Holzstar BTS 150 User manual

BTS 150
Operating Instruction
Belt and Disc sander
BTS 150
BTS 250

2BTS-Series | Version 3.06
Imprint
Product identification
Belt and disc sander Item number
BTS 150 5904150
BTS 250 5904250
Manufacturer
Stürmer Maschinen GmbH
Dr.-Robert-Pfleger-Str. 26
D-96103 Hallstadt
Fax: [phone]
E-Mail: [email protected]
Internet: www.holzstar.de
Indications regarding the operating instructions
Original Instruction
Edition: 04.03.2021
Version: 3.06
Language: English
Author: FL
Indications regarding the copyright
Copyright © 2021 Stürmer Maschinen GmbH, Hallstadt,
Germany.
The contents of these operating instructions is the sole
property of the company Stürmer Maschinen GmbH.
Passing on as well as copying of this document, the use
and distribution of its content are prohibited if not explic-
itly permitted. Contraventions are liable to compensa-
tion.
Subject to technical modifications and error.
Contents
1 Introduction ............................................. 3
1.1 Copyright ............................................................ 3
1.2 Customer service................................................ 3
1.3 Limitation of liability............................................. 3
2 Safety ....................................................... 3
2.1 Symbol explanation ............................................ 3
2.2 Obligations of the operating company ................ 4
2.3 Qualification of personnel ................................... 5
2.4 Personal protective equipment ........................... 5
2.5 Safety signs on the Machine............................... 6
2.6 Regulations for safety and accident prevention.. 6
3 Intended Use ........................................... 6
4 Technical Data ....................................... 7
4.1 Type plate........................................................... 7
5 Transport, packaging, storage............... 7
5.1 Delivery and transport......................................... 7
5.2 Packaging ........................................................... 8
5.3 Storage ............................................................... 8
6 Scope of delivery and Accessories ...... 8
6.1 Scope of delivery ................................................ 8
6.2 Accessories ........................................................ 8
7 Description of the device ....................... 9
8 Assembly ................................................. 9
8.1 Safety stop.......................................................... 9
8.2 Working table.................................................... 10
9 Settings .................................................. 10
9.1 Pivoting worktable............................................. 10
9.2 Align the working table...................................... 10
9.3 Vertical grinding................................................ 11
9.4 Worktable in vertical grinding position .............. 11
9.5 Grinding wheel change ..................................... 11
9.6 Belt change....................................................... 11
9.7 Sanding belt barrel............................................ 12
10 Operation of the machine................... 12
10.1 Surface grinding on the sanding belt ............. 12
10.2 Edge grinding in vertical grinding position ..... 13
10.3 Grinding bent workpieces .............................. 13
10.4 Grinding round parts on the grinding wheel... 13
10.5 Grinding ends on the grinding wheel ............ 13
10.6 Connecting piece for extraction system......... 14
11 Notes for the grinding process.......... 14
12 Care, maintenance and repair............ 14
12.1 Cleaning......................................................... 14
12.2 Maintenance .................................................. 15
13 Troubleshooting.................................. 16
14 Disposal instructions / recycling
facilities................................................ 16
14.1 Decommission ............................................... 16
14.2 Disposal of new equipment packaging .......... 16
14.3 Disposal of electrical appliances.................... 17
14.4 Disposal of lubricants..................................... 17
14.5 Disposal via municipal collection points......... 17
15 Spare parts .......................................... 17
15.1 Ordering spare parts...................................... 17
16 Spare Parts Drawings ......................... 18
16.1 Spare Parts Drawing BTS 150....................... 18
16.2 Spare parts Drawing BTS 250 ....................... 19
17 EC-Declaration of Conformity............ 20

