7
Step 2 The gas injector can be inspected and
replaced if contaminated or blocked.
When replacing the gas injector ensure
approved thread sealant is used.
Step 3 Reconnect ignition leads and silicone
tube to test nipple. Refit gasket and support
casting.
3.5 Burner Head and Electrode Servicing
Step 1 Check the pepper pot burner head for
contamination. If necessary this can be
removed. See below. This can be cleaned
together with the Inside of the burner head.
Step 2 The pepper pot burner head can be
replaced ensuring the 5 holes on the outer ring
are aligned alongside the probes.
Step 3 The condition of the igniter assembly can
be checked for deterioration. However, we
advise replacement at each service to ensure
continued reliability. Detach the electrode
assembly from the burner head by removing the
two screws and separating the igniter lead
connectors.
Step 4 Refit the electrode assembly and ensure
the connections are secure to prevent arcing of
the spark electrode.
Step 5 Check the positions and spark gap as
shown below.
Step 6 The burner assembly is ready to refit
after servicing the combustion fan and the
radiant tube assembly.
Ø3”
25/64”
1 7/64”
±5/64”
2 13
/64”
±13/6
4
”
7/64”
±1/64”
25/64”
3/8”
10.0°