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Contents
General .......................................................................................................................................................... 2
Product concept ........................................................................................................................................ 2
Options ...................................................................................................................................................... 2
Warning notices affixed to the device ........................................................................................................ 3
Control elements and connections ................................................................................................................. 4
General ..................................................................................................................................................... 4
Control elements and connections on front and on left side ..................................................................... 4
Control elements and connections on right side ....................................................................................... 6
Installation ...................................................................................................................................................... 7
Safety ........................................................................................................................................................ 7
Utilisation in accordance with „intended purpose“ ..................................................................................... 7
Fitting the welding torch ............................................................................................................................ 7
Fastening the interconnecting hosepack to the wire-feed unit .................................................................. 8
Connecting the interconnecting hosepack to the wire-feed unit ................................................................ 8
Routing the interconnecting hosepack to the wire-feed unit ...................................................................... 9
Connecting the interconnecting hosepack to the power source ................................................................ 9
Installing the wire infeed tube, wire guide insert and steel capillary tube ..................................................... 10
Safety ...................................................................................................................................................... 10
Wire infeed tube, wire guide insert and capillary tube ............................................................................. 10
Removing the feed roller ......................................................................................................................... 10
Replacing the capillary tube ..................................................................................................................... 11
Replacing the wire guide insert ................................................................................................................ 11
Replacing the wire infeed tube ................................................................................................................ 12
Fitting the feed rollers .............................................................................................................................. 12
Inserting the wirespool, inserting the basket-type spool ............................................................................... 13
Safety ...................................................................................................................................................... 13
Inserting the wirespool ............................................................................................................................ 13
Inserting the basket-type spool ............................................................................................................... 13
Adjusting the brake ...................................................................................................................................... 14
General ................................................................................................................................................... 14
Adjusting the brake ................................................................................................................................. 14
Design of the brake ................................................................................................................................. 15
Inserting/replacing feed rollers ..................................................................................................................... 16
General ................................................................................................................................................... 16
USA wire-feed units ................................................................................................................................. 16
Inserting/replacing feed rollers ................................................................................................................ 16
Feeding in the wire electrode ....................................................................................................................... 17
Feeding in the wire electrode .................................................................................................................. 17
Setting the contact pressure ................................................................................................................... 18
Care, maintenance and disposal .................................................................................................................. 19
General ................................................................................................................................................... 19
Every start-up .......................................................................................................................................... 19
Every 6 months ....................................................................................................................................... 19
Disposal .................................................................................................................................................. 19
Technical data .............................................................................................................................................. 20
VR 4000 Yard wire-feed unit ................................................................................................................... 20
Spare parts list
Fronius Worldwide
