HUMMEL® Operating instructions

English / Englisch
BELT SANDING MACHINE HUMMEL ®
Translation of original operating instructions
for the belt sanding machine
www.laegler.com
01.08.2014
HUMMEL
®
00.100.20.002
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Operating instructions
CONTENTS
1
1.1
1.2
1.3
1.4
1.5
1.5.1
1.5.2
1.5.3
Introduction.....................................................................................................................................................................5
Features of the machine ................................................................................................................................................5
Description of the machine ...........................................................................................................................................5
Intended use of the machine .........................................................................................................................................5
Safety devices.................................................................................................................................................................6
Machine configuration ...................................................................................................................................................6
Basic equipment ...........................................................................................................................................................6
Optional equipment ......................................................................................................................................................6
Wearing parts ...............................................................................................................................................................7
2
2.1
2.2
Hazard warnings and safety instructions ...................................................................................................................8
Hazard warnings .............................................................................................................................................................8
General safety instructions ......................................................................................................................................... 12
3
Technical data .............................................................................................................................................................. 14
3.1 Data on type plate ........................................................................................................................................................ 14
3.1.1 Machine type plate .................................................................................................................................................... 14
3.1.2 Motor type plate ......................................................................................................................................................... 15
3.2 Machine data ................................................................................................................................................................ 15
4
4.1
4.2
4.3
4.3.1
4.3.2
4.3.3
4.4
Commissioning ............................................................................................................................................................. 17
Preparing the machine for operation ......................................................................................................................... 17
Connecting the power cable ....................................................................................................................................... 20
Switching on the machine ........................................................................................................................................... 21
Machines with single-phase AC motor (mains voltage 230 V and 220 V) ............................................................ 21
Machines with three-phase AC motor (mains voltage 400 V) ............................................................................... 21
General ........................................................................................................................................................................ 22
Switching off the machine ........................................................................................................................................... 23
5
5.1
5.2
5.3
5.4
Working with the HUMMEL® ..................................................................................................................................... 24
Application tips ............................................................................................................................................................. 24
Regulating the sanding drum pressure ...................................................................................................................... 25
Changing the sanding belt ........................................................................................................................................... 25
Emptying the dust bag .................................................................................................................................................. 28
6
6.1
6.2
6.3
Transport and storage .................................................................................................................................................. 30
Dismantling the machine before transportation ....................................................................................................... 31
Assembly after transportation .................................................................................................................................... 34
Storage .......................................................................................................................................................................... 35
2
HUMMEL® 01.08.2014
English / Englisch
CONTENTS
7
7.1
7.1.1
7.1.2
7.2
7.3
7.3.1
7.3.2
7.4
7.5
7.6
7.7
7.8
7.8.1
7.8.2
7.9
7.10
7.10.1
7.10.2
Maintenance work and replacement of wearing parts .......................................................................................... 36
Cleaning and care instructions ................................................................................................................................... 37
General ........................................................................................................................................................................ 37
Dismantling and cleaning of drive unit .................................................................................................................... 38
Lubrication .................................................................................................................................................................... 40
Checking and setting the sanding belt tracking ........................................................................................................ 40
Checking the sanding belt tracking .......................................................................................................................... 41
Setting the sanding belt tracking ............................................................................................................................. 42
Checking the machine setting ..................................................................................................................................... 43
Checking the dust pick-up ........................................................................................................................................... 45
Replacement of sanding drum .................................................................................................................................... 45
Replacement of tensioning roller ................................................................................................................................ 46
Replacement of rear wheel ......................................................................................................................................... 47
Replacement of rear wheel only ............................................................................................................................... 47
Replacement of complete rear wheel assembly..................................................................................................... 48
Replacement of lateral wheels ................................................................................................................................... 49
Replacement and tensioning of V-belts ..................................................................................................................... 50
Replacement of V-belts ............................................................................................................................................. 50
Tensioning of V-belts ................................................................................................................................................. 51
8
Regular maintenance and testing in accordance with accident prevention regulations .................................. 54
9
9.1
9.2
9.3
9.4
9.5
9.6
Causes of faults ............................................................................................................................................................ 56
The machine does not run or has switched off automatically................................................................................. 56
The machine attempts to start up but is not able to do so ....................................................................................... 57
The machine runs but has no or very little sanding power capacity ...................................................................... 57
The machine vibrates intensely and runs noisily ...................................................................................................... 58
The machine runs but creates a great deal of dust .................................................................................................. 58
Sanding problems (waves, strips, grooves) ............................................................................................................... 59
10
Circuit diagrams ........................................................................................................................................................... 61
11
Spare parts .................................................................................................................................................................... 64
12
Service passport .......................................................................................................................................................... 79
13
EU Declaration of conformity for machines (EU Directive 2006/42/EC) ................................................................. 80
Safety notes used in this operating instructions and their meaning:
WARNING!
Death, severe physical injury or significant property damage can occur if the
corresponding 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!
HUMMEL® 01.08.2014
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3
PARTS AND ASSEMBLIES
Lowering
lever
Cable support with
strain relief ring
Handle
Guide tube
Dust bag
ON/OFF switch
Switch box
Drive motor
Operating lever,
drive unit
Safety guard
Bracket
Machine housing
Lateral wheel
Belt guard
Wall-protecting roller
Side cover
Fig. 1
4
Bumper felt
Main features of the belt sanding machine HUMMEL®
HUMMEL® 01.08.2014
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1
INTRODUCTION
Introduction
1.1 FEATURES OF THE MACHINE
Figure 1 shows the most important components which make up the
HUMMEL®. We recommend that you take some time to become
familiar with the machine.
1.2 DESCRIPTION OF THE MACHINE
The HUMMEL ® belt sanding machine operates with a contact
sanding drum featuring a specially profiled rubber coating. The
belt tensioning fixture with integrated automatic belt guidance
is located vertically above the sanding drum. The work zone is
covered by the machine housing and detachable side cover. On
the machine housing, the electric motor is fixed in a motor bearing
bracket. The plug for connection to the mains is located at the
switch box of the motor. The motor switch with the switch positions
START / WORKING and TEST is located at the switch box. On the left
under the belt guard is the belt drive unit. The machine is moved by
means of a steering wheel at the back and two lateral wheels. Two
handles are attached to the guide tube, where the drum lowering
lever is also located and the cables and dust bag are attached.
You have purchased a high-quality product
from LÄGLER®. We wish you a great deal
of success with your HUMMEL ® . All
LÄGLER ® products are subjected to a
thorough inspection before leaving the
factory.
Please read these operating instructions
completely before you begin working
with your HUMMEL ®. These operating
instructions include important information
on occupational 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 instructions, 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.
1.3 INTENDED USE OF THE MACHINE
WARNING!
The HUMMEL® belt sanding machine is suitable for dry sanding
wooden and cork floors, plastic skating rinks and tartan running
tracks.
A specially equipped version of the machine can be used to sand
sheet metal surfaces.
RISK OF DEATH from electrical shock:
The machine may never be used for wet
processing operations of any kind!
Any application other than that described here is inadmissible
without the consent of the manufacturer!
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5
1
INTRODUCTION
1.4 SAFETY DEVICES
The following parts of the machine are safety devices and must
accordingly be kept in perfect working order:
Sealing felt
Side cover
Machine housing
Belt guard
=
=
=
=
Dust shield
Dust shield, sanding belt protection
Sanding belt protection
V-belt protection
1.5 MACHINE CONFIGURATION
1.5.1 BASIC EQUIPMENT
•
•
•
•
•
•
•
1
1
1
1
1
1
1
•
•
•
•
•
•
•
•
•
1
1
1
1
1
1
1
1
1
Machine ready for operation
Operating instructions
Dust bag
MultiClip for dust bag fixture
Cable support
O-ring as a strain relief device
Extension cable, length 10 m (394”):
for single-phase AC motor 3 x 2.5 mm² (3 x 0.0039 sq.in.)
for three-phase AC motor 5 x 1.5 mm² (5 x 0.0023 sq.in.)
Tool bag
Closed mouth wrench, size 13 mm and size 10 mm
Open mouth wrench, size 17 mm
Hexagonal socket wrench, size 4 mm
Hexagonal socket wrench, size 5 mm
Hexagonal socket wrench, size 6 mm
Setting fixture
Box wrench
Respiratory protection mask, filter class P3
1.5.2 OPTIONAL EQUIPMENT
NOTE:
You will find the corresponding part
numbers for the optional equipment and
wearing parts in Section 11, Spare parts.
6
•
•
•
•
•
Carrying handle
TransCart
Safety belt
Foldable earmuff
Safety switch for fault current PRCD-S (for German mains
supply)
HUMMEL® 01.08.2014
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1
INTRODUCTION
1.5.3 WEARING PARTS
Check the condition of the wearing parts mentioned below at
regular intervals in order to be able to work safely and optimally
at all times.
Replace the following parts in case of wear and/or damage:
•
Extension cable
•
Motor cable
•
Sealing felt
•
MultiClip
•
V-belts
•
V-belt pulleys
•
Belt tensioner
•
Sanding drum
(after daily use, exchange every 1 - 2 years)
•
Tensioning roller of the drive unit
(after daily use, exchange every 1 - 2 years)
•
Guide rollers at the drive unit
•
Guide roller at the machine housing
•
Side cover
•
Dust bag
•
O-ring used as a strain relief
•
Back wheel
•
Lateral wheels
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2
HAZARD WARNINGS AND SAFETY INSTRUCTIONS
Hazard warnings and safety instructions
2.1 HAZARD WARNINGS
WARNING!
WARNING!
RISK OF DEATH, RISK OF INJURY, RISK
OF FIRE:
8
RISK OF DEATH from suffocation and RISK OF INJURY:
•
Be certain to read the hazard warnings
and safety instructions before using
the machine!
•
Instruct your co-workers and colleagues accordingly! Otherwise these
persons could be exposed to danger
or injured!
RISK OF DEATH from electrical shock:
•
The machine may never be used for wet processing
operations of any kind!
•
Keep these hazard warnings and
safety instructions in a safe place!
•
Do not expose the machine to rain! Do not use the machine
in moist or wet environments!
•
Observe the applicable regulations
and legal requirements in your country!
•
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)!
Observe the applicable regulations and legal requirements
in your country!
•
The machine must be switched off and the power plug must
be removed from the socket during all maintenance work
and all 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® cables!
•
The motor cable and 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
cables against heat, oil and sharp edges!
•
Never wrap the power cable around your neck or other parts
of the body!
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2
HAZARD WARNINGS AND SAFETY INSTRUCTIONS
WARNING!
RISK OF DEATH from unsecured load:
•
When transported in a car or the like, the machines and all
parts must be secured against sliding!
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 sparks while sanding or from spontaneous
combustion:
•
Prior to sanding a nailed or screwed floor all nails or screws
must be countersunk deeply enough so that they cannot be
sanded:
- Countersink the nails for example with a hammer and a
punch!
- Tighten the screws!
•
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
manufacturers of paint, oil and wax!
•
Cloths, pads, et cetera which have been immersed in oil or
wax can spontaneously combust! Be certain to note the
warning notices of the manufacturers of paint, oil and wax!
•
The dust bag must always be removed from the machine
directly after sanding and emptied into a non-combustible
container outdoors! Cover this container with a noncombustible cover (
Section 5.4, Emptying the dust bag)!
•
Always transport and store used dust bags in closed and
non-combustible containers!
•
Always transport and store the machine without dust bag!
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2
HAZARD WARNINGS AND SAFETY INSTRUCTIONS
WARNING!
RISK OF FIRE from the overheating of the cables:
•
Only the following motor cables and power cables may be
used:
- Machines with motor for mains voltage 220 V or 230 V:
Cables with three wires and wire cross-sections of at least
2.5 mm² (0.0039 sq.in.).
- Machines with motor for mains voltage 400 V:
Cables with five wires and wire cross-sections of at least
1.5 mm² (0.0023 sq.in.).
•
The maximum cable length in order to connect the machine
to the mains supply must not exceed 20 m (790”)!
HEALTH RISK caused by dust:
10
•
Make sure that the dust bag is properly fastened to the
machine!
•
Do not use damaged, washed or repaired dust bags!
•
Do not work with an overfilled dust bag (
Emptying the dust bag)!
•
If the machine is operated correctly, the mandatory dust
emission values will not be exceeded! Empty the dust bag
outdoors! At the same time 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!
Section 5.4,
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2
HAZARD WARNINGS AND SAFETY INSTRUCTIONS
CAUTION!
RISK OF INJURY and RISK OF PROPERTY DAMAGE from rotating
tools and parts of the machine:
•
For all operating conditions of the machine only one operator
is required. As a consequence, for safety reasons only one
person must be in the working area while operating 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 when tilted backward or
forward!
