GAS JET REMOVAL
To remove the gas jet, first remove the roof. Unscrew and remove
the plastic battery holder. . Using a 2BA spanner, unscrew the Gas
Jet Holder Union Nut. This connects the gas pipe to the gas
regulator - see the photograph on Page 5. Loosen the gas jet
holder retaining screw which will allow the gas jet holder to be
pulled backwards and out. The Gas Jet can now be removed from
the gas jet holder using a 4 BA spanner, and cleaned or replaced.
Note
when connecting or disconnecting the gas pipe or gas jet
holder, do not use excessive force. Wash out the jet in fast
evaporating thinner (Cellulose or similar). Blow through the jet from
the front, which should clear most blockages. Although the hole
through the jet is tiny, if you hold it up to the light you should be
able to see quite clearly if it is blocked or not. If in doubt, fit a new
jet - a spare is included with the toolkit. Do not use wire to clean the
jet as this can damage the precision hole and may upset the
delicate balance of the gas system. Reassemble in the reverse
order, putting a small amount of PTFE tape round the thread of the
jet. Ensure all connections are tight. When re-positioning the gas
jet holder 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 earlier, 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 there are no naked lights nearby.
To lubricate it, remove the knurled knob which is retained by a M3
socket grub screw (M 1.5 AF Allen key required) in the side.
Beneath the knob is a back-lash spring which will slide off the
spindle.
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