Lagler UNICO User guide

English / Englisch
UNICO
EDGE SANDING MACHINE UNICO
00.465.20.002 01.02.2013 *00.465.20.002*
Operation,
Maintenance, Safety
Translation of original operating instructions
for the edge sanding machine

UNICO 01.02.2013
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Handlebar
Fig. 1 Components of the edge sanding machine UNICO
Cable support
Dust bag
MultiClip fastener
for dust bag
On/Off switch
Working light
Switch box
Pipe bend
Driving motor
Fan housing
Machine handle
Extension
Motor cable
Guide roller arm
Guide roller
Attachment
Velcro sealing strip
UNICO COMPONENTS
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1 Introduction.....................................................................................................................................................................4
1.1 Characteristic features of the machine .......................................................................................................................4
1.2 Description of the machine ...........................................................................................................................................4
1.3 Proper use as intended..................................................................................................................................................5
1.4 Protective devices..........................................................................................................................................................5
2 Hazard warnings and safety instructions ....................................................................................................................6
2.1 Hazard warnings.............................................................................................................................................................6
2.2 General safety instructions ...........................................................................................................................................9
3 Technical data...............................................................................................................................................................11
4 Commissioning..............................................................................................................................................................13
4.1 Attaching the dust bag.................................................................................................................................................13
4.2 Swivelling the pressure hose......................................................................................................................................14
4.3 Installing the Velcro strip.............................................................................................................................................14
4.4 Installing the extension and the handlebar ...............................................................................................................15
4.5 Adjusting the extension and the handlebar...............................................................................................................15
4.6 Adjusting the guide rollers ..........................................................................................................................................17
4.7 Adjusting the wall-protecting wheel ..........................................................................................................................19
4.8 The machine handle on the attachment.....................................................................................................................20
4.9 Connecting the power supply cable...........................................................................................................................20
4.10 Adjusting the working light..........................................................................................................................................21
4.11 Switching on the machine...........................................................................................................................................22
4.12 Switching off the machine...........................................................................................................................................22
5 Working with the UNICO..............................................................................................................................................23
5.1 General application tips...............................................................................................................................................23
5.2 Replacing the abrasives ..............................................................................................................................................25
5.3 Removing and emptying the dust bag ........................................................................................................................28
6 Transport and storage..................................................................................................................................................30
6.1 Machine transport........................................................................................................................................................30
6.2 Machine storage...........................................................................................................................................................31
7 Maintenance work and replacement of wearing parts............................................................................................31
7.1 General cleaning and care..........................................................................................................................................32
7.2 Cleaning the V-belt drive unit......................................................................................................................................32
7.3 Tensioning the V-belt....................................................................................................................................................33
7.4 Replacing the V-belt.....................................................................................................................................................34
7.5 Replacing the guide rollers .........................................................................................................................................38
7.6 Replacing the wall-protecting wheel .........................................................................................................................38
7.7 Replacing the fluorescent tube...................................................................................................................................39
8 Regular maintenance and testing in accordance with accident prevention regulations ....................................40
9 Troubleshooting ............................................................................................................................................................42
10 Circuit diagram..............................................................................................................................................................45
11 Spare parts....................................................................................................................................................................46
12 Service passport...........................................................................................................................................................55
13 EU Declaration of conformity ......................................................................................................................................56
CONTENTS
WARNING! Death, severe physical injury or significant property damage can occur if the cor-
responding cautionary measures are not taken!
CAUTION! Moderate to light physical injury or property damage can occur if the corresponding
cautionary measures are not taken!
ATTENTION! An undesired event can occur if the corresponding instructions are not followed!
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1.1 CHARACTERISTIC FEATURES OF THE MACHINE
In Figure 1 (page 2), we have provided the UNICO with the designa-
tions of the most important components. Please take a little time to
become with the machine.