•
The machine may not be started if the sanding drum is on
the floor!
•
Never leave the operational machine unattended!
•
Do not reach into rotating tools or parts of the machine!
•
Do not let children or other persons touch the machine or
cables 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 unintentional starting of the machine:
•
The power plug must always be removed from the socket
when the machine is switched off!
•
Make sure that ON/OFF switch is not set to ON when
connecting 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 HUMMEL® (
Section 11, Spare parts)!
Warranty claims for foreign parts or damage caused thereby
cannot be accepted!
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11
2
HAZARD WARNINGS AND SAFETY INSTRUCTIONS
CAUTION!
HEALTH RISK caused by noise:
•
Use hearing protection when conducting work that produces
noise! Observe the applicable regulations and legal requirements in your country!
RISK OF PROPERTY DAMAGE:
•
Do not store the unused machine on the sanding drum!
Otherwise the sanding media can cause scratches on the
ground or the sanding drum can be damaged!
•
Never conduct a maintenance or a replacement of wearing
parts on the newly sanded wooden floor! Thus, you will avoid
scratches or other damage to the floor!
•
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 tidy!
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 machine!
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.
12
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2
HAZARD WARNINGS AND SAFETY INSTRUCTIONS
•
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.
- Keep the handles dry and free of oil and grease.
•
Check your machines for damage!
Before using the machines, you must inspect the safety
devices 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 replaced by an
authorized service shop insofar as nothing to the contrary
is indicated in the operating instructions.
Damaged electrical components 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!
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13
3
TECHNICAL DATA
Technical data
3.1 DATA ON TYPE PLATE
3.1.1 MACHINE TYPE PLATE
In order to be able to read the machine type plate of the HUMMEL®
the machine must be switched off (
Section 4.4, Switching off
the machine)!
Fig. 2
Pull the power plug out of the socket and open
the belt guard.
1
Pull the power plug out of the socket!
2
Open the belt guard (Fig. 2).
3
After reading the type plate, close the belt guard!
The machine type plate is located on the machine housing below
the belt tensioner (Fig. 3).
The following technical data are specified on the machine type
plate (Fig. 4):
Fig. 3
Machine type plate on machine housing.
1
Eugen Lägler GmbH
Kappelrain 2
D-74363 Güglingen-Frauenzimmern
Tel. +49 7135 98900
www.laegler.com
2
Mach.-No.
XXXXX-XX
5
Weight
XX kg
1
Manufacturer
2
Serial number of machine (Mach.-No.)
3
Year of manufacture (Year)
4
Machine name (Type)
5
Weight of machine in kg (Weight)
6
Speed of sanding drum in 1/min (Rpm on drum)
7
Country of manufacture
Fußbodenschleifmaschine
2
7
Year
XXXX
4
Type
HUMMEL
6
Rpm on drum
XXXX
12345
XXXXX-XX
Made in Germany
Fig. 4
14
3
Data on machine type plate.
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3
TECHNICAL DATA
3.1.2 MOTOR TYPE PLATE
The motor type plate of the HUMMEL® is located on the switch
box of motor (Fig. 5).
The following technical data are specified on the motor type plate
(Fig. 6):
1
Manufacturer
2
Serial number of machine (Mach.-No.)
3
Year of manufacture (Year)
4
Motor size (Type)
5
Required mains voltage in volt (V)
6
Current consumption in ampere (A)
7
Motor frequency in CPS (Hz)
8
Motor power in kilowatt (KW)
9
Motor speed in 1/min (Rpm)
10
Power factor cos phi
11
Insulation class (Insul. Cl.)
12
Protection class (Prot. Cl.)
13
Type of current
14
Country of manufacture
Fig. 5
Motor type plate on switch box.
1
Eugen Lägler GmbH
Kappelrain 2
D-74363 Güglingen-Frauenzimmern
Tel. +49 7135 98900
www.laegler.com
2
Mach.-No.
XXXXX-XX
3
Year
XXXX
5
V
XXX
7
Hz
XX
11
Insul.Cl.
B
2
3.2 MACHINE DATA
Eugen Lägler GmbH
Machine type
belt sanding machine
Machine name
HUMMEL®
Serial number
see type plate (Fig. 4, Fig. 6)
Year of manufacture
see type plate (Fig. 4, Fig. 6)
Voltage
Frequency
Output
Necessary fuse protection of
mains supply
single-phase AC motor
230 V
50 Hz
(CPS)
60 Hz
(CPS)
2.2 kW
at least
16 A
at least
20 A
220 V
60 Hz
(CPS)
2.9 kW
12
8
KW
XX
Prot.Cl.
IP54
13
9
Rpm
XXXX
10 cos
0.XX
Type of Current
AC
XXXXX-XX
in Germany
Data on motor type plate.
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.
at least
20 A
Starting capacitor
60 µF
130 µF
Running capacitor
40 µF
40 µF
HUMMEL® 01.08.2014
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Fig. 6
A
XX
Type
BG 112
12345
14 Made
Manufacturer
Motor type
6
4
15
3
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
machines and processing operations in the
vicinity. The permissible workplace values
may also vary from country to country.
This information, however, is intended
to enable the user to better estimate the
dangers and risks.
Motor type
Voltage
Frequency
Output
Necessary fuse protection of
mains supply
three-phase AC motor
400 V
50 Hz (CPS)
4.0 kW
at least 16 A
Insulation class
B
Protection class
IP 54
Safety devices
Diameter of sanding drum
no-voltage release,
temperature switch as
overload protection in the
motor
175.5 mm (~ 6.9”)
Width of sanding drum
200 mm (~ 7.9”)
Speed of sanding drum
- machine with motor 50 Hz (CPS)
- machine with motor 60 Hz (CPS)
2400 1/min (rpm)
2810 1/min (rpm)
Dimension of sanding belt
200 x 750 mm (~ 7.9” x 29.5”)
Overall length of machine
1040 mm (~ 40.9”)
Overall width of machine
360 mm (~ 14.2”)
Overall height of machine
1020 mm (~ 40.2”)
Weight of machine housing
41 kg (~ 90 lbs)
Weight of motor
34 kg (~ 75 lbs)
Weight of guide tube, complete
Overall weight of machine
4 kg (~ 9 lbs)
79 kg (~ 174 lbs)
Dust emissions at workplace
(measured as per the testing requirements GS-HO-15 of German < 1 mg/m³ (~ 0.012 gr./cu.yd.)
statutory accident insurance
DGUV)
Workplace-related noise
emission values
Measurement uncertainty
constant of the noise emission
values
Vibration total value ahv
(measured at the handle)
16
76 dB(A)
4 dB(A)
< 2.5 m/s²
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4
COMMISSIONING
Commissioning
This section describes the procedure for commissioning the
HUMMEL® on site. In order to exclude the possibility of damage
and malfunctions, it is essential to proceed in the sequence outlined 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!
Fig. 7
When inserting the guide tube, make sure that
the upper rod of the lowering mechanism feeds
in correctly!
Fig. 8
After inserting the guide tube, carefully tighten
the wing screw at the lower rod.
Fig. 9
After inserting the guide tube, carefully tighten
the wing nut at the machine housing.
4.1 PREPARING THE MACHINE FOR OPERATION
1
Unpack the machine carefully. The bottom part of the supplied
transport crate makes a useful container for storage or
transportation of the machine (
Section 6, Transport and
storage). Please ensure that the packaging materials are
responsibly disposed of.
2
Press the lowering lever at the handle downwards (Fig. 7, 1).
3
Insert the guide tube into the opening in the machine housing
and at the same time insert the upper rod into the lower rod
(Fig. 7, 2).
4
Carefully tighten the wing screw at the lower rod (Fig. 8) and
the wing nut at the machine housing (Fig. 9).
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4
COMMISSIONING
Fig. 10
Lift the sanding drum off the floor by turning the
lowering lever at the handle upwards.
5
Lift the sanding drum off the floor by turning the lowering
lever at the handle upwards (Fig. 10).
6
Hook the cable support into the bracket at the top of the
guide tube (Fig. 11)
7
Fasten the dust bag firmly using the cord and the MultiClip at
the end of the guide tube (Fig. 12). Ensuring when mounting
that the opening of the guide tube is not closed.
8
Release the cover lock (Fig. 13, 1) and remove the side cover
on the right of the machine housing (Fig. 13, 2).
9
Pull the operating lever of the drive unit upwards (Fig. 13, 3).
This will lower the tensioning roller.
10
Position the sanding belt on the tensioning roller of the drive
unit (Fig. 14) and push it over the tensioning roller and the
sanding drum (Fig. 15).
Fig. 11
Hook the cable support into the bracket at the
guide tube.
Fig. 12
Mount the dust bag using the cord (1) and the
MultiClip (2 and 3) at the end of the guide tube.
Fig. 13
Release the cover lock (1), remove the side
cover (2) and lower the tensioning roller by pulling
up the operating lever (3).
Fig. 14
Position the sanding belt on the tensioning roller
of the drive unit.
Fig. 15
Push the sanding belt far enough over the sanding
drum and tensioning roller so that the sanding
drum is fully covered by the sanding belt.
18
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COMMISSIONING
11
Position the sanding belt so that it evenly covers the sanding
drum (Fig. 16, A).
WARNING!
RISK OF FIRE from the formation of sparks while sanding:
Position B of the sanding belt in Fig. 16 provoke sparking
during sanding! Avoid this without fail!
12
To tension the sanding belt, press the operating lever of the
drive unit downwards (Fig. 17). Otherwise, damage or injury
can occur!
13
Connect the machine to the mains supply (
Connecting the power cable).
Fig. 16
Position the sanding belt so that it evenly covers
the sanding drum (A). Avoid position B without
fail (RISK OF FIRE)!
Fig. 17
Tension the sanding belt by lowering the operating
lever. Otherwise, damage or injury can occur!
Fig. 18
Mount the side cover.
Section 4.2,
CAUTION!
RISK OF INJURY and RISK OF PROPERTY DAMAGE from rotating parts of the machine:
•
•
14
Always tension the sanding belt before switch on the
machine (Fig. 17)!
Always lift the sanding drum off the floor before switch
on the machine (Fig. 19)!
Before sanding, the precise tracking of the sanding belt
must be checked! Adjusted it if necessary (
Section 7.3,
Checking and setting the sanding belt tracking)!
CAUTION!
RISK OF INJURY and RISK OF PROPERTY DAMAGE from rotating parts of the machine:
•
Never reach into the area of the sanding belt while it is
running!
•
During the test run, ensure that no objects randomly positioned in the vicinity can be picked up by the sanding
belt and no other persons are in the danger area!
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COMMISSIONING
15
After the checking and setting of the sanding belt tracking
mount the side cover (Fig. 18).
16
The machine is now ready for operation (
Switching on the machine).
Section 4.3,
4.2 CONNECTING THE POWER CABLE
Fig. 19
Lift the sanding drum off the floor by turning the
lowering lever at the handle upwards.
WARNING!
RISK OF DEATH from electrical shock:
Fig. 20
•
To protect yourself and the machine against faults in the
mains supply use a safety switch PRCD (for German mains
supply
part number in Section 11, Spare parts)!
•
Observe the applicable regulations and legal requirements for your country!
RISK OF FIRE from the overheating of the cables:
Insert the plug of the motor cable in the coupler
of the extension cable (1). Fasten the strain relief
ring on the extension cable (2).
•
Only the following motor cables and power cables may
be used:
- Machines with motor for mains voltage 220 V or
230 V:
Cables with three wires and wire cross-sections of
at least 2.5 mm² (0.0039 sq.in.)!
- Machines with motor for mains voltage 400 V:
Cables with five wires and wire cross-sections of at
least 1.5 mm² (0.0023 sq.in.)!
•
Fig. 21
20
Mount the strain relief ring on the cable support.
The maximum cable length in order to connect the
machine to the mains supply must not exceed 20 m
(790”)!
1
Lift the sanding drum off the floor by turning the lowering
lever at the handle upwards (Fig. 19).
2
Insert the plug of the motor cable in the coupler of the
extension cable (Fig. 20, 1).
3
Fasten the strain relief ring on the extension cable (Fig. 20, 2)
and mount the strain relief ring on the cable support (Fig. 21).
4
Plug in the extension cable to a adequately fused mains
socket with PE contacts.
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COMMISSIONING
4.3 SWITCHING ON THE MACHINE
CAUTION!
RISK OF INJURY and RISK OF PROPERTY DAMAGE from
rotating parts of the machine:
•
Always tension the sanding belt before switch on the
machine (Fig. 17)!
