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Equipment care / maintenance / repair
Chapter 7
02.08.2011
Working Instructions WIDOS 4900 CNC 3.5
Page 43 of 68
7.6. Maintenance, inspection and repair
All maintenance and repair works have to be basically performed with the machine
in off position.
During this the machine has to be secured against unauthorized switching on.
Prescribed maintenance and inspection works should be performed in time.
The DVS gives the advice of inspection works after 1 year.
For machines with a specially high usage percentage the testing cycle should be
shortened.
The works should be performed at the WIDOS GmbH company or by an
authorized partner.
•
The operating staff has to be informed before the starting of the maintenance works.
•
Check the tightness of all screwed connections and tighten again if need be.
•
Check the function of the safety devices after completion of the maintenance works.
Check especially insulation and tension resistance and protective cables resistance.
7.7. Saving the welding data
The battery buffer for the CNC-memory (RAM) goes empty.
Without current connection, the batteries necessary for the storage of the welding
data work for about 1 month.
Remedy
: connect the machine to power, switch it on and leave it switched on for
24 hours in order to completely load the batteries.
Please make sure that before a longer non operation period of the machine the
welding data are read out so that they can not get lost.
7.8. Fuse for overload safety device
The control unit does
not
function although the
control unit is connected to the power supply,
the main switch is on, and the Emergency-Stop
has
not
been pressed and locked.
In the case above the fuse (overload
protection) must be checked.
For this purpose unscrew the righthand cover
plate, check the fuse (F1) and switch it on
again, if necessary.
fuse (F1)
