ESAB LTR 160, Service Manual

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OPERATION
1. Mains power switch on/off
2. Yellow LED, indicates overload
3. White indicating lamp, lights when
mains power is on
4. Slope down 0.1 -- 10 seconds
5. Welding methode selector switch
6. Current setting
7. Gas post--flow, 5 -- 20 seconds
8. Remote control connection
9. Dust filter
10. Gas nipple
11. Connection for TIG torch
12. Connection for return current cable when TIG welding and for welding current cable
when MMA welding
13. 2/4--stroke selector switch
14. Remote control switch
15. Connection for return current cable when MMA welding
S
Using the remote control socket on the machine the current can be remotely regulated in
TIG and MMA modes.
S
PHA5 remote control unit allows use of pulsed current in TIG mode.
To take your mind off the risk of overloading the machine it has been equipped with an
integrated thermostat that trips if the temperature becomes too high.
When this occurs the welding current is cut out and the yellow indicating lamp comes on.
When the temperature has dropped the thermostat automatically resets.
Mode = HF
When the torch trigger is pressed the gas starts flowing. The high frequency unit is switched
on and produces a spark between the electrode and the work piece, which ionises the gas and
ignites the arc. Once the arc is stable the HF unit is automatically switched off. It is also
switched off if the arc has not struck after 0.5 seconds.
Mode = MMA
In this mode the machine is set up for welding with coated electrodes. The HF unit and
Lift--Arc are disabled and the Hot--start unit is now activated to give a higher current during
striking.