Diamond IRIS PSB-130/2 Operating instructions

Mod: PSB-130/2
Production code: ZZIS1304053F
06/2012

DOUGH MIXER
IRIS
OPERATING AND
MAINTENANCE
MANUAL Rev.001 01-06-2012
Read the
instruction
manual
carefully
before
beginning
to work
with the
machine

INDEX
SECTION 1: Description and Main
specifications
1.1 Presentation ....................................................3
1.2 Warranty ............................................................ 3
1.2.1 Warranty exclusions ..............................3
1.3 Description of the machine and use ................3
1.3.1 Use .........................................................
1.3.2 Description ............................................
1.3.3 Safety devices ........................................
1.4 Identification ....................................................6
1. Noise level .......................................................6
1.6 Technical specifications ..................................6
SECTION 2: General safety rules
2.1 Safety ..........................................................8
2.1.1 Terminology used ..................................8
2.2 Safety decals ...................................................8
2.3 Clothing ..........................................................9
2.4 Ecology and pollution ....................................10
2. Safe use of the machine ................................10
2.6 Safe maintenance ..........................................10
SECTION 3: Transport and installation
3.1 Transport ............................................................ 11
3.2 Installation ......................................................11
3.2.1 Positioning ...........................................12
3.2.2 Electrical connection ............................12
3.3 General inspection .........................................12
SECTION 4: Instr ctions for se
4.1 Prior to use ....................................................13
4.1.1 Control panel (80-2 0) ........................13
4.1.2 Control panel (30-40) ..........................13
4.2 Use .........................................................13
4.2.1 How to start the dough mixer ..............14
4.2.2 How to take product from the bowl ......14
4.3 Emergency stop .............................................1
4.4 Cleaning after use ..........................................1
SECTION 5: Maintenance
.1 Routine maintenance .....................................16
.2 Belt transmission ...........................................16
.2.1 Dough tool transmission ......................17
.2.2 Bowl transmission ................................17
.3 Storage .........................................................18
.4 Troubleshooting .............................................19
SECTION 6: Spare parts
6.1 How to order spare parts …………………… ......21
6.2 Spare parts tables ..............................................21
Dati riportati nella targhetta di identificazione della macchina
Model
Year of manufacture
Serial number
Delivery date of machine
Manifacturer

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SECTION 1
Description and main specifications
1.1 PRESENTATION
This manual contains the instructions and every
indication considered necessary for correctly
using and servicing the mod. «IRIS» do gh
mixer, also called machine in the following text,
manufactured by
………………………………………………………
………….., also called Manufacturer in the text.
The information given in the manual does not
constitute a complete description of the various
components nor a detailed illustration of the way
they operate. However, the user will find
everything he normally needs to know for safe
use and correct care of the machine. Regular,
long-lasting operation and economic running of
the machine depend on compliance with the
instructions given in this manual as does careful,
regular maintenance.
WARNING
Fail re to comply with the instr ctions given
in this man al will oblige the Man fact rer to
void the warranty provided with the machine.
If repairs or overhauls involving fairly complex
operations are required, contact the
Manufacturer where there are technicians able to
provide prompt and accurate technical
assistance.
1.2 WARRANTY
The Manufacturer guarantees its brand-new
products for a period of 24 (twenty-four) months
from the date of purchase. As soon as you
receive the machine, check to make sure that it
is in a perfect condition and complete.
Complaints must be presented in writing within 8
(eight) days from the date on which the actual
machine is received. The warranty solely covers
the repair or replacement, free of charge, of
those parts which, after having been carefully
examined by the manufacturer’s technical
department, are recognized as being defective
(excluding the electrical parts).
Repairs or replacement of parts under guarantee
will in no case extend the warranty terms.
However, the purchaser is only entitled to repairs
or replacements under guarantee if he has
complied with any other conditions concerning
warranty performance indicated in the contract of
supply.
1.2.1 WARRANTI EXCLUSIONS
The warranty also becomes void (besides in
the cases indicated in the contract of s pply):
- When there have been incorrect
manoe vres ascribable to the operator;
- When the damage has been d e to
ins fficient maintenance;
- When, following repairs carried o t by
the ser witho t the Man fact rer’s consent
or owing to the se of sp rio s spare parts,
the machine has been modified and the
damage is ascribable to these modifications;
- If the instr ctions in this man al have
not been complied with;
Damages ca sed by negligence,
carelessness, bad se and incorrect se of
the machine are also not covered by the
warranty.
Removal of the safety devices with which the
machine is eq ipped will a tomatically void
the warranty and relieve the Man fact rer
from all deriving liability.
If the machine or parts of it are ret rned, they
m st be shipped CARRIAGE PAID even when
the Man fact rer’s warranty is still valid.
1.3 DESCRIPTION OF THE MACHINE
AND USE
The mod. «IRIS» dough mixer is a machine that
bears «CE» marking, in compliance with
Annexes «I» and «IV» of directive 2006/42CE
and directive 2006/95/CE - 93/68/CEE
concerning the electrical components, as
specified in the declaration of conformity with
which every machine is supplied.

