2
1. GENERAL NOTES
1.1 Warning for models which connect to mains electrical power, before exposing any of the
internal electrical wiring the appliance must be disconnected from electrical power by
unplugging the service cord from the electrical outlet. For models which connect to battery
power, before exposing any of the internal electrical wiring the appliance must be remove the
battery also.
1.2 Any servicing carried out on gas containing components where seals are broken including
manifold, regulator, valves and burner supply pipes should be followed by a leak test. Gross
leaks can be detected by connecting a manometer to the regulator test point, pressurising the
manifold and then shutting off the gas with a ball valve. A falling manometer reading indicates
a leak. Small leaks can be located with soap and water applied at the connection.
1.3 Burner supply pipes leading from the burner control to the burner should have their
compression fittings tightened firmly
but not over tightened
(If a torque spanner is used set
this to 10 ( 12Nm). If the tubes are damaged they should be replaced. The soundness of the
connections on the burner supply tubes can be tested by blocking the injector orifice
temporarily, eg. by fitting an injector that has been blocked and leak testing the fittings.
1.4 When reassembling the appliance
any earth leads which have been disconnected must be
re-connected.
1.5 Reassembly procedures are a reversal of removal procedures.
1.6 Replace the spare part with original spare parts. The modify part must not be used.
1.7 All the screws in this appliance have been designed for difference purpose. They must be use
in the right position and must be the right dimension. If there are any differences from the
original design they may have the serious accident.
Summary of Contents for EGG7422S
Page 1: ...SERVICE MANUAL ...
Page 9: ...8 6 WIRING DIAGRAM ...
Page 12: ...11 9 SPARE PARTS ...
Page 15: ...14 ...
Page 18: ...17 ...
Page 21: ...20 ...