1.2 DESCRIPTION OF THE MACHINE
The edge sanding machine UNICO works with a sanding disc wheel,
which is installed in an attachment. Three attachments in various
lengths can be supplied. The housing of the attachment covers the
actual working zone. A machine handle, which is used to guide the
machine when you are working on your knees, can be installed
depending on the length of the respective attachment. Velcro seal-
ing tape is used to seal off the working zone from the discharge of
dust. The resulting increased flow speed of the air upon entering
the working zone from outside guarantees constant good suction of
the sanding dust. Inside the attachment, there is a running V-belt,
which is driven via the V-belt pulley of the motor installed vertically
on the fan housing. The two guide rollers, which support the rear
of the machine, are also installed on the fan housing. In front, the
machine rests on the sanding abrasive (three-point support). The
fan housing is provided with two additional drilled holes into which
the machine handle can be screwed if and when required. On the
rear side of the fan housing, a rotating pipe bend fitted to a pipe
union conveys the sanding dust into the dust bag. The dust bag is
fastened to the pipe bend by means of a quick fastener.
The dust bag is suspended from the cable rod by means of a textile
loop. This textile loop keeps the connection cable away from the
working zone and is inserted in the holder on the pipe bend of the
machine guiding system. This holder also includes the Allen key,
which is required to replace conventional sanding discs. The pipe
bend can be used to guide the machine when you are working on
your knees. An extension including a handlebar is installed at the
front end of the pipe end and can be used to guide the machine
when you are working in a stooped position or in an upright posi-
tion. The extension and the handlebar can be adjusted as soon as
the clamping lever has been opened.
The machine guiding system and the switch box are attached to
the motor. An On/Off switch including no-volt release as well as
the rotating and swivelling working light is fitted to the upper side
of the switch box.
Introduction
INTRODUCTION
You have purchased a high-quality product
from LÄGLER®. We wish you a great deal
of success with your UNICO. All LÄGLER®
products are subjected to a thorough in-
spection before leaving the factory.
Please read these operating instructions
completely before you begin working with
your UNICO. These operating instructions
include important information on occu-
pational safety and will provide you with
answers to many questions so that you
can work with the machine safely and
without any problems. If you cannot find a
specific subject in these operating instruc-
tions, please read the LÄGLER®application
technique guidelines “Sanding of wooden
floors” (http://www.laegler.com) or contact
our service department, your retailer or
your importer.
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1.3 PROPER USE AS INTENDED
The edge sanding machine UNICO is suitable for the dry sanding
of parquet floors, deal floors, and cork floors in dry environment.
Any other form of use is not permitted without the consent of the
manufacturer.
1.4 PROTECTIVE DEVICES
The following parts of the machine are protective devices and must
therefore be in perfect condition at all times:
Velcro sealing strip = dust protection
attachment = protection against tools
dust bag = dust protection
INTRODUCTION
WARNING!
RISK OF DEATH from electrical shock:
The machine may never be used for wet
processing operations of any kind!
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2.1 HAZARD WARNINGS
WARNING!
RISK OF DEATH from suffocation and RISK OF INJURY:
• Never wrap the power cable around your neck or other
parts of the body!
RISK OF DEATH from electrical shock:
• The machine may never be used for wet processing
operations of any kind!
• Do not expose the machine to rain! Do not use the machine
in moist or wet environments!
• To protect yourself and the machine against faults in the mains
supply use a safety switch (for German mains supply part
number in Section 11, Spare parts)!
Note the valid regulations and legal conditions in your
country!
• The machine must be switched off and the power plug must
be removed from the socket during all maintenance work and
work on the electrical equipment!
• Avoid body contact with grounded parts, e.g. pipes, radiators,
ovens, refrigerators!
• The quality of the motor cable and the power cables must
match the quality of the original LÄGLER®cable!
• The power cables must be protected from mechanical and/
or electrical damages in the workplace!
• Do not carry or pull by the machine by the cable! Do not pull
on the cable to remove the plug from the socket! Protect the
cable against heat, oil and sharp edges!
WARNING!
