Nidec DUB Series - Replacement of Heating Elements

25
Operating Procedure
(1)
Take the heating elements off.
①
Take the front cover off.
②
Check the position of heating elements
you want to exchange and take the
connection screw off.
Loosen set bolt with the attached L wrench.
③ Remove pottery tube.
④ Pull the heating elements slowly
and remove it paying attention not to
damage bricks.
(2)
Install new heating elements.
①
Insert the both sides of new heating
element into the hole inside the kiln.
Put the rest of elements to the ditch.
②
Put the pottery tube into the original position.
(Put the heating elements into the inside.)
③
Connect with insulating electric wire with
connection screw pulling the heating
elements a little.
④
Install stainless-steel cover.
Caution)
Please be careful not to damage
bricks.
When closing the set bolt with
the attached T wrench, please
󳞛x and close tightly by plyer.
Pottery tube
Heating
elements
Set bolt
Connection
screw
Set up the clearance;
5 - 10mm.
Insulating
electric wire
Disconnection
8
2. Replacement of Heating Elements
Caution)
Please be careful not to broke the
U pin holding the heating
elements inside the bricks.
Caution)
Please be careful not to hit U pin
too strongly since it tends to be
broken easily.
Maintenance
1 How to exchage each
Caution)
Please cut the leftover of the
heating elements by plyer not to
let heating elements be in contact
with the outside boards.