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Fig. 1 - Overall view of t e mac ine and main components
KEY Fig. 1 1) Upper cover fixing screw;

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2) Emergency stop button;
3) Control panel (consult «4.1.1 Control
panel» for t e relative description);
4) Protective grille;
5) Bowl;
6) Adjustable feet (4) to allow t e mac ine
to stand in a stable way on t e floor;
7) W eels for moving t e mac ine;
8) Side inspection panel;
9) Lock wit key;
10) Bearing structure of t e mac ine;
11) Upper pulley to control doug tool;
12) Doug tool;
13) Doug tool transmission unit;
14) Upper electric motor for controlling
doug tool;
15) Lower electric motor for controlling bowl
rotation;
16) Lower pulley for controlling bowl;
17) Bowl transmission unit;
18) Arrow indicating bowl rotation direction;
19) S aft.
20) Main switc wit door lock;
21) Door for accessing t e electric panel;
22) Position of identification plate.
23) Rear inspection panel;
24) Lower belt tensioning knobs.
1.3.1 USE
The mod. «IRIS» dough mixer has been
exclusively designed for the use of mixtures of
various types of flour available on all the
international markets, in authorized work
environments and small industries such as:
bakeries, pizza restaurants and confectioners’
shops.
1.3.2 DESCRIPTION
(T e numbers between brackets refer to Fig.1).
The machine mainly consists of a robust metal
bearing structure (10) equipped with two drive
units: an upper one (14), which turns the dough
tool. and a lower one (1 ), which drives the
bowl (18). The rotational movement of the IRIS
30-40 dough mixer is controlled by a single
motor. The electric panel is situated under the
upper cover, which also closes and protects
the machine. In both the drive units, the actual
drive is transmitted by V-belts, the tension of
which is regulated by belt stretchers. The
dough mixer’s functions are controlled by a
control panel (3), which is described in section:
«4.1.1 Control panel».
The work cycle can be programmed by means
of two timers, which allow the dough mixer to
automatically switch from the first to the second
speed. The bowl can be turned at first speed by
means of a selector, i.e.: NORMAL (anti-
clockwise direction), REVERSE (clockwise
direction), or bowl at a standstill. Drive reversal is
not available for version 30-40, thus the relative
selector is not installed. During the first phase,
the ingredients are mixed together so as to obtain
a homogeneous dough. As the consistency of the
mixture and the speed of the dough tool increase,
the dough is finished and fully blended in the
second phase. At the end of the process, the
operator can switch the selector to the reverse
rotation position (opposite to the direction of the
normal cycle, i.e. clockwise) to detach the dough
from the dough tool while bringing it to the center
of the bowl so that it can be easily cut and
removed.
WARNING
The Man fact rer declines all liability for
direct and indirect damages to persons,
animals or property ca sed by the machine
having been sed for p rposes other than
those described in this man al (see 1.3.2
Use).
1.3.3 SAFETY DEVICES
WARNING
The electrical system of this machine has
been b ilt in compliance with the c rrent
standards, partic larly standard EN 60204-01.
The electrical system is equipped with a device
that protects against overloads and includes a
thermic relay and protective fuses (consult the
wiring diagram supplied separately).
To safeguard the operator, the grille (4) prevents
the limbs from accidentally accessing the bowl
interior when the dough tool is turning. The bowl
and dough tool will immediately stop if this grille is
raised when the machine is running. The electric
panel is also protected by a key-operated lock. In
versions 80-2 0, the access door has a key-
operated lock (9) and a main switch (20) with