RISK OF DEATH, RISK OF INJURY, RISK OF
FIRE:
• Be certain to read the hazard warnings
and safety instructions before using the
machine!
• Instructyourco-workers andcolleagues
accordingly! Otherwise, these persons
could be exposed to danger or injured!
ATTENTION!
• Keep these hazard warnings and safety
instructions in a safe place!
• Note the valid regulations and legal
conditions in your country!
Hazard warnings and safety instructions
HAZARD WARNINGS AND SAFETY INSTRUCTIONS
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WARNING!
RISK OF EXPLOSION due to sparks while sanding or a high dust
concentration in the air:
• Do not use the machine near
- sources of fires,
- flammable liquids or gases,
- potentially explosive areas!
• Do not smoke in a dusty environment, e.g. while sanding or
emptying the dust bag!
RISK OF FIRE from spontaneous combustion or from sparks while
sanding:
• There is a high risk of fire when sanding woods with a large
amount of resin, oiled or waxed floors or metal! Therefore,
the machine must always be cleaned carefully directly after
sanding! Be certain to note the warning notices of the paint,
oil and wax manufacturers!
• Cloths, pads, et cetera which have been immersed in oil or wax
can spontaneously combust! Be certain to note the warning
notices of the paint, oil and wax manufacturers!
• The dust bag must always be removed from the machine
after sanding and emptied into a non-combustible con-
tainer outdoors! Cover this container with a non-combustible
cover and be certain to store it and the dust bag outdoors
(Section 5.3, Removing and emptying the dust bag)!
RISK OF FIRE from the overheating of the cables:
• Only use motor cables and power cables with three wires
and wire cross-sections of at least 1.5 mm²
HEALTH RISK caused by dust:
• Make sure that the dust bag is properly fastened to the ma-
chine!
• If the machine is operated correctly, the mandatory dust
emission values will not be exceeded! When emptying the
dust bag outdoors, a respiratory protective mask (at least
filter class P2) must be worn!
• A respiratory protective mask (at least filter class P2) must
be worn when conducting other work that creates dust, e.g.
cleaning of the machine!
HAZARD WARNINGS AND SAFETY INSTRUCTIONS
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CAUTION!
RISK OF INJURY and RISK OF PROPERTY DAMAGE from rotating
tools and parts of the machine:
• Before switching on the machine, make sure that all tools
and adjustment tools have been removed from the machine!
• The machine may not be started if the sanding plate is on the
floor! Therefore, tip the machine backwards slightly to start
the machine ( Section 4.11, Switching on the machine)!
• Do not reach into rotating tools or parts of the machine!
• Do not let children or other persons touch the machine or
cable and keep them out of the work area!
• Do not wear any long articles of clothing or jewellery! These
could be caught by moving parts!
RISK OF INJURY and RISK OF PROPERTY DAMAGE from uninten-
tional starting of the machine:
• The power plug must be removed from the socket when the
machine is switched off!
• Make sure that ON/OFF switch is not set to ON when con-
necting the machine to the mains supply!
RISK OF INJURY and RISK OF PROPERTY DAMAGE from the rolling
away, tipping or falling of the machine:
• The machine must be secured against rolling away, tipping
or falling when not in use!
Always ensure that the machine is standing securely!
RISK OF INJURY and RISK OF PROPERTY DAMAGE from unsuitable
parts:
• Only use tools, accessories and spare parts from LÄGLER®
for the UNICO ( Section 11, Spare parts)! There is no
guarantee for external parts or liability for damage caused
by them!
HEALTH RISK caused by noise:
• Use hearing protection when conducting work that produces
noise!
HAZARD WARNINGS AND SAFETY INSTRUCTIONS
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CAUTION!
RISK OF PROPERTY DAMAGE:
• Do not store the unused machine with sanding media on the
sanding plate! The sanding media can cause scratches on
the ground!
• Improper transport will result in damage to the machine!
2.2 GENERAL SAFETY INSTRUCTIONS
• Provide good illumination in the workplace!
