Service manual

6
Service Procedures
20
© Moffat Ltd, September 2008
Revision 1/
Moffat Cobra Series CS9 - Gas Salamander
1) Turn 'Off' the gas supply at the isolation
valve.
2) Remove the control panels, (Refer Item
6.1.1).
3) Remove the 2 screws holding shaft plate to
gas control body and remove control shaft
and plate. (Refer Figure 6.3.1a). Note
orientation of shaft for correct re-assembly.
6.3.1 Gas Control Valve
Re-Greasing
6.3 Adjustment / Calibration
4) Using needle nose pliers or similar, pull out
gas control spindle, again noting its
orientation.
5) Apply a suitable high temperature gas cock
grease or lubricant such as ROCOL - A.S.P
(Anti scuffing paste) to the outside of the
spindle.
Figure 6.3.1a
Spindle
Figure 6.3.1b
Two
Screws
Figure 6.3.2
6.3.2 Low Fire Screw Adjustment
1) Light the burner and turn the control to the
low flame position.
2) Pull off the gas control knob.
3) Adjust low fire screw (located at the top left
of the gas valve) to achieve an even, low
burn across the burner.
The recommended factory settings are:
LPG ¼ turn out.
Nat 1 turn out.
4) Paint-seal the low fire screw, and refit the
control knobs to the gas control valves.
6) Replace spindle and re-assemble the gas
control valve in reverse order.
7) Refit the control panel to the appliance and
secure with 2 screws.
8) Refit the control knobs to the gas control
valve spindles.
Low Fire Screw
Adjustment