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6
door lock, i.e. it cannot be opened when the
machine is powered.
Protection is guaranteed for the 30-40 version
by the closing system of the upper cover with
main switch and the nut that closes the actual
cover itself. Lastly, the entire machine cycle will
immediately stop if the red stop button (2) on
the control panel is pressed.
1.4 IDENTIFICATION
Each machine has an identification plate (Fig.
2) positioned at the rear (22 Fig. 1), that
provides the following information:
- Man fact rer’s name and address;
- «CE» marking;
A) Model of the machine;
B) Serial n mber;
C) Year of man fact re;
The data plate also indicates:
Volts : Voltage
Hz : Frequency
kW : Kilowatts
A : Amperes
The information on the machine’s identification
plate must be copied into page 2 of this
manual and must always be stated when
spare parts and/or assistance are required.
The «IRIS» do gh mixer is eq ipped with
the following items as part of the standard
s pply:
- Operation and maintenance manual of the
machine with a list of spare parts;
- Wiring diagram;
- «CE» Declaration of conformity.
CARATTERISTICHE ELETTRICHE / ELECTRICAL CHARACTERISTICS
CARACTERISTIQUES ELECTRIQUES / CARACTERISTCAS ELECTRICA
Fig. 2 - Identification plate
1.5 NOISE LEVEL
When the dough mixer is operating, the noise
level at the operator’s station is less than 70 dB.
1.6 TECHNICAL SPECIFICATIONS
- Stainless steel bowl;
- Dough tool in highly resistant stainless steel;
- Moving parts assembled on bearings;
- Safety device with lock and immediate brake
that stops the motor as soon as the protective
grille is raised;
- Stove enamelled finish;
- V-belt transmission;
- Two mixing speeds;
- 24 Volt low voltage control panel;
- Two timers.
The timers stop when the protective grille is
raised during the work cycle, in both the first and
second speed mode. The cycle will continue
when the «START» key is pressed and the timers
will start from the same point in which they
stopped.

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POWER DOUGH FLOUR BOWL DIMENSIONS WEIGHT
MIXER
MODEL KW Kg.
minimo
Kg.
massimo Kg. Lt. A cm.
B
cm.
C
cm. Kg.
IRIS 30 1,9 2 30 20 4 7 89 119 200
IRIS 40 1,9 4 40 27 63 7 89 119 200
IRIS 60 4,6 60 36 9 64 101 139 330
IRIS 80 4,6 6 80 0 127 7 119 14 410
IRIS 80-D ,7 6 80 0 127 7 119 14 410
IRIS 100 ,7 8 100 6 14 7 119 14 410
IRIS 100-D 6,4 8 100 6 14 7 119 14 410
IRIS 130 6,9 12 130 80 193 8 140 1 0 80
IRIS 130-D 9, 12 130 80 193 8 140 1 0 80
IRIS 160 8, 1 160 100 2 0 9 1 6 160 740
IRIS 160-D 12, 1 160 100 2 0 9 1 6 160 740
IRIS 200 8, 17 200 12 27 9 1 6 160 740
IRIS 200-D 12, 17 200 12 27 9 1 6 160 740
IRIS 250 9,7 22 2 0 1 0 320 10 163 160 790
IRIS 250-D 17,2 22 2 0 1 0 320 10 163 160 790
IRIS 300 12, 27 300 180 420 113 173 166 840
IRIS 300-D 17,2 27 300 180 420 113 173 166 840
Fig. 3 - Dimensions of the machine