Well lit construction sites reduce the risk of injury and allow
you to better evaluate the quality of your work.
• Keep your work area clean!
Untidy work area create a risk of accidents.
• Use the proper machines!
Do not use low-performance machines or additional devices
for heavy jobs. Do not use the machine for purposes and work
that it is not intended for.
• Do not overload the machines!
It works better and more safely in the power range noted.
• Do not bend too far over the machines!
Avoid unnatural postures. Make sure that you stay in a stable
position and keep your balance at all times.
• Be attentive!
Pay attention to your work. Work carefully and do not use the
machines if you are not concentrating.
• Maintain your machines with care!
Keep your machines clean so that you can work better and
more safely. Follow the maintenance guidelines and the
instructions for replacing tools. Regularly inspect the cable
and have it replaced by a qualified electrician if it is damaged.
Inspect the extension cable regularly and replace it if it is
damaged. Keep the handles dry and free of oil and grease.
HAZARD WARNINGS AND SAFETY INSTRUCTIONS
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• Check your machines for damage!
Before using the machines, you must inspect the safety
devices or damaged parts carefully to ensure that they are
working perfectly and as intended. Check whether the moving
parts are working properly, that they are not sticking, that no
parts are broken, whether all parts are in perfect condition
and installed properly and whether all other conditions which
could influence the operation of the machine are in order.
Damaged safety devices and parts must be properly repaired
or replaced by an authorized service shop insofar as nothing
to the contrary is indicated in the operating instructions. Dam-
aged switches must be replaced by a qualified electrician.
Do not use the machine if it cannot be started or switched
off by using its switch.
• Store your machines safely!
Store your unused machines in a dry, closed location out of
the reach of children!
HAZARD WARNINGS AND SAFETY INSTRUCTIONS
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Manufacturer....................................................... Eugen Lägler GmbH
Machine type.................................................. edge sanding machine
Serial number ................................................................see type plate
Year of manufacture......................................................see type plate
Motor design type..........................................single-phase AC motor
Voltage .........................................................220 - 230 V or 110 - 120 V
Frequency ..................................................................50 or 60 Hz (cps)
Power ..........................................................................................1.1 kW
Protection by fuses........................................................................10 A
Insulation class ...................................................................................B
Protection class ............................................................................IP 54
Safety devices............................................................ no-volt release,
temperature switch as
overload protection in motor
Capacitor
110 - 120 V ................................................................................. 130 µF
220 - 230 V ................................................................................... 30 µF
Sanding disc diameter................................... 178-180 mm (7 - 7 1/8”)
Sanding disc speed
with 50-Hz motor .......................................approx. 2800 1/min (rpm)
with 60-Hz motor .......................................approx. 3360 1/min (rpm)
Attachment height........................................................... 57 mm (2 ¼”)
Attachment length – model 350 ................................. 350 mm (13 ¾”)
Attachment length – model 230 ....................................... 230 mm (9”)
Attachment length – model 105 .................................105 mm (4 1/8”)
Overall height ...................................670 mm - 915 mm (26 3/8” - 36”)
Overall height – model 350......................................... 700 mm (27 ½”)
Overall height – model 230......................................... 570 mm (22 ½”)
Overall height – model 105......................................... 450 mm (17 ¾”)
Overall width .............................................................340 mm (13 3/8”)
Machine weight...................................21 / 20 / 19 kg (46 / 44 / 42 lbs)
Dust exposure at workplace................. < 2 mg/m3(0.024 gr./cu. yd.)
Workplace-specific noise emission values
(measuring point at operator’s ear; 1.5 m above floor)
Sanding of beechwood parquet using
sandpaper grain size 80......................................................77 dB(A)
Measurement uncertainty constant......................................4 dB(A)
Abrasive ............................... commercially available abrasives with
Ø 178 mm / 180 mm (7” - 7 1/8”)
(sandpaper, sanding grid, Scotch-Brite pad)
Vibration total value ahv ...................................................... < 2.5 m/s²
(measured at the handle)
Technical data
TECHNICAL DATA
NOTE on noise emission:
The values indicated are emission values
and must not represent safe workplace
values as well.
