Maga MKJ2-250 User manual

Figure 11) Attaching the blade
to the shaft.
MINI INSTRUCTIONS MANUAL Vegetables cutter MKJ2-250
1. Introduction
1.1 Vegetable cutters series MKJ2-250 are modern gastronomic machines, meeting the requirements
of the terms, both in standard of hygiene and safety of using.
1.2 Compliance with the recommendations contained in the manual and use the machine as inten-
ded, will provide a safe and long-term performance.
1.3 The manufacturer can not be held responsible for any consequences resulting from improper
maintenance of machine instructions.
1.4 Machines MKJ2-250 come in two variants with different power supply methods 400/230V (MKJ2-
250.1) 3-phase current, or 230V 1-phase current with revolutions adjustment(MKJ2-250.2).
2. Apply
Vegetable cutter is used for cutting all kinds of raw fruits and vegetables into slices, chips and
pulp, and for use cube attachement - even for cube, as well as for grinding yellow cheese. Largely eli-
minates the manual work effort shredding vegetables and fruits, and provides lower costs by reducing
the time to prepare meals.
3. Prepare for instalation
After unpacking the machine, check the completeness of the equipment according to specifications.
Then hopper cover and knife grinders rinse with hot water. For storage of grinding knives there is a special
base, which can be bought separately. Knives should be protected from contamination. After each use,
wash them in warm water, dry and rub with dining olive.
4. Connection to the power supply and test run
Machine MKJ2 -250.1 must be supply voltage 3 x 400 V with protective conductor and neutral. The
power cables should be 1.5 mm2, with fuses rated at 6A inserts in each of the three phases. Installation
should be completed with three phase socket, the ground wire should be connected to the terminal mar-
ked with the ground. Supply should be checked by authorized persons, in terms of the effectiveness of
protection against electric shock. Cable length of the machine is about 2.5 m and ends with a five-plug.
Socket should be near the position of the machine.
WARNING - Applies to MKJ2-250.1
When you first run the machine and the shaft does not rotate and red light slow flash, it means that
the phase wires are connected improperly. In this case, in the plug of Power cord should be replaced the
connection of the phase wires.
MKJ2-250.2 machines adapted to 1-phase current supply must be connected to a 230V socket with
an earthing pin.
5.
The drive unit is driver by integrated worm gear and is equipped with a magnetic safety switches
that prevent the inclusion of the drive with the cover is open or the pusher removed. Durring slicing, each
time you open the pusher to fill the food cutter, the machine automatically turns off, but you do not need
every time to press the power switch (green button). During the pusher service indicator light is lit. Howe-
ver, when you open the cover for replacement the disc or cleaning trough, after closing it again, re-press
the power switch button (green) because a safety switch located on the lid makes off power to the engine
and then the lamp goes out.
6. Installing shredding discs and the fidding box
Before replacing discs,the machine must be deactivated by the main switch (red button). The signal-
ling lamp comes off. After opening the cover, hold the shredding disc in two hands and insert on the shaft
so that the bayonet recesseson the disc mounting sleeve will align with the pins on the shaft. After fully
inserting the disc,turn it slightly to the left. In order to remove a shredding disc, follow the above procedure
in the reverse order. Durring operation,the cutting disc automatically lock on the roller as the shredder shaft
rotation direction is oposite to the direction of the side recess of the bayonet lock. In order to remove the fe-
eding cover,unfasten the clip on the left side of the machine and remove the cover from the hinges located
on the right side of the machine slightly turning the lid sideways back and forth.
In order to fix the feeding cover, follow the above procedure in a reverse order, insert the cover into
the hinges in the direction opposite in relation to its removal.
Figure 4 Main components
and parts of MKJ2-250
 1. Pusher
 2. Feedingcover
 3. Driveunitwithatrough
 4. Hold-downelement
 5. Scraper
 6. Outputshaft
 7. Covermagneticmicroswitch
 8. Hold-downelementmagnetic
microswitch
 9. Holdingclip
 10. WhitesignallingLED
 11. RedsignallingLED
 12. Machinepowerswitch
 13. Machineturnoffswitch
 14. Revolutionsadjustmentknob
(forMKJ2-250.2)
Warning:
A correctly fixed and clipped feeding cover activates the emergency switch allowing for
machine activation by means of the main switch (green button). However, the cutter may
be activated not before the feeding opening is closed by means of the hold – down element
(before that, the signalling lamp must indicated the machine activation status).

