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21A
SETTING UP AND WELDING
11
Set up the control unit at the place of work, ensuring that the
mains switch is in the OFF position.
Plug the controller into a suitable three phase AC supply with a
32A motor rated fuse/breaker.
Plug the welding earth cables into the controller. Note that the
cable end weld plug has a peg which mates with the key slot in
the panel mounted socket.
IMPORTANT! Secure the connectors with a clockwise turn until
they lock. Failure to do this may result in damage to the
connectors during welding.
Attach the welding earth clamps to the work piece at
approximately 180° to each other; this will help prevent "arc-
blow" when welding takes place. Prior to fitting the clamps,
ensure that the contact area of the work piece is free from rust,
paint, grease etc., as this will result in a poor welding
connection.
Plug the welding pistol cable into the controller. Note that the
cable end weld plug has a peg which mates with the key slot in
the panel mounted socket.
IMPORTANT! Secure the connectors with a clockwise turn until
they lock. Failure to do this may result in damage to the
connectors during welding.
Plug the pistol control cable into the controller. Note that the
cable end plug and panel-mounting socket are keyed to prevent
incorrect fitting. Push the plug firmly home and twist the locking
ring to secure the plug in position.
Set up the welding pistol according to the instructions in the
operating guide supplied with the pistol.