•
Always lift the sanding drum off the floor before switch
on the machine (Fig. 19)!
•
Never allow the machine to run unattended!
Fig. 22
To switch on the machine turn the switch button at
the motor to position -START- and hold the switch
button for around 2 seconds in this position.
Fig. 23
Once the motor has reached its full speed, release
the switch button. The switch button will then
automatically move to position -BETRIEB (WORKING)-.
Fig. 24
To switch on the machine turn the switch button
at the motor to position -START-.
Fig. 25
Release the switch button. The button turns automatically in position -1-.
4.3.1 MACHINES WITH SINGLE-PHASE AC MOTOR
(MAINS VOLTAGE 230 V AND 220 V)
1
Lift the sanding drum off the floor by turning the lowering
lever at the handle upwards (Fig. 19)!
2
To switch on the machine turn the switch button at the motor
to position -START- and hold the switch button for around
2 seconds in this position (Fig. 22).
3
Once the motor has reached its full speed, release the switch
button. The switch button will then automatically move to
position -BETRIEB (WORKING)- (Fig. 23).
ATTENTION!
Remaining for too long in the switch position -STARTshortens the service life of the starting capacitor!
4.3.2 MACHINES WITH THREE-PHASE AC MOTOR
(MAINS VOLTAGE 400 V)
1
Lift the sanding drum off the floor by turning the lowering
lever at the handle upwards (Fig. 19)!
2
To switch on the machine turn the switch button at the motor
to position -START- (Fig. 24) and release the switch button
after the motor has reached its full speed. The switch button
will then automatically move to position -1- (Fig. 25).
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COMMISSIONING
If the motor do not start in the switch position -START- (Fig. 26, 1)
and the light on the switch box shines (Fig. 26, 2), the rotation
direction of the motor is wrong.
To change the rotation direction of the motor using the following
procedure:
Fig. 26
1
Disconnect the motor cable from extension cable!
2
Original LÄGLER ® plug with red nut at the cable outlet
(Fig. 27, A):
The motor do not start in switch position
-START- (1) and the light on the switch box
shines (2).
- Put a screwdriver in the slit of the phase changing switch
in the plug of the motor cable (Fig. 28, 1).
- To unlock the phase changing switch press the screwdriver
in the slit and at the same time turn the screwdriver at 180°
(Fig. 28, 2).
Original LÄGLER® plug with yellow nut at the cable outlet
(Fig. 27, B):
- Put a screwdriver in the slit of the phase changing switch
in the plug of the motor cable (Fig. 28, 1).
Fig. 27
- To unlock the phase changing switch turn the screwdriver
at 180° against a small resistance (Fig. 28, 2).
Original LÄGLER® plug with red nut (A) or yellow
nut (B).
ATTENTION!
The phase changing switch can only be turned in one
direction!
4.3.3 GENERAL
If the motor should ever be difficult to start in extremely cold
conditions proceed as follows:
Fig. 28
22
Change the rotation direction of the motor by
turning the phase changing switch at 180°.
1
Switch off the machine (
Section 4.4, Switching off
the machine) and remove the V-belts (
Section 7.10,
Replacement and tensioning of V-belts).
2
Switch on the machine without V-belts (
Switching on the machine).
3
Once the motor is up to operating temperature, switch off
the machine (
Section 4.4, Switching off the machine)
and mount the V-belts (
Section 7.10, Replacement and
tensioning of V-belts).
Section 4.3,
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4.4 SWITCHING OFF THE MACHINE
1
Before switch off the machine lift the sanding drum off the
floor by turning the lowering lever at the handle upwards
(Fig. 29).
2
Turn the switch button to position -0- (Fig. 30).
3
Wait until the sanding drum comes to a standstill!
Fig. 29
Lift the sanding drum off the floor by turning the
lowering lever at the handle upwards.
Fig. 30
To switch off the machine turn the switch button
to position -0-.
Fig. 31
Secure the machine against sliding!
CAUTION!
RISK OF INJURY and RISK OF PROPERTY DAMAGE:
•
Always remove the power plug from the socket after you
have switched off the machine!
•
Secure the machine against sliding! For example, place a
flat piece of wood between the floor surface and machine
housing (Fig. 31).
ATTENTION!
Do not store the unused machine on the sanding drum! Otherwise the sanding media can cause scratches on the ground
or the sanding drum can be damaged!
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WORKING WITH THE HUMMEL ®
Working with the HUMMEL ®
5.1 APPLICATION TIPS
WARNING!
ATTENTION!
RISK OF DEATH from electrical shock:
•
Always sand from left to right! This ensures that the lefthand lateral wheel always runs over the newly sanded
surface, making the surface more even with each sanding
pass and preventing waviness!
•
One sanding track comprises a forward and reverse
movement over the same lane without offset!
•
We advise a sanding track offset of 50%!
The machine may never be used for wet
processing operations of any kind!
•
Deep sanding marks due to the selection of a too coarse grit
grade can be prevented by starting the first sanding operation
with the finest grit grade possible.
•
Carry out a test sanding process using a 50 or 60 grit grade
(a few test sanding tracks). If this test is satisfactory and you
envisage a good sanding result within a reasonable period,
it is more efficient to start the sanding work with these finer
grit grade.
•
Prevent sanding marks made by previously used grit grade by
adhering to the order of the sandpaper grit grade and never
skip more than one grit grade.
•
Vacuum the floor thoroughly always directly before each
workstep (every sanding step, gap filling or surface treatment).
•
Clean the wheels of the machine before starting each new
sanding operation.
•
In order to avoid chatter marks, use sanding belts with bud
joints and tape.
•
After replacing the sanding belt, start working in poorly lit
areas of the room in order to remove the initial aggressiveness of the sanding medium.
NOTE:
For more information free of charge, please
contact: within Germany
- Telephone: 0800 / 52 34 537
- Fax:
0800 / 48 66 353
within the USA
- Telephone: 800-848-6635
or
- Telephone: 0049 - 7135 - 98 90 - 0
- Fax:
0049 - 7135 - 98 90 - 98
- E-mail:
info@laegler.com
- Internet:
http://www.laegler.com
You will also find important and interesting
application tips in the LÄGLER® application
technique guidelines “Sanding of wooden
floors” (http://www.laegler.com)!
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WORKING WITH THE HUMMEL ®
5.2 REGULATING THE SANDING DRUM PRESSURE
The lever can be used to set three different drum pressure stages.
These three stages - COARSE / MEDIUM / FINE - are designated
on the notch plate as -GROB / MITT. / FEIN- (Fig. 32).
The pressure stage indications relate to the grit grade sequence.
The sanding pressure should be adjusted inline with the grit grade
sequence and reduced as the fineness of the grit grade increases.
This setting facility permits you to adjust the drum pressure to the
prevailing circumstances.
GROB (COARSE) = high sanding pressure for coarse grit grade
MITT. (MEDIUM) = middle sanding pressure for medium grit
grade
FEIN (FINE)
= low sanding pressure for fine grit grade
In order to avoid dish-outs when sanding soft wood floors, the
sanding pressure should be reduced and the sanding speed
increased.
Fig. 32
Different sanding pressure stages can be selected
using the setting lever.
Fig. 33
Lift the sanding drum off the floor by turning the
lowering lever at the handle upwards.
Fig. 34
Release the cover lock (1), remove the side
cover (2) and lower the tensioning roller by pulling
up the operating lever (3).
5.3 CHANGING THE SANDING BELT
Depending on the type of sanding process you wish to perform,
different abrasive grit grades can be selected. In order to change
the abrasive, proceed as follows:
1
Lift the sanding drum off the floor by turning the lowering
lever at the handle upwards (Fig. 33).
2
Switch off the machine and pull the power plug out of the
socket!
3
Release the cover lock (Fig. 34, 1) and remove the side cover
on the right of the machine housing (Fig. 34, 2).
4
To release the tension of the sanding belt, pull the operating
lever of the drive unit upwards (Fig. 34, 3). This will lower the
tensioning roller.
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5
WORKING WITH THE HUMMEL ®
Fig. 35
5
Remove the worn sanding belt from the tensioning roller and
the sanding drum (Fig. 35).
6
Position the new sanding belt on the tensioning roller of the
drive unit (Fig. 36) and push it over the tensioning roller and
the sanding drum (Fig. 37).
7
Position the sanding belt so that it evenly covers the sanding
drum (Fig. 38, A).
Remove the sanding belt.
WARNING!
RISK OF FIRE from the formation of sparks while sanding:
Position B of the sanding belt in Fig. 38 provoke sparking
during sanding! Avoid this without fail!
Fig. 36
Position the new sanding belt on the tensioning
roller of the drive unit.
Fig. 37
Push the sanding belt far enough over the sanding
drum and tensioning roller so that the sanding
drum is fully covered by the sanding belt.
26
Fig. 38
Position the sanding belt so that it evenly covers
the sanding drum (A). Avoid position B without
fail (RISK OF FIRE)!
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WORKING WITH THE HUMMEL ®
8
To tension the sanding belt, press the operating lever of the
drive unit downwards (Fig. 39). Otherwise, damage or injury
can occur!
9
Connect the machine to the mains supply (
Connecting the power cable).
Section 4.2,
CAUTION!
Fig. 39
Tension the sanding belt by lowering the operating
lever. Otherwise, damage or injury can occur!
Fig. 40
Mount the side cover.
RISK OF INJURY and RISK OF PROPERTY DAMAGE from
rotating parts of the machine:
•
Always tension the sanding belt before switch on the
machine (Fig. 39)!
•
Always lift the sanding drum off the floor before switch
on the machine (Fig. 33)!
10
Before sanding, the precise tracking of the sanding belt
must be checked! Adjusted it if necessary (
Section 7.3,
Checking and setting the sanding belt tracking)!
CAUTION!
RISK OF INJURY and RISK OF PROPERTY DAMAGE from
rotating parts of the machine:
•
Never reach into the area of the sanding belt while it is
running!
•
During the test run, ensure that no objects randomly
positioned in the vicinity can be picked up by the sanding
belt and no other persons are in the danger area!
11
After the checking and setting of the sanding belt tracking
mount the side cover (Fig. 40).
12
It is now possible to execute the next sanding process with
the machine.
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5
WORKING WITH THE HUMMEL ®
5.4 EMPTYING THE DUST BAG
WARNING!
RISK OF FIRE from the formation of sparks while sanding:
Fig. 41
•
The dust bag must always be removed from the machine
after sanding and emptied into a non-combustible container outdoors!
•
Cover this container with a non-combustible cover!
•
Always transport and store used dust bags in closed and
non-combustible containers!
•
Note the warning on the guide tube (Fig. 41)!
Note the warning on the guide tube!
HEALTH RISK caused by dust:
In order to ensure that the dust values in the air do not exceed
the prescribed threshold levels, please note:
•
The dust bag must be emptied when it is one-third full at
the very latest in order to prevent a deterioration of the
suction performance due to the lack of filtering surface
area!
•
Do not work with an overfilled dust bag!
•
The dust bag must be emptied outdoors!
•
When emptying the dust bag, wear a respiratory protective
mask (at least filter class P2)!
•
Do not wash, patch or repair the dust bag in any other
manner!
•
Damaged dust bags must be replaced with new ones!
Use exclusively original LÄGLER® dust bags for the HUMMEL® (part
number in Section 11, Spare parts)!
28
1
Lift the sanding drum off the floor by turning the lowering
lever at the handle upwards (Fig. 45).
2
Switch off the machine and pull the power plug out of the
socket!
3
Wear the respiratory protective mask (at least filter class
P2)!
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WORKING WITH THE HUMMEL ®
4
Remove the MultiClip (Fig. 42, 1 and 2) and open the cord at
the dust bag (Fig. 42, 3).
5
Take the dust bag away and close it with the cord.
6
Empty the dust bag into a non-combustible container
outdoors and cover this container with a non-combustible
cover (RISK OF FIRE)!
7
Fasten the empty dust bag firmly using the cord and the
MultiClip at the end of the guide tube. Ensuring when
mounting that the opening of the guide tube is not closed.
Wear the respiratory protective mask!
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Fig. 42
Remove the MultiClip (1 and 2) and open the cord
at the dust bag (3).
29
6
TRANSPORT AND STORAGE
Transport and storage
WARNING!
RISK OF INJURY and RISK OF PROPERTY DAMAGE:
When transported in a car or the like, the machines and all
parts must be secured against sliding!
RISK OF FIRE from spontaneous combustion or the formation
Fig. 43
Transport or storage of the machine on a flat piece
of wood.
of sparks while sanding:
•
Oil or wax can lead to spontaneous combustion! Therefore, the machine must always be cleaned carefully
before transport or storage!
