Kuppersbusch MW 800.0, Service Manual

Page: 6 / 39

6 Service Manual MWG 1000
Only for internal use
2. Repair and maintenance
IMPORTANT NOTES
All work and repairs on the components of microwave ovens may only be carried out
by a qualified service technician who has been trained by the manufacturer and
authorized to carry out such work.
Safety can be increased by using special tools such a TORX screwdriver and
measuring instruments to test microwave leakage.
In order to prevent accidents and damage to the appliance, the following rules should
be observed when carrying out repairs:
♦
Before opening up the case disconnect the appliance from the mains or switch
off the main switch of the appliance. Wait at least 3 minutes.
♦
Before beginning the work, the technician should take off his watch and, if
necessary, his metal bracelets. Never touch high-tension parts and wires.
♦
Before checking or exchanging, discharge the high-voltage capacitor for the
appliance housing with an insulated conductor. Before shorting the capacitor
terminal make sure that the conductor to the housing has been earthed.
♦
Do not use a usual voltmeter to measure the high tension.
The following points must be checked before the appliance is reconnected to the mains:
♦
that all internal terminals have been properly connected;
♦
that all wires are insulated and that they do not come into contact with the door
of the appliance, with the case or with any sharp edges;
♦
that all grounding terminals are in perfect condition, electrically and
mechanically;
♦
that no changes have been made to the built-in safety devices and that they are
not manipulated in any other way;
♦
that all spare parts conform to the manufacturers specifications.