USE AND MAINTENANCE MANUAL
MANUAL DOUGH SHEETER
Mod. SPT0/1-E - SPT3/1-E
Code
3529.0031.01
Revision A
date 06/09/2011
14
Technical Assistance Service - Phone (+39) 0445.595.111
Arc. 86
OPERATION
Model SPT0/1-E – SPT3/1-E
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The conveyor belts (6) are operated by the control lever (7), with movement according to the
position of the lever. It has two side operating positions and one central position (idle). By
turning the lever to the left, the conveyor belt (6) will move from right to left and vice versa; if
the lever is set to the central intermediate position (idle) the conveyor belts will be at a standstill.
−
If devices other than the control lever (7) are activated during operation, for example one of the
two safety grilles (10) is raised, the machine will immediately stop. Press the start button (9) to
re-start the machine.
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Via the handle (11) the product thickness can be varied from zero (0) millimetres to thirty-five
(35) millimetres. The rolling thickness expressed in millimetres can be read on the self-adhesive
label coinciding with one of the handle references. Rolling must be performed gradually,
starting from the thickest size (35 mm) and gradually reaching the thickness required.
MACHINE MOVEMENT
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The single-speed motor
operates the calibration cylinders via pulley, belt and driven pulley. In
their turn, the calibrating cylinders operate the clutch centre drive. The electric motor rotation
can be reversed by means of the control lever (7) in conjunction with internal switches. This
control lever pivots the coupling gears which, according to the motor rotation direction, engage
the drive cylinder of one of the conveyor belts.
PROTECTIONS
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The central area consisting of the two calibrating cylinders, considered the most dangerous
area for the operator, is completely covered and protected by two side protection grilles (10).
They are made entirely of stainless steel. If one of the two grilles is raised, even by a few
millimetres, a microswitch will cut in, immediately stopping the machine.
−
The conveyor surfaces, on which the conveyor belts rotate, are designed so that the operator
cannot insert his fingers between the surface and the belt.
ELECTRICAL SYSTEM
All the electrical components subject to rated voltage and the electric motors are enclosed in a
casing with IP 54 protection rating. The control elements, push-buttons and selectors operate at
low voltage (24V) and are enclosed in casing with IP 54 protection rating.
The machine is designed for earth connection to protect against indirect contact risks (Chap. 10).
The electrical power and control circuit is provided with its own protection devices against short
circuits and overloads.
On the front of the machine, opposite the operator’s normal working position, is the
stop/emergency button (see chap. 4.2). This button disables the start buttons, thus preventing the
machine from being started. Reset, which is obtained by pulling the button cap, does not
automatically restart the machine.