Introduction
BTS-Series | Version 3.06 3
1 Introduction
You have made a good choice by purchasing the Belt
and disc sander made by HOLZSTAR.
Thoroughly read the operating instructions before
commissioning the machine.
It informs you about the proper commissioning, the in-
tended use as well as the safe and efficient operation
and maintenance of the Belt and disc sander.
The operating instructions are part of the Belt and disc
sander. Always keep it at the place of use of the Belt and
disc sander. Furthermore, the local accident prevention
regulations and the general safety notes are applicable
for the field of application of the Belt and disc sander.
The illustrations in these operating instructions serve the
general comprehension and may deviate from the actual
type.
1.1 Copyright
The contents of these instructions are copyright. Their
application is admissible in the frame of the device. An
application beyond the described application is not allo-
wed without written approval of the manufacturer.For the
protection of our products, we shall register trademark,
patent and design rights, as this is possible in individual
cases. We strongly oppose any infringement of our intel-
lectual property
1.2 Customer service
Please contact your dealer if you have questions on the
machine or if you need technical advice. They will help
you with specialist information and expert advice.
Stürmer Maschinen GmbH
Dr.-Robert-Pfleger-Str. 26
D-96103 Hallstadt
Repair service:
Fax: [phone] - 55
E-Mail: [e-mail]
Spare part orders:
Fax: [phone]-119
E-Mail: [e-mail]
We are always interested in valuable experience and
knowledge gained from using the application, which then
could be shared and be valuable to develop our products
even further.
1.3 Limitation of liability
All information and notes in these operating instructions
were summarised taking the applicable standards and
rules, the state-of-the-art and our long-term knowledge
and experiences into consideration.
In the following cases the manufacturer is not liable for
damages:
- Non-observance of the operating instructions,
- Inappropriate use
- Use of untrained staff,
- Unauthorised modifications
- Technical changes,
- Use of not allowed spare parts.
The actual scope of delivery may deviate from the expla-
nations and presentations described here in case of spe-
cial models, when using additional ordering options or
due to latest technical modifications.
The obligations agreed in the delivery contract, the gen-
eral terms and conditions as well as the delivery conditi-
ons of the manufacturer and the legal regulations at the
time of the conclusion of the contract are applicable.
2 Safety
This paragraph will give you an overview of all important
safety packages for the protection of the people using it
well as for a safe and undisturbed operation. Other task-
based safety notes are included in the individual chap-
ters
2.1 Symbol explanation
Safety instructions
The safety notes in these operating instructions are high-
lighted by symbols. The safety notes are introduced by
signal words which express the concern of the risk.
DANGER!
This combination of symbol and signal words indi-
cates an imminently dangerous situation which may
lead to death or severe injuries if they are not avoided.
WARNING!
This combination of symbol and signal word indicates
a potentially dangerous situation that can lead to
death or serious injury if not avoided.

4BTS-Series | Version 3.06
Safety
Tips and recommendations
It is necessary to observe the safety notes quoted in
these operating instructions in order to reduce the risks
for personal injuries and damages to property.
2.2 Obligations of the operating com-
pany
The operating company is the person who operates the
machine for business or commercial reasons by herself,
or leaves it to a third party for use or application, and who
bears the legal product responsibility for the protection of
the user, the staff or for third parties.
Obligations of the operating company:
If the machine is used for commercial purposes, the op-
erating company must comply with the legal working
safety regulations. Therefore, the safety notes in this op-
erating manual, as well as the safety, accident preven-
tion and environment protection regulations applying for
the area of application of the machine must be met. The
following applies in particular:
- The operating company must be informed about
the applying industrial safety regulations and fur-
ther analyse hazards resulting from the special
working conditions at the place of use machine.
She must implement these in form of operating
manuals for the operation machine.
- During the entire lifetime of machine, the operating
company must verify whether the operating manu-
als prepared by her correspond to the current sta-
tus of the regulations, and must adapt these if nec-
essary.
- The operating company must unambiguously regu-
late and determine the responsibilities for installa-
tion, operation, troubleshooting, maintenance and
cleaning.
- The operating company must ensure that all per-
sons who work with machine, have read and un-
derstood this manual. Furthermore she must in-
struct the staff in regular intervals and inform them
about the hazards.
- The operator must provide the necessary protec-
tive equipment to the staff and order the use of the
necessary protective equipment in a binding way.
Furthermore the operating company is responsible to
keep the Machine always in a technically flawless state.
Thus, the following applies:
- The operator must ensure that the maintenance in-
tervals described in this manual are kept.
- The operator must have all safety devices checked
regularly for their good working order and their in-
tegrity.
CAUTION!
This combination of symbol and signal word indicates
a potentially dangerous situation that can result in
minor injury if it is not avoided.
ATTENTION!
This combination of symbol and signal words indi-
cates a possibly dangerous situation which may lead
to property and environmental damages if they are
not avoided.
NOTE!
This combination of symbol and signal words indi-
cates a possibly dangerous situation which may lead
to property and environmental damages if they are
not avoided.
Tips and recommendations
This symbol highlights useful tips and recommenda-
tions as well as information for an efficient and trou-
ble-free operation.