•
Always transport and store the machine without dust
bag! Store the used dust bag in a closed non-combustible
container!
ATTENTION!
Fig. 44
30
Transport or storage of the machine on the bottom
part of the transport crate.
•
During transport or storage, place a flat piece of wood
between the floor surface and machine housing (Fig. 43)!
This prevents the housing from slipping and stops the
drum being in direct contact with the floor!
•
During transport or storage, the machine can also be
firmly lashed to the bottom part of the supplied transport
crate using two belts (Fig. 44)! This will prevent damage
to the sanding drum and stop the wheels becoming out
of round!
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TRANSPORT AND STORAGE
6.1 DISMANTLING THE MACHINE BEFORE
TRANSPORTATION
For transportation, the machine can be dismantled into three parts:
Guide tube, motor and machine housing. During manual transport
over roads and pavements, to protect the wheels and sanding
drum, use the TransCart (part number in Section 11, Spare parts).
1
Lift the sanding drum off the floor by turning the lowering
lever at the handle upwards (Fig. 45).
2
Switch off the machine and pull the power plug out of the
socket!
3
Empty the dust bag (
4
Loosen the two motor nuts at the motor bearing bracket
(Fig. 46).
The motor nut must only be backed out from the fitting
between the motor nut and motor bearing bracket, and not
completely removed (Fig. 47).
5
Open the belt guard (Fig. 48).
6
Release the tension of the V-belts by turning the eye bolt at
the motor counterclockwise (Fig. 49).
Fig. 48
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Fig. 45
Lift the sanding drum off the floor by turning the
lowering lever at the handle upwards.
Fig. 46
Loosen the two motor nuts.
Fig. 47
Turn the two motor nuts out so far (1) until the two
nuts used to fit into the motor bearing bracket are
exposed (2).
Fig. 49
Release the tension of the V-belts by turning the
eye bolt at the motor counterclockwise.
Section 5.4, Emptying the dust bag).
Pull the power plug out of the socket and open
the belt guard.
31
6
TRANSPORT AND STORAGE
CAUTION!
RISK OF INJURY:
During dismantling and mounting the V-belts, take care of
your fingers
danger of crushing!
Fig. 50
Remove the suction V-belt.
7
Turn the motor pulley and allow the suction V-belt to run off
the motor pulley (Fig. 50).
8
Turn the lower pulley and allow the drive V-belt to run off the
lower pulley (Fig. 51).
If necessary, use the box wrench (see tool kit) to turn the
lower pulley exclusively clockwise!
ATTENTION!
Fig. 51
Allow the drive V-belt to run off the lower pulley.
If necessary, use the box wrench (see tool kit) to
help you. Turn the pulley exclusively clockwise
in order not to loosen the nut!
Fig. 52
Remove the motor from the machine housing.
Fig. 53
Press the lowering lever at the handle downwards
to lower the sanding drum onto the floor.
32
Only turn the nut with the box wrench at the lower pulley
clockwise, as otherwise the nut will work loose (left-hand
thread)!
9
Remove the motor from the machine housing (Fig. 52) and
secure it during transport against slipping and damage!
10
Press the lowering lever at the handle downwards (Fig. 53)
to lower the sanding drum onto the floor.
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TRANSPORT AND STORAGE
11
Open the wing screw at the lower rod (Fig. 54, 1) and the
wing nut at the machine housing (Fig. 54, 2)
12
Pull the guide tube out of the machine housing (Fig. 54, 3).
ATTENTION!
Do not tighten the wing nut at the machine housing while
the guide tube is removed (Fig. 55)! Otherwise the machine
housing could break!
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Fig. 54
After opening the wing screw (1) and wing nut (2)
which fasten the rod linkage, the guide tube can
be drawn out of the machine housing (3).
Fig. 55
While the guide tube is removed do not tighten
the wing nut at the machine housing!
33
6
TRANSPORT AND STORAGE
6.2 ASSEMBLY AFTER TRANSPORTATION
When assembling the HUMMEL® after transport, adhere to the
following sequence of work steps:
Fig. 56
When inserting the guide tube, make sure that
the upper rod of the lowering mechanism feeds
in correctly!
1
Press the lowering lever at the handle downwards (Fig. 56, 1).
2
Insert the guide tube into the opening in the machine housing
and at the same time insert the upper rod into the lower rod
(Fig. 56, 2).
3
Carefully tighten the wing screw at the lower rod (Fig. 57)
and the wing nut at the machine housing (Fig. 58).
4
Lift the sanding drum off the floor by turning the lowering
lever at the handle upwards (Fig. 59).
5
Place the motor in the motor bearing bracket (Fig. 60) and
tighten the two motor nuts slightly (Fig. 61).
Fig. 57
After inserting the guide tube, carefully tighten
the wing screw at the lower rod.
Fig. 58
After inserting the guide tube, carefully tighten
the wing nut at the machine housing.
Fig. 59
Lift the sanding drum off the floor by turning the
lowering lever at the handle upwards.
Fig. 60
Place the motor in the motor bearing bracket.
Fig. 61
Tighten the two motor nuts.
34
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TRANSPORT AND STORAGE
6
Mount the V-belts and tension them by turning the eye bolt
at the motor clockwise (Fig. 62).
7
Tighten the two motor nuts (Fig. 61).
8
Close the belt guard (Fig. 63).
9
Mount the dust bag at he guide tube (
Preparing the machine for operation).
Section 4.1,
10
Connect the machine to the mains supply (
Connecting the power cable).
Section 4.2,
11
The machine is now ready for use.
Fig. 62
Mount the V-belts and tension them by turning the
eye bolt at the motor clockwise.
Fig. 63
Close the belt guard.
6.3 STORAGE
WARNING!
RISK OF FIRE from the formation of sparks while sanding:
•
Always transport and store the machine without dust bag!
•
Store the emptied dust bag in a closed non-combustible
container!
If you wish to keep the machine in storage for a protracted period,
ensure that it is kept dry and free of the influence of frost in a location without excessive temperature fluctuations.
Store your unused machine in a dry, closed location out of the
reach of children!
ATTENTION!
When storing for long periods, place the machine on the
bottom part of the supplied transport crate (Fig. 44)! This will
prevent damage to the sanding drum and stop the wheels
becoming out of round!
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35
7
MAINTENANCE WORK AND REPLACEMENT OF WEARING PARTS
Maintenance work and replacement
of wearing parts
WARNING!
RISK OF DEATH from electrical shock and RISK OF INJURY
from rotating parts of the machine:
•
All extensive maintenance work, especially on the electrical equipment, must be conducted by a qualified expert
for safety reasons!
•
All maintenance work must be conducted with the machine
switched off and with the power plug removed from the
socket!
ATTENTION!
•
Only use original spare parts from LÄGLER ®! This is
the only way to ensure that your machine continues to
perform! Warranty claims for foreign parts or damage
caused thereby cannot be accepted!
•
Never conduct a maintenance or a replacement of
wearing parts on the newly sanded wooden floor! Thus,
you will avoid scratches or other damage to the floor!
•
Never use any cleaning products which contain solvents!
Periodically but at the latest when you notice that damage has occurred, a variety of maintenance procedures have to be performed.
For this work, use exclusively original spare parts from LÄGLER®.
Work in a clean, well lit location and proceed in accordance with
these operating instructions. In the tool kit, you will find all the tools
required to carry out the work described below.
It takes only a minimal amount of time to inspect the machine,
but this precautionary measure can save subsequent complaints
brought about by minor damage to the machine. Performing regular
maintenance work will help to retain the value of the machine and
is also in the interests of your own safety.
36
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MAINTENANCE WORK AND REPLACEMENT OF WEARING PARTS
7.1 CLEANING AND CARE INSTRUCTIONS
WARNING!
RISK OF FIRE from spontaneous combustion and the
formation of 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!
7.1.1 GENERAL
Before starting work, you should perform the following care procedure in order to ensure that the machine is in full working order
and produces the customary high-quality sanding finish:
•
Check the tensioning roller and the sanding drum for damage.
Clean the parts carefully and ensure that the rubber coating
on the rollers is not damaged.
•
Check the sanding belt tracking and adjust it if necessary
using a grit grade 120 sanding belt (
Section 7.3, Checking
and setting the sanding belt tracking).
•
Check if the guide rollers at the drive unit and inside the
machine housing are rotatable easily!
Guide rollers which are not rotatable easily provoke
sparking during sanding and must be replaced without fail
(part number in Section 11, Spare parts)!
•
Clean the wheels of the machine.
•
Check the tension of the V-belts and correct it if necessary
with the aid of the eye bolt at the motor (
Section 7.10,
Replacement and tensioning of V-belts).
•
Check that the lowering rod linkage is easy running.
•
Check the dust suction system and the dust bag for leaks
and damages.
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•
Carry out a visual inspection of the electrical equipment
(extension cable, plug, couplings).
7.1.2 DISMANTLING AND CLEANING OF DRIVE UNIT
The drive unit should be removed and cleaned at least once a week
if the machine is used every day.
ATTENTION!
Fig. 64
Lift the sanding drum off the floor by turning the
lowering lever at the handle upwards.
A dirty drive unit avoids an ideal sanding belt adjustment!
This cause negative effects to the sanding result!
The drive unit is removed using the following procedure:
Fig. 65
Fig. 66
Fig. 67
38
Release the cover lock (1), remove the side
cover (2) and lower the tensioning roller by pulling
up the operating lever (3).
1
Lift the sanding drum off the floor by turning the lowering
lever at the handle upwards (Fig. 64).
2
Switch off the machine and pull the power plug out of the
socket!
3
Release the cover lock (Fig. 65, 1) and remove the side cover
on the right of the machine housing (Fig. 65, 2).
4
Pull the operating lever of the drive unit upwards (Fig. 65, 3).
This will lower the tensioning roller.
5
Remove the sanding belt from the tensioning roller and the
sanding drum (Fig. 66).
6
If you wish to remove the tensioning roller of the drive unit
(
Section 7.7, Replacement of tensioning roller), press the
operating lever of the drive unit downwards (Fig. 67).
7
Remove the operating lever of the drive unit by unscrewing
(Fig. 68).
Remove the sanding belt.
Press the operating lever of the drive unit downwards.
Fig. 68
Unscrew the operating lever of the drive unit.
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8
Hold on the drive unit and remove the three screws at the
same time (Fig. 69)! Therefore the drive unit cannot fall on
the sanding drum.
9
Carefully remove the drive unit (Fig. 70) and clean it. Never
use any cleaning products which contain solvents!
WARNING!
Fig. 69
Hold on the drive unit and remove the three screws
at the same time.
Fig. 70
Carefully remove the drive unit.
Fig. 71
The two guide rollers at the drive unit must be rotatable easily! Otherwise they must be replaced!
RISK OF FIRE from the formation of sparks while sanding:
•
The two guide rollers at the drive unit must be rotatable
easily (Fig. 71)!
•
Guide rollers which are not rotatable easily provoke
sparking during sanding and must be replaced without
fail (part number in Section 11, Spare parts)!
10
Reassemble in reverse order.
11
After mounting the drive unit, check the precise tracking of
the sanding belt and adjust it if necessary (
Section 7.3,
Checking and setting the sanding belt tracking)!
Regular exchange of the sanding drum and tensioning roller guarantees a constant degree of operating quality and performance.
When working every day with the machine, they must be exchanged
every 1 – 2 years, otherwise every 3 – 4 years (
Section 7.6,
Replacement of sanding drum and Section 7.7, Replacement of
tensioning roller).
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7.2 LUBRICATION
Machines up to year of manufacture 1997:
For general upkeep of the machine, after around 100 operating
hours we recommend sparing lubrication of the two lubrication
nipples at the wheel bearings using a manual grease gun (tool kit)
using ball bearing grease.
ATTENTION!
In machines from year of manufacture 1998, the lubrication
points at the wheel bearing has been replaced by a selflubricating plastic bushing. This bushing does not require
lubrication! Never use sprays such as WD 40 or similar!
In order to guarantee lasting easy running of the moving parts, lubricate at regular intervals at the following lubrication points (Fig. 72):
Fig. 72
Lubrication points which should be regularly oiled.
A Top part of the rod linkage at the lever plate
B Lever plate on the handle shaft
To do this, tilt the machine slightly to one side and allow a small
amount of oil to run into the lubrication points.
C Wing screw on the bottom part of the rod linkage
D Guide tube in the machine housing
E Wing nut at the machine housing
Use customary lubricating oil for these lubrication points - never
use grease or sprays such as WD 40 or similar!
