LORCH T 180 AC BasicPlus, Operation Manual

Page: 34 / 242

Before commissioning
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When converting the torch to another elec-
trode diameter, please observe the following.
‰ The collet 52, collet body 53 and electrode 50 must have
the same diameter.
‰
The gas nozzle 54 must be matched to the electrode di-
ameter.
Connecting the ground cable
 Connect the component guide to the connection socket
component guide 5 and secure the cable by turning to the
right.
Fix the ground clamp
Fig. 4: Connecting the ground cable - Correct!
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Mount the ground clamp in the immediate vicinity of the
welding point such that the welding current cannot find
its own way via machine components, ball bearings or
electrical circuits.
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Connect the ground clamp firmly to the welding bench or
the workpiece.
Fig. 5: Connecting the ground cable - Incorrect!
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Do not place the ground clamp on the welding machine or
the gas cylinder; otherwise the welding current will be car-
ried via the protective conductors and it will destroy these.
Connect the power supply
The machine is suitable for operation on the mains supply or
on a current generator.
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Plug the mains plug into the appropriate socket.
The mains voltage and tolerance as well as the
fuse protection must correspond to the techni-
cal specifications. (see Technical Data)
Connect the shielding gas cylinder
58
62
56
55
57
61
60
59
Fig. 6: Shielding gas cylinder
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Secure the shielding gas cylinder 56,e.g. by using a secur-
ing chain 57.
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Briefly open the gas cylinder valve 55 several times in or-
der to blow out any dirt particles present.
 Connect the pressure reducer 60 to the shielding gas cyl-
inder 56.
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Screw the shielding gas hose 61 onto the pressure reducer
60 and open the shielding gas cylinder 56.
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Start the “gas test” and set the gas quantity with the set-
ting screw 62 of the pressure reducer.
9 The gas quantity is indicated on the flow meter 59.
Rule of thumb:
Gas nozzle size = litres/min.
9
The cylinder content is indicated on the content manom-
eter 58.