GB-6
D
GB
F
NL
I
E
▷
Ensure that the electrode length does not change.
L
4
5
1
2
3
Spark plug
Dowel pin
Insulators
4
Burner head
5
Electrode tip
8
Remove dirt from electrode and insulators.
9
If the electrode tip or insulators are damaged,
replace the electrode.
▷
Before changing the electrode, measure the
total length
L
.
0
Connect the new electrode with the spark plug
using the dowel pin.
Adjust spark plug and electrode to the measured
total length
L
.
Screw the electrode into the burner housing.
Check distance
L
:
L2
ZMI
Burner
L2
ZMI 16B
25 mm
ZMI 16D
21 mm
ZMI 16G
25 mm
Burner
L2
ZMI 25B
35 mm
ZMI 25D
20 mm
ZMI 25G
35 mm
L2
ZMIC
•
Reconnect the terminal boot.
•
Produce a maintenance report.
ZMIC..K: replacing the bellows unit
4
3
2
1
5
6
7
9
8
Make a mark
to show the
length for re-
installing.
Secure the bel-
lows unit here
while unscrew-
ing the bellows
unit nut.
4
3
2
1
5
6
7
9
8
0
Insulate the ceramic tube and reinstall the burner,
ZMIC: replacing the ceramic tube
Remove the ZMIC – see page 6 (ZMIC..K:
50 mm
3
4
5
2
Spray screw
connec-
tion with
penetrating oil
and unscrew
clamping ring.
Burner
L2
ZMIC 28B 50 mm
ZMIC 28G 50 mm
Thread (R1)
must be facing
in the direction
of the furnace.
The bellows
unit gasket
cord must not
be twisted
when installing.
Lubricate
thread with
ceramic
paste before
assembly.