7.3 CHECKING AND SETTING THE SANDING BELT
TRACKING
The sanding belt tracking must be checked every time the sanding
belt is exchanged, but at least once a day!
CAUTION!
RISK OF INJURY and RISK OF PROPERTY DAMAGE:
During the test run, the sanding drum must be raised off the
floor (Fig. 73)!
40
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7.3.1 CHECKING THE SANDING BELT TRACKING
1
Lift the sanding drum off the floor by turning the lowering
lever at the handle upwards (Fig. 73)!
2
Switch off the machine!
3
Release the cover lock (Fig. 74, 1) and remove the side cover
on the right of the machine housing (Fig. 74, 2).
Fig. 73
Lift the sanding drum off the floor by turning the
lowering lever at the handle upwards
Fig. 74
Release the cover lock (1) and remove the side
cover (2).
Fig. 75
Single-phase AC motor:
Hold the switch button for around 2 seconds
in -TEST- position and control the sanding belt
tracking at the same time. After this release the
switch button.
Fig. 76
Three-phase AC motor:
Hold the switch button for around 2 seconds in
-START- position and control the sanding belt
tracking at the same time. After this turn the
switch button in position -0-.
CAUTION!
RISK OF INJURY and RISK OF PROPERTY DAMAGE from
rotating parts of the machine:
4
•
Never reach into the area of the sanding belt while it is
running!
•
During the test run, ensure that no objects randomly positioned in the vicinity can be picked up by the sanding
belt and no other persons are in the danger area!
Machines with single-phase AC motor
(mains voltage 230 V and 220 V):
Turn the switch button in position -TEST- and hold the switch
button for around 2 seconds in this position (Fig. 75). At the
same time control the sanding belt tracking. After this release
the switch button.
Machines with three-phase AC motor
(mains voltage 400 V):
Turn the switch button in position -START- and hold the switch
button for around 2 seconds in this position (Fig. 76). At the
same time control the sanding belt tracking. After this turn
the switch button to position -0-.
5
If the sanding belt runs to the front (towards A in Fig. 77) or
to the back (towards B in Fig. 77) the setting of the sanding
belt regulation is necessary (
Section 7.3.2, Setting the
sanding belt tracking). If the sanding belt tracking is alright,
mount the side cover (Fig. 78).
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7.3.2 SETTING THE SANDING BELT TRACKING
Should the setting of the sanding belt tracking be necessary,
proceed as follows:
Fig. 77
Fig. 78
If the sanding belt runs in direction of A or B, the
setting of the sanding belt regulation is necessary.
1
Lift the sanding drum off the floor by turning the lowering
lever at the handle upwards (Fig. 73)!
2
Switch off the machine!
3
Release the cover lock (Fig. 74, 1) and remove the side cover
on the right of the machine housing (Fig. 74, 2).
4
Check whether any soiling at the tensioning roller calls for
readjustment. If so, the tensioning roller must be cleaned
(
Section 7.1.2, Dismantling and cleaning of drive unit)
and the sanding belt tracking must be checked again
(
Section 7.3.1, Checking the sanding belt tracking).
5
Always set the sanding belt tracking using a sanding belt with
as fine a grit grade as possible (= flexible sanding belt). This
is because the more flexible the sanding belt, the precisely
it is possible to set the tensioning roller.
Mount the side cover.
Mount the sanding belt (
Section 5.3, Changing the sanding
belt) and carry out a test run (
Section 7.3.1, Checking the
sanding belt tracking).
If the sanding belt is running out of true (in direction of A
or B in Fig. 77), it must be turned around and another test
performed.
Fig. 79
If the sanding belt runs to the front (in direction of A in Fig. 77)
and after turning over runs to the back (in direction of B in
Fig. 77) or vice versa, the sanding belt is of poor quality and
is not usable (conical sleeve)!
Adjust the sanding belt tracking at the setting
screw of the drive unit (see description on the
right).
If the sanding belt runs in the same direction both times, the
tensioning roller requires readjustment.
6
If readjustment of the tensioning roller is necessary, release
the lock nut at the drive unit (Fig. 79, 1) and adjust the
tensioning roller with the screw (Fig. 79, 2):
A Rotation clockwise:
sanding belt runs to the front
B Rotation counterclockwise:
sanding belt runs to the back
42
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7
If the sanding belt tracking is seen to be correct after
adjusting once, tighten the lock nut again (Fig. 79, 3).
CAUTION!
RISK OF INJURY and RISK OF PROPERTY DAMAGE from
rotating parts of the machine:
If the lock nut at the upper part of the drive unit is not tightened, it will loosen during operation of the machine and falls
on rotating parts!
ATTENTION!
If the lock nut at the upper part of the drive unit is not tightened, the tensioning roller can move out of place! This cause
negative effects to the sanding result!
8
If the sanding belt tracking is seen to be not correct after
adjusting once, repeat the process.
9
After successful setting of the sanding belt tracking mount
the side cover (Fig. 78).
7.4 CHECKING THE MACHINE SETTING
ATTENTION!
The best working result is achieved when the sanding drum
sands centrally! Only with this setting is it possible to avoid
the belt from sanding too deep on one side, resulting in
unwanted sanding marks!
From time to time, or as a result of incorrect transportation, it is
possible for the machine to become incorrectly adjusted. Incorrect
adjustment is indicated by one-sided sanding of the sanding drum,
which can lead to sanding tracks and complaints. Correction of
machine setting is performed as follows:
1
Lift the sanding drum off the floor by turning the lowering
lever at the handle upwards (Fig. 73).
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Fig. 80
Fig. 81
2
Switch off the machine and pull the power plug out of the
socket!
3
Tilt the machine backwards over the safety guards so that
you can see the wheel bearings (Fig. 80). Ensure that the
machine is standing securely!
4
The wheel on the belt guard side can be adjusted by releasing
the tension screw. The other wheel is firmly fixed using a
screw.
5
For setting, first take the actual position of the adjustable
wheel using the setting fixture (right-hand wheel seen from
below). Position the fixture against the machine housing in
such a way that it rests not only against the machine housing
on both sides, but also at the adjustable wheel. If necessary,
turn the threaded pin of the setting device. To do this, release
the nut of the setting fixture (Fig. 81).
6
If the machine is sanding more heavily on the belt guard
side (A in Fig. 82), the wheel must be adjusted away from
the belt guard (direction of B in Fig. 82).
Tilt the machine backwards. Ensure that the
machine is standing securely!
Take the actual position of the adjustable wheel
using the setting fixture (right-hand wheel seen
from below).
If the machine is sanding more heavily on the side cover
side (C in Fig. 82), the wheel must be adjusted towards the
belt guard (direction of D in Fig. 82).
Now adjust the threaded pin of the setting device in the
relevant direction by the required amount.
Fig. 82
Fig. 83
44
If the machine is sanding more on side A, the
wheel must be adjusted in the direction of B.
If the machine is sanding more on side C, the
wheel must be adjusted in the direction of D.
7
Release the clamping screw at the wheel clamp of the
adjustable wheel (Fig. 83) and place the setting fixture against
the machine housing again.
8
Set the wheel in the required position by means of the setting
fixture so that the wheel lining just still makes contact with
the threaded pin when turning, and tighten the clamping
screw again.
9
Carry out a sanding test to check whether the machine is
now correctly adjusted. If not, the process will have to be
repeated.
Release the screw on the right-hand wheel clamp.
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7.5 CHECKING THE DUST PICK-UP
In order to guarantee optimum dust pick-up for your safety and that
of others, the following points must be observed:
•
Always used original LÄGLER® dust bags!
•
Never use damaged, washed, patched or in any other way
repaired dust bags!
•
Ensure that the sealing felt is not worn or damaged (Fig. 84)!
•
Check the suction system for blockages or deposits!
Fig. 84
The sealing felt must not demonstrate any signs
of damage, otherwise replace!
Fig. 85
Release the cover lock (1), remove the side
cover (2) and lower the tensioning roller by pulling
up the operating lever (3).
Fig. 86
Release the drum nut clockwise (left-hand
thread), if necessary by knocking gently with a
soft hammer.
Never use a steel hammer!
7.6 REPLACEMENT OF SANDING DRUM
Use exclusively original LÄGLER® sanding drums (part number in
Section 11, Spare parts)!
1
Lift the sanding drum off the floor by turning the lowering
lever at the handle upwards (Fig. 73).
2
Switch off the machine and pull the power plug out of the
socket!
3
Release the cover lock (Fig. 85, 1) and remove the side cover
on the right of the machine housing (Fig. 85, 2).
4
Pull the operating lever of the drive unit upwards (Fig. 85, 3).
This will lower the tensioning roller.
5
Remove the sanding belt from the tensioning roller and the
sanding drum.
6
Tilt the machine backwards over the safety guards (Fig. 80).
Ensure that the machine is standing securely!
7
Open the drum nut by turning the box wrench (see tool kit)
clockwise (left-hand thread) and unscrew the drum nut
(Fig. 86).
If necessary, take a soft hammer to help you loosen the nut.
Never use a steel hammer!
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8
Turn the sanding drum in such a way that the groove is
pointing upwards to ensure that the parallel key is not lost
(Fig. 87). Now pull the sanding drum out sideways out of the
housing.
If the sanding drum is too stiff to move, use a lath (Fig. 88) to
dislodge it, so as not to damage the machine! Never attempt
to loosen the sanding drum by hitting with a hammer!
Fig. 87
Turn the sanding drum in such a way that the
groove is pointing upwards to ensure that the
parallel key is not lost.
9
Clean the shaft stump and oil it slightly.
10
Push on the new sanding drum. Pay attention to the parallel
key!
11
Perform the remaining assembly steps in reverse order.
7.7 REPLACEMENT OF TENSIONING ROLLER
Use exclusively original LÄGLER® tensioning rollers (part number
in Section 11, Spare parts)!
Fig. 88
Fig. 89
Fig. 90
46
If the sanding drum is too stiff to be removed,
carefully lever it away with a lath.
Never use brute force!
Turn the crank in the indicated direction (1).
Remove the two fixing screws in the tensioning
roller while holding onto the locknuts with a
closed mouth wrench (2).
1
Remove the drive unit (
cleaning of drive unit).
Section 7.1.2, Dismantling and
2
Clamp the drive unit in a vise. If you are unable to reach the
lock nuts with the closed-mouth wrench, screw the lever into
the crank again and turn it downwards (Fig. 89, 1) so that the
top of the drive unit is lifted up.
3
Remove the two fixing screws in the tensioning roller while
holding onto the locknuts with a closed-mouth wrench
(Fig. 89, 2).
4
Remove the tensioning roller and check the compression
spring. Should this be deformed, the compression spring
(part number in Section 11, Spare parts) must be renewed.
5
Clean the drive unit. Do not use any cleaning products which
contain solvents!
6
Insert the compression spring and the tensioning roller.
Ensure that the surfaces on the shaft ends of the tensioning
roller are pointing upwards (Fig. 90)!
Insert the new tensioning roller, ensuring that the
surfaces on the shaft ends are pointing upwards!
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7
Tighten the screw of the unsprung bearing pedestal side
(Fig. 91, 1).
8
Turn the screw on the sprung side of the tensioning roller
(Fig. 91, 2) far enough so that the tensioning roller is
positioned parallel to the upper part of the drive unit (Fig. 92).
9
Tighten the lock nuts of the fixing screws!
Fig. 91
Tighten the side without spring (1) and then the
side with spring (2), so that …
Fig. 92
… the tensioning roller is positioned parallel to
the top of the drive unit.
Fig. 93
Lift the sanding drum off the floor by turning the
lowering lever at the handle upwards
CAUTION!
RISK OF INJURY and RISK OF PROPERTY DAMAGE from
rotating parts of the machine:
If the lock nuts of the fixing screws are not tightened, they
will loosen during operation of the machine and fall on rotating parts!
ATTENTION!
If the lock nuts of the fixing screws are not tightened, the
tensioning roller can move out of place! This cause negative
effects to the sanding result!
10
Remount the drive unit (
cleaning of drive unit).
Section 7.1.2, Dismantling and
11
Check the sanding belt tracking (
the sanding belt tracking).
Section 7.3.1, Checking
7.8 REPLACEMENT OF REAR WHEEL
Use exclusively original LÄGLER® rear wheels (part number in
Section 11, Spare parts)!
7.8.1 REPLACEMENT OF REAR WHEEL ONLY
1
Lift the sanding drum off the floor by turning the lowering
lever at the handle upwards (Fig. 93).
2
Switch off the machine and pull the power plug out of the
socket!
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Fig. 94
Fig. 95
Fig. 96
48
Pull the power plug out of the socket! Tilt the
machine forward over the bracket.
