ROJEK FSN 300A User manual

SINGLE-SPINDLE MILLING MACHINE
WITH A TILTING SPINDLE AND SLIDING TABLE
FSN 300A
translation of an original
Service instructions handbook
updated 3 / 2017
ROJEK
WOODWORKING MACHINES Masarykova 16, 517 50 astolovice
the Czech Republic - Europe [email protected] www.rojek.cz
[phone], to - 41 fax -323 341, -322 701

ROJEK a.s. 2 FSN 300A
Contents
Foreword
1 Use of the machine
1.1 Purpose of the machine
1.2 Workers‘ qualifications
1.3 Working environment
2 Machine marking
3 Technical specifications
3.1 Machine dimensions
3.2 Possible variants of the machine
3.3 Values of chips removed, feed, and power output
3.4 Specifications concerning the noise of the device
3.5 List of used source documents.
4 Safety instructions
4.1 General
4.2 Basic safety requirements
4.3 Clothes and personal safety
4.4 Safety regulations for operators
4.5 Safety regulations for maintenance
4.6 Safety regulations for working place.
5 Transport and storage
5.1 Transport and storage.
5.2 Machine lifting
6 Positioning the machine
6.1 Working area
6.2 Levelling and fixing a machine.
7 Connecting exhaustion system
8 Connecting to the mains
8.1 Connection to the mains
8.1.1 Connecting the machine - up to 3 kW
8.1.2 Connecting the machine - above 3 kW
8.2 Safety of operation
8.3 Direction of rotation
8.4 Change in the direction of rotation
8.5 Protection of electrical devices
8.6 Controlling the machine
8.6.1 Operating switch and emergency stop controller
8.6.2 Spindle brake releasing.

ROJEK a.s. 3 FSN 300A
9 Operating and adjusting the machine
9.1 Height setting
9.2 Tilting
9.3 Setting the guide rulers
9.3.1 Guide rulers of the protection cover
9.3.2 Setting the cross guide ruler on sliding table CV
9.4 Change of revolutions
9.5 Longitudinal milling
9.6 Milling with mechanical feed
9.7 Milling of narrow workpieces – tenon jointing
9.8 Milling of workpieces with small cross-section
9.9 Cover of the tool for milling of bents
9.9.1 Technical specifications
9.9.2 Description of the device
9.9.3 Mounting of the device
9.9.4 Work on the machine with the cover
9.10 Working places
9.11 Protective aids
9.12 Installation of removable parts
9.13 Forbidden handling
10 Tools
10.1 Recommended tools
10.2 Replacement of milling tools
11 Maintenance
11.1 Tightening the V-belt of the milling machine
11.2 Cleaning and lubricating
11.3 Troubleshooting
12 Scope of delivery
12.1 Accessories
13 Special accessories
14 Spare parts
15 Guarantee
16 Dealing with packing and machine service life expiry
16.1 Dealing with packing
16.2 Dealing with machine.
Enclosures :
A) Electrical wiring chart
B) List of electrical components

ROJEK a.s. 4 FSN 300A
Foreword
These instructions have been created by the device manufacturer and are an integral part of the ma-
chine delivery. They contain basic information for qualified operating staff and describe the environ-
ment and manners of the machine use for which it has been designed, and also contain any informa-
tion necessary for the correct and safe operation.
The machine is equipped with various safety devices protecting both the operator and the machine for
its common technological use. Nevertheless these measures cannot cover all safety aspects and there-
fore it is necessary that the operator should read and understand these instructions before starting to
use the machine. Errors made in the course of installation as well as during operation itself will thus
be avoided.
Do not try therefore to put the machine into operation before you have read all instructions
for use supplied together with the machine and before you have understood all its functions and
working procedures.
Certain information or drawings may not be intended directly for the machine purchased by you as
these instructions contain any information for various variants of this type made by our company. By
comparing the respective part of the instructions with a particular machine you will find out whether
or not they correspond to each other.
The manufacturer reserves the right to make partial alterations within continuous technical machine
development.
For emphasis of important passages in the basic text the bald characters and marking with a certain of
the following symbols have been used:
The appeal recommending to use the procedure according to the
following regulation exclusively. A failure to observe this regula-
tion may result in death or serious injuries of the operating staff.
A warning against improper working procedures or use of the
machine that may cause a danger to human health, machine func-
tioning, the environment or economic losses.
Caution is an appeal to take due care while the following activi-
ties are being performed. Any failure to comply with this appeal
may cause small injuries or damage to the machine.
Follow the instructions shown on the plates with which the ma-
chine is equipped. Do not remove or damage such plates. In the case of any damage caused to the
plate contact the manufacture and renew the plate.
Note
The text and picture part of the instructions is an intellectual property of the ROJEK Co.
and will remain in the company´s ownership. No part of the instructions may be copied
or reproduced without a prior consent nor any third persons are allowed to become
acquainted with these instructions or with any part thereof.

