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5. INSTALLTION
5.1. MIG Welding Set Up & Operation
5.1.1 Fitting the spool
5.1.1.1 open the cover door for the wire feed compartment. Remove the wire spool retainer (23) by threading
off anti clockwise.
5.1.1.2 fit the 200mm diameter wire spool to the spool holder, ensuring the end of the wires exits towards the
wire feeder from the bottom of the spool. Refit the wire spool retainer (23) and tighten finger tight.
5.1.1.3 set the spool brake tension by rotating the adjustment screw (24) using an Allen wrench. Clockwise to
increase brake tension, anti-clockwise to decrease brake tension. The spool brake tension should be set so
that the spool can rotate freely, but does not continue to rotate once the wire feed stops. This may need to be
adjusted as the wire is used up and the spool weight decreases.
5.1.2 Loading wire feeder
5.1.2.1 release the wire feeder tension arm(19) by pivoting the wire feed tension adjuster(18) as pictured below
5.1.2.2 check the wire drive roller(21) groove matches the selected MIG wire type and size. The drive roller will
have two different sized grooves, the size of the groove in use is stamped on the side of the drive roller. For
flux cored ‘soft’ wire ,such as that used in gasless MIG welding, the dr
ive roller groove has a serrated profit.
For solid ‘hard’ MIG wire, the roller groove has
a ‘v’ shaped profile
5.1.2.3 the drive roller (21) is removed by threading the drive roller retainer (22) off in the anti-clockwise
direction. Once the correct drive roller profile is selected, re-fit the drive roller.
5.1.2.4 thread the MIG wire from the spool through the input guide tube (20), through the roller groove and into
the outlet guide tube
5.1.2.5 Replace the tension arm (19) and the tension adjustment (18). Double check the wire has located
correctly in the drive roller groove.
5.1.2.6 Adjusting wire feed tension: this is accomplished by winding the knob on the wire tension adjustment
arm (18). Clockwise will increase tension, anti-clockwise will decrease tension. There is a numbered scale on
the tensioner to indicate the position. Ideal tension should be as little as possible, while maintaining a
consistent wire feed with no drive roller slippage. Check all other possible causes of slippage, such as;
incorrect/ worn drive roller, worn/ damaged torch consumables, blocked/ damaged torch feed liner, before
increasing feed tension.
Warning!
- Before changing the feed roller or wire spool, ensure that the mains power is switched off
Warning!
- The use of excessive feed tension will cause rapid and premature wear of the drive roller,
the support bearing and the drive motor.
Содержание VARMIG 1605D PROFIMIG
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