Ensure that the machine is standing securely!
Remove the screw with the washers and nut in the
centre of the wheel and take off the back wheel.
Assemble in reverse sequence.
3
Tilt the machine forward over the bracket (Fig. 94). Ensure
that the machine is standing securely (Fig. 95)!
4
Release the screw in the centre of the wheel and remove
the screw, washers and nut (Fig. 96). Ensure that you do not
lose the nut.
5
Pull the back wheel off the tail axle housing.
6
Push the new back wheel onto the tail axle housing.
7
Insert the nut in the hexagonal recess of the tail housing and
hold onto the nut. Mount the washers and the screw.
7.8.2 REPLACEMENT OF COMPLETE REAR WHEEL ASSEMBLY
1
Lift the sanding drum off the floor by turning the lowering
lever at the handle upwards (Fig. 93).
2
Switch off the machine and pull the power plug out of the
socket!
3
Tilt the machine forward over the bracket (Fig. 94). Ensure
that the machine is standing securely (Fig. 95)!
4
Release the screw which fastens the tail axle of the rear
wheel in the machine housing (Fig. 97).
5
Pull the complete rear wheel assembly out of the machine
housing (Fig. 97).
6
Mount the complete new back wheel in reverse sequence
and fasten it again in the machine housing, aligning the
clamping surface of the tail axle towards the screw (Fig. 97).
Fig. 97
Release the screw and pull the complete rear
wheel assembly out of the machine housing.
When mounting, align the clamping surface of the
tail axle towards the screw.
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7.9 REPLACEMENT OF LATERAL WHEELS
Use exclusively original LÄGLER® lateral wheels (part number in
Section 11, Spare parts)!
ATTENTION!
For a good sanding result the lateral wheels must always be
exchanged in pairs!
1
Lift the sanding drum off the floor by turning the lowering
lever at the handle upwards (Fig. 93).
2
Switch off the machine and pull the power plug out of the
socket!
3
Tilt the machine backwards over the safety guards (Fig. 98).
Ensure that the machine is standing securely!
4
Release the screw in the centre of the wheel and remove
the screw and washers (Fig. 99). Before removing the left
lateral wheel open the belt guard (Fig. 101).
5
Pull the wheel off the wheel lever.
6
Push the new wheel onto the wheel lever.
7
Mount the washers and the screw.
8
Tighten the screw again.
9
Close the belt guard (Fig. 100).
NOTE:
Fig. 98
Tilt the machine backwards. Ensure that the
machine is standing securely!
Fig. 99
Remove the screw and washers in the centre of
the wheel and remove the lateral wheel. Assemble
the new wheel in reverse sequence.
Fig. 100 Close the belt guard.
As it is so easy and quick to exchange the lateral wheels and
the back wheel, it is advisable to use a second set of wheels
when performing rough work.
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7.10 REPLACEMENT AND TENSIONING OF
V-BELTS
7.10.1 REPLACEMENT OF V-BELTS
Use exclusively original LÄGLER® V-belts (part number in Section 11, Spare parts)!
1
Lift the sanding drum off the floor by turning the lowering
lever at the handle upwards (Fig. 93).
2
Switch off the machine and pull the power plug out of the
socket!
3
Open the belt guard (Fig. 101).
4
Loosen the two motor nuts at the motor bearing bracket
(Fig. 102).
5
Release the tension of the V-belts by turning the eye bolt at
the motor counterclockwise (Fig. 103).
6
Open the clamping screw of the belt tensioner for the suction
V-belt (Fig. 104, 1)
7
Turn the belt tensioner clockwise to release the tension of
the suction V-belt (Fig. 104, 2).
Fig. 101 Pull the power plug out of the socket and open
the belt guard.
Fig. 102 Loosen the two motor nuts.
CAUTION!
Fig. 103 Release the tension of the V-belts by turning the
eye bolt at the motor counterclockwise.
RISK OF INJURY:
During dismantling and mounting the V-belts, take care of
your fingers
danger of crushing!
Fig. 104 Open the clamping screw of the belt tensioner (1)
and release the tension of the suction V-belt (2).
50
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8
Turn the motor pulley and allow the suction V-belt to run off
the motor pulley (Fig. 105).
9
Turn the lower pulley and allow the drive V-belt to run off the
lower pulley (Fig. 106).
If necessary, use the box wrench (see tool kit) to turn the
lower pulley exclusively clockwise!
ATTENTION!
Only turn the nut with the box wrench at the lower pulley
clockwise, as otherwise the nut will work loose (left-hand
thread)!
10
Mount the new V-belts and tension them (
Tensioning of V-belts).
Fig. 105 Remove the suction V-belt.
Section 7.10.2,
7.10.2 TENSIONING OF V-BELTS
In case to retension the V-belts only, point 1 to 4 in Section 7.10.1,
Replacement of V-belts must be done first. Only then proceed as
follows.
1
Open the clamping screw of the belt tensioner for the suction
V-belt (Fig. 104, 1).
2
Turn the belt tensioner clockwise to release the tension of
the suction V-belt (Fig. 104, 2).
3
Loosen the two nuts at the eye bolt at the motor (Fig. 107)
and turn them upwards.
4
Tension the drive V-belt for the sanding drum by turning the
eye bolt at the motor clockwise (Fig. 108, 1).
Fig. 106 Allow the drive V-belt to run off the lower pulley.
If necessary, use the box wrench (see tool kit) to
help you. Turn the pulley exclusively clockwise
in order not to loosen the nut!
Fig. 107 Loosen the two nuts at the eye bolt at the motor.
Correct tension of the drive V-belt:
The slack on the V-belt should be approx. 1 cm (0.4“) if compressed with normal effort (Fig. 108, 2).
Fig. 108 Tension the drive V-belt by turning the eye bolt at
the motor clockwise (1).
Correct tension of the drive V-belt:
The V-belt should be compressed approx. 1 cm
(0.4“) (2).
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5
First tighten the lower nut (Fig. 109, 1), then the upper nut
(Fig. 109, 2) at the eye bolt at the motor.
ATTENTION!
Orient the belt tensioner to the fan pulley! Move the belt
tensioner accordingly (Fig. 110)! A wrong orientation from belt
tensioner to fan pulley (Fig. 111, A or B) increase the wearing
of fan axle, pulleys and V-belt extensive! Then these parts
must be replaced significant more often!
Fig. 109 First tighten the lower nut (1), then the upper
nut (2) at the eye bolt at the motor.
6
Turn the belt tensioner counterclockwise to tension the
suction V-belt (Fig. 112, 1). Keep the belt tensioner in position
and tighten the clamping screw at the belt tensioner carefully
at the same time (Fig. 112, 2).
Correct tension of the suction V-belt:
The slack on the V-belt should be approx. 1 cm (0.4“) if
compressed with normal effort (Fig. 113).
7
Tighten the two motor nuts (Fig. 114).
Fig. 110 Orient the belt tensioner to the fan pulley! Move
the belt tensioner accordingly.
Fig. 111 Avoid position A and B of the belt tensioner!
Otherwise the wearing of fan axle, pulleys and
V-belt increase extensive!
Fig. 112 Tension the suction V-belt by turning the belt
tensioner counterclockwise (1 and 2).
Fig. 113 Correct tension of the suction V-belt:
The V-belt should be compressed approx. 1 cm
(0.4“).
Fig. 114 Tighten the two motor nuts.
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8
Close the belt guard (Fig. 115).
ATTENTION!
•
Never tension the V-belts excessively! This can cause
damage to the V-belts and ball bearings!
•
Check the tension of the V-belts after a while! Retension
the V-belts if necessary!
Fig. 115 Close the belt guard.
HUMMEL® 01.08.2014
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53
8
REGULAR MAINTENANCE AND TESTING
Regular maintenance and testing
in accordance with
accident prevention regulations
WARNING!
Tests and testing intervals must comply
with and be performed in accordance
with the applicable regulations and legal
requirements in your country!
The electrical operating equipment and machine parts must be
inspected at least once a year by a qualified electrician with respect
to electrical and mechanical safety, then be repaired as required.
Afterwards, the operational safety must be confirmed by the attachment of an inspection label on the machine (Fig. 116).
The elements required for the dust suction system must be checked
at least once per year by a qualified expert and repaired as required.
The functional efficiency must also be confirmed.
Ensure that only original LÄGLER® spare parts are used for maintenance work! You should only allow the customer service work to be
conducted by LÄGLER® or an authorized LÄGLER® service centre!
The service passport in these operating instructions (Section 12)
documents when and where your machine was serviced.
Fig. 116 The inspection label on the belt guard confirms the
electrical and mechanical safety of the machine.
Enter the serial number and the year of manufacture of your
machine (please see the type plate) on the back cover of these
operating instructions! If you do not do this, your service passport
is invalid!
Make sure that the maintenance tasks in the service passport are
confirmed by filling in a corresponding field with the date, stamp
and signature.
REGULATIONS VALID IN GERMANY
WARNING!
In order to ensure the safety of the machines and equipment (= working equipment), the German Ordinance on Industrial
Safety and Health (BetrSichV) must be
complied with in Germany!
54
The German Ordinance on Industrial Safety and Health (BetrSichV)
requires every employer to define the testing intervals on the work
equipment they provide according to a risk analysis and to document all of this.
HUMMEL® 01.08.2014
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8
REGULAR MAINTENANCE AND TESTING
EXCERPT FROM THE BGV A3
NOTE:
§ 5 Inspections
(1) The employer must ensure that the proper condition of the
electrical systems and equipment is inspected
1. before using the equipment for the first time and after an
alteration or repair before being used again by an electrician
or under the supervision of an electrician and
2. at regular intervals.
The intervals are to be calculated in such a manner that defects
which must be handled are detected in a timely manner.
(2) The electrical engineering regulations relevant to the inspection are to be followed.
(3) Upon request by the professional association, an inspection
log with specific entries is to be maintained.
(4) The inspection before the first commissioning as per paragraph
1 is not required if the employer receives confirmation from
the manufacturer or installer that the electrical systems and
equipment have been correspondingly procured in accordance
with these accident prevention guidelines.
•
All LÄGLER® machines and electrical
equipment are subjected to an
electrical inspection as well as a
thorough visual and functional test
before they leave the factory.
•
A recurring inspection of the machines
and electrical equipment must be
conducted in Germany at certain
intervals.
•
LÄGLER ® recommends using the
guidelines of BGV A3 for inspections
and inspection intervals.
•
You can, of course, arrange for repairs
and recurring inspections of LÄGLER®
machines to be conducted by the
LÄGLER® service department.
Table 1B: Recurring inspections of portable electrical equipment:
Systems/equipment (which are to be inspected)
• portable electrical equipment (insofar as is used)
• extension and device connection cables with plugs
• connection cables with plugs
• movable cables with plugs and fixed connections
Inspection interval
Every 6 months as a reference value, 3 months on construction
sites*).
If an error rate of less than 2% is reached during the inspection,
the inspection interval can be extended to a maximum of 1 year
(valid for machines on construction sites, in production facilities
and workshops).
*) See the BG information “Selection and Operation of Electrical Systems and
Equipment on Construction Sites” (BGI 608) for more details.
Type of inspection
The proper condition of the machines and equipment must be
inspected.
Inspector
Electricians or persons trained in electrical engineering when using
suitable measurement and inspection devices.
HUMMEL® 01.08.2014
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55
9
CAUSES OF FAULTS
Causes of faults
WARNING!
This section shows you how to remedy possible malfunctions. If
none of the measures listed here are successful, please contact
our service department, your retailer or your importer.
RISK OF DEATH from electrical shock:
Work on the electrical equipment is to
be conducted exclusively by a qualified electrician! The machine must be
switched off and the power plug removed
from the socket during this work!
The circuit diagram valid for your machine is located in the motor switch box!
9.1 THE MACHINE DOES NOT RUN OR HAS
SWITCHED OFF AUTOMATICALLY
•
The machine is not connected to the electrical network.
Check the following items:
- Is the motor cable connected to the extension cable?
- Is the extension cable inserted into the power socket?
•
The power socket is not properly connected. This error must
be corrected by an expert.
•
The electrical safety device of the electrical network interrupted the electrical circuit, e.g. because
- too many electricity consumers are connected to the same
electrical circuit,
- improper electrical installation.
The causes for the error must be repaired by an expert.
•
The electrical network is not providing sufficient voltage
(undervoltage). Use a transformer if necessary (e.g. LÄGLER®
part number 708.00.00.100 for 230 volts).