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SECTION 2
General safety rules
2.1 SAFETY
WARNING
The user must train the personnel about the
risk of injuries, about the safety devices
installed in order to safeguard the operator
and about the general accident-prevention
rules established by the laws in force in the
country where the machine is installed.
Operator safety is of prime importance for
machine manufacturers. When creating a
new machine, manufacturers do all in their
power to foresee all the potentially dangerous
situations and naturally install all the
necessary protections. However, the number
of accidents caused by careless and inexpert
use of machines remains high. A distracted,
thoughtless and over-confident attitude often
leads to accidents, as can tiredness and
drowsiness.
It is therefore obligatory to read this manual
carefully, particularly the safety rules, and to
take great care when carrying out operations
that are particularly dangerous. This manual
must accompany the machine if it is moved to
another site or resold, until the time it is
completely dismantled.
The Man fact rer declines all liability for
fail re to comply with the safety and
accident-prevention reg lations.
WARNING
Pay attention to this symbol when it
appears in the man al. It highlights a
possible danger.
THERE ARE THREE HAZARD LEVELS:
- The word «DANGER» signals the
maximum danger level and warns that
unless the described operations are carried
out correctly, they will ca se serio s
inj ries, death or long-term health risks.
- The word «WARNING» warns that unless
the described operations are carried out
correctly, they co ld ca se serio s
inj ries, death or long-term health risks.
- The word «CAUTION» warns that unless
the described operations are carried out
correctly, they co ld ca se damage to
the machine and/or the person.
2.1.1 TERMINOLOGY USED
• USER: The user is the person, body or
company who/that has purchased or rented
the machine and who/that intends to use it for
the purposes for which it has been designed.
• DANGER ZONE: Any zone inside and/or
near a machine where the presence of an
exposed person could put the safety and
health of that person at risk.
• EXPOSED PERSON: Any person who is
wholly or partly in a danger zone.
• OPERATOR: The person or persons
charged with installing, setting at work,
adjusting, servicing, cleaning, repairing and
transporting a machine.
• SPECIALIZED PERSONNEL: These are
those persons who have been specially
trained and authorized to carry out
maintenance work or repairs requiring
particular knowledge of the machine, the way
it works, the safety devices, the way of acting,
who are able to recognize the dangers
deriving from using the machine and are
therefore able to avoid them.
2.2 SAFETY DECALS
All possible measures were taken when the
machine was built in order to safeguard the
operators. Despite all this, there may still be
further residual risks that are indicated on the
machine my means of decals. This decals
(pictograms), illustrated in Fig. 4, are affixed
to the machine and point out the various
potentially unsafe and dangerous situations in
a schematic form.

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9
Keep the decals clean and replace them
immediately if they detach or become
damaged.
With reference to Fig. 4, read the following
explanations carefully and memorize them.
1) Risk of inj ries to the limbs. Take care
of the moving transmission belts when the
cover is raised.
2) Danger of high voltage. Do not work on
the electrical equipment unless the
machine has been disconnected from the
electric power source.
2.3 CLOTHING
WARNING
- Wear appropriate clothing. Do not wear
wide or loose clothing, necklaces, scarves,
ties, etc., which could become caught up in
moving parts. Long hair must be tied back.
Fig. 4 - Positions of the safety decals

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2.4 ECOLOGY AND POLLUTION
WARNING
- Products used for cleaning purposes must be
disposed of in compliance with the laws in
force in the country where the machine is
used.
- Have packaging materials and processing
waste disposed of by specialized companies
authorized to collect and dispose of
differentiated waste.
- If the machine is dismantled, comply with the
anti-pollution laws in force in the country of
use.
2.5 SAFE USE OF THE MACHINE
DANGER
- It is absolutely forbidden to operate the
machine or have it operated by persons who
have not read and understood the instructions
in this manual, or by incompetent persons or
those who are not in good conditions of health.
- Make sure that all the safety devices are in
perfect conditions before starting up the
machine.
- Become familiar with the controls and their
functions before beginning work.
- It is absolutely forbidden to remove or tamper
with the safety devices.
- The area in which the machine is used must
be considered a «danger zone», especially for
persons who have not been trained to use the
machine.
- Before starting the machine, make sure that
there are no persons or animals in the
surrounding area.
- When a person is in a «danger zone», the
operator must act immediately, stop the
machine and possibly have the person in
question move out of the zone.
- It is absolutely forbidden to leave the machine
unattended when it is operating.
- It is absolutely forbidden to touch moving
parts or get between them.
- Before proceeding with any of the servicing
operations, disconnect the machine from the
power source and wait until all the moving parts
have come to a complete stop.
2.6 SAFE MAINTENANCE
WARNING
- Periodically check to make sure that the
overall machine and the safety devices are in
perfect conditions.
- It is obligatory to wear protective clothing,
work gloves to safeguard against cuts and
non-slip footwear with hard toe-tips when
servicing and repairing the machine.
- Spare parts must conform to the
specifications defined by the Manufacturer.
Only se gen ine spares.
- Do not proceed with any servicing or cleaning
work unless the machine has been
disconnected from the electric power source.
- Strictly comply with the maintenance
instructions described in this manual. Have any
damaged or worn parts replaced by specialized
personnel.
- This instr ction man al m st be read,
memorized and kept thro gho t the entire
life of the machine.

