Sigma SFG User manual

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Via Artigianato, 85 – 25030 Torbole Casaglia (BRESCIA) – ITALY
Tel [phone] – Fax [phone]
www.sigmasrl.info
INSTRUCTION MANUAL
SHEETER MODEL SFG
INSTRUCTION MANUAL: this instruction, user’s and servicing
manual gives the directions necessary for transport, setting at work,
use and servicing of this machine and must be read before any of
these operations. This manual must be read not only by the
technicians assigned for servicing, but also by the machine operators;
it is important for them to know how to carry out their functions
properly. This manual is an integral part of the machine and must be
kept in a suitable place so as to safeguard its integrity and make it
possible to consult it during all machine life.
Compliance with the rules guarantees proper operation, safety and
operating saving of this machine as well as operators and users’ safety.

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CONTENTS:
1.0) SYMBOLS PAGE … 3
2.0) DESCRIPTION OF THE MACHINE PAGE … 4
3.0) IDENTIFICATION PAGE … 4
4.0) OPERATIVE CONDITIONS PAGE … 5
5.0) DIMENSIONS AND WEIGHTS PAGE … 5
6.0) TRANSPORT PACKAGING - MOVEMENTS PAGE … 5
6.1) PACKAGING DIMENSIONS PAGE … 5
6.2) LIFTING REGULATION BY LIFT CARRIAGE PAGE … 5
6.3) PLANE MOVEMENTS PAGE … 6
6.4) LIFTING BY MEANS OF BELTS PAGE … 6
6.5)PACKAGING PAGE…6
7.0) ASSEMBLY PAGE … 6
8.0) OPERATING INSTRUCTIONS PAGE … 7
8.1) INSTRUCTIONS TO ASSEMBLE THE SCRAPERS PAGE … 7
8.2) INSTRUCTIONS FOR THE PROTECTION GRID PAGE … 7
8.3 BELT ENGAGEMENT PAGE … 7
8.4) MACHINE OPERATION: CONTROLS PAGE … 8
8.5) SAFETY WARNINGS PAGE … 8
8.6) EARTHING PAGE … 8
8.7) ELECTRIC CABINET, GENERAL REQUIREMENTS PAGE … 8
8.8) FIRST STARTUP PAGE … 9
9.0) OPERATION PAGE … 9
9.1) OPERATION PAGE … 9
9.2) END OF THE JOB PAGE …10
9.3) SAFETY DEVICES PAGE …10
10.0) SERVICING PAGE …10
10.1) USE DIRECTIONS AND SERVICING PAGE …10
10.2) ROUTINE SERVICING PAGE…10
10.3) CLUTCH SIDE PAGE …11
10.4)MOTORSIDE PAGE…11
10.5) POSSIBLE FAILURES AND REPAIRS PAGE …12
10.6) EXTRAORDINARY SERVICING PAGE …12
10.7) WIRING DIAGRAM PAGE …12
11.0) REQUEST OF SPARE PARTS PAGE …13
11.1) SFG EXPLODED DIAGRAM – TABLE 1 PAGE… 13
11.2) SFG EXPLODED DIAGRAM – TABLE 2 PAGE… 14
11.3) LIST OF THE MAIN COMPONENTS PAGE… 15
12.0) MAIN MATERIALS PAGE …16
13.0) ANALYSIS OF RISKS, PROHIBITIONS AND OBLIGATIONS PAGE …17
14.0) WASTE DISPOSAL PAGE …17

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1) SYMBOLS: They are used to define the qualification of the person who has to carry
out a particular operation.
Symbol Description Features
OPERATOR A healthy person who has been taught how the
machine operates and who has read and
understood this user’s and servicing manual.
ELECTRICIAN
SERVICER A healthy person qualified as an electrician and who has read and understood this user’s and
servicing manual
MECHANICAL
SERVICER A healthy person qualified as a mechanical servicer and who has read and understood this
user’s and servicing manual.
SIGMA SERVICING
Tel. [phone]
Fax [phone]
•Requests for the manual updating.
•Telephone help concerning operation.
•Telephone help concerning startup or
machine failures
•Requests for spare parts.
•Product repairs.
•Machine overhaul.
•Actions at the place.

