INSTALLER’S GUIDE
Page 23
10.8
To remove the shut-off tap
See figure 32.
10.8.1
Remove the burner unit – See
section 10.4
10.8.2
Turn the burner unit upside down.
Detach the thermocouple and interrupter
block from the tap - See sections 10.6.2 to
10.6.4.
10.8.3
Detach the pilot pipe from the tap.
10.8.4
Detach the inlet pipe.
10.8.5
Remove the hexagonal nut securing
the tap to the mounting bracket.
10.8.6
Detach the elbow by unfastening
the hexagonal nut connecting it to the flow
rate controller. Lift the tap (complete with elbow) clear
10.8.7
Loosen the hexagonal locknut securing the elbow to the tap. Remove the elbow by
rotating it.
10.8.8
If fitting a new tap, remove the hexagonal nut at the mounting bracket end of the
old tap and fit to the replacement tap. Refit in the reverse order. When refitting, make sure
that the tap spindle is in the correct relationship relative to the control pivot bracket. Rotate
the pivot bracket fully clockwise. The tap spindle should “bottom out” (i.e. the tap should
be fully open) after the pivot bracket has actuated the ignition microswitch but before it
has pushed the microswitch leaf against the microswitch body.
When refitting the thermocouple and interrupter block, make sure that the microswitch
wires are properly secured to give a good electrical contact.
When refitting the burner unit, make sure that the tab at the right side of the battery box is
in front of the “L” shaped bracket which projects up from the fire case base. See figure 29.
10.9
To remove the gas flow rate controller
See figure 33.
10.9.1
Remove the burner unit – See section 10.4
10.9.2
Detach the microswitch cover - See section 10.1.2.
10.9.3
Detach the shut-off tap as detailed in sections 10.8.2 to 10.8.6
10.9.4
Detach the burner pipe from the controller. Support the controller while detaching
to prevent excessive strain.
10.9.5
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.
10.9.6
Remove the hexagonal bolt securing the control pivot bracket to the controller at
the rear.
10.9.7
Detach the control pivot bracket.
Fig. 32 Shut-off tap (viewed from rear with
burner turned over)