WIA Weldmatic 256, Руководство оператора

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Quality
•
Reliability
•
Performance
Weldmatic 256
Model No CP124-3, Iss B 05/09
15
Quality
•
Reliability
•
Performance
4 Feed roll pressure is not excessive. The
pressure should be just sufficient to feed
the wire evenly. Excessive pressure will
deform the electrode wire and make
feeding more difficult;
5 Consumable wire spool holder rotates
smoothly and that the braking action is
not excessive. The spool should only have
sufficient braking to prevent over run
when the motor stops. This also may be
conveniently checked each time the wire
is replenished;
7 Welding wire is straight and free of
buckles or ‘waviness’. To check, remove 2
or 3 metres of wire from the spool. Clamp
one end in a vice or similar, then holding
the other end pull the wire out straight.
Look down the length of the wire, any
buckles will be obvious. Buckled wire is
extremely difficult to feed reliably and
should be replaced;
8 Welding wire is free of surface rust.
Replace if rust is evident.
9 External Trouble Shooting
If the following checks do not
identify the fault condition, the
equipment should be returned to
a WIA Service agent. Phone 1300
300 884 for details of your nearest
service agent.
Power source has no output and no
wirefeed when gun switch is closed :
Power light on wirefeeder is off
1 Check equipment is connected to a
functional mains power outlet. Test outlet
using a known working appliance
2 Check the equipment is switched on, ie
‘Coarse’ switch is in position A, B or C.
3 Check the circuit breaker at the front of
the power source (press to reset)
4 Check the interconnecting lead is securely
plugged in at the welder and that the
lead is not damaged.
Power light on wirefeeder is on
1 The gun switch circuit is incomplete.
• Check the gun switch for continuity
with an ohm meter when the switch is
pressed. Replace if faulty
• Check the 2 pin receptacles in the MIG
gun adaptor are making contact with
the mating pins from the gun end.
There is wirefeed but no output
voltage when gun switch is closed:
1 Power source may have overheated.
• The Weldmatic 256 welding power
source incorporates an in-built over-
temperature thermostat which will