Safety
BTS-Series | Version 3.06 5
2.3 Qualification of personnel
The different tasks described in this manual represent
different requirements to the qualification of the persons
entrusted with these tasks.
Only persons reliable working procedures can be ex-
pected from, are allowed to perform all works. Persons
the responsiveness of which is affected by e. g. drugs,
alcohol or medication, are not allowed to work with the
machine.
The qualifications of the personnel for the different tasks
are mentioned below:
Operator:
The operator is instructed by the operating company
about the assigned tasks and possible risks in case of
improper behaviour. Any tasks which need to be perfor-
med beyond the operation in the standard mode must
only be performed by the operator if it is indicated in
these instructions and if the operating company expres-
sively commissioned the operator.
Electrical specialist:
Due to his professional training, knowledge and experi-
ence as well as his knowledge of respective standards
and regulations the electrical specialist is able to perform
works on the electrical system and to recognise and
avoid any possible dangers himself.
Specialist staff:
Due to their professional training, knowledge and experi-
ence as well as their knowledge of relevant regulations
the specialist staff is able to perform the assigned tasks
and to recognise and avoid any possible dangers them-
selves.
Manufacturer:
Certain works may only be performed by specialist per-
sonnel of the manufacturer. Other personnel is not au-
thorized to perform these works. Please contact our cus-
tomer service for the execution of all arising work..
2.4 Personal protective equipment
The personal protective equipment serves to protect per-
sons against impairments of safety and health while wor-
king. The staff has to wear personal protective equip-
ment while performing different works on and with grind-
ing system which are indicated in the individual paragra-
phs of these instructions.
The personal protective equipment is explained in the
following paragraph:
WARNING!
Danger in case of insufficient quali-
fication of the staff!!
Insufficiently qualified persons cannot estimate the
risks while using machine and expose themselves
and others to the danger of severe injuries.
- Have all works only performed by qualified persons.
- Keep insufficiently qualified persons and children
out of the working area.
Ear and head protection
The hearing protection protects the ears against
damages of hearing due to noise. The industrial hel-
met protects the head against falling objects and
bumping into fixed objects.
Eye protection
The protective goggles protect the eyes against parts
flying off and splashes of liquids.
Breathing protection
The breathing protection serves for protecting the
respiratory passages and the lung against the intake
of dust particles.
Protective gloves
The protective gloves serve to protect the hands
against sharp components as well as against friction,
abrasions or deep injuries.
Safety boots
The safety boots protect the feet against crushes, fal-
ling parts and slipping over on slippery underground.
Protective clothes
The protective clothes are tight clothes of little tensile
strength.

6BTS-Series | Version 3.06
Intended Use
2.5 Safety signs on the Machine
The following safety signs and notes are applied on the
grinding system (fig. 1), which need to be observed and
followed..
Fig. 1: Safety labels
Damaged or missing safety symbols at the machine may
lead to errors with personal and material damages. The
safety symbols which are applied on the machine must
not be removed. Damaged safety symbols must be re-
placed immediately.The machine must be put out of ope-
ration from the moment when the labels are unable to be
recognized and understood at first glance, until new la-
bels are attached.
2.6 Regulations for safety and accident
prevention
The following instructions are to be followed by the ope-
rating personnel.
- The noise level (sound pressure level) of this ma-
chine may exceed 82 dB (A) at the workplace. In
this case, sound and hearing protection measures
are required and used by the operator.
- Before operating the machine, read the operating
instructions.
- Never touch rotating or moving parts.
- Always report electrical faults to an electrician.
- Always keep work clothes, long hair, jewelery etc.
away from the machine.
- Switch off machine when work is interrupted.
- Wear suitable safety clothing (accident prevention
shoes, safety glasses, etc.).
- Check safety devices for correct function before
starting work.
- Read and understand safety instructions attached
to the machine.
- Perform regular maintenance.
- Do not overload the machine.
- If the machine is not operating normally, the super-
visor must be informed immediately.
- Caution is advised when people are in the work
area.
- Never change the electrical system.
- Never remove mechanical or electrical safety de-
vices.
- Special attention is needed during transport or re-
construction; The transport regulations must be
followed.
3 Intended Use
The belt and disc sander is used exclusively for sanding
wood and wood-like materials (wood fiber board, chip-
board, plywood boards, laminated and non-laminated
boards, etc.). Grinding other materials can result in fire,
injury or damage. Please pay attention to the instructions
in the operating instructions as well as the information si-
gns on the machine. It must be connected to a suitable
extraction system. The belt and disc sanding machine is
suitable for private use, in schools, craft workshops,
workshops and for home improvement, suitable, not for
industrial use. Proper use also includes compliance with
all information in this manual. Any use beyond the inten-
ded use or otherwise is considered misuse.
Ear protection
Please wear ear protection when working with the
device.
23
4
1

