When re-positioning the jet block in the burner, ensure that it is pushed in
as far as it will go.
The gas regulator has a spindle ‘O’ ring housed inside the body which
may need lubrication from time to time if the control becomes ‘spongy’ in
operation, making precise gas control difficult. As stated in the lighting
instructions in the ‘Lighting The Burner’ section, the full range of
adjustment for normal burner operation is achieved within the first full
rotation of the regulator knob, and it should only be unscrewed more than
this for maintenance purposes and when the tank is empty, and their are
no naked lights nearby.
To lubricate it, remove the knurled knob which is retained by a 4BA
socket grub screw (.100” AF Allen key required) in the side.Beneath the
knob is a back-lash spring and white PTFE washer which will slide off the
spindle. Unscrew the hexagon retaining nut then screw the spindle out of
the body. The ‘O’ ring can now be lubricated.
Replace the spindle followed by the retaining nut. Slide the white PTFE
washer and backlash spring over the spindle and replace the knob. Note
that the grub screw that holds the knob in place tightens into a groove near
the end of the spindle.
WATER TOP-UP SYSTEM
Over a period of time the end of the plastic filling tube that pushes in the
boiler top-up valve will become a loose fit due to the heat of the fitting.
To cure this, simply cut approximately 6mm from the end of the tube
when necessary.
If the top up-valve leaks constantly, it will require either cleaning or the
internal silicon rubber tube replacing. Firstly, remove the boiler filler plug
as described earlier, then unscrew the filler valve from the top. The rubber
tube will be seen on the lower part of the valve and can be carefully
slipped off. If it is undamaged, clean the valve body and inside face of the
tube and re-fit the valve.
If the rubber tube is damaged, a replacement can be obtained from
Roundhouse.
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