3mm
58mm
General Purpose Ovens
Remove the control panel as detailed in Section 3.23
and open oven door. Undo the fixings which are
located inside the access holes situated above the
door opening on the heat shield underside. Pull off
the tap knobs and remove the spillage trays.
Withdraw the facia by easing it out slightly at the
bottom and down to clear the hob front. Replace in
reverse order.
3.2.5 Oven Door
a) Remove control panel as detailed in Section 3.2.3.
b) Unhook the bottom front panel and lower down.
c) Close the oven.
d) Using a screwdriver for leverage, unhook the door
quadrant springs. Support the door to prevent
accidental opening whilst removing the springs.
Open the door approx. three quarters of its travel
and lift slightly toclear the hinge pins.
Pull forward to allow the quadrants to slide through
the front frame apertures.
e) Replace in reverse order.
3.3 BURNER and INJECTORS
Note
Burners and injectors should be cleaned periodically
tomaintain maximum performance. Burners are best
cleaned with a wire brush and washed, drilled ports
freed from blockage with a metal broach, and loose
material being shaken out via the burner shank.
Injectors are best cleaned with a wooden splinter or
soft fuse wire, metal reamers may distort or increase
the orifice size and must not be used.
Ensure that burners are dry and free from any
cleaning material before replacing. Check adjustment
as in Section 1.
Open Top
Remove the pan supports. Lift off the brass rings.
Solid Tops (Single & Twin)
Remove the bullseyes, rings and hob fillings. Clean
the burners using a wooden splinter or fuse wire as
detailed above. Burners should only be removed by
authorised service personnel.
Oven
Open the bottom front panel and the oven door. Lift
out oven shelves and shelf supports. Remove the
base plates and baffle tray (lift up one end and rest on
edge on the support angle, slide sideways, then lift
other end to clear side angle supports). Remove the
cast iron heat shields.
Disconnect the thermocouple, electrode and pilot gas
supply from the pilot burner.
Undo the fixings which secure the front end of the
burner tothe base and slide the burner rearward from
the injector and retaining bracket on the base.
3.4 REMOVAL OF THERMOCOUPLE/
FLAME FAILURE DEVICE
3.4.1 Open Top Thermocouple
a) Remove the pan support
b) Disconnect the thermocouple nut at the FFD.
c) Undothe nut which secures the thermocouple
head tothe mounting bracket and withdraw.
d) Replace in reverse order. Position thermocouple
head as indicated in Figure 8 and ensure that the
FFD nut is not overtightened. A quarter-turn past
hand tight is sufficient toprevent fracture of the
electrical point.
e) Replace all parts in reverse order.
Figure 8
3.4.2 Oven Flame Failure Device/Gas Cock
a) Remove the vertical control panel and right hand
outer panel as described in Sections 3.2.3 & 3.2.1.
b) Undo the pilot supply pipe compression nut. Ease
the pipe forward and clear.
c) Undo the two compression nuts on the control inlet
and outlet pipes.
d) Remove the fixings which secures the Z bracket
support. Partly withdraw the control.
e) Undo the thermocouple nut.
f) Remove the Z bracket and fit it on the new control.
g) Replace all parts in reverse order. Check the gas
joints for soundness.
3.4.3 Oven Thermocouple
a) Remove the vertical control panel and RH outer
panel as described in Sections 3.2.3 and 3.2.1.
b) Undo the thermocouple nut at the rear of the FFD
after partially removing control.
c) Open the bottom front panel and disconnect the nut
which secures the thermocouple head to the pilot
assembly and withdraw.
d) Fit the new thermocouple. Ensure that the head is
pushed firmly into position before tightening the nut
and that the nut at the FFD is not overtightened.
A quarter turn past hand tight must only be
employed to prevent fracture of this electrical joint.
e) Replace the panels in reverse order.
3.4.4 Solid Top Flame Failure Device/Gas Cock
a) Remove the control panel. See Section 3.2.4.
b) Remove the solid top hob fillings.
c) Undo both large compression nuts on the inlet and
outlet pipes.