ROJEK a.s. 5 FSN 300A
1 Use of the machine
1.1 Purpose of the machine
The machine is designed as a single-spindle vertical milling machine with a manual workpiece fee-
ding. Machine has a fixed table and a sliding table, both making a common plane. Vertical spindle is
tiltable with adjustable height.
Machine enables semifinished products made of wood or materials based on wood to be milled with a
vertical spindle.
Machine is designed for operation performed by one worker only.
Machine may not be handled by children and youngsters in any way.
1.2 Workers‘ qualifications
Only and expert skilled in the field of wood-machining or a worker instructed and trained by such
expert may operate the machine, regardless of the sex. While working on the machine the operator
must get familiar with these instructions and comply with any safety rules, regulations and provisions
in force in the respective country.
1.3 Working environment
The machine must be operated in a workshop environment the temperature of which does not exceed
+40
o
and does not drop below +5
o
. The relative humidity of air from 30% to 95% - non-condensing.
The height above the sea level up to 1000 m. The environment classification – danger of inflammable
dust fire (BE2N2).
2 Machine marking
The type of machine can be identified according to the manufacturing plate fixed
to the machine stand.
FSN 300 A vertical spindle milling machine with a tilting spindle and sliding table CV

ROJEK a.s. 6 FSN 300A
Information plates as well as plates warning about a danger are placed on the machine.
1 tightening 2 attention !
3 attention ! electric device 4 vertical spindle position stopper
5 proper cutters 6 main switch
7 vertical spindle height set-up 8 spindle tilt
9 range of optimal spindle rotation speed 10 switch of spindle electric brake release
11 a) rotating direction 12 setting of spindle rotation speed
11 b) OFF; still stand
11 c) electric brake released

ROJEK a.s. 7 FSN 300A
3 Technical specifications
FSN 300 A
Motor power kW 3; (2,2; 3,7*)
Motor rotating speed at 50 Hz RPM
60 Hz RPM
2 865
3 438
spindle diameter mm 30 [35; 40; 50; (5/4)“; (5/4)”/(3/4)“]
spindle rotating speed RPM 2 500, 3 500, 6 000, 8 000, 10 000
max. spindle lift mm 140
spindle length mm 130
spindle tilt -45
o
÷+ 5
o
max. diameter of hole in table mm 220
max. tool diameter under table mm 175
max. tool diameter above table mm 200
machine dimensions
length
with CV 310 long 1m mm
with CV 310 long 1,6 m mm
1155
1755
width with supporting table mm
with CV frame mm
1375
2055
table height mm 892
max. machine height mm 1 300
table diameters mm 1 000 x 370
exhausting nozzle diameter mm 100
weight (with CV long 1 m) kg 240**
other parameters
voltage / frequency
1f + PE + N ; 230 V / 50 (60) Hz (only 2,2 kW)
3f + PE + N ; 400(230) V / 50 (60) Hz
safeguarding A 16 (25)
sliding table CV 310 long 1 mm
table dimensions mm
travel length mm
1000 x 310
1295
sliding table CV 310 long 1,6 m
table dimensions mm
travel length mm
1600 x 310
1900.
*el. motor with power output equal to 3.7 kW only for voltage 3 x 400 V / 50 (60) Hz
** 3kW; CV table extension; fixture; angular ruler; hose

