Replacing The Heating Elements - Ndustrio T Serie Manuel D'instructions

- Close the electrical component panel following the steps in point
5.3.3.
T64E: Open the front door (fig.10 item S) and slide the conveyor
belt from the baking chamber, following the steps in point 5.2.1.
- Slide out the bottom blower from the side concerned so as to check
the position of the actual thermostat sensor through the baking
chamber.
- Open the electrical panel components as described in point 5.3.1
- Disconnect the thermostat fastons.
- Remove the rearm button cover and unscrew the thermostat fixing
nut (fig.14 item P).
- Slide out the safety thermostat sensor.
- 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 point
5.3.3.
5.5 REPLACING THE THERMOCOUPLES
Carry out the operations described in 5.1 above, to replace the
thermocouples proceed as follows:
- For the top thermocouple remove the left adjustable side wall (or
right on the TT98E) (fig.10 item I) by unscrewing the knobs (fig.10
item L).
- For the bottom thermocouple remove the conveyor belt following
the procedure described in point 5.2.1.
T75E T97E: the oven has two thermocouples; one Top and one
Bottom.
Remove the top or bottom left door (fig.18 item A-W) by unfastening
the fixing screws, to access the top or bottom thermocouple
- Unscrew the thermocouple fixing nut (fig.19 item E).
- Disconnect the two thermocouple supply cables.
- Replace the thermocouple.
- Carry out the above operations in reverse order to reassemble,
making sure that the connectors are fastened to the proper poles.
- To replace the conveyor belt follow the procedure described in
point 5.2.2.
T64E-TT98E: The T64E has two thermocouples (Top, Bottom), the
TT98E has four thermocouples (Top, Bottom, Left, Right).
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
- Remove the corresponding door (TT98E only) (fig.36 item A-B-H-
I)
- Take out the corresponding blower, following the procedure
described in point 5.2.1.
- Unscrew the screws fastening the thermocouple using an Allen key
(fig.37 item V).
- To slide out the thermocouple cables on the right, (TT98E only) it
is necessary to remove the back panels (fig.38 item
T-S)
- Disconnect the cable from the electrical board and slide out the
thermocouple.
- Replace the thermocouple taking care to connect the connectors
in the right poles.
NOTE:
Make sure that the end of each thermocouple is always
positioned on the angled cut of the tube, as shown in fig 37 part
W
- Refit the corresponding blower following the procedure described
in point 5.2.2.
- Carry out the steps 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.
5.6

REPLACING THE HEATING ELEMENTS

After carrying out the operations described in 5.1 above, to replace
the heating elements proceed as follows:
T75E-T97E-TT98E:
- For the top heating elements remove the right and left adjustable
side walls (fig.10 item I) by unscrewing the knobs (fig.10 item L).
- For the bottom heating elements remove the conveyor belt
following the procedure described in point 5.2.1.
T75E T97E: Remove the top or bottom doors (fig.18 item A-B-W-
Z) by unfastening the fixing screws, to access the relative heating
elements.
- Disconnect the heating element power cables from both sides;
- Remove the insulation from both sides, taking care not to damage
it.
- From the left hand side, using a pipe wrench, remove the nut (fig.19
item F) from the heating element to be changed.
- From the right hand side, using a screwdriver, remove the screws
(fig.20 item G) and remove the heating element support plate from
this side.
- Carry out the above operations in reverse order to reassemble the
new heating elements, replace any damaged insulation, making sure
it does not reach the electrical contacts.
TT98E:
Top or bottom left-hand heating elements TT98E
-Open the switch panel, following the procedure described in point
5.3.1
- Remove the casing protecting the electrical parts (fig.36 part N)
- Remove the top or bottom doors (fig.36 item H-I-L-M)
- Disconnect the wiring
- Remove the casing protecting the heating element insulation (fig.37
item Q-R)
- Move the insulation, trying not to damage it.
- Loosen the screws fastening the heating element plate.
- Replace the damaged heating element
- Carry out the steps in reverse order to reassemble.
- Close the electrical panel following the procedure described in
point 5.3.3.
Top or bottom right-hand heating elements (TT98E)
- Open the side panel by loosening the two fastening screws (fig.16
part L)
- Remove the belt coupling cover (fig.16 item U) by unfastening the
screws that lock it in place (fig.16 item X).
- Lift the conveyor belt from the motor side by a few centimetres and
remove the belt connector (fig.16 item Z).
- Remove the bottom casing from the belt connector (fig.36 item F)
- Remove the belt motor protective casing (fig.36 part E)
- Remove the top or bottom doors (fig.36 item A-B-C-D)
- Disconnect the wiring
- Remove the protective casing from the heating element insulation
(fig.37 item O-P)
- Move the insulation, trying not to damage it.
- Loosen the screws fastening the heating element plate.
- Replace the damaged heating element.
- Carry out the steps in reverse order to reassemble.
– Close the side panel and tighten the 2 fastening screws (fig.16 item
L)
NOTE: Make sure that inside the TT98E oven the end of the new
heating elements are inside their seating, see the corresponding
position inside the baking chamber by removing the parts as
described in point 5.2.1; to reassemble, follow the procedure
described in point 5.2.2.
T64E
- Remove the rear panel by unfastening the fixing screws.
- Disconnect the motor and thermal sensor fastons
- Locate the heating elements to be replaced. Remember that the
terminals on the electric panel side are related to the ceiling
heating elements, while those on the opposite side are related to the
floor heating elements.
- Disconnect the resistor terminals using a second wrench on the
locknut as an anti-rotation and prevent forcing the terminal.
Note: Forcing any of the terminals of the heating elements during
connection / disconnection of electrical cables, irretrievably
jeopardizes the entire heating elements!
Remove panels covering the silicone
- Remove the back panel of the cooking chamber, loosening the
fastening screws.
- Move to a worktop.
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