Replacing The Thermocouple - Nordcap MORETTI T75G Mode D'emploi

of the actual thermostat sensor through the baking chamber.
- Remove the bottom door (fig.50 item A or H) loosening the fastening
screws.
- Slide out the safety thermostat sensor.
- Open the electrical panel from the side concerned, following the
procedure described in section 5.3.1.
- Unscrew the nut fastening the thermostat.
- Disconnect the thermostat fastons.
- Replace the thermostat and position the sensor correctly, as checked
previously in the baking chamber.
- Carry out the steps in reverse order to reassemble.
- Close the electrical component panel following the steps in section
5.3.3.
5.5

REPLACING THE THERMOCOUPLE

Carry out the operations described in section 5.1; to replace the
thermocouples proceed as follows:
T64G: The oven is equipped with a thermocouple.
NOTE:
If for any reason it is necessary to move or remove a
thermocouple, to keep it undamaged, IT IS OBLIGATORY TO
HANDLE IT BY HOLDING ONLY THE METAL TUBE AND
NEVER THE CABLE.
- Open the electrical component panel following the procedure
described in point 5.3.1
- Take out the bottom blower, following the procedure described in
point 5.2.1.
- Unscrew the screws fastening the thermocouple using an Allen key
(fig. 51 item V).
- Disconnect the cable from the switchboard and remove the
thermocouple.
- Replace the thermocouple taking care to connect the connectors to
the right poles.
NOTE:
Ensure that the end of each thermocouple is always
positioned on the angled cut of the tube, as shown in fig 51 item W
- Refit the corresponding blower following the procedure described in
point 5.2.2.
Perform the above operations in reverse order to reassemble.
- Close the electrical panel following the procedure described in point
5.3.3.
- To replace the conveyor belt follow the procedure described in point
5.2.2.
T75G: Remove the left adjustable side wall (fig.39 item L) by
unfastening the knobs.
- Remove the top left door (fig.39 item A) by unfastening the fastening
screws.
- Unscrew the thermocouple fixing nut (fig.39 item E).
- Nomenclature and disconnection of the two thermocouple supply
cables.
-Replace the thermocouple, taking care to tighten in the position
indicated in fig. 39 with the ceramics at the proper distance
from the baking chamber wall
- Carry out the above operations in reverse order to reassemble, making
sure that the connectors are fastened to the proper poles.
T64G-TT98G: the T64G has one thermocouple (left), the TT98G has two
thermocouples (Left, Right).
NOTE:
If for any reason it is necessary to move or remove a
thermocouple, to keep it undamaged, IT IS MANDATORY TO
HANDLE IT BY HOLDING THE METAL TUBE ONLY AND
NEVER THE CABLE.
- Open the electrical component panel following the procedure
described in section 5.3.1; on the TT98G, also remove the
corresponding door (fig. 50 item A-H)
- Remove the lower left or right blower following the procedure
described in section 5.2.1.
- Unscrew the screws fastening the thermocouple using an allen key
(fig. 51 item V).
- Disconnect the cable from the electronic board and remove the
thermocouple.
-Replace the thermocouple , and ensure the connectors are connected
according to the right polarity .
NOTE:
Ensure that the end of each thermocouple is always
positioned on the angled cut of the tube, as shown in fig 51 part W
- Refit the corresponding blower following the procedure described in
section 5.2.2.
- Carry out the steps in reverse order to reassemble.
- Close the electrical panel following the procedure described in section
5.3.3.
- To replace the conveyor belt follow the procedure described in section
5.2.2.
5.6 TFT DISPLAY REPLACEMENT T75G-TT98G
After carrying out the operations described in section 5.1 above, to
replace the TFT display or control panel proceed as follows:
- Remove the bracket (fig. 11 item A)
- Mount the heat shield (fig. 11 item B)
- Unfasten the control panel fixing screws (fig. 40 item H).
- Disconnect the Display connectors.
- Replace the control panel
- Remove the 3 nuts (fig. 40 item I) and replace the Display.
- Carry out the above operations in reverse order to reassemble,
making sure that the connectors are connected properly.
NOTE:
Follow "factory default" procedure on the control
unit as per paragraph 5.19.
- DIGITAL PYROMETER T64G
After carrying out the operations described in 5.1 above, to replace the
digital pyrometer, proceed as follows:
Open the electrical component panel following the procedure
described in point 5.3.1
- Loosen the nuts and remove the pyrometer
- Disconnect the pyrometer connectors and replace the pyrometer
- Perform the above operations in reverse order to reassemble, taking
care that the connectors are inserted in the correct poles.
- Close the electric components panel as described in 5.3.4
NOTE:
Follow the "Reset" procedure on the control unit as
per paragraph 5.18.
5.7 KEYBOARD CONTROL PANEL REPLACEMENT
Control Panel buttons are incorporated into the Display Adapter. To
replace the Display card, follow the instructions in section 5.6.
5.8 DISMANTLING AND REASSEMBLING
THE CONVEYOR BELT
After carrying out the operations described in 5.1 above, to dismantle
and reassemble the belt proceed as follows:
- Remove the conveyor belt from the cooking chamber by running the
operations indicated in section 5.2.1; place it on a work surface and be
equipped with long nose pliers.
5.8.1 REMOVING CONVEYOR BELT
After carrying out the operations described in 5.1 above, to dismantle
the belt proceed as follows:
- Slide the belt until the joint is at the centre top.
- Compress the right side of the conveyor belt(fig.41).
T75G only : slide the four junction tubes (fig. 42) on the side of the
meshes.
- Disconnect the mesh joints.
- Remove compression from the end of the belt.
- Pull the belt out
5.8.2 ASSEMBLING CONVEYOR BELT
- After carrying out the operations described in 5.1 above, proceed as
follows:
- Insert the conveyor belt in the desired direction and ensure the top
remains smooth and the hooked side edges are not exposed in the
wrong direction (fig. 46).
- Place the conveyor belt edges in the upper central part and ensure
that the gear wheels to the left and idler bushings to the right properly
hook the belt .
NOTE:
The belt wheels must never be level with the joint
tubes.
- Compress the right side of the conveyor belt (fig.41).
T64G-T75G: Take one of the side joint links and after checking to
see how the ends of the belt are assembled (fig.43b), first hook up the
outer side section and then the inner one, using a long nosed clamp.
- Repeat the above operation on the opposite side link.
- Hook up the intermediate pieces (fig.44), and with the aid of the
clamp straighten any links that may be bent.
-Insert tubes in the mesh and place them in the center of the junction
UK/17