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SECTION 3
Transport and installation
3.1 TRANSPORT
If the machine must be transported for a long
distance, it can be easily loaded on to a truck
or other means of transport.
The dough mixer is usually supplied packed,
strapped, palletized and in a vertical position.
This means that the machine can be easily
moved, loaded or unloaded with a normal lift
truck. If the machine is moved without pallets, it
must be harnessed as illustrated in figure and
lifted with a crane.
DANGER
Before proceeding with the lifting
operations, make s re that any mobile parts
of the machine are sec rely locked in place.
The lifting and transporting operations can
be very dangero s nless they are carried
o t with the tmost care. Have anyone who
is not directly involved in the work move
well away; clear and delimit the area where
the operations will take place; make s re
that the lifting and handling means sed are
in perfect conditions and fit for the job; do
not to ch hanging loads and keep at a
safety distance away; the loads m st not be
raised more than 20 centimeters from the
gro nd when they are transported. Make
s re that the work area is clear and that
there is an «escape ro te», i.e. a safe, free
area that can be rapidly accessed to the
operators sho ld the load drop. To prevent
the load from shifting, the s rface on to
which the machine is loaded m st be
perfectly horizontal.
Once the machine has been transferred to the
means of transport, make sure that it remains
well locked in position and is unable to move.
Fix it firmly to the surface on which it has been
placed using taut ropes to prevent it from
shifting in any way.
3.2 INSTALLATION
After having made sure that the machine is in a
perfect condition, it can be positioned.
Bear the following details in mind when
choosing the definitive position for the
machine:
- choose a place that is free from damp and
sheltered from the weather conditions;
- the surface on which the machine is placed
must be perfectly flat, non-slip and with a load
capacity fit to bear the weight of the machine;
- allow for a clear, uncluttered work area around
the machine;
Fig. 5 - Lifting t e doug mixer.
- the place in which the machine is positioned
must be supervised or closed, to prevent it from
being accessed by children or persons who have
not been trained to use it;
- the installation site must possess good lighting
that complies with the relative standards;

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12
- the position must be near an electric panel
with a magnetothermic circuit-breaker;
- the voltage rating of the electricity main must
correspond to the value given on the
identification plate (Fig. 2);
- the electricity main must be equipped with a
grounding circuit that complies with the relative
standards;
- the ambient temperature must be between
+10° and +40°C;
- the machine must not be installed in a work
environment where there is an explosive
atmosphere.
3.2.1 POSITIONING
After the machine has been positioned and
bearing in mind the indications given in section
«3.2 Installation», proceed by ensuring that the
machine stands in a firm and stable way.
The mod. IRIS dough mixer has three wheels,
of which the front one is a castor (7 Fig. 1),
allowing it to be easily moved. After having
complied with the instructions given in the
previous section, lock the machine in the
required position and level it by means of its
adjustable feet (6 Fig. 1).
Fig. 6 – Plug
3.2.2 ELECTRICAL CONNECTION
DANGER
The machine m st only be connected to the
electricity main by specialized and a thorized
persons.
It is advisable to cons lt the wiring diagram of
the machine before proceeding.
Check the voltage rating of the electricity main in
the room and make sure that it corresponds to
the operating voltage of the machine’s electrical
system.
After having made the correct connection, start
the machine and make sure that the bowl turns in
the direction indicated by the arrow (18 Fig.1). If
this is not the case, invert two of the phases in
the plug (R and S - Fig. 6).
DANGER
If yo are do btf l abo t the machine’s safety
systems, stop the machine and check them.
Yo may contact yo r nearest a thorized
assistance service, the importer or the
Man fact rer if necessary.
3.3 GENERAL INSPECTION
WARNING
Caref lly check to make s re that the machine
is efficient and that safety devices are
perfectly f nctional before setting the do gh
mixer at work. Make s re that there are no
damaged components, that all the parts have
been installed correctly and that they f nction
perfectly.
Unsafe safety devices or damaged parts m st
be repaired or replaced by specialized
personnel or by an Assistance center
a thorized by the Man fact rer.
SECTION 4
Instructions for use