ROJEK a.s. 8 FSN 300A
3.1 Machine dimensions

ROJEK a.s. 9 FSN 300A
3.2 Possible machine variants
FSN 300 A
electric motor power output
2.2 kW 1 phase
3 kW 3 phases
3,7 kW 3 ph.(3 x 400 V)
1
1
1
operating voltage:
1 x 230 V
3 x 230 V or 3 x 400 V
1
1
frequency: 50 or 60 Hz 1
spindle
with a push-type spring collet
for a shank tool Ø 8; 12; 12.7 mm
one-piece – fixed
two-piece – replaceable
1
1
Sliding table
CV 310 long 1m | 1,6 m 1
milling spindle brake releasing
(only for machines with CEG motors) 1
undercarriage 1
3.3 Values of chips removed, feed and power output
power output (kW) feed (m/min) machined width (mm) chip removal (mm)
2.2 5 130 4.5
3 5 130 7
The value given above apply for spruce wood of a common quality with humidity equal to about 12 to
15%, with sharp tools These values may be thought initial while the machine is being put into opera-
tion. The inverse proportion applies between the machined surface (machined width x chips removed)
and the feed (the larger the surface the smaller the feed) and the direct proportion applies between the
machined surface and the power output (the larger the surface the higher power output). The values in
the table may roughly be used for both planing and thicknessing as well as for milling with a vertical
spindle. After a long use of the machine these values may become changed a little. E.g. when hard
wood is machined and the tool is a bit blunt, an appropriate decrease of the values above should be
taken into account.
The size of chips removed depending on the machined width and hardness of the workpiece may be
chosen only up to such values with which the driving electric motor does not become overloaded.
Otherwise the electric motor thermal protection will be engaged and the machine will stop.
While any material with a low thickness is being machined, a worse quality of machining must be
taken into account due to the part springing.

ROJEK a.s. 10 FSN 300A
3.4 Specifications concerning noise of the device ( EN 848-1:1999; ISO 7960:1995)
FSN 300A
without tool L
p
A
eq
= 70.4 dB(A)
Level of noise L
pf
with tool L
p
A
eq
= 83.0 dB(A)
without tool L
WA
= 78.6 dB(A)
Level of acoustic output A (L
WA
)
EN ISO 3746:1995 K = 4 dB with tool L
WA
= 88.5 dB(A)
The values given are those of emissions and do not necessarily mean any safe working values. Al-
though there is a correlation between the value of emissions and the levels of exposure, these values
cannot be used for reliable determination whether or not additional measures are necessary. The fac-
tors influencing actual levels of workers‘ exposure include the properties of the working area, other
sources of noise etc., e.g. the number of machines and the other neighbouring procedures. Also the
highest permissible levels of exposure may vary in different countries. This information should help
the machine user to evaluate the risk and the risk rate in a better manner.
3.5 List of used source documents
Directive 2006/42/EU stating technical demand on machinery.
Directive 2014/30/EU about assessing products conformity from view point of electromagnetic com-
patibility when delivered on market
Directive 2014/35/EU about assessing conformity of electric devices intended for use under specific
limit voltages when delivered on market
EN ISO 12100 : 2011 (EN ISO 12100 : 2010)
Machinery safety - General fundamentals for designing - Risk assessing and reducing
EN ISO 13857 : 2008 (EN ISO 13857 : 2008)
Machinery safety - Safe distances to avoid dangerous places reaching by hands/arms ~ feet/legs
EN 349+A1 : 2008 (EN 349 : 1993 + A1 : 2008)
Machinery safety - the smallest gaps to avoid human parts being pressed
EN ISO 13850 : 2016 (EN ISO 13850 : 2015)
Machinery safety - Emergency stopping - Fundamentals for designing
EN ISO 14120 : 2016 (ISO 14120 : 2015) Machinery safety - Guards - General fundamentals for
designing and production of fixed and movable guards
EN ISO 13849-1: 2016 (EN ISO 13849-1 : 2015)
Machinery safety - Safety parts of cotroling systems - Part 1: General fundamentals for designing
EN 848-1+A2 : 2013 (EN 848-1 : 2007 + A2 : 2012) Woodworking machinery safety - One-sided
shapers with rotating tool - Part 1: One-spindle vertical shapers
EN 1037+A1 : 2008 (EN 1037 : 1995 + A1 : 2008) Machinery safety - avoiding an unwished start
EN ISO 14119 : 2014 (EN ISO 14119 : 2013)
Machinery safety. Blocking devices connected with guards. Fundamentals for designing +choice.
EN 55011 ed.3 : 2010 (EN 55011:2009) Industrial, scientific and medical equipments - Characteris-
tics of high frequency interference - Measuring limits and methods
EN 60204-1 ed. 2 : 2007 (EN 60204-1 : 2006)
Machinery safety - Electric equipment of machines - Part 1: General fundametals
EN 60073 ed.2 : 2003 (EN 60073 : 2002)
Basic and safety fundamentals for interface man-machine, for marking and identification -
informers and controlers coding fundamentals
EN 80416-1 ed.2 : 2009 (EN 80416-1 : 2009)
Basic rules for signs for using on objects - Part 1: Making of graphical signs for registration
EN 80416-2 : 2002 (EN 80416-2 : 2001)
Basic rules for graphical signs to be used on objects - Part 2: Arrows form and using.