Technical Data
BTS-Series | Version 3.06 7
Unauthorized modifications or changes to the belt and
spindle grinder may void the CE conformity of the Ma-
chine and are prohibited.
The company Stürmer Maschinen GmbH assumes no
liability for design and technical changes to the belt and
spindle grinder.
The improper use of the belt and spindle grinder as well
as the disregard of the safety regulations or the opera-
ting instructions exclude a liability of the manufacturer for
resulting damage to persons or objects and will invali-
date the guarantee!
4 Technical Data
4.1 Type plate
Fig. 2: Type plate BTS 150
5 Transport, packaging, storage
5.1 Delivery and transport
Delivery
Check the Belt & disc sander machine for visible trans-
port damage after delivery. If you discover any damage
to the Belt & disc sander machine, immediately report it
to the carrier or dealer.
Transport
Improper transport is accident-prone and can cause da-
mage or malfunctions for which we do not grant any liabi-
lity or guarantee.
Transport the scope of delivery secured against shifting
or tilting with a sufficiently dimensioned industrial truck to
the installation site.
WARNING!
Risk of misuse!
Misuse of the belt and disc sander can lead to dange-
rous situations.
- Operate the belt and disc sander only in the power
range specified in the technical data.
- Never bypass or override the safety devices.
- Never work on other materials than specified in the
intended use.
- Only operate the belt and spindle grinder in a techni-
cally perfect condition.
- Never work on several workpieces at the same time.
Type BTS 150 BTS 250
Current draw 400 W 800 W
Power output 250 W 560 W
Current consumption 2,0 A 3,8 A
Sanding belt size 915 x 100 mm 1220 x 150 mm
Speed of sanding
belt
490 U/min 517 U/min
Suction Ø 58 mm 120 mm
Sanding pad Ø 150 mm 250 mm
Dimensions Table 230 x 150
mm
360 x 200 mm
Sanding unit swive-
ling
0 - 90° 0 - 90°
Table tilting 0 - 45° 0 - 45°
Dimensions 560 x 270 x
300 mm
720 x 410 x
440 mm
Weight 17 kg 47 kg
Item number 5904150 5904250
WARNING!
Severe or fatal injuries may occur if parts of the
machine tumble or fall down from the forklift
truck, pallet truck or from the transport vehicle.
Follow the instructions and information on the trans-
port box.
Note the total weight of the machine. The weight of
the machine is indicated in the "Technical data" of the
machine. When the machine is unpacked, the weight
of the machine can also be read on the rating plate.
Only use transport devices and load suspension gear
that can hold the total weight of the machine.

