Cloos NexT 452 AC, Руководство по эксплуатации

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The wire can be transported by pressing the welding torch trigger, howev-
er, in this case, the wire electrode and the contact tip are energised by the
complete open-circuit voltage! When ignition monitoring is switched on,
an error message is generated after approx. 2 seconds preventing further
wire feeding.
The pressure roller clips (arms) must only be sufficiently pressed against
the pressure unit as is necessary for the relevant wire type and size. The
adjustment is reproducible. The pressure roller clips (arms) swing out for
threading the wire or exchanging the wire drive rollers. Both pressure
units should be set to the same value. Further information can be found in
block 5 of these operating instructions.
The brake of the wire coil holder can be adjusted by means of the tighten-
ing screw. The wire coil should not move when the motor brakes to prevent
that wire windings fall off the coil and kinking or short circuits occur.
If the brake does no longer work, the brake disk must be replaced!
The wire coil must be secured on the wire coil holder with the locking but-
ton to prevent it falling off.
Cooling
If an external cooling is connected, make sure that it is recognised by the
welding power source.
The coolant can be filled in the cooling system after having connected the
welding torch.
Always use a coolant approved by CLOOS! It is not allowed to use chlorinat-
ed or mineral water because of its electrical conductivity.
Via filler neck the coolant is filled into the storage tank. The tank can be filled
up to approx. 90%. After filling a small expansion space should remain to
take up coolant which returns from the connection cable assemblies.
The filling level can be checked at the sight glass (indicator) on the front.
By opening the drain cock at the rear of the machine the pipe lines are
vented and the coolant is brought to the pump.
The coolant hoses are filled when the pump runs. When using very long
cable assemblies, the resulting loss of coolant in the storage tank must be
replenished. Please note the maximum coolant quantity (level)!
The cover must always be screwed down to prevent unnecessary contami-
nation of the coolant!
Liquid-cooled welding torches must always be operated with a coolant.
Otherwise an overheating or damage of the welding torch may occur.
If a gas-cooled welding torch is operated on a welding machine with exter-
nal cooling, it is necessary to bridge the coolant circuit by means of a hose
in order to avoid that the pump is damaged (overheating). If an external
cooling is connected, make sure that it is recognised by the welding power
source. It can be configured in the operating module.
WARNING!
CAUTION!
ATTENTION!
ATTENTION!