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13
4.1 PRIOR TO USE
ATTENZIONE
It is advisable to remind the operator that
he is obliged to read and nderstand the
instr ctions in this man al, partic larly
the ones in «Section 2» dedicated to
safety, before proceeding with normal se
of the machine. The operator m st also
check to make s re that the machine is in
order and that any parts liable to wear and
deterioration are perfectly efficient.
DANGER
ALL THE ASSEMBLY, DISASSEMBLY
OPERATIONS AND ADJUSTMENTS MUST
ONLY BE CARRIED OUT AFTER THE
MACHINE HAS BEEN SWITCHED OFF
(MAIN SWITCH IN THE OFF POSITION)
AND AFTER IT HAS BEEN
DISCONNECTED FROM THE
ELECTRICITY MAIN.
4.1.1 CONTROL PANEL
(version 80-250)
The entire operating cycle of the dough mixer
is controlled by means of the control panel,
the voltage of which is reduced to 24 Volts
(Fig.7).
1) «First speed» timer. Used to select the
required time setting (in minutes).
2) Emergency b tton. Press this button to
disconnect the power source and stop all
the functions of the machine. The cycle
can be reset by turning the button and
then pressing the START button.
3) «Second speed» timer. Used to select
the time required (in minutes) to complete
the work cycle and obtain a homogeneous
dough that corresponds to the
specifications required by the operator.
4) Bowl rotation reversal selector.
Selector with two positions, plus neutral.
Reverses the rotation direction at the slow
speed only.
5) START b tton with indicator light.
Press this button to begin the work cycle.
When on, the indicator light shows that
the machine is powered.
6) Bowl rotation b tton. This button stops
the dough tool from turning and can
operate in both the continuous and
intermittent mode. By keeping the button
depressed, the bowl will turn. If it is
pressed intermittently, the bowl will turn to
a sufficient extent to allow the operator to
empty it.
7) Second speed c t-o t switch. Allows
dough to be made using the slow speed
only. Turn the switch towards the right to
inhibit the second speed.
4.1.2 CONTROL PANEL
(version 30-40)
Consult the instructions in the previous
paragraph (4.1.1) in relation to points 1), 2)
and 3).
Points 4), ), 6) and 7) are not pertinent to
this model of the machine.
8) Start b tton to start the machine.
4.2 USE
WARNING
The operator m st s pervise the area in
which the do gh mixer is installed so as
to prevent na thorized persons from
accessing the so-called danger zones
whilst the machine is working. He m st
also keep the area constantly clean and
free from obstacles.

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14
Fig. 7 - Control panel
4.2.1 HOW TO START THE DOUGH
MIXER
DANGER
IT IS ABSOLUTELY FORBIDDEN TO
USE THE MACHINE WITHOUT ITS
GRILLE AND PROTECTIVE CASING.
After having made all the adjustments, start
the machine and begin work.
1) Place the required quantities of flour,
water and any other ingredient required,
into the bowl.
2) Plug the machine into the electricity main,
then turn the main switch (Fig. 8) to the
ON position.
3) Now select the mixing times (if these have
not yet been memorized) by means of the
two timers (1 and 3 Fig. 7).
4) Press the START button - ( Fig. 7) in
models 80-2 0, or (8 Fig. 7) in models 30-
40 - in order to start the operating cycle. If
the operator has selected the dough
mixing time settings in timer (1 Fig. 7) and
timer (3 Fig. 7), the machine will terminate
the work cycle during which it will
automatically switch from the first to the
second speed.
After the automatic stop, the mains voltage
is not disconnected and the machine is
ready for another batch of dough.
4.2.2 HOW TO TAKE PRODUCT FROM
THE BOWL
Proceed in the following way to take product
from the bowl:
1) Turn the selector (4 Fig. 7) in the opposite
direction to that of operation and then press
the START button.
The dough tool will turn in the opposite
direction, thus bringing most of the dough
towards the center of the bowl.