ROJEK a.s. 11 FSN 300A
4 Safety instructions
4.1 General
This machine is equipped with various safety devices protecting both the operator and the machine.
Nevertheless, this cannot cover all safety aspects and therefore the operator, before putting the ma-
chine into operation, must read this chapter and understand it fully. Furthermore the operator must
also take into account other aspects of danger relating to the surrounding conditions and material.
This handbook comprises three categories of safety instructions.
The appeal recommending to use the procedure according to the
following regulation exclusively. A failure to observe this regula-
tion may result in a death or serious injuries of the operating
staff.
A warning against improper working procedures or use of the
machine that may cause a danger to human health, machine
functioning, the environment or economic losses.
Caution is an appeal to take due care while the following ac-
tivities are being performed. Any failure to comply with this
warning may cause small injuries or damage to the machine.
Follow the instructions on plates with which the machine is
equipped. Do not remove or damage such plates. In case
of any damage caused to a plate contact the manufacturer and
renew the plate.
4.2 Basic safety requirements
Do not touch, under any circumstances, the low-voltage devices
on the electric control panel, transformers, motors and terminal
blocks which are equipped with a plate.
- Before connecting the machine to the mains make sure that all safety items are in their active posi-
tions and check their functioning. If it is necessary to remove the doors or protective covers, switch
off the main switch and lock it or disconnect the machine by pulling the plug out.
Do not connect the machine to the mains while the door or pro-
tective cover is removed.
In order to avoid improper operation get acquainted with location
of switches before switching the machine on.
Remember the position (location) of the emergency stop switch
so that you can use it promptly at any time.
- Be careful and do not touch any switches incidentally while the machine is being operated.
- Do not touch any rotating tool with naked hands or with any other object under any circumstances.
- In the case that you are not going to work on the machine, turn off the machine by the switch on the
control panel and disconnect the power supply from the machine.
- Before cleaning the machine, switch off and lock the main switch or disconnect the machine by pull-
ing the plug out.
- Before doing any maintenance work inside the machine switch off and lock the main switch or dis-
connect the machine by pulling the plug out.
- If the machine is used by more workers, do not proceed to other work without informing the other
worker about what procedure you want to use.

