Instructions For Use; Feed Rools; Interconnections; Gas - Air Liquide DV YARD Instructions For Safety, Use And Mainteance

EN

3 - INSTRUCTIONS FOR USE

3.1 - FEED ROOLS

Before connecting the electrical and gas supplies, ensure that the
equipment is set for the correct type and size of wire to be used, Check
that the diameter stamped on the feed roll is the same than the diameter
of the wire used.

3.2 - INTERCONNECTIONS

While the machine is switched off, connect the wire feeder to the power
source with the fit connection cable, It is advisable to layout the lead as
straight as possible.

3.3 - GAS

Connect the gas hose placed on the rear of the wire feeder with the gas
manometer of the gas cylinder.
PRESSURE REDUCER
GAS TUBE

3.4 - TORCH

Check that the contact tip mounted on the torch head is fit for the wire
used, Remove the contact tip and using the torch button to feed the wire
till it comes out of the torch itself, Refit the contact tip and ensure it is well
tightened.

3.5 - REVERSE POLARITY

For some flux cored wire without gas or specifics and recharging -
Connect the power cable from the negative terminal of the MMA power
source and the input of DV YARD.- Connect the cable with clamp on the
positive terminal of the MMA power source and the pieces to be welded.
INSTRUCTIONS FOR USE - HUB ASSEMBLY MOUNTING

4 - HUB ASSEMBLY MOUNTING

4.1 - PROCEDURE

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4.2 - SLOPE UP start welding.
The operator can choose 4 positions for SLOPE UP start welding:
Keep pressed recall A/V button and in the same time press Test gas
button , on the front panel you can read this number 111 , 222, 333, 444
these numbers suggest a different time for a small delay for start welding.
1 step 111 short time 0,4 s
2 step 222 medium time 0,75 s
3 step 333 long time 1,2 s
4 step 444 long time 1,6 s
6 - EN
Remove the hand nut from the hub assembly wire guide.
Place the wire reel on the hub so that the wire will be drawn off from
the top.
Release the end of the wire, but do not allow the wire to loose, cut off
the kinked portion of the wire removing any deformation.
This must be done each time that the wire is referred through the
equipment.
Adjust the hub assembly by using the screw inside the hub assembly
wire guide, so as the prevent the wire reel over-run once the motor of
the wire feeder stop. Do not tighten the hub assembly too much. Too
much pressure will cause excessive drag.
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2
By the fitting lever release the pressure roll
bearing and lift it. Thread the wire through the fitting inlet guide
and feed it out of the central adaptor.
Lower the pressure roll , refit it into the initial position by the
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lever , adjusting the pressure with the knob. Minimum pressure
2
is sufficient so as not to allow the feeding rolls to slip. Excessive
pressure will cause wire deformations and entanglements inside
the liner (in case of aluminium wires) and generally early wear-and-
tear of the wire feeding motor bushing. A scanty pressure will cause
welding uneven or irregular.
Connect the torch to the fitting adaptor and ensure that the wire is
positively fed inside the torch lead liner. Remove the nozzle from
the torch extremity and unscrew the contact tip. Feed the wire till it
comes out of the torch.
Refit the contact tip keeping in mind that it must have the same
diameter of the wire diameter used.
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revolving on ball
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