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1
Fig. 8 - Mac ine’s main switc wit two
positions (Fig.8), ON - OFF. T e door t at
accesses t e electric panel remains locked in
t e ON position
2) Lift the protective grille (4 Fig. 1) to
immediately stop the motors.
3) Now start to remove the dough.
The button (6 Fig. 7) allows the operator to
turn the bowl continuously or intermittently
and to access the part with the dough in
an easier way.
After this and if there are no other operations
to carry out, stop the machine in the
following way:
- press the red stop button (2 Fig. 7);
- turn the switch on the machine (Fig. 8) to
the OFF position;
- disconnect the machine from the electric
power source by means of the main switch
on the electricity main, prior to the
machine itself.
4.3 EMERGENCY STOP
Whenever the operator decides that the
machine must be blocked and prevented from
operating, he can raise the protective grille or
press the EMERGENCY button (red) on the
control panel. This latter action deactivates
the electric power supply.
4.4 CLEANING AFTER USE
WARNING
Disconnect the machine from the electric
power so rce before beginning to clean
the machine.
Remove any wet or dry residues and flour
dust with a slightly damp cloth.
WARNING
Never se contin o s jets of water and
avoid splashing water indirectly in order
to clean the floor aro nd and nder the
machine. Once a month, remove the cover
and clean off the d st and resid es from
the transmission with a vac m cleaner.
Once the do gh making and cleaning
operations have terminated, always make
s re that the electric power so rce has
been disconnected.

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16
SECTION 5
Maintenance
5.1 ROUTINE MAINTENANCE
This range of dough mixers with fixed bowls
does not require any particular maintenance
work. However, tip-top performance and a
perfectly efficient machine are only obtained by
methodic and regular compliance with the
following regulations.
WARNING
The servicing, adj sting and preparation
jobs m st always be carried o t when
the machine is off and disconnected
from the electric power so rce.
- Maintenance work and adj stments may
only be carried o t after the electric
power so rce has been disconnected by
t rning off both the mains circ it-breaker
and the machine’s main switch (Fig. 8).
The ro tine maintenance operations can
be carried o t by the operator, while
more complex jobs m st be done by
specialized and a thorized personnel.
- The general condition of the machine
m st be inspected and the machine itself
cleaned daily, or as freq ently as
possible.
- Excessively worn or broken parts m st
be replaced immediately.
- The wiring diagram, which is s pplied
together with the machine, m st be kept
with care and cons lted whenever
necessary. As soon as the machine is
received, it is advisable to make a copy
of the diagram and keep it with the other
doc ments.
5.2 BELT TRANSMISSION
The belts normally wear in an almost uniform
way, even though this wear may take place at
different times in one transmission as regards
the other and is bound to the consistency of the
dough as well as the number of hours that the
machine is used each day.
Every so often, the operator must therefore
check the degree of wear on all the belts in the
machine. Remember that if replacements are
required, the Manufacturer recommends
replacing all the belts at the same time
(complete replacement of each set of belts).
Fig. 9 - Doug tool belt tensioning
1) Belt stretc er fixing screws (4). - 2) Motor belt tension adjuster screw. - 3) Motor fixing screws (4).
- 4) Doug tool belt tension adjuster screw.