ROJEK a.s. 12 FSN 300A
- Do not alter the machine in any manner which might cause any risk to its safe operation.
- If you have any doubts on correctness of your procedure, contact a responsible person.
- Do not neglect performance of regular inspections in accor-
dance with the instructions for use.
- Check and make sure that no disturbances occur on the machine
caused by the user.
- After the work is finished, adjust the machine so that it is ready
for another series of operations.
- Should a failure in power supply occur, switch off the main switch immediately or disconnect the
machine by pulling the plug out.
- Do not paint, make dirty, cause any damage to, alter or remove safety plates. If they become illegible
or lost, contact the manufacturing plant and renew the plates.
4.3 Clothes and personal safety
- Experience shows that injuries are caused by various personal
articles, e.g. rings, watches, bracelets etc. Therefore take them
off before starting the work, button the sleeves, take off a tie,
which may be caught with various parts of the working ma-
chine. Pin your hair together so that it does not flutter freely and wear suitable shoes recommended
or prescribed by labour-safety regulations of all countries.
- Wear safety outfit (goggles, apron, safety shoes etc.).
- In the case of any obstacles above your head – in the working area - wear a helmet.
- Always wear a protective mask while machining any material that produces dust while being ma-
chined.
- Never wear any loose working clothes.
- Do not work on the machine under influence of drugs or alcohol.
- If suffering from digginess, weakness or faintness, do not work on the machine.
4.4 Safety regulations for machine operator
Do not put the machine into operation before you get acquainted
with the contents of the instructions for use.
- Make sure that electric cables are not damaged so that injuries caused by electric current leaking
(electric shocks) are avoided.
- Check regularly that safety covers are mounted properly and that they are not damaged. Repair dam-
aged covers immediately or replace with other ones.
- Do not put the machine with the cover removed into operation.
- Never use any tools that are distorted or broken.
- Always use the tool suitable the work given, which corresponds to the machine specifications.
- Replace blunt tools as soon as possible as blunt tools are often a cause of injuries or damage.
- Never use the tools at speeds higher than those recommended by the respective manufacturer.
- Do not remove or interfere otherwise in safety devices such as covers, end switches, and do not
block them mutually.
- While handling parts above your possibilities, ask for assistance.
- It is recommended not to work on the machine during a storm.

ROJEK a.s. 13 FSN 300A
4.5 Safety regulations for maintenance
Do not do any maintenance work before you get acquainted with the instructions for maintenance
thoroughly.
- Before you start to perform any maintenance work, always turn
off the main switch and lock it, or disconnect the machine by
pulling the plug out. A possibility of accidental putting the ma-
chine into operation by another person is thus avoided.
- Any maintenance work on electric parts of the equipment may
be done by a qualified person only.
- Even if the machine is stopped, the power supply is not discon-
nected. Always switch off the main switch and lock it or dis-
connect the machine by pulling its plug out.
- Do not clean the machine or its peripheral devices even if the
machine is completely out of operation, unless the main switch is switched off and locked or the
plug is pulled out from the mains socket.
- Keep your fingers in a distance from belts and belt pulleys.
- While replacing electrical parts of the equipment, switch off the main switch, lock it or disconnect
the machine by pulling the plug out. Faulty parts should be replaced only with products having the
same specifications as the original ones.
- Do not remove or alter blocking of limit switches or any other safety devices.
- Do not switch the machine on before all covers removed for the purposes of maintenance are put in
their places again.
- Always keep the maintenance area including the working place clean.
- Any maintenance work must be done by a qualified staff in
accordance with the instructions issued by the machine manufac-
turer.
- Read the instruction manual for maintenance men carefully and
completely.
- For replacement of parts and necessary things, get in advance those being identical with the original
type and complying with standards.
- Use only specified kinds or lubricating oils and grease or those equivalent to them.
- Do not use compressed air to clean the machine or to remove chips.
- Always check the results while a responsible person is present.
4.6 Safety regulations for working place
- Always ensure a sufficient working area and free access to the
machine and peripheral devices.
- Put tools and any other obstacles in the place designed for this
purpose, in a distance from the machine.
- Ensure sufficient lighting in the working area which will not create shadows or cause the strobo-
scopic effect. For safe and quality work the hygienic standards specify the minimum intensity 500
lx.
- Never put any tools or any other objects on working tables or covers.

