26
14.11
TO REMOVE THE GAS FLOW RATE CONTROLLER (See
figure 46)
14.11.1
Remove the burner unit - See 14.6.
14.11.2
Detach the microswitch cover - See section 14.1.2.
1.11.3
Detach the shut-off tap as detailed in sections 14.10.2 to 14.10.6
14.11.4
Detach the burner pipe from the controller. Support the controller while
detaching to prevent excessive strain.
14.11.5
Remove the nut and washer securing the control pivot bracket to the
controller at the front. Support the pivot bracket while removing the nut to
prevent possible damage to the microswitch.
14.11.6
Remove the hexagonal bolt securing the control pivot bracket to the
controller at the rear.
14.11.7
Detach the control pivot bracket.
14.11.8
Remove the hexagonal nut securing the controller to the front mounting
bracket and remove the flow rate controller.
14.11.9
Refit in the reverse order.
14.12
TO REMOVE THE MAIN BURNER INJECTOR (See figure 47)
14.12.1
Remove the burner unit - See section 14.6.
14.12.2
Disconnect the main burner pipe from the injector at the venturi
end. If necessary, loosen the pipe at the flow rate controller end to swing
the pipe clear of the injector.
14.12.3
Unscrew the injector from the injector carrier which is on the
other side of the injector bracket.
14.12.4
Refit in the reverse order.
14.13
TO REPLACE BURNER PLAQUES (Fig. 48)
14.13.1
Remove the loose coals, the front coal and the base coal.
The plaques can be then be removed as follows without detaching the
front surround or ceramic walls but
be careful not to damage the ceramic
walls while working inside the firebox.
14.13.2
Remove the plaque clamping strips by detaching 8 screws.
14.13.3
Remove the plaques and the combination gasket between and
under the plaques. If necessary remove the gauze and the gasket beneath
it.
14.13.4
If necessary fit a new gasket below the gauze. Clean and replace
the gauze. Fit a new combination gasket below the plaques. Push the
gasket ends inwards to form a dividing gasket between the plaques.
14.13.5
Place the new left hand plaque in position. The left side of the
plaque must touch the inside edge of the retaining flange at the left side of
the burner well.
14.13.6
Place the new right hand plaque in position. Make sure that the
centre section of the combination plaque is between the two plaques. If
there is any play between the plaques and the end retaining flanges, push
the plaques firmly to the left squeezing the centre section of the
combination gasket between the two plaques. Any gap should be between
the right side of the plaque and the right side retaining flange.
14.13.7
Fit the front and rear plaque clamping strips. Make sure that the
plaques are as far to the left as possible. .
It is important that the left side
plaque is accurately positioned so that it has the correct relationship to the
pilot.
Fully tighten the clamping strips.
14.13.8
Refit the coals as described in the installation instructions.
Fig. 48 Burner plaque positions
Fig. 47 Burner Injector Removal
Fig. 46 Gas flow rate controller
Содержание Marseille BR622
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