the product.
• Using non-authorised tools.
• Use of force, incorrect treatment, misuse and
• Damage from excessive heat due to dirt buildup around the cooling fan housing.
• Attempted adjustments and repairs by
unqualified persons.
• Use of unsuitable spare parts or third party
parts, if these are the cause of the defect.
• Use of unsuitable or stale fuel.
• Damage caused by using the product in the hire
or rental industry.
For USA only
Emissions Control Warranty Statement
The Environmental Protection Agency and Solo are
pleased to explain the emission control system on
your small non-road power equipment engine. In the
US new small non- road engines must be designed,
built, and equipped to meet the Environmental
Protection Agency's standards. Solo must warrant the
emission control system on your small non- road
engine for the period of time listed below provided
there has been no abuse, neglect, or improper
maintenance of your small non-road engine.
Your emission control system includes parts such as
the carburetor, the ignition system, and the exhaust
Where a warrantable condition exists, Solo will repair
your small non-road power equipment engine at no
cost to you including diagnosis, parts, and labor.
Manufacturers Warranty Coverage
Solo's small non-road power equipment engines are
warranted for a period of two years. If any emission
control related part on your engine is defective, the
part will be repaired or replaced by Solo.
Contact Information for Authorized Service Center
Locations, Replacement Parts,
Warranty and Technical Information
Warranty repairs must be completed by a SOLO
Authorized Service Center.
5100 Chestnut Avenu
Newport News, VA 23605
Normal cleaning, adjustments or maintenance work
fall outside the guarantee provisions.
A service centre authorised by the manufacturer
must carry out all guarantee work.
In the best interest of continued technological
progress we reserve the right to change the design
and configuration of any product without prior notice.
For that reason, no claims can be accepted with
reference to text and illustrations in this manual.
Made in Germany
Postfach 60 01 52
D 71050 Sindelfingen
Tel. 07031-301-0
Fax 07031-301-130
P.O.Box 60 01 52
D 71050 Sindelfingen
Fax +49-7031-301-149
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