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2.0) DESCRIPTION OF THE MACHINE
2.1) GENERALITIES: The SFG puff pastry processors are rolling machines to be used in
catering, bakery and gastronomy laboratories to prepare foodstuffs. They must fine down
food pasta layers with butter, margarine or eggs (special version) in order to obtain pastry
in the thickness desired. The gradual mixture thinning is executed by a couple of rollers
gradually adjustable in height until the finished product is obtained. The belts located on
the sides of the rollers drag the mixture, one feeds the rollers, the other removes the
material thinned out by the same. Since the thinned out material is longer than the one to
be fined down, the roller dragging speed of removal must be higher than the feeding one.
Since the thinned out mixture is once on the right belt and once on the left one, the
operator must reverse motion at every single passage and, of course, the relevant speeds
of the belts reverse automatically. The operator chooses dragging direction by a lever or a
pedal, according to the machine type; the gradual thinning of pasta is executed by means
of a lever used by a toothed crack that keeps the position desired. When the mixture gets
so long and cannot stay on the belt it is possible to drop it on the special trays or to roll it
up on the rolling pins placed at the end of the rollers.
3.0) IDENTIFICATION. A plate similar to the one below identifies the machine; it shows
the features concerning machine types, serial numbers, operating frequency, power,
electric features and the year of construction.
Pedal and lever to
change roller
direction.
Roller adjusting lever
Belt and relevant rolling
pins and trays

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4.0) OPERATIVE CONDITIONS: Local conditions: the machine requires to be
installed in a lighted, airy building, on a compact and
flatten support. Temperature ranging from 5 to 40°C;
humidity not over 50% at 20°, or not over 90% at 40°C.
Lighting: lights available for the operator must comply
with the type of work being carried out, according to the
general lighting, in compliance with the regulations in force.
Vibrations: when operations are properly executed, vibrations cannot provoke dangerous
situations.
Acoustic emissions: <75 dbA – normal use.
Electromagnetic environment: this machine has been conceived to operate in an
electromagnetic industrial environment.
5.0) DIMENSIONS AND WEIGHTS
Model kW Belt dim. Opening dim. in
mm Closure dim. in mm weight kg Packaging
SFG500B 0,55 500x700 2035x612x955 750x825x955 142 1340x820x1200
SFG500T 0,55 500x700 2035x1270x955 750x1482x955 170 1340x820x1500
SFG500TM 0,55 500x1180 2990x1270x955 1100x1920x955 185 1340x820x1500
SFG600B 0,75 600x700 2035x612x1055 750x825x1055 200 1340x820x1200
SFG600BM 0,75 600x1180 2990x612x1055 1100x1260x1055 210 1340x820x1500
SFG600TM 0,75 600x1180 2990x1270x1055 1100x1920x1055 232 1340x820x1500
SFG600TMM 0,75 600x1600 3840x1270x1055 1440x2330x1055 260 1340x820x2000
SFG600TL 0,75 600x1180x1600 3415x1270x1055 300 1340x820x2000
6.0) TRANSPORT PACKAGING - MOVEMENTS
6.1) PACKAGING DIMENSIONS: the box on pallet measures A=1340 - B=820 - H= refers
to the table
6.2) LIFTING REGULATIONS BY MEANS OF LIFT CARRIAGE:
•Make sure the means of lifting is suitable for the charge.
•Enlarge the lifting forks at the maximum.
•Make sure that the lifting forks are out of the pallet when operating.
•During operations, keep the load as nearer as the floor as possible.

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6.3) PLANE MOVEMENTS : The machine is equipped
with two wheels; after unpacking it and removing the
pallet fastenings, it can be carefully set on the floor and
moved to a plane and smooth surface. The belts are in
the box, but not assembled; their transport can be done
by hand.
6.4) LIFTING BY MEANS OF BELTS
The machine can be lifted by means of a couple of strong
belts located at a distance of 80 cm and positioned as
shown in the drawing.
Lifting regulations by means of belts:
•Make sure the means of lifting is suitable for the
charge.
•Make sure the charge is properly hooked.
•Operate when the area is empty.
•Be properly dressed.
6.5) PACKAGING: The machine must be kept in a closed
and covered place, safe from dust and atmospheric
agents, temperatures ranging from –20 and +40°C,
humidity not over 90%. The place must be in safe and
hygienic conditions being used for alimentary purposes.
7.0) ASSEMBLY
The machine with socle must rest on the floor. Two
wheels are fitted with a special locking pedal to keep it
positioned. The machine without socle must rest on a
table or on a strong and stable trestle.
An electric input line must be installed next to the
machine, this line must feature the wire section of at least 1.5 mm2, fitted with lockpin and
circuit breaker. Make sure that voltage V and frequency Hz are the ones shown on the
identification plate of the machine.
Note: A differential unit featuring a 0.03A (Ampere) sneak current must be connected
upstream the line.

