34
SERVICING
Mexico Super 4100 FF & 4125 FF -
Installation
69 IGNITION ELECTRODE AND LEAD REPLACEMENT
1. Remove the 2 screws and lift off the lower front
panel then remove the grille assembly. Refer to
Frame 57.
Undo the gas cock union. Remove the 4 wing nuts
and withdraw the burner and controls assembly,
complete, from the boiler.
7
4
70 MAIN BURNER REPLACEMENT
Detail of pilot flame length and spark gap
1. Remove the 2 screws and lift off the lower front panel
then remove the grille assembly. Refer to Frame 57.
Undo the gas cock union. Remove the 4 wing nuts and
withdraw the burner and controls assembly, complete,
from the boiler.
2. Disconnect the ignition lead from the PCB.
3. Prise the retaining clip out of the groove in the
electrode, using a small screwdriver, and withdraw the
electrode.
4. Push in the new electrode until
the retaining clip locates in the
groove and re-assemble in
reverse order.
2. Disconnect the
ignition lead from
the PCB.
3. Remove the 2
screws securing the
pilot burner and pull
the assembly clear
of the main burner.
4. Remove the 2 nuts
and washers
securing the burner
to the front plate
and manifold.
Withdraw the
burner.
5. Fit the new burner
and re-assemble in
reverse order,
taking care not to
damage the main
burner injector
which is screwed
into the burner
manifold.
SER
VICING