ROJEK a.s. 14 FSN 300A
5 Transport and storage
5.1 Transport and storage
While transporting or handling the machine, be most careful and let this activity be done by qualified
personnel especially trained for this kind of activity.
While a machine is being loaded or unloaded,make sure that
no person or subject gets pressed by the machine !
Do not enter the area under the machine lifted
by a crane or a high-lift truck !
During transport or storage the machine must be protected against
excessive impacts and humidity.
It should be stored in a shelter at temperatures ranging from -25°C to 55°C.
As standard, the machine is wrapped up in a foil and is transported this way. Upon request the ma-
chine may also be packed in a wooden box.
5.2 Machine lifting
The machine or its individual parts may only be lifted by means of an approved lifting device with
verified lifting capacity. It is recommended to use: D - high-lift
truck E - crane or any other lifting device F - manual lifting
carriage
Use a high lift with forks of a sufficient length !
Prepare a high-lift truck (D) or a manual
lifting trolley (F) with sufficient lifting
capacity
- put the forks (G) below the machine.
Should you use a crane (E) or a similar
hoisting equipment, proceed as follows:
- prepare 4 lifting ropes (H) at least 2 m
long
- fix the ropes to crane (J) hook with
required capacity
- place the other end of the ropes onto
lifting rods according to figure left
(rods are not a machine delivery) part
- after lifting a machine slightly check
stability of machine hanging on ropes
- lift the machine carefully and slowly
and then move it, without jerking, to
chosen standing place.
The mass of a FSN 300 A is 260 kg.
A machine can be havier, the mass
depends on a machine making as per
ordered specification.

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6 Positioning the machine
Remove the protective coating from the working tables and other parts of the machine either with
paraffin oil or any similar solvent, do not use petrol or similar solvents for this acti-vity – they might
cause reduced corrosion resistance of certain parts of the machine.
The working area size depends on the type of the machine, assumed working operations and size of
material machined.
Do not forget about the space for location of a sufficiently effective exhausting system or connecting
hoses for the central exhaustion.
6.1 Working area
It is important to maintain free area
of 0.8 m around the machine, which is re-
quired for the working place.
If any long material is machined, it is neces-
sary to have a sufficient room in front of the
machine as well behind it in the places of
material input and output.
6.2 Levelling and fixing the machine
In the lower part of the stand the machine is
equipped with legs with levelling bolts and
holes for anchoring bolts. Use steel washers
under the levelling bolts (included in the
delivery) and level the machine horizontally
with tolerance of 1mm/1000 mm and
screw in to the floor (anchor).
The attached drawing shows the location of
the anchoring holes on the machine.

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7 Connecting of exhaustion system
For the proper functioning of the machine, exhaustion equipment with minimum exhaustion capacity
of 570 m
3
/hour and minimum speed of air in the pipes equal to 20 m/s for dry particles and 790
m
3
/hour and minimum speed of air in the pipes equal to 28 m/s for wet particles is necessary.
Work on the machine only with the exhaustion system run-
ning !
Switch on the machine drive and exhaustion system
at the same time !
The exhausting is lead out by a hub Bon vertical spindle guard A.
Connect it by a flexible exhaust-ing hose Ø 100 mm.
A unifying exhaustion nozzle (D) can be put onto hub (B). Nozzle
can be connected with Ø 40 mm hose (C - lower exhaustion), and with Ø 100 mm hose, as well.
Wood waste should be liquidated in an environment-friendly manner so that the environment
does not become deteriorated.

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8 Connecting to the mains
The connection of the machine to the mains may only be made
by a qualified person electrotechnically qualified.
The person must know rated norms.
8.1 Connecting to the mains
8.1.1 Connecting the machine - up to 3 kW (installed power output up to 3 kW inclusive)
For the power supply a four-wire cable with plug CEE 16 amperes and socket CEE 16 amperes is
used. The socket, from which the machine is supplied with power, must be grounded (or connected to
the neutral wire) in compliance with regulations, protected by at least 16 A cut-out fuse or circuit
breaker L.
8.1.2 Connecting the machine - above 3 kW (installed power output above 3 kW)
Before you start to connect the machine, make sure that the lead is not under voltage.
Unscrew the cover of terminal board (A), push the connecting cable through to the box with the ter-
minal board and connect individual phase conductors with the corresponding terminals. Connect the
protective conductor (yellow-green) to PE terminal and connect the central conductor (light blue) to
terminal A, if it is required. Cross-sections of the phase conductors and of the protective wire must be
in compliance with the standards prescribed.
Check that the connection is correct and screw the terminal board cover back.