•
The temperature switch in the motor has switched off the
machine because
- the power cables have a total length of more than 20 m
(790”),
- the power cables have wire cross-sections which are too
small:
at mains voltage 220 V or 230 V are the wire cross-sections
smaller than 2.5 mm² (0.0039 sq.in.),
at mains voltage 400 V are the wire cross-sections smaller
than 1.5 mm² (0.0023 sq.in.),
- or too much pressure was applied to the sanding drum
while sanding.
The motor must cool off and the causes for the problems
named above must be remedied.
•
An electrical component of the machine (e.g. capacitors,
contactor, cable, switch) is defective and must be inspected
by a qualified electrician and replaced if necessary.
RISK OF INJURY due to unsuitable parts:
Make sure that only original LÄGLER®
spare parts and original LÄGLER® accessories are used!
56
HUMMEL® 01.08.2014
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9
CAUSES OF FAULTS
9.2 THE MACHINE ATTEMPTS TO START UP BUT
IS NOT ABLE TO DO SO
•
At low temperatures: The machine is too cold and must be
heated up to room temperature in a warm room.
•
Cables which are too long or too thin are used for the electrical connection:
- The power cables have a total length of more than 20 m
(790”).
- The power cables have wire cross-sections which are too
small:
at mains voltage 220 V or 230 V are the wire cross-sections
smaller than 2.5 mm² (0.0039 sq.in.),
at mains voltage 400 V are the wire cross-sections smaller
than 1.5 mm² (0.0023 sq.in.).
This causes of faults lead to a loss of power and are not allowed for safety reasons!
•
The electrical network is not providing sufficient voltage
(undervoltage). Use a transformer if necessary (e.g. LÄGLER®
part number 708.00.00.100 for 230 volts).
•
The V-belts are too tight and must be loosened.
Section 7.10, Replacement and tensioning of V-belts
9.3 THE MACHINE RUNS BUT HAS NO OR VERY
LITTLE SANDING POWER CAPACITY
•
The sanding medium is incorrect or dull and must be replaced.
Section 5.3, Changing the sanding belt
•
At low temperatures: The machine is too cold and must be
heated up to room temperature in a warm room.
•
Cables which are too long or too thin are used for the electrical connection:
- The power cables have a total length of more than 20 m
(790”).
- The power cables have wire cross-sections which are too
small:
at mains voltage 220 V or 230 V are the wire cross-sections
smaller than 2.5 mm² (0.0039 sq.in.),
at mains voltage 400 V are the wire cross-sections smaller
than 1.5 mm² (0.0023 sq.in.).
This causes of faults lead to a loss of power and are not allowed for safety reasons!
HUMMEL® 01.08.2014
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57
9
CAUSES OF FAULTS
•
The electrical network is not providing sufficient voltage
(undervoltage). Use a transformer if necessary (e.g. LÄGLER®
part number 708.00.00.100 for 230 volts).
•
The V-belts are not tight enough and must be tightened a bit.
Section 7.10, Replacement and tensioning of V-belts
•
The sanding pressure do not suit to the grit grade of the
sanding belt and must be corrected.
Section 5.2, Regulating the sanding drum pressure
9.4 THE MACHINE VIBRATES INTENSELY AND
RUNS NOISILY
•
The sanding medium does not have the proper tension. The
tension must be corrected.
Section 5.3, Changing the sanding belt
•
The sanding medium is damaged or incorrect and must be
replaced.
Section 5.3, Changing the sanding belt
•
The sanding belt tracking is incorrect and must be adjusted.
Section 7.3, Checking and setting the sanding belt
tracking
•
The sanding drum is dirty or damaged and must be replaced.
Section 7.6, Replacement of sanding drum
•
The tensioning roller of the drive unit is dirty, damaged or
worn-out and must be replaced.
Section 7.7, Replacement of tensioning roller
•
A V-belt is dirty, damaged or worn-out and must be replaced.
Section 7.10, Replacement and tensioning of V-belts
•
A pulley is dirty, damaged or worn-out and must be cleaned
or replaced.
•
There are clogged materials and deposits in the machine
that must be removed.
9.5 THE MACHINE RUNS BUT CREATES A GREAT
DEAL OF DUST
58
•
The dust bag is more than one third full and must be emptied.
Section 5.4, Emptying the dust bag
•
The dust bag is not correctly attached or is damaged and
must be replaced.
Section 4.1, Preparing the machine for operation
HUMMEL® 01.08.2014
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9
CAUSES OF FAULTS
•
The sealing felt at the machine housing is damaged and must
be replaced.
Section 7.5, Checking the dust pick-up
•
There are clogged materials and deposits in the machine
that must be removed.
•
The suction V-belt is not tight enough and must be tightened
or damaged and must be replaced.
Section 7.10, Replacement and tensioning of V-belts
•
The side cover is not mounted at the machine and must be
mounted (
Fig. 18).
9.6 SANDING PROBLEMS (WAVES, STRIPS,
GROOVES)
•
The floor was not vacuumed before sanding. The floor must
be vacuumed thoroughly always directly before each sanding
step.
•
The sanding drum was not lifted from the floor while the
machine was switched on or off. Always lift the sanding
drum off the floor before switching on or off the machine.
Section 4.3, Switching on the machine
Section 4.4, Switching off the machine
•
The sanding medium does not have the proper tension. The
tension must be corrected.
Section 5.3, Changing the sanding belt
•
The sanding medium is damaged or incorrect and must be
replaced.
Section 5.3, Changing the sanding belt
•
The sanding pressure do not suit to the grit grade of the
sanding belt and must be corrected.
Section 5.2, Regulating the sanding drum pressure
•
The machine setting is incorrect and must be adjusted. The
sanding drum must sands centrally.
Section 7.4, Checking the machine setting
•
The sanding drum is dirty, damaged or worn-out and must
be replaced.
Section 7.6, Replacement of sanding drum
•
The tensioning roller of the drive unit is dirty, damaged or
worn-out and must be replaced.
Section 7.7, Replacement of tensioning roller
HUMMEL® 01.08.2014
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9
CAUSES OF FAULTS
60
•
The wheels are dirty or damaged and must be cleaned or
replaced.
Section 7.8, Replacement of rear wheel
Section 7.9, Replacement of lateral wheels
•
A V-belt is dirty, damaged or worn-out and must be replaced.
Section 7.10, Replacement and tensioning of V-belts
•
A pulley is dirty, damaged or worn-out and must be cleaned
or replaced.
•
The lowering rod linkage is running poorly, catching on
something or getting stuck. Free movement is necessary.
•
The machine is being moved too slowly and must be sped
up.
•
Too much pressure is placed on the sanding drum while
sanding.
The following causes must be eliminated:
- additional weight is on the machine,
- the rear part of the machine is lifted on with the handle
while sanding,
- the lowering lever at the handle is pressed downwards
while sanding.
HUMMEL® 01.08.2014
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10
2
start
1
operation
N
PE L1
stop
Mains supply: 230 V / 50 CPS
Fuse protection of mains supply:
at least 16 A
test
CIRCUIT DIAGRAMS
1
2
3
4
selector switch
L1
S1
K1M
R
6
01
5
1
22
C1
N
N
02
4
2
K1M
3
11
A
A
4
R1
3
8.6
kW
K1M 2
1
CB
40 mF
CA = starting capacitor
CB = running capacitor
CA
Ha = main winding
Hi = auxiliary winding
60 mF
temperature
switch
Hi
R1 = resistor
K1M = contactor
Ha
K1M A2
Hi
operation
Ha
A1
1~
M1
motor 2.2 kW
230 V / 50 CPS
HUMMEL® + ELF: single-phase AC motor
EUGEN LÄGLER GMBH
Kappelrain 2
D-74363 Güglingen-Frauenzimmern
Phone: 0049 - 7135 - 98 90 - 0
Fax: 0049 - 7135 - 98 90 - 98
02.03.1999
2.2 kW / 230 V / 50 CPS
e-mail: info@laegler.com
Internet: http://www.laegler.com
The circuit diagram valid for your machine is located in the motor switch box.
HUMMEL® 01.08.2014
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61
10
2
start
1
operation
N
PE L1
stop
Mains supply: 220 + 230 V / 60 CPS
Fuse protection of mains supply:
at least 20 A
test
CIRCUIT DIAGRAMS
1
2
3
4
selector switch
L1
S1
K1M
R
6
01
5
1
22
C1
fuse
6.2 A
N
N
02
4
2
K1M
3
11
A
A
4
R1
3
8.6
kW
K1M 2
fuse
6.2 A
CB
40 mF
1
CA = starting capacitor
CB = running capacitor
CA
Ha = main winding
Hi = auxiliary winding
60 mF
temperature
switch
Hi
R1 = resistor
K1M = contactor
Ha
K1M A2
Hi
operation
Ha
A1
1~
M1
motor 2.2 kW
220 + 230 V / 60 CPS
HUMMEL® + ELF: single-phase AC motor
EUGEN LÄGLER GMBH
Kappelrain 2
D-74363 Güglingen-Frauenzimmern
Phone: 0049 - 7135 - 98 90 - 0
Fax: 0049 - 7135 - 98 90 - 98
17.12.2009
2.2 kW / 220 V / 60 CPS
2.2 kW / 230 V / 60 CPS
e-mail: info@laegler.com
Internet: http://www.laegler.com
The circuit diagram valid for your machine is located in the motor switch box.
62
HUMMEL® 01.08.2014
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10
2
start
1
operation
N
PE L1
stop
Mains supply: 220 V / 60 CPS
Fuse protection of mains supply:
at least 20 A
test
CIRCUIT DIAGRAMS
1
2
3
4
selector switch
L1
S1
K1M
R
6
01
5
1
22
C1
N
N
02
4
2
K1M
fuse
6.2 A
3
11
A
A
3
R1
4
8.6
kW
K1M 1
fuse
6.2 A
CB
40 mF
2
CA = starting capacitor
CB = running capacitor
CA
130 mF
Ha = main winding
Hi = auxiliary winding
S0
temperature
switch
Hi
S0 = emergency switch
R1 = resistor
K1M = contactor
Ha
K1M A2
Hi
operation
Ha
A1
1~
M1
motor 2.9 kW
220 V / 60 CPS
USA version
HUMMEL® + ELF: single-phase AC motor
EUGEN LÄGLER GMBH
Kappelrain 2
D-74363 Güglingen-Frauenzimmern
Phone: 0049 - 7135 - 98 90 - 0
Fax: 0049 - 7135 - 98 90 - 98
03.03.1999
2.9 kW / 220 V / 60 CPS
USA version
e-mail: info@laegler.com
Internet: http://www.laegler.com
The circuit diagram valid for your machine is located in the motor switch box.