Although a correlation exists between
emission levels and immission levels, it is
not always possible to determine whether
additional precautionary measures are
required.
Factors that can have an effect on the
immission level existing at the workplace
include the duration of the effects, the
characteristics of the work area and other
sources of noise, e.g. the number of ma-
chines and processing operations in the
vicinity. The permissible workplace values
may also vary from country to country.
This information, however, is intended to en-
able the user to better estimate the dangers
and risks.
NOTE:
The motor data indicated here refers to
machines used in Germany or USA. Exported
machines may have other data that can be
seen on the motor type plate.
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Intended use
Dry edge-sanding of wooden and cork floors.
Basic equipment
Machine including dust bag, MultiClip fastener for dust bag, Velcro
strip for attachment, cable rod, 10 m extension cable 3 x 1.5 mm²,
O-ring as strain relief device, Allen key size 4 mm, Allen key size
5 mm, Allen key size 6 mm, respiratory protective mask (P3), and
manual of operating instructions.
Special accessories
Ear muffs “Pocket”, safety switch for fault current PRCD-S (for
German mains supply).
Wearing parts or safety-relevant parts
Please check the condition of the parts mentioned below at regular
intervals in order to be able to work safely and to achieve the best
possible results at all times:
• Renew extension cable after being damaged.
• Renew motor cable after being damaged.
• Renew switch after being damaged.
• Renew Velcro sealing tape or sealing set for attachments after
being damaged.
• Renew MultiClip fastener after being damaged.
• Renew V-belt after being worn out.
• Renew Velcro disc after being damaged.
• Renew sandpaper tensioning screw after being damaged.
• Renew dust bag after being damaged.
TECHNICAL DATA
WARNING!
RISK OF DEATH from electrical shock:
The machine may never be used for wet
processing operations of any kind!
NOTE:
You will find the corresponding part numbers
for the optional equipment and wearing
parts in Section 11, Spare parts.
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Fig. 5 Hook the cable rod into the sling on the dust bag.
Fig. 4 Tighten the MultiClip firmly by hand and tie up the
dust bag.
Fig. 3 Pull the dust bag over the suction pipe stub. The
sling A must be on top.
Fig. 2 Slide the MultiClip fastener over the opening of
the dust bag.
The section describes how to put the UNICO into service on site.
To exclude any form of damage or malfunctions, you must proceed
in the order of steps mentioned below.
CAUTION!
RISK OF INJURY and RISK OF PROPERTY DAMAGE:
Before working with the machine for the first time, operating
staff must be adequately instructed!
4.1 ATTACHING THE DUST BAG
1Unpack the machine carefully. Make sure that the packaging
materials that are no longer required are disposed of properly
in accordance with environmental protection regulations.
The packaging should be used as a transport container in
order to ensure safe machine shipment without any risks.
2Slide the MultiClip fastener over the opening of the dust bag
(Fig. 2).
3Pull the opening of the dust bag over the suction pipe stub of
the machine. Make sure that the sling on the dust bag is on
top (Fig. 3).
4Slide the MultiClip fastener approximately 1 to 2 cm (½ to 1”)
over the pipe stub.
5Tighten the MultiClip fastener firmly by hand and make sure
that the dust bag is not folded underneath the MultiClip fas-
tener. In addition, then use the string to tie up the dust bag
(Fig. 4).
6Pick up the cable rod and hook it into the sling on the top end
of the dust bag (Fig. 5).
7Insert the cable rod into the proper bracket on the pipe bend
(rear side of the machine) next to the Allen key (Fig. 6).
4
COMMISSIONING
Commissioning
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Fig. 8 Install the Velcro strip carefully to ensure properly
sealing.
Fig. 7 The pressure hose can also be rotated at the lower
plastic pipe stub.
Fig. 6 Inserting the cable rod into the proper bracket.