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8.2 Safety of operation
Damaged power supply cables must be replaced by the com-
petent specialist immediately. Operation with damaged ca-
bles is dangerous to life and therefore forbidden !
Before putting the machine into operation make sure that the
voltage and frequency specified on the machine type plate comply with the values of the mains to
which it is connected.
Before adjustment and replacement of tools and before any
adjustment work, alterations and maintenance work, al-
ways turn off the main switch and lock it or disconnect the
machine by pulling the plug out. Putting the machine into
operation by another person
accidentally will thus be avoided.
8.3 Direction of rotation
When the spindles are rotating in the incorrect direction,
the danger of injury is imminent.
The vertical spindle of the milling machine must turn anticlockwise - i.e. to the left, against the mate-
rial – the manner of machining in the opposite direction.
Manner of machining in the same direction is forbidden.
In order to find out the direction of rotation switch on the machine for a moment.
8.4 Change in the direction of rotation
In the case of three-phase motors the direction of rotation may be changed by exchanging (reconnect-
ing) two conductors mutually (two black ones or a black one and a brown one) in the power-input
plug or in the terminal board. Be careful so that the yellow-green conductor with a phase conductor
are not mistaken!
Any alteration of the electrical wiring may only be performed by an specialist with the appro-
priate electrical engineering qualifications !
8.5 Protection of electrical devices
Electric motor of the vertical milling machine is equipped with an electric brake which is capable of
stopping the machine in the required time – up to 10 s.
Should the electric brake fail to work properly (the spindle run-out time is longer than 10 s), it
is not allowed to work on the machine !
Protection against dangerous contact with unlive wires is made by automatic disconnection
from the power supply source in compliance with art. 6.3.1 of EN 60 204-1 and IEC 60 346-4-41.

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8.6 Controlling the machine
8.6.1 Operating switch and emergency stop controller
Connection of the machine to or discon-
nection from the mains is performed by
pushing the plug in a socket or pulling it
out or by switching on and off by means
of a lockable main switch (E). As long as
the machine is not connec-ted to the
mains, it cannot be turned on by the oper-
ating switch (A.). The machine is
switched on by pressing the green button
(B) on the operating switch (A). The ma-
chine is switched off by pressing the red
button (C). After termination of work,
disconnect the machine from the mains
by pulling out the plug on the power sup-
ply cable or by switching off the main
switch (E).
In the event of a power supply failure the
switch will automatically turn off the
machine by means of the protection con-
troller, i.e. when the power supply is re-
stored, the machine must be switched on
again. If the motor is overloaded, the
built-in circuit breaker for the motor will
switch off the machine.
If the motor circuit breaker controller
switches the machine repeatedly in short
intervals (twice or three times), check the
machine (motor functioning, blunt tools
etc.).
The emergency stop controller (D) will remain secured in the switch-off position after use and must
be released before a new start of the machine by turning the mushroom-like head slightly. Without
such releasing the machine cannot be started!
The emergency stop controller (D) is accessible from particular working places.
8.6.2 Spindle brake releasing; motor brake releasing switch
For an easier manipulation with tool when changing the milling cutter in case of a motor with an elec-
tric brake - the machine can be equipped with a motor brake releasing switch (F).
position G - normal operation
position H - brake released. After switching over to this position H, and pressing the green button
(B) on the operation switch (A), the spindle brake will be released.
position 0 - OFF
If the switch is turned over through position 0, the machine must always be turned on
by pushing the green button (B) on the operation switch (A).