HUMMEL® 01.08.2014
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63
11
SPARE PARTS
64
HUMMEL® 01.08.2014
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11
SPARE PARTS
Item
Part number
Description
4
11
21
22
23
24
25
26
27
28
29
30
31
33
36
37
38
39
40
41
42
43
44
45
46
47
49
50
51
52
53
54
55
56
59
0125.1008.000
0980.1008.000
0912.1008.025
100.50.00.100
6797.1008.000
0933.1008.016
000.01.40.001
100.50.04.105
7500.1005.012
100.01.05.105
100.58.00.200
100.01.00.100
000.20.45.083
0931.1008.075
100.33.01.100
0933.1008.022
100.33.02.100
7337.1005.033
100.01.01.100
100.01.02.100
9021.1005.000
0933.1006.014
0125.1006.000
100.60.00.200
100.60.01.100
0934.1006.000
100.60.02.200
0912.1006.030
000.43.10.252
7984.1008.016
100.44.00.100
100.44.01.100
100.01.03.100
100.01.08.200
100.01.30.100
Washer
Nut
Screw
Belt guard, complete
Washer
Screw
O-ring
Screw stud
Screw
Cover fastener
Belt tensioner, complete
Housing
Wing nut
Screw
Bracket
Screw
Grip
Rivet
Bumper felt
Sealing felt
Washer
Screw
Washer
Wall-protecting roller with holder
Holder for wall-protecting roller
Nut
Wall-protecting roller
Screw
Plastic bushing
Screw
Safety guard, complete
PVC tube
Side cover
Collar nut, complete
Guide roller, complete
HUMMEL® 01.08.2014
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11
SPARE PARTS
66
HUMMEL® 01.08.2014
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11
SPARE PARTS
Item
Part number
Description
1
3
4
5
6
7
10
11
12
13
15
100.00.80.105
000.17.21.081
0125.1008.000
000.20.56.351
100.20.18.200
0471.0015.000
0580.1008.000
0980.1008.000
00.000.41.002
100.20.26.100
100.20.01.200
102.20.01.200
100.20.00.200
102.20.00.200
100.21.00.200
100.20.24.100
100.20.23.200
000.20.31.351
0988.0015.005
0914.0008.012
100.20.17.200
000.17.20.081
Dust bag HUMMEL®
Fixing cap
Washer
Ball knob
Lever
Circlip
Thread eye
Nut
Strain relief ring
Cable support, complete
Guide tube
Guide tube USA
Guide tube, complete
Guide tube USA, complete
Guide tube long, complete
Upper rod, complete
Adjusting ring, complete
Handle
Washer
Grub screw
Axle for handle
Quick-fixing-fastener
16
62
65
66
67
68
69
HUMMEL® 01.08.2014
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67
11
SPARE PARTS
68
HUMMEL® 01.08.2014
English / Englisch
11
SPARE PARTS
Item
Part number
Description
1
2
3
4
5
6
7
8
13
14
16
17
18
19
20
21
22
23
24
25
26
27
34
40
41
42
43
45
46
47
48
0965.1006.870
100.08.01.200
100.08.00.100
100.10.00.200
100.14.00.100
0933.1008.022
6797.1008.000
0912.1008.018
000.20.46.062
0125.1006.000
100.04.09.100
000.17.20.081
100.04.01.200
100.04.25.100
100.04.06.200
7500.1005.012
100.04.02.100
100.05.00.200
0931.1008.050
100.04.00.100
0125.1008.000
6330.1008.000
000.50.12.061
100.05.04.200
100.05.29.100
000.10.10.085
7984.1008.012
100.18.00.300
0934.1008.000
100.18.18.300
100.18.29.105
100.18.09.200
0912.1008.040
0914.0008.012
Screw
Sealing ring
Fan housing
Fan insert, complete
Intake duct
Screw
Washer
Screw
Wing screw
Washer
Lower rod, complete
Quick-fixing-fastener
Pivot pin
Spring with screw, complete
Notch plate
Screw
Spring tensioner, complete
Lateral wheel, complete
Screw
Lifting fixture
Washer
Nut
Nut
Wheel arm
Lateral wheel
Washer
Screw
Rear wheel, complete
Nut
Tail axle housing, complete
Rear wheel (from year of manufacture 2002)
Rear wheel (up to year of manufacture 2001)
Screw
Grub screw
49
50
HUMMEL® 01.08.2014
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69
11
SPARE PARTS
up to May 2000
from May 2000
Please state the machine number with
each order!
70
HUMMEL® 01.08.2014
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11
SPARE PARTS
Item
Part number
Description
1
2
3
4
5
6
7
8
9
10
12
13
14
15
16
18
19
20
21
22
23
24
25
26
28
29
30
32
34
35
36
100.45.00.100
0912.1006.050
100.45.12.105
000.31.13.021
100.45.01.105
0980.1006.000
0125.1008.000
0912.1008.018
100.45.81.105
000.61.10.363
100.45.20.100
100.45.24.105
0988.0018.005
0471.0018.000
000.20.32.104
100.45.17.100
0931.1008.060
0980.1008.000
100.45.61.205
100.45.37.100
100.02.05.100
100.36.00.100
0472.0047.000
6005.0025.205
6885.0606.018
100.02.01.100
6885.0606.040
100.02.04.105
100.02.03.105
000.11.35.102
120.40.00.100
120.41.00.100
100.02.06.100
100.45.45.100
0472.0052.000
6205.0025.205
6885.0606.010
100.02.01.200
6885.0606.025
100.02.03.200
000.11.40.102
0988.0025.010
Drive unit, complete
Screw
Tensioning roller
Pressure spring
Guide roller
Nut
Washer
Screw
Collar
Cable tie
Crank
Bearing bush
Washer
Circlip
Operating lever
Clip
Screw
Nut
Screw
Double arm, complete
Nut, right-hand thread
V-belt pulley
Circlip
Ball bearing
Parallel key
Sanding shaft
Parallel key
Spacer ring
Slide ring
Shaft seal
Sanding drum HUMMEL®
Sanding drum HUMMEL®, hard rubber cover
Nut, left-hand thread
Pressure spring
Circlip
Ball bearing
Parallel key
Sanding shaft
Parallel key
Spacer ring
Shaft seal
Washer
37
46
60
61
62
63
64
65
66
67
HUMMEL® 01.08.2014
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71
11
SPARE PARTS
72
HUMMEL® 01.08.2014
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11
SPARE PARTS
Item
1
2
3
4
5
6
7
9
10
11
12
13
14
16
17
18
19
20
21
22
23
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Part number
100.65.00.100
101.65.00.100
102.65.00.100
105.65.00.100
000.70.17.092
000.70.10.067
0912.1008.020
0127.1008.000
100.65.29.200
0933.1008.020
100.65.30.100
100.65.25.100
100.65.09.100
7500.1005.006
0471.0030.000
100.65.08.105
6885.0807.020
6885.0606.025
100.65.06.100
000.10.10.061
0912.1006.014
100.65.80.205
100.65.35.100
0933.1008.022
100.65.75.100
000.65.43.251
102.65.75.100
000.65.43.257
105.65.75.100
000.65.45.151
100.65.40.200
102.65.40.200
000.65.10.041
000.65.62.211
000.65.60.253
000.65.60.401
000.65.10.061
000.65.10.131
000.65.20.035
000.65.20.032
102.65.60.200
000.65.62.221
000.65.25.020
000.65.20.220
100.65.14.105
000.65.12.091
000.68.60.207
000.68.60.163
100.65.47.100
HUMMEL® 01.08.2014
English / Englisch
Description
Motor, 230 V / 50 CPS / 2.2 kW
Motor, 230 V / 60 CPS / 2.2 kW
Motor, 220 V / 60 CPS / 2.9 kW, USA
Motor, 400 V / 50 CPS / 4.0 kW, three-phase current
V-belt
V-belt
Screw
Spring washer
Motor bearing bracket
Screw
Motor nut
Motor mounting
Fan cover
Screw
Circlip
Fan wheel
Parallel key
Parallel key
Motor pulley
Washer
Screw
Eye bolt
Motor tensioner
Screw
Motor cable 3 x 2.5 mm² (from year of manufacture 2008)
Motor cable 3 x 2.5 mm² (up to year of manufacture 2007)
Motor cable 3 x 2.5 mm², USA (from year of manufacture 2008)
Motor cable 3 x 2.5 mm², USA (up to year of manufacture 2007)
Motor cable 5 x 1.5 mm² for three-phase AC motor (from year of manufacture 2008)
Motor cable 5 x 1.5 mm² for three-phase AC motor (up to year of manufacture 2007)
Switch box for 230 V / 50 CPS
Switch box for 220-230 V / 60 CPS + three-phase current
Running capacitor 40 µF
Switch button
Switch
Switch for three-phase AC motor
Starting capacitor 60 µF
Starting capacitor 130 µF, USA
Contactor
Contactor complete for three-phase AC motor
Emergency switch USA, complete
Red button for emergency switch USA
Lamp red for three-phase AC motor
Relay for three-phase AC motor
Sealing plate
Discharging resistor
Nut (from year of manufacture 2008)
Nut (up to year of manufacture 2007)
Cover with seal
73
11
SPARE PARTS
74
HUMMEL® 01.08.2014
English / Englisch
11
SPARE PARTS
Item
Part number
Description
2
3
000.01.40.110
000.65.53.251
000.65.53.252
000.65.55.151
000.01.20.010
000.01.50.010
000.95.21.103
000.95.11.171
000.93.11.061
000.93.11.051
000.93.11.041
100.00.50.100
100.00.45.105
000.01.30.011
100.98.00.100
720.00.00.200
000.01.10.011
000.01.10.021
000.01.65.020
100.00.55.100
701.10.00.100
702.00.00.200
703.00.00.200
720.10.00.200
720.05.00.205
000.10.42.240
900.02.45.105
900.02.47.105
000.10.42.241
000.10.42.243
000.91.30.151
MultiClip
Extension cable 3 x 2.5 mm², 10 m long
Extension cable 3 x 2.5 mm², 20 m long
Extension cable 5 x 1.5 mm², 10 m long, for three-phase AC motor
Respiratory protection mask P3
Safety belt
Closed mouth wrench 10/13 mm
Open mouth wrench 17 mm
Hexagonal socket screw wrench 6 mm
Hexagonal socket screw wrench 5 mm
Hexagonal socket screw wrench 4 mm
Setting fixture
Box wrench
Tool bag, empty
Tool bag, complete
Trolley TRANSCART, complete
Foldable earmuff type MUSIMUFF with FM radio
Foldable earmuff type POCKET
Safety switch PRCD-S (for German mains supply)
Carrying handle HUMMEL®
Impact tool
Parquet layer tool ZUGEISEN, small
Parquet layer tool ZUGEISEN, broad
Accessories TRANSCART
Wheel TRANSCART
Milling drum 200 mm width, complete with accessories
Carbide tool (10 pcs. per box)
Screw for blade
Milling drum with carbide blades
Cutting depth adjustment, complete
Torx screwdriver T15
4
5
6
7
8
9
10
11
12
13
20
21
22
23
24
25
26
27
30
31
40
41
42
43
44
45
HUMMEL® 01.08.2014
English / Englisch
75
NOTES
76
HUMMEL® 01.08.2014
English / Englisch
NOTES
HUMMEL® 01.08.2014
English / Englisch
77
NOTES
78
HUMMEL® 01.08.2014
English / Englisch
12
SERVICE PASSPORT
Service passport
Please enter the serial number and the year of manufacture of your machine (see type plate) on the rear side of
these operating instructions! Otherwise the service passport will not be valid!
This service passport is a document. Make sure that all the tests and maintenance work carried out on the machine
are confirmed by the servicing company here.
Date of test and
maintenance work:
Date of test and
maintenance work:
Date of test and
maintenance work:
Signature and company stamp
Signature and company stamp
Signature and company stamp
Date of test and
maintenance work:
Date of test and
maintenance work:
Date of test and
maintenance work:
Signature and company stamp
Signature and company stamp
Signature and company stamp
Date of test and
maintenance work:
Date of test and
maintenance work:
Date of test and
maintenance work:
Signature and company stamp
Signature and company stamp
Signature and company stamp
Date of test and
maintenance work:
Date of test and
maintenance work:
Date of test and
maintenance work:
Signature and company stamp
Signature and company stamp
Signature and company stamp
Date of test and
maintenance work:
Date of test and
maintenance work:
Date of test and
maintenance work:
Signature and company stamp
Signature and company stamp
Signature and company stamp
HUMMEL® 01.08.2014
English / Englisch
79
13
EU DECLARATION OF CONFORMITY
EU Declaration of conformity for machines
(EU Directive 2006/42/EC)
Copyright © Eugen Lägler GmbH, 2014 – All rights reserved – Translation of original operating instructions HUMMEL® – 11 / 01.08.2014 – Printed on chlorine-free bleached paper. Part number 00.100.20.002
No guarantee is provided for the contents of these operating instructions. No liability is assumed for errors or damages which arise from the use of these operating instructions. Subject to changes.
The manufacturer
Eugen Lägler GmbH, Kappelrain 2, D-74363 Güglingen-Frauenzimmern, Germany
Tel.: 0049 - 7135 - 98 90-0 · Fax: 0049 - 7135 - 98 90-98
E-Mail: info@laegler.com · http://www.laegler.com
certified herewith, that the machine Generic denomination:
Function:
Model:
Serial number:
Commercial name:
Floor sanding machine
Dry sanding of wooden floors
HUMMEL®
See type plate
Belt sanding machine
fulfils all the relevant provisions of the specified above European Directive.
The machine also fulfils all the relevant provisions of the European Directive
Electromagnetic compatibility (2004/108/EG).
The following harmonized standards have been applied:
DIN EN ISO 12100: Safety of machinery - General principles for design - Risk assessment and risk reduction
DIN EN 60204-1: Safety of machinery - Electrical equipment of machines - Part 1
DIN EN 55014-1: Electromagnetic compatibility - Requirements for household appliances, electric tools and similar
apparatus - Part 1
DIN EN 55014-2: Electromagnetic compatibility - Requirements for household appliances, electric tools and similar
apparatus - Part 2
DIN EN 61000-3-2: Electromagnetic compatibility (EMC) - Part 3-2: Limits
DIN EN 61000-3-3: Electromagnetic compatibility (EMC) - Part 3-3: Limits
Güglingen-Frauenzimmern, August 1, 2014
Volker Wörner, Development Department
Person Responsible for Documents
Eugen Lägler GmbH, Kappelrain 2
D-74363 Güglingen-Frauenzimmern
Germany
HUMMEL ®
80
Serial number:
www.laegler.com
Year of manufacture:
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