24
LT5674 (ISS 5)
Replacement of Injector
1.
Remove the fret or fascia and turn off the gas supply ay the isolation cock.
2.
Remove the glass and fuel bed components as described earlier in this manual.
3.
Undo and remove the 2 screws holding the burner in place
4.
Carefully remove the burner lifting from the right hand end of the burner.
5.
Loosen and remove the injector back nut.
6.
Remove the 4 screw holding the burner support bracket into place and carefully lift away the burner support
bracket avoid putting strain on the injector.
7.
Undo the compression connection to the injector and lift it away
8.
Clean or replace injector and replace in reverse order, ensuring that the connection to the injector fixing is
sound air test if in doubt.
9.
Turn on the gas supply, check for soundness and recommission.
Replacement of the Micro Switch
1.
Repeat operations 1-3 for removal of gas control.
2.
Pull off the cable connections from the switch.
3.
Remove the two screws holding the switch in place and lift away the switch, replace in reverse order.
4.
Turn on the gas supply, check for operation of switch.
Replacement of the Thermocouple
1.
Repeat operations 1-13 for removal of gas control.
2.
Pull off the cable connections from the switch..
3.
Replace in reverse order.
4.
Turn on the gas supply, check for soundness and recommission.
Replacement of the Pilot Injector
1.
Undo the pilot tube nut at the pilot bracket.
2.
Pull the pipe gently back taking care not to damage.
3.
Remove the pilot injector from inside the pilot bracket.
4.
Clean or replace in reverse order, turn on the gas supply, check for soundness and recommission.
Replacement of the Spark Electrode
1.
Remove the cable from the electrode connection.
2.
Undo the electrode nut at the pilot bracket.
3.
Remove the electrode carefully.
4.
Clean or replace in reverse order, and recommission.