8BTS-Series | Version 3.06
Scope of delivery and Accessories
General risks during internal transport
Devices may only be transported by authorized and qua-
lified persons. Act responsibly during transport and al-
ways consider the consequences. Refrain from daring
and risky actions.
Gradients and descents (e.g. driveways, ramps and the
like) are particularly dangerous. If such passages are
unavoidable, special caution is required.
Before starting the transport check the transport route for
possible danger points, unevenness and disturban-ces
as well as for sufficient strength and load capacity.
Danger points, unevenness and disturbance points must
be inspected before transport. The removal of danger
spots, disturbances and unevenness at the time of trans-
port by other employees leads to considerable dangers.
Careful planning of internal transport is therefore essen-
tial.
5.2 Packaging
All used packaging materials and packaging aids of the
grinding system are recyclable and generally need to be
transported to the material recycling.
Crush the packaging material made of cardboard and
supply it to the waste paper collection.
The films are made of polyethylene (PE) and the uphol-
stery parts are made of polystyrene (PS). These materi-
als have to be delivered to a recycling station of the re-
sponsible dumping company.
5.3 Storage
The belt and disc sander must be thoroughly cleaned be-
fore being stored in a dry, clean and frost-free environ-
ment. Cover the machine with a protective tarpaulin.
6 Scope of delivery and Acces-
sories
6.1 Scope of delivery
Check the machine immediately after delivery for trans-
port damage and shortages. To do this, remove all indi-
vidual parts from the box and compare them with the fol-
lowing list.
- Sanding belt grit 60
- Operating instructions
- Suction nozzle adapter 35 to 120mm
- Grinding wheel grit 80 (glued on)
6.2 Accessories
- Base
Item number: 5914250
- Abrasive sheet Ø250 K150, adhesive-backed
Item number: 5912515
- Abrasive sheet Ø250 K120, adhesive-backed
Artikelnummer: 5912512
- Abrasive sheet Ø250 K100, adhesive-backed
Item number: 5912510
- Abrasive sheet Ø250 K80, adhesive-backed
Item number: 5912508
- Abrasive sheet Ø250 K60, adhesive-backed
Item number: 5912506
- Velcro pad Ø250, self-adhesive
Item number: 5912501
- Sanding belt with paper backing 1219x150 K180
Item number: 5911218
- Sanding belt with paper backing 1219x150 K120
Item number: 5911212
- Sanding belt with paper backing 1219x150 K100
Item number: 5911210
- Abrasive belt with paper backing 1219x150 K80
Item number: 5911208
- Abrasive belt with paper backing 1219x150 K60
Item number: 5911206
- Angle stop
Item number: 5914251
WARNING!
The use of unstable lifting and load suspension
equipment that might break under load can cause
severe injuries or even death. Check that the lifting
and load suspension gear has sufficient load-bea-
ring capacity and that it is in perfect condition.
Observe the accident prevention regulations issued
by your Employers Liability Insurance Association or
other competent supervisory authority, responsible
for your company.
Fasten the loads properly.
WARNING: DANGER OF TIPPING
The device may be lifted unsecured by a maximum
of 2cm.
Employees must be outside the danger zone, the
reach of loads.
Warn employees and, if necessary, advise employ-
ees of the hazard.

Description of the device
BTS-Series | Version 3.06 9
7 Description of the device
Fig. 3: Description
1. Track adjustment screw
2. Sanding belt board
3. Tensioning lever
4. Worktable - retaining hole
5. Mounting hole
6. Sanding unit - locking screw
7. Clamping screw - table swiveling
8. Machine foot
9. Safety stop
10. Grinding belt
11. Mounting hole
12. ON / OFF switch
13. Sanding plate protection
14. Worktable
15. Grinding wheel
16. Sanding pad
8Assembly
Remove the machine from its packaging and remove all
protective films. Make sure that the machine is not set up
or put into operation in a damp or wet environment. The
humidity should not exceed 60% and the measured
room temperature should be between 0 ° C and 40 ° C.
For a safe footing, the machine should be mounted on a
stable base (such as a workbench) using the holes provi-
ded in the machine base.
8.1 Safety stop
Take the safety stop as shown in Fig. 4 and fix it with the
hexagon screw M6 x 1.0-14 and the toothed disc. When
tightening the screw, make sure that you fasten the
safety stop approx. 3 mm above the sanding belt. Do not
overtighten the screw, otherwise it may over-tighten.
Fig. 4: Assembly the safety stop
Screw
Safety
Stop
Lock washer
straddle
wrench

10 BTS-Series | Version 3.06
Settings
8.2 Working table
Take the worktable as shown in Fig. 5 and attach it to the
table support with 3 M6 x 1.0-14 hex bolts and washers.
Fig. 5: Mount the table support
Then hold the preassembled worktable to the grinding
machine as shown in Fig. 6 and fix it with the clamping
screw and a washer. The edge of the table must be posi-
tioned with a maximum distance of 2 mm to avoid pin-
ching workpieces or fingers between the table and the
grinding wheel.
Fig. 6: Mount the work table
9Settings
9.1 Pivoting worktable
Loosen the clamping screw and bring the work table into
the desired position. Then tighten the clamping screw
again.
Fig. 7: Pivoting worktable
9.2 Align the working table
To align the work table exactly at 90 °, make a right angle
and hold it to the table as shown in Fig. 8. Then loosen
the table pivot clamping screw and align the table. Finally
tighten the clamping screw again.
Fig. 8: Align the work table
Table
Screw
Washer
Table support
Screw
Washer
Table
DANGER!
Before any intervention on the machine, it must be
disconnected from the power supply. Handling and
working with the machine is only permitted for per-
sons who are familiar with the handling and opera-
tion of the machine.
Table
Screw
Table
Angle
Scale
Screw