16 Maintenance and Repair
Warning !
DAILY MAINTENANCE
Page 30
Expressweld MasterMIG 500W
Proper usage and performing periodical maintenance fully will enable high
performance and important for long economical life. Maintenance, repair and service
works should only performed by the qualified personnel who had the required
training!
Mains current of the welding machine should be disconnected and power cable
should be unplugged while performing maintenance and service.
- Follow general personal safety and fire safety rules related to the welding procedures.
Clean metal splashings from gas nozzle. These may cause weakness in shielding gas
flow that covers molten welding metal.
Clean the gas nozzle at the end of welding torch against splashing with GMAW spray.
For this procedure you can use our "Focusweld" welding spray. Never attempt to clean
accumulated burrs by hitting the end of torch to a hard surface.
If you notice any wear and crush on welding wire, check if the press force of wire drive
reels is suitable for the wire diameter and if you notice over pressure, decrease the
press force setting as appropriate.
If wire drive reels are worn or damaged, you cannot achieve a smooth wire feed.
Frequently check the reels and if there is any wear replace with the new ones.
Before installing a new welding wire reel, remove the gas nozzle and contact nozzle
and clean the spiral with compressed air. This procedure will prevent the sticking of the
wire.
Check the welding torch and clean if necessary.
Make sure that the welding current setting button located in front panel and On/Off
switch located in rear panel are in place and properly operating. If current setting
button is not installed properly and if On/Off switch is not exactly in place and is not
operating smoothly, contact with the service.
Check if there is vibration, whistle or abnormal smell after starting the machine. If there
is any problem try to find the source of the problem, if there is a problem due to
environment eliminate this factor, if the problem source is the machine do not interfere
and contact with the service after disconneting from the mains.
Make sure that the welding current is compatible with set current value. If ther is any
difference, perform the necessary adjustment since it will affect the welding procedure.
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