24
Mexico Super RS 3/40 - 3/80 -
Installation
SERVICING
SER
VICING
40 PILOT BURNER REPLACEMENT
1.
Lift off front panel and remove the grille
assembly - refer to Frames 31& 32.
Undo the gas cock union. Remove the 4
wing nuts and withdraw the burner and
controls assembly, complete, from the boiler.
2.
Remove the ignition electrode. Refer to
Frame 45.
3.
Unscrew the thermocouple connection and
pull the thermocouple clear. Refer to Frame
46.
1.
Lift off the front door - Refer to Frame
31.
2.
Pull off the thermostat knob.
3.
Remove the 2 screws and pull down
the control panel tabs clear of the top
panel.
4.
Remove the thermostat phial from the
pocket - refer to Frame 31.
5.
Remove the bottom screw and remove
the cover.
6.
Remove the top screw and ease the
control box off the control panel.
7.
Remove the 2 screws to release the
thermostat bracket.
8.
Disconnect the electrical leads.
9.
Unscrew the thermostat nut to withdraw
the thermostat.
10.
Fit the new thermostat and re-assemble
in reverse order.
42 IGNITION LEAD REPLACEMENT
1.
Lift off front panel and remove the grille
assembly - refer to Frames 31& 32.
Undo the gas cock union. Remove the 4
wing nuts and withdraw the burner and
controls assembly, complete, from the
boiler.
2.
Remove the purse clip.
3.
Undo the 2 securing nuts and washers.
Remove the sealing plate and gasket.
4.
Disconnect the ignition lead from the
base of the electrode and the piezo unit,
and withdraw the lead.
5.
Fit the new lead and re-assemble in
reverse order.
41 CONTROL THERMOSTAT REPLACEMENT
4.
Undo the pilot supply pipe connection and ease
clear of the pilot burner. DO NOT lose the pilot
injector, which is a push-fit in the pilot burner
housing.
5.
Remove the 2 securing screws and washers,
and withdraw the pilot burner.
6.
Fit the new pilot burner and re-assemble in
reverse order, ensuring that:
a.
The injector is in position when refitting the
pilot supply.
b.
A gas-tight joint is made.
c.
The spark gap is correct. Refer to Frame 45.