JESS WELDING inoMIG 350, Operating Instructions Manual

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EN - 28
BA-0014 • 2020-06-05
11 Wire feeder DVK3/DVK4 inoMIG 350/400/500
11.2 DVK4 – 140 W motor
4-roller drive
Four interlocking wire feed rollers ensure that the welding wire is conveyed securely. The correct wire feed
roller with the corresponding groove must be inserted for the wire used in each case. Both sides of each wire
feed roller can be used. To turn or replace the wire feed rollers, unscrew the Allen screws
(C) . Ensure that
the groove of the wire feed rollers (B) and (E) is perfectly aligned with the wired guide tube (D) . The wire
feed rollers are to be inserted as follows for the processing of solid wire:
1
The upper wire feed rollers (B) with a smooth surface
2
The lower wire feed rollers (E) with a V-shaped groove according to the wire diameter to be processed
(0.8/1.0/1.2/1.6 mm).
The knurled groove is designed for the processing of flux-cored wire or tubular wire. The contact pressure of
the wire feed roller must be set with the twist handle
(A) in such a way that the wire is fed in uniformly when
the cable assembly is extended and that the wire slides rather than buckles when it is held at the contact tip
nozzle.
11.3 Wire guiding in the welding torch cable assembly
The friction resistance of the welding wire in the wire guide coil increases with the length of the cable
assembly. Therefore, the cable assembly should only be as long as necessary. When processing aluminium
welding wire, it is recommended that you replace the wire guide spiral with a
Teflon wire guide liner. The torch cable assembly must not exceed a length of 3 m. It is recommended that
you air-blast the wire guide spiral and the wire guide tube with compressed air after you finish welding one
roll of wire. The gliding quality of the wire guide spiral deteriorates in accordance with the amount of wire
that is fed and the wire properties. If wire guiding deteriorates noticeably, replace the wire guide spiral.
Fig. 18 140 W wire feed motor
A Twist handle
B Wire feed roller top
C Allen screw
D Wire guide tube
E Wire feed roller bottom
A
B
C
D
E