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8.0) OPERATING INSTRUCTIONS
The belts must be assembled and the protection grid and the rollers lowered otherwise the
safety systems prevent the machine from working.
DO NOT REMOVE OR RIG THE ELECTRIC AND MECHANICAL PROTECTIONS AND
SAFETIES OF THE MACHINE.
8.1) INSTRUCTIONS TO ASSEMBLE THE SCRAPERS:
The scrapers are already housed on delivery. All
scrapers can be installed in any position; to remove
them for their cleaning, perform the following
operations:
Release the scraper from contrast spring B
Press spring A and release the scraper from the
opposite housing
8.2 ) INSTRUCTIONS FOR THE PROTECTION GRID.
The protection grid must be lowered in order to
operate. By lifting it up, it will position in a fixed high
place. To reset it in its working position, press spring M in cross direction (refer to the
arrow) and while keeping it pressed, lower the grid. DO NOT FORCE since it would
endanger normal working operation of the machine.
8.3) BELT ENGAGEMENT:
Take the belt in both hands and insert
diagonally pivot P of the belt in its special
housing S2 and press it on the spring. Insert
the milled pivot C of the belt into housing S1
on the machine. If the millings do not match,
rotate pivot C until the two housings fit into
place. By releasing pressure on the spring of
pivot S2, the belt will lock in its housing. The
belt can rotate around the axis C-P; in order
to set it in its operating position, just move the
special diagonal rod A close to the socle.

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8.4) MACHINE OPERATION: CONTROLS
1) Master circuit breaker with mains signal lamp.
2) Control lever and motion reverse.
3) Control pedal and motion reverse (upon request).
4) Adjusting lever for fining down.
5) Trigger for lever 4
6) Ratchet of lever 4
8.5) SAFETY WARNINGS: Space around the machine must be properly lighted,
clear and clean.
Stuff must wear appropriate clothes for operating the
machines, antislip shoes (if necessary protected on toe),
sleeves properly buttoned up on wrists, no dangling
clothes such as ties, napkins, ripped clothes, open jackets, etc, to avoid any risk of getting
tangled.
8.6) EARTHING: it is compulsory to check proper working of the machine
earthing. A faulty connection can cause dangerous accident, even death.
8.7) ELECTRIC CABINET, GENERAL REQUIREMENTS :
Unauthorised personnel cannot open the electric cabinet. Always watch over
the machine when the electric parts are exposed. Machine operation when the
electric parts are exposed is allowed only when specialised personnel is
present, only for the short period necessary for possible repairs and under the
responsibility of the user.

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8.8) FIRST STARTUP:Make sure the protection grids are lowered before any operation
when the current is on. Just press button 1 to
start the machine , the closure of the circuit is signalled
by the lighted lamps.
Lower lever 2 as shown
in the figure to test
correct connection, the belt must move to
the direction of the arrow. Conversely, reverse the couple
of wire in the current plug. Carry out the same test if the
machine is fitted with pedals. Eventually test the adjusting
lever of the roller, to approach them, just move lever 4 from
the right to the left, even using your palm smoothly. A
special crack consents movement in a single direction, to
reset it in its open position, press trigger 5 that releases
the crack and consents free movements of the lever.
When the thickness of pasta has been defined, it can be
stored in the memory by means of ratchet 6; this one
prevents the adjusting lever from moving forward the point
established. Make sure the machine is stable and the belts
and scrapers are properly inserted. Make also sure
that the safety microswitches controlling the protection grids work correctly,
when you lift them the machine must stop. The machine is operational.
9.0) OPERATION
9.1) OPERATION. This machine is normally used for the production of puff
pastry. Refer to our trade department for different employments: a set of special
belts is available for grease pastry or others.
To fine down pastry, you must put on the belt a block of pasta composed of
alternate layers of butter or margarine and outside the flour dough. If necessary, it is also
important to dust some flour on the areas in contact with the blocks and the belts and
rollers; in the central area of the crown there’s a special housing for this purpose. Adjust
the rollers so as to reduce thickness by 10-15 % and start the machine. The block will be
dragged towards the rollers and reduced by them; the thickness is reduced and
consequently it will be enlarged and lengthened.
When all the pastry is out of the rollers, the motion must be reversed by means of lever 2
or pedal 3 and, at the same time, the rollers must be tighten to carry out another fining.
The puff pastry becomes wider and wider as the process goes on; for this reason, at the
end of any belt there are two
trays to carry pasta. When they
are full, the rolling pins must be
used to roll up pasta.

