Lincoln Electric LF 52Ds Operator's Manual page 32

Changing Driving Rolls
WARNING
Turn the input power off before installation or changing
drive rolls.
Wire Feeder LF 52Ds is equipped with drive roll
V1.0/V1.2 for cored wires. For others wires and sizes it is
required to install proper drive rolls kit (see "Accessories"
chapter) and follow instruction:

Turn the input power OFF.

Unlock 4 rolls by turning 4 Quick-Change Carrier Gear
[34].

Release the pressure roll levers [35].

Change the drive rolls [33] corresponding to the used
wire.
WARNING
Be sure that the gun liner and contact tip are also size to
match the selected wire size.
WARNING
For wires with the diameter larger than 1.6mm, the
following parts have to be changed:

The guide tube of the feeding console [31] and [32].

The guide tube of the Euro Socket [30].

Lock 4 new rolls by turning 4 Quick-Change Carrier
Gear [34].

Insert the wire through the guide tube, over the roller
and through the guide tube of Euro Socket into liner of
gun. The wire can be pushed into the liner manually
for a few centimeters, and should feed easily and
without any force.

Lock the pressure roll levers [35].
35
30
34
Figure 16
English
35
31
32
33
33 33 33
Gas Connection

CYLINDER may explode if damaged.

Always fix the gas cylinder securely in an
upright position, against a cylinder wall
rack or purpose-made cylinder cart.

Keep cylinder away from areas where it
may be damaged, heated or electrical
circuits to prevent possible explosion or
fire.

Keep cylinder away from welding or other
live electrical circuits.

Never lift welder with cylinder attached.

Never allow welding electrode to touch
cylinder.

Build up of shielding gas may harm health
or kill. Use in a well-ventilated area to
avoid gas accumulation.

Close the gas cylinder valves thoroughly
when not in use to avoid leaks.
Welding machine supports all suitable shielding gases at
a maximum pressure of 5,0 bar.
Before use, make sure that the gas cylinder contains gas
suitable for the intended purpose.

Turn off input power at the welding power source.

Install a proper gas flow regulator to the gas cylinder.

Connect the gas hose to the regulator using the hose
clamp.

The other end of gas hose connect to the gas
connector on the power source rear panel or directly
to the quick connector located on the rear panel of the
wire feeder [8]. More details you will found in power
source instruction manual.

Connect by dedicated interconnection cable (see
„Accessories" chapter) wire feeder and power source.

Turn on input power at the welding power source.

Open the gas cylinder valve.

Adjust the shielding gas flow of the gas regulator.

Check gas flow with Gas Purge Switch [7].
To weld GMAW process with CO
heater should be used.
30
WARNING
WARNING
WARNING
WARNING
shielding gas, CO
2
English
gas
2