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5.2.1 DOUGH TOOL TRANSMISSION
If the dough tool seems slow to turn, the
transmission belts may have loosened or be
broken. Proceed in the following way to
adjust and/or replace the belts:
1) Using a pipe wrench, unscrew the central
nut that fixes the cover to the machine (2 Fig. 1).
Raise the cover, paying particular
attention to the electric cables of the control
panel, which cannot be detached.
2) Loosen the four screws (1 Fig. 9) at the
base of the belt stretcher. Use the screw of
the belt stretcher (4 Fig. 9) to adjust the
tension of the transmission pulley/dough tool
belts.
Fig. 10 - Electric panel of IRIS 80-250
1) T ermic relay reset button. - 2)
Magnetot ermic switc es and fuses
Fig. 11 - Components of t e electrical system
of IRIS 30-40
1) T ermic relay reset button. - 2)
Magnetot ermic switc es and fuses
3) Retighten the four screws (1 Fig. 9).
4) Loosen the four screws (3 Fig. 9) on
the motor bearing plate. Use the screw of the
belt stretcher (4 Fig. 9) to adjust the tension
of the motor pulley/transmission belts.
) Retighten the four screws (3 Fig. 9).
6) Fit the upper cover back in place and
fix it with the relative nut (2 Fig. 1).
To replace any broken belts, remove the
cover and loosen the four screws that fix the
belt stretcher, as described previously, then
replace the broken belts. Always refer to the
spare parts tables which show the location of
the various different components. At the end
of the operation, tighten the belts in the
correct way and fit the upper cover back in
place.
5.2.2 BOWL TRANSMISSION
If the bowl seems slow to turn, the
transmission belts may have loosened or
be broken. Proceed in the following way to
adjust and/or replace the belts:
1) Turn the belt tightening knobs (24 Fig. 1)
positioned at the base of the machine (2
knobs in models 80-2 0, 1 knob in models
30-40).

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Screw clockwise to tighten the belts,
unscrew to loosen or completely annul the
belt tension.
To replace any broken belts, first loosen them
with the two knobs (24 Fig. 1), remove the
side inspection panel (8 Fig. 1), then
replace the broken belts. Always refer to
the spare parts tables which show the
location of the various different
components. At the end of the operation,
tighten the belts in the correct way and fit
the side inspection panel back in place
with the relative four screws.
5.3 STORAGE
If the machine is to remain idle for a long
period of time, it must first be thoroughly
cleaned, the parts liable to wear must be
lubricated and the entire machine covered
with a plastic cloth.
If these operations are carried out with care, it
will be all to the advantage of the user, who
will find the machine in an excellent condition
when it is required for use once more.
Comply with the laws in force in the country
where the machine is used when it comes to
the way the products used for cleaning and
servicing the machine are used and disposed
of. Also comply with the recommendations of
the manufacturers of such products.
WARNING
If the machine is dismantled, comply with
the anti-poll tion laws in force in the
co ntry of se.

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5.4 TROUBLESHOOTING
The following tables list the main faults, along with the relative causes and suggested remedies, to
which the machine may be subjected as it operates (NOTE: some of the indications are not
applicable to models 30-40).
Any operations required must be carried out by expert and authorized technicians and only after
having examined this manual.
FAULTS PROBABLE CAUSES POSSIBLE REMEDIES
The machine stops during
the work cycle but the green
starter indicator light
remains on.
The bowl is too full or the
voltage supply from the
electricity main is irregular.
Open the electric panel door (21
Fig. 1) and make sure that the
thermic relays and fuses function
correctly. If necessary, re-activate
the thermic relay by pressing the
button (1 Fig. 10). If the machine still
fails to operate, contact the Retail
Outlet’s Assistance Service.
The dough tool slows down
while the dough is being
mixed.
The dough tool’s transmission
belts have slackened or are
broken.
Tighten or replace the belts as
described in paragraph « .1.1
Transmission belts».
The bowl slows down while
the dough is being mixed.
The bowl’s transmission belts
have slackened or are broken.
Tighten or replace the belts as
described in paragraph « .1.1
Transmission belts».
When the START button is
pressed ( Fig. 7 ), the
machine starts operating
but stops as soon as the
button is released.
The timer (1 Fig. 7) or the
relays of the electric panel
(Fig. 10) are dirtied with flour
or out of service.
Direct a jet of air (not too strong) on
to the timer and relays so as to
clean the contacts. If the machine
still fails to start, replace the
defective component.
When the START button is
pressed ( Fig. 7), the
dough tool turns while the
bowl remains at a standstill.
Make sure that the bowl’s
mode selector (4 Fig. 7)
functions correctly. It could be
out of service.
Replace the selector if it is
defective.
The machine fails to
automatically switch from
the first to the second
speed.
The speed selector (7 Fig. 7)
is in the second speed
inhibited position.
The selector is defective.
Not enough power from the
electricity main.
Check the position of the second
speed inhibiting selector (7 Fig.7).
Replace the selector.
Check the power installed in the
bakery. Boost the power if
necessary.