Lincoln Electric LF 52D Operator's Manual page 8

Controls and Operational Features
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Figure 1
Figure 2
1. EURO Socket: For connecting a welding gun
(for GMAW, FCAW process).
2. Quick Coupling Socket:
(supplies cool coolant to the welding gun).
3. Quick Coupling Socket: Coolant inlet (takes
warm coolant from the welding gun).
WARNING
Maximum coolant pressure is 5 bar.
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Coolant outlet
4. Output Socket for SMAW and CAG welding:
For connecting welding cable with an electrode
holder.
5. U22 User Interface: See „User Interface" section.
6. Gas Quick Coupling Socket: For connecting a
gas pipe.
The welding machine supports all suitable shielding
gases at a maximum pressure of 5,0 bar.
7. Control Socket: 5 pins socket for connecting a
control cable. The CAN protocol is used for
communication between the power source and
wire feeder.
8. Current Socket: For connecting a welding
cable.
9. Quick Coupling
(supplies cool coolant from cooler to the
welding machine).
10. Quick Coupling Socket: Coolant outlet (takes
warm coolant from welding machine to cooler).
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11. Gas Flow Regulator Plug: Gas Flow Regulator can
be purchased
section.
12. Switch: Cold Inch / Gas Purge: This switch allows
wire feeding (wire test) and gas flow (gas test)
without switching on the output voltage.
13. Transport Holder: For the feeder lifting and
transporting using a crane.
14. Wire Spool Holder: For wire spool with maximum
16kg weight. Holder allows mounting plastic, steel
and fiber spools on the 51mm spindle.
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WARNING
Socket: Coolant inlet
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Figure 3
separately. See "Accessories"
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