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9.2) END OF THE JOB: clean the machine by removing the deposits on rollers
and belts. Disassemble the scrapers and clean them with the greatest care: the
machine works better if these parts are in good conditions.
9.3) SAFETY DEVICES: The machine is fitted with a set of safety devices that safeguard
the operator.
These must not be rigged or cut out.
Check their proper operation before starting the
machine.
•Master circuit breaker: it cuts off electric supply; it is essential to pull out the plug
from the electric cabinet to carry out mechanical servicing.
•Thermal switch: it cuts off electric supply if the electric motor overheats
•Fixed protections: all guards fastened with screws must not be removed; authorised
personnel only can perform it for servicing.
•Mobile protections: the protection grid movement activates microswitches that
prevent the machine from operating if the mechanical elements are not properly
positioned.
10.0) SERVICING
10.1) USE DIRECTIONS AND SERVICING
Experience teaches that the first and most efficient way of servicing is the machine
cleanliness. It is advisable to use a plastic spatula and a wet cloth to clean the machine
and to remove any deposits of pasta. External surfaces can be easily cleaned with spray
neutral degreasers (Marseilles soap).
The machine is vertically protected against small water spills, but cannot be washed by
means of jets of water.
10.2) ROUTINE SERVICING
NEVER SERVICE OR CLEAN THE MACHINE WHEN THE CURRENT IS CONNECTED.
The machine does not need any particular servicing. Check belt
wear after the first three months of working.

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10.3) CLUTCH SIDE
10.4) MOTOR SIDE
To adjust tension of
the belt, unscrew the
motor bolts and lever
them by means of a
screwdriver. Screw on
the motor bolts,
assemble the guard
and test the machine.
Electric
system faults: remove
the gear protection
guard and refer to the
chart to check
operation; close the
guard and test the
machine.
By disassembling the guard from
this side the electric motor is
accessible, the main driving belt
and the driving chain to the clutch
from the other side.
The clutch, the
speed change unit of the
belts and roller adjustment
are accessible by
disassembling the guard
from this side
Grid and belts micro faults:
remove the gear protection
guard, check its working
condition, close the guard and
test the machine.

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10.5) POSSIBLE FAILURES AND REPAIRS
OPERATING FAULTS
POSSIBLE CAUSES REPAIRS
The signal lamp does not light up
when you press the master circuit
breaker
1) The plug is not properly inserted
or its wires are disconnected.
2) The signal lamp on the on/off
button is fused
1) Check the
connection.
2) Replace the
lamp.
The machine does not start when
you press the control lever or the
pedal.
1) The protection grid is open
2) Belts are not in their proper
position.
3) Irregularity on safety
microswitches.
1) Rotate it and
close it.
2) Check if the
position is
correct.
3) Replace or control the
microswitches.
Light intermittent noise. 1) Lack of transmission chain
lubrication.
1) Grease chains.
Continuous noise. 1) Check efficient working of the
bearings.
1) Replace the
bearings.
10.6 EXTRAORDINARY SERVICING:
Please refer to SIGMA Srl authorised personnel to carry out
actions that are not specifically mentioned in this manual.
Refer to our servicing department to work at the place or to
service it at our premises to replace the motor, the drive,
electronic cards and important mechanical parts or following
machine falls.
10.7 WIRING DIAGRAM
A

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11. 0) REQUEST OF SPARE PARTS: Ask SIGMA S.R.L. servicing department for spare
parts: tel. [phone] – fax [phone]
11.1) SFG EXPLODED DIAGRAM – TABLE 1

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11.2) SFG EXPLODED DIAGRAM – TABLE 2