Motor does not work
No voltage in the mains or no phase. Check voltage.
Improperly fixed feeding cover. Fix correctly.
Machine overheated. Wait a few minutes.
Electric installation damage. Inspect and repair.
Damaged motor. Repair or replace.
Operation is too noisy Damaged output shaft bearings. Disassembly the unit and replace bearings.
Faulty shredding Blunt or damaged shredding cutters. Sharpen or replace.
Correct operation The red LED is off. The white LED is on.
No second or third phase, phase reversal, asymmetry The red LED blinks rapidly. The white LED is off.
Lack of simultaneous Hall sensors operation in the group The red LED blinks shortly. The white LED is off.
Motor thermal protection error (70°C, hysteresis 15°C) The red LED is permanently on. The white LED is off.
7. Cube set (fig 12)
As an option MKJ2-250.1 or MKJ2-250.2 may be equipped with an attachment making it possibile
to cube food with cube dimmensions 10 x 10 x 10, 15 x 15 x 10, 20 x 20 x 10 or 7.5 x 7.5 x 10. The attach-
ment includes:
a Disc with cutters in a form of a mesh being a fixed element installed on the ring located
inside the trough. This disc is fix as the first element. The lower mesh disc ring must be ali-
gned by means of the chamfers with the same chamfers as in the ring located in the trough.
However, attention must be paid that the part of the disc equipped with mesh cutters is
located on its right side (fig.13). No locking device for the disc is neccesary as the alignment
of the mesh disc with the trough ring protects the disc against rotation and sliding into
the feeding throat. Moreover, during the machine operation, the rotation disc presses the
mesh disc to the trough bottom.
b The rotating element with two fixed cutters which cut off and transfer diced vegetables is
fixed on the output shaft, similarly to other shredding discs. This element is fixed after the
mesh disc is installed.
Due to the fact that operations of the cutting machine with the dicing attachement imposes the highest
load on the drive (in comparison with slicing or cutting int chips or flakes), frozen or intensively chilled products
should not be shredded.The dicing set is removed by complying with the assembly procedure in reverse order.
It is recommended to use a puller to remove the rotating cube. The dicing disc must be cleaned after food resi-
dues and removed from the mesh. Next,it must be rinsed with a water jet and dried .
The set comes with the second scraper (shorter) adapted to mate with dicing set. While in the case of
dicing soft vegetables helps shield mesh from a set to dicing, in the case of dicing vegetables in the softened
state is essential. Without it, the dicing is not possible, and instead the cubes we receive vegetable pulp.
8. Activities after completing the shredding process
Every day, after completing the shredding process, the following actions must be taken:
- deactivate power supply by means of the main switch (red button) and remove the power
supply cable plug from the socket
- remove the feeding cover and the shredding disc
- thoroughtly wash the machine (in particular its trough) with hot water and wipe to dry
- wash the feeding cover and the shredding disc with hot water
- clean the output shaft and the openings in the shredding disc which allow for fixing them on
the shaft so as to facilitate disc replacement
- wash knives with warm water and wipe the cleaning of dry and rub olive
- set the shredding cutters on the base
- parts of the machine protect from accidental damage.
In order to protect the machine interior against vegetable juice leaks, its leak tightness is improved,
but only in the trough area. Do not wash the machine enclosure with a water jet or pressurised water stream.
Do not insert the enclosure containing electric elements in a container with water.
9. Methods of fixing operating faults
See below for the error codes indicated by red and white LEDs for the regulated controller in MKJ2-250.1:
See below for the error codes indicated by red and white LEDs for the regulated controller in MKJ2-250.2:
After indication of any fault, the motor is stopped and may be restarted after the fault is repaired and
the GREEN button (START) is pressed.
Correct operation The red LED is off. The white LED is on.
Interrupted motor operation due to voltage interruption The red LED blinks rapidly. The white LED is off.
Error reported by the inverter The red LED blinks in long intervals. The white LED is off.
Lack of simultaneous Hall sensors operation in the group The red LED blinks in long intervals. The white LED is off.
Motor thermal protection error (70°C, hysteresis 15°C) The red LED is permanently on. The white LED is off.
Figure 13 Fixing the cube set
Rys. 13a) Rotatable cube element
with the puller