g) The burners without pilot bracket may now be removed from injector seating.
h) To remove burner with pilot, lift upwards from injector seating, undo the two fixings holding in the
pilot bracket and lift burner clear.
3.3
Removal of Injector
Following removal of burner, the injector may be cleaned or replaced as desired. See Section 1.8 for
injector dimension details.
3.4
Burner and Injector Cleaning
Burners require to be cleaned periodically to ensure that ports are free from blockage. This may be
facilitated by means of wire brushing. Individual ports may be cleared with a suitable metal instrument.
Dislodged material should then be shaken out of open burner end.
Warning: Should it become necessary to wash the burner(s), ensure that they are completely
dry and free from cleaning materials before re-fitting to the appliance.
The injectors also require regular inspection and may be cleaned with a wooden splinter or fuse wire.
Hard metal implements MAY DAMAGE THE ORIFICE and MUST NOT be used.
Upon re-fitting, check adjustment and flame picture as described in Section 2.5.2.
3.5
Flame Failure Thermocouple
a) Remove RH outer side panel
(viewed from front),
by removing fixings at top, rear and bottom.
b) Undo nut that secures thermocouple to SIT pilot bracket.
c) Undo nut that secures thermocouple to gas tap.
d) Withdraw thermocouple and replace in reverse order.
3.6
Gas Valve
3.6.1 To Remove
Proceed as follows-
a) Remove control knob, and front facia panel bottom fixing nuts. Pull facia panel lower edge forward
then downwards to remove facia panel.
b) Remove RH outer side panel
(viewed from front),
by removing fixings at top, rear and bottom.
c) Undo nut that secures burner feed pipe to control.
d) Release pilot tubing nut from control and ease pilot tube clear of location.
e) Remove fixings that secure control to gas pipe.
f) Undo nut that secures thermocouple to control.
g) Remove fixings that secure control to appliance.
h) Remove two side fixings and large nut securing the gas tap, and remove panel.
i)
Withdraw control.
3.6.2 To Re-grease Control Tap
a) Remove control knob, and front facia panel bottom fixing nuts. Pull facia panel lower edge forward
then downwards to remove facia panel.
b) Remove two side fixings and large nut securing the gas tap, and remove panel.
c) Remove fixings that retain front niting securing plate while holding plate against internal spring
pressure.
d) Carefully withdraw plate, complete with operating spindle.
e) Withdraw exposed rod, spring, brass washer, and sealing washer, taking care not to lose any
parts.
f) Withdraw plug and clean with a soft rag and also clean mating surfaces in control body. Sparingly
re-grease plug with an approved heat-resistant grease.
Re-assemble in reverse order taking care with the central pin assembly. Fit spring to pin first, then
brass washer and finally sealing washer.
Ensure sealing washer fits snugly into recess at base of plug. When re-fitting operating spindle,
ensure niting pin engages in plug slot.