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11.3) LIST OF THE MAIN COMPONENTS
REF. # CODE # DESCRIPTION QUANTITY
01 01174037 Handle 1
02 14002302 GB 48 FP M8 wing nut 1
03 01174041 Handle spacer 1
04 14002609 ABS chromium-plated crown cover 1
05 15001503 Bronze bush 5 – 9 – L9 1
06 01174038 Lever for hooking the graduated sector 1
07 08174040 Handle spring 1
08 01174036 Graduated handle sector 1
09 03174003 Guard on clutch side 1
10 01072047 Plate 1
11 01072045 Clutch flange 2
12 01072044 Clutch pinion 2
13 12000002 1 / 2” x 1 /8” simple chain, 33 pitches 2
14 01072049 Belt gearwheel 2
15 01072039 Nut 1
16 15000507 18x25x28 self-lubricating bush 2
17 01072048 Clutch pinion 2
18 12000001 1 / 2” x 1 /8” simple chain, 33 pitches 2
19 01072040 Clutch disk 1
20 01174066 Brake plate with lining 1
21 25001301 83.161.1 + 161E microswitch 4
22 01174061 Screened micro cam 2
23 03174005 Motor guard and basin 1
24 03174004 Motor side guard 1
25 01000000 8x30 flat head pivot 2
26 25009027 TBF 010 SC5 slim signal lamp 1
27 25003045 A 432 N3 circuit breaker 1
28 08072075 Lower scraper screw 6
29 01174043 SFG 600 scraper core 4
01174086 SFG 500 scraper core 4
30 08091045 Scraper screw 8
31 01174045 Scraper screw pivot 8
32 01174044 SFG 600 scraper 4
01174087 SFG 500 scraper 4
33 13000014 Radial bearing, mod. 6203 2RS 4
34 01174029 Hub for left motor roller 2
35 06001009 SFG 600 NR11 2360x600 belt 2
06001008 SFG 500 NR11 1400x500 belt 2
36 01072093 SFG 600 rolling-pin 2
01072092 SFG 500 rolling-pin 2
37 01174025 Belt support 4
38 14002008 VP 30 M6x30 lobe handwheel 4
39 01174021 SFG 600 pasta plate 2
01174078 SFG 500 pasta plate 2
40 01174022 Rolling-pin support 4
41 01174033 SFG 600 belt tube 2
01174095 SFG 500 belt tube 2

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42 14002671 11-20-182-02 pincer rest 4
43 01174028 Hub for right motor roller 4
44 17000042 Wheel in polyamide 6 SRP/NL 684501 2
17000044 Wheel in polyamide 6 SRP/FR 686801 2
45 08072079 Spring for pedal micro 2
46 25001320 Microswitch MV 15 2
47 03174004 Guard on motor side 1
48 12003949 Multigrip 430 J 12 belt 1
49 01174070 Motor pulley 1
50 01091011 Pinion Z=14 for mobile cylinder 1
51 01091009 Idle pinion Z=14 2
52 12000101 1 / 2” x 3 /16” simple chain, pitches 52 1
53 13000013 Radial bearing, mod. 6202 2RS 2
54 11000501 Three-phase motor gr.71 4P kW 0.55 1
55 01174023 Belt-hooking lever 2
56 01174032 Belt support pivot 4
57 25005060 ABB VB6 30.01 24 Vac remote control reverser 1
58 25008001 10 Va transformer 1
59 01091010 Pinion Z=14 for fixed cylinder 1
60 01087035 Hub for reduction crown 1
61 01174072 Driven pulley 1
12.0) MAIN MATERIALS:
•The raw materials used are steel, NBR (nitrile rubber), Nylon, Bronze.
•Surface treatment: Metallic surface varnishing with products compatible with food.
Forming process: lamination and wiredrawing of the steel structural shapes, welding.

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13.0) ANALYSIS OF RISKS, PROHIBITIONS AND OBLIGATIONS.
14.0) WASTE DISPOSAL: The buyer is completely responsible for the machine
deactivation. Expert personnel must perform the eventual disassembling of mechanical
and electrical parts. The machine must be disposed of in compliance with the local
regulations.
380 V
Strong shocks can unhook
the protection grid.
The machine stop
immediately, lower the grid.
No use of water for
fire-fighting No startup before checking protections No cleaning when the machine is operating