4.2 SWIVELLING THE PRESSURE HOSE
For your sanding work, the pressure hose can be rotated toward the
left or right depending whether you standing on the right-hand side
or on the left-hand side of the machine or whether you are kneeling
or bending down. This ensures a constant volumetric flow of the air
being sucked into the machine.
1On the pressure hose, grab the black plastic pipe stub below
the hose piece and rotate it toward the desired side. The dust
bag will swivel with the black plastic pipe stub (Fig. 7). Do not
use the upper curved pipe piece to rotate the pressure hose.
2Whenever appropriate, make sure that the dust bag is properly
positioned without any folds.
4.3 INSTALLING THE VELCRO STRIP
Depending on the thickness of the abrasive in each case, the Velcro
sealing strip on the attachment must be repositioned in order to
improve the airflow conditions at the front end of the attachment
and to seal off the sanding zone from the surrounding area.
1Switch off the machine.
2 For safety reasons, always pull the power supply plug out
of the socket to prevent the machine from being started up
unintentionally!
3Fasten the Velcro strip by one end of the adhesive strip to the
attachment and then place it all the way around the attach-
ment (Fig. 8).
4On the front side of the machine, the Velcro strip should be
about 1 mm away from the floor in order to be able to provide
an air inlet. At all other locations, the strip is supposed to be
resting on the floor.
5The Velcro strip must be renewed whenever it is worn-out.
However, you can, of course, also use the upper edge of the
Velcro strip after turning it over.
4
COMMISSIONING
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Fig. 9 Inserting the extension into the clamping piece of
the pipe bend.
Fig. 13 Undoing the clamping lever on the extension and
tilting the handlebar over into the desired position.
Fig. 12 The extension can also be pushed all the way
down to the fan housing.
Fig. 11 Undoing the clamping lever (1.), sliding the ex-
tension to suit your height (2.) and tightening the
clamping lever (3.).
Fig. 10 Inserting the handlebar into the clamping piece of
the extension and tightening the clamping lever.
4.4 INSTALLING THE EXTENSION AND THE
HANDLEBAR
1Insert the extension into the clamping piece of the pipe bend
and tighten the clamping lever firmly (Fig. 9).
2Insert the long straight end of the handlebar into the clamping
piece and tighten the clamping lever firmly. (Fig. 10).
4.5 ADJUSTING THE EXTENSION AND THE
HANDLEBAR
4.5.1 ADJUSTING THE EXTENSION
The extension of the UNICO can be adjusted to suit the height and
body position of any person performing the sanding work:
1Switch off the machine.
2 For safety reasons, always pull the power supply plug out
of the socket to prevent the machine from being started up
unintentionally!
3To adjust the handle height, undo the clamping lever at the
front end of the pipe bend (Fig. 11, 1.).
4Slide the extension upward or downward (Fig. 11, 2.). At the
bottom, it is also allowed to rest on the fan housing (Fig. 12).
5Tighten the clamping lever firmly again (Fig. 11, 3.).
6To adjust the handlebar, undo the clamping lever at the upper
end of the extension (Fig. 13, 1.).
7Tilt the handlebar over into the desired position (Fig. 13, 2.)
and then tighten the clamping lever firmly again.
4
COMMISSIONING
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Fig. 17 Installing the handlebar on the pipe bend.
Fig. 16 Undoing the clamping lever at the pipe bend and
removing the extension.
Fig. 15 Removing the handlebar.
Fig. 14 Undoing the clamping lever on the extension.
4.5.2 REMOVING THE EXTENSION
Whenever you want to work in a stooped or kneeling position, you
can also remove the extension and fasten the handlebar directly
to the pipe bend:
1Switch off the machine.
2 For safety reasons, always pull the power supply plug out
of the socket to prevent the machine from being started up
unintentionally!
3Undo the clamping lever at the upper end of the extension
(Fig. 14).
4Pull the handlebar out of the clamping piece and remove it
upward (Fig. 15). Put the handlebar aside.
