L.B. White 200 Norseman - Manual (Page 12)

IGNITER NUT
ELECTRODE
LEAD
PILOT HEAD
BRACKET ASSEMBLY
PILOT
SCREEN
COMPRESSION
NUT
VALVE
VALVE
ELBOW
BURNER ORIFICE
THERMOCOUPLE
ELECTRODE
ORIFICE
1/16 INSIDE EDGE OF PILOT HEAD
TO SIDE OF ELECTRODE
11
D. Pilot O Orifice
1. Loosen compression nut at pilot orifice and carefully
reposition pilot tube away from the orifice. See Fig. 6.
2. Remove pilot orifice from pilot head and screen from
orifice inlet.
3. Ensure orifice hole is not plugged.
E. Thermocouple
1. Loosen attachment nut at pilot assembly and
connector nut at safety control valve. Remove
thermocouple. See Fig. 6.
2. At reassembly, avoid sharp bends or kinks in
thermocouple to prevent damage.
F. Electrode
1. Remove electrode lead from igniter terminal.
2. Remove mounting screw from electrode mounting
bracket and pull electrode from bracket. See Fig. 6.
3. At reassembly, ensure electrode gap is 1/16 in. See
Fig. 7.
FIG. 6
FIG. 7
G. Igniter
1. Remove electrode lead from igniter terminal.
2. Remove igniter mounting nut and pull igniter from its
bracket.
FIG. 8
Servicing of the igniter and electrode is needed when a
spark at the electrode is not seen. This may happen with
hard use over a long period of time, or due to dust and dirt
accumulation.
If you do not see a spark being generated at the electrode
check the following areas:
Igniter
1. Pull the wire from the push button igniter.
2. Place a metal object, grounded to case, (such as a
screwdriver tip) about 1/8 in. from igniter.
3. Push the igniter’s button several times. If spark is not
seen, replace igniter.
Electrode
1. Ensure the wire between the electrode and the igniter
is properly connected.
2. Check the lead for nicks, cuts, or mars. Nicks or cuts
will prevent a spark from being generated at the
electrode tip. Replace the electrode if necessary.
The electrode ships with the lead.
3. Ensure the electrode tip is not out of position and is
not corroded. The tip should be located
approximately 1/16 in. from inside of pilot head.
4. Verify that the electrode’s ceramic body is not
cracked and that the electrode tip does not move
within its body. If it does, replace the electrode.