- 8 -
Extinguishing
17. Fully close the cock and solenoid valve located immediately before the burner, and check to confirm that the fire
has been extinguished.
※
Stop the combustion blower after the in-furnace temperature lowers to below 500
℃
to protect the nozzle.
8. Inspection
(
Burner Nozzle, Ceramic Tube
)
※
Inspection must be made after the furnace has sufficiently been cooled. In inspecting, be sure to wear heat
insulating gloves and other protective gear.
(
CJ - 1, 2
)
1.
Confirm that the shut-off valve, the solenoid valve and the combustion blower are powered OFF.
2.
Loosen the union and others of the gas piping.
3.
Loosen the hexagon headed bolts
⑮
fixing the air body
③
and the gas body
④
.
4.
Hold the gas body
④
firmly, and pull out the gas pipe
⑥
, the burner nozzle
⑤
, the ignition plug
⑦
and the positioning rod for nozzle
⑧
slowly and simultaneously.
5.
Remove the union or the flange from the air piping.
6.
Loosen the hexagon headed bolts fixing the air body
③
to
the furnace body.
7.
When the air body
③
is removed, the combustion tube
①
inserted in the furnace can also be
removed. (If an excessive force has to be applied, be very careful not to break the combustion tube.)
8.
If the insulator or the like of the ignition plug
⑦
has irregularities, such as crack, replace it
immediately (or ignition failure will be caused).
9.
To replace the burner nozzle
⑤
by a new burner nozzle, loosen the hexagon socket setscrew
⑬
from the burner nozzle
⑤
.
10.
Check the ceramic tube on the state of the inside and outside. If the combustion tube is broken,
contact us for consultation as combustion may often be hampered.
11. Reassemble the burner by reversing the order of the above steps.
(
CJ - 3
)
1.
Confirm that the shut-off valve, the solenoid valve and the combustion blower are powered OFF.
2.
Loosen the union and others of the gas piping.
3.
Loosen the hexagon headed bolts
⑭
fixing the air body
③
and the gas body
④
.