5Undo the clamping lever at the front end of the pipe bend and
pull the extension upward out of the bracket (Fig. 16). Put the
extension aside.
4.5.3 INSTALLING THE HANDLEBAR
The handlebar can be installed on the pipe bend in vertical position
as well as in horizontal position.
Handlebar in vertical position:
1Remove the extension first, as described in the preceding
Section 4.5.2.
2Install the handlebar directly in the bracket on the front end
of the pipe bend (Fig. 17). Tighten the clamping lever again.
Handlebar in horizontal position:
3Use the enclosed Allen key to undo the screw on the angle
clamping connector of the pipe bend and then rotate the angle
clamping connector by 90° (Fig. 18).
4Use the Allen key to tighten the screw of the angle clamping
connector again.
4
COMMISSIONING
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Fig. 21 … the right-hand guide roller is further inside
the guide roller arm of the fan housing than the
left-hand guide roller.
Fig. 20 The sanding zone is too far to the right-hand side
means that …
Fig. 19 Correctly adjusted guide rollers. The machine is
sanding in mid-position.
4.6 ADJUSTING THE GUIDE ROLLERS
The position of the guide rollers has a direct effect on the sanding
results and on the aggressiveness of the machine. For rough sanding
operations, a larger setting angle is selected and a flatter setting
angle for fine-sanding operations.
Normally, the UNICO is supposed to sand the floor precisely at the
front side of the attachment (Fig. 19). If this is not the case, the
machine will be sanding on one side (Fig. 20 and 22). The height
of one of the guide rollers must then be readjusted (Fig. 21 and 23)
because the quality of the sanded section is not the best and also
because this has a negative effect on the suction system.
In case the setting angle of the sanding disc is too large or too
small, both guide rollers must be readjusted. Whenever too much
material is sanded off on too little surface area, the setting angle
is too large and the guide rollers must then be moved further inside
the guide roller arms of the fan housing. Whenever the sanding
capacity is insufficient and the surface being sanded is too large,
you must then move the guide rollers further out of the guide roller
arms of the fan housing.
With a correctly adjusted setting, the sanding zone is located at the
front edge of the attachment (Fig. 19).
If the machine is sanding too far to the right-hand side (Fig. 20), the
right-hand guide roller is further inside the guide roller arm of the
fan housing than the left-hand guide roller (Fig. 21).
Fig. 18 Undo the screw on the angle clamping connector
and rotate the angle clamping connector by 90°.
4
COMMISSIONING
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Fig. 25 Undo the star grip screw carefully and then adjust
the guide roller.
Fig. 24 Measure the distance between the guide roller
arm of the fan housing and the wheel fork.
Fig. 23 … the left-hand guide roller is further inside the
guide roller arm of the fan housing than the right-
hand guide roller.
However, if the machine is sanding too far to the left-hand side
(Fig. 22), the left-hand guide roller is further inside the guide roller
arm of the fan housing than the right-hand guide roller (Fig. 23).
Depending on the model in each case, you can make the correct
settings using the distances between the guide roller arms of the
fan housing and the wheel forks (Fig. 24):
UNICO 105: X = 7 mm
UNICO 230: X = 9 mm
UNICO 350: X = 11 mm
To adjust the guide rollers, proceed as follows:
1Switch off the machine.
2 For safety reasons, always pull the power supply plug out
of the socket to prevent the machine from being started up
unintentionally!
3Use a piece of wood or your foot to support the UNICO from
underneath to prevent the machine from falling onto the guide
roller.
4Undo the star grip screw on the guide roller arm of the fan
housing carefully (Fig. 25).
5Lift up the machine by grabbing it by the guide roller arm and,
at the same time, use your thumb to press down on the up-
per end of the guide roller shaft. Adjust the guide roller with
respect to the guide roller arm to the desired position and
tighten the star grip screw firmly. Put the UNICO down again.
6Carry out a trial sanding operation. If the machine does
provide the desired mid-position sanded section, repeat the
above-mentioned steps.
