LOKERMANN GRAND MIG 160, Руководство пользователя

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3.2
Duty cycle
and
Over-heat
The letter “X” stands for Duty Cycle, which is defined as the portion of the time a welding machine
can weld continuously with it’s rated output current within a certain time cycle (10 minutes).
The relation between the duty cycle “X” and the output welding current “I” is shown as the right figure.
If the welding machine is overheating, the IGBT over-heat protection sensing will send a signal to the
welding machine control unit to cut the output welding current OFF and light the over-heat pilot lamp
on the front panel. In that case, the machine should not be welding for 10-15 minutes to cool down
with the fanrunning. When operating the machine again, the welding output current or the duty
cycle should be reduced.
3.3
Equipment
Connection
(1) Insert the earth cable plug into the negative socket on the front of the machine and tighten it.
(2) Plug the welding torch into the MIG torch connection socket on the front panel and tighten it.
IMPORTANT : When connecting the torch be sure to tighten the connection. A loose connection
can result in the connector arcing and damaging the machine and gun connector.
(3) Connect the gas regulator to the Gas Cylinder and connect the gas line to the Gas Regulator.
Check for Leaks!
(4) Connect the gas line to gas connector on the rear panel. Check for Leaks!
(5) Connect the power cable of welding machine with the output switch in electric box on site.
(6) Place the Wire Spool onto the Spool Holder. Snip the wire from the spool being sure to hold the
wire to prevent rapid uncoiling. Feed the wire into the wire feeder inlet guide tube through to the
drive roller.
(7) Carefully feed the wire over the drive roller into the outlet guide tube, feed through about 150mm
into the torch receptacle. Check that the drive roller size is compatible with the wire diameter,
replace the roller if necessary.
(8) Align the wire into the groove of the drive roller and close down the top roller making sure the wire
is in the groove of the bottom drive roller, lock the pressure arm into place. Apply a medium
amount of pressure to the drive roller.