Fig. 22 The sanding zone is too far to the left-hand side
means that …
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Fig. 28 Remove the screws on the wall-protecting wheel
bracket and then remove the complete wall-
protecting wheel.
Fig. 27 Undo the screws on the wall-protecting wheel
bracket.
Fig. 26 Undo the screw in the centre of the wall-protect-
ing wheel and then position the wheel.
4.7 ADJUSTING THE WALL-PROTECTING WHEEL
In case of walls or baseboards with different shapes, sanding into
these walls or baseboards can be prevented by adjusting the wall-
protecting wheel.
1Switch off the machine.
2 For safety reasons, always pull the power supply plug out
of the socket to prevent the machine from being started up
unintentionally!
3Use an Allen key to undo the screw in the centre of the wall-
protecting wheel and then move the wall-protecting wheel
into the desired position (Fig. 26). Tighten the screw again.
You can also increase the adjustment distance of the wall-
protecting wheel by undoing the two screws with which the
wall-protecting wheel bracket is fastened to the attachment
(Fig. 27, 1. + 2.).
4Move the wall-protecting wheel bracket into your desired
position (Fig. 27, 3.) and then tighten the screws again.
5To check your adjustments, place the switched-off UNICO
against the wall so that the wall-protecting wheel rests
against the wall. However, the sanding disc wheel is not al-
lowed to touch the wall or the baseboard. Otherwise, readjust
the wall-protecting wheel.
In the case of applications in which you deliberately want to sand
right up to the wall, you can then move the wall-protecting wheel
completely out of the working zone.
In the case of applications in which you want to sand underneath
very low radiators or cabinets, you can then remove the wall-
protecting wheel completely:
1Switch off the machine.
2 For safety reasons, always pull the power supply plug out
of the socket to prevent the machine from being started up
unintentionally!
3Remove the two screws with which the wall-protecting wheel
bracket is fastened to the attachment and then remove the
complete wall-protecting wheel (Fig. 28).
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Fig. 32 Run the extension cable past the right-hand side
of the dust bag and then hook the strain relief ring
into the cable rod.
Fig. 31 Connect the motor cable including the extension
cable to the extension cable and then fasten the
strain relief ring to the extension cable.
Fig. 30 The machine handle can also be screwed into the
fan housing.
Fig. 29 The machine handle is used in the kneeling posi-
tion to guide the attachment.
4.8 THE MACHINE HANDLE ON THE ATTACHMENT
The machine handle is installed on the front end of the long attach-
ment (type 350) and of the medium-sized attachment (type 230).
The machine handle is used in the kneeling position to guide the
attachment (Fig. 29). The machine handle can be unscrewed and
then installed on the right-hand side or on the left-hand side of the
rear side of the fan housing. When you are kneeling, you can then
use the handle guide the machine in inaccessible locations. In the
case of the UNICO equipped with the short attachment (type 105),
the machine handle is installed on the fan housing as a standard
equipment feature.
1Switch off the machine.
2 For safety reasons, always pull the power supply plug out
of the socket to prevent the machine from being started up
unintentionally!
3Unscrew the machine handle out of the attachment.
4Screw the machine handle into the right-hand side or into the
left-hand side of the fan housing and then tighten the handle
firmly by hand (Fig. 30).
4.9 CONNECTING THE POWER SUPPLY CABLE
1Insert the plug of the motor cable into the coupling of the
extension cable (Fig. 31, 1.).
2Fasten the strain relief ring to the extension cable (Fig. 31, 2.).
Run the extension cable past the right-hand side of the dust
bag and then hook the ring into the cable rod (Fig. 32).
Make sure that the cable can slide back and forth easily
and does not pinch off the dust bag at any place. This will
guarantee that there are no negative effects on the suction
function.
3Insert the cable plug of the extension cable into a sufficiently
fuse-protected power supply socket equipped with earthing
contacts. For increased safety, we recommend the use of a
safety switch for fault current (for German mains supply: part
number in Section 11, Spare parts).
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