V
-
21A
11
SET UP AND WELDING
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A1 & A2 MODELS
With the correct stud to be welded fitted
into the chuck, loosen the thumbscrews
and slide the foot assembly until the stud
is protruding past the nose cone to the
desired distance. Once this is set, re
-
tighten the thumbscrews.
Check the centrality of the stud in the nose cone
by looking straight down the centre of the pistol
shaft. If the stud appears to be off
-
centre. Use a
3mm hex key to loosen the foot screws on the
foot adaptor and re
-
position the adaptor on the
legs (the holes in the adaptor are designed to
allow adjustment). Re
-
tighten the screws once the
adjustment has been made.
The next step is to set the required lift for
welding. This must be done in three stages to
ensure that the lift is set properly. Stage one is
to back the lift off so that the pistol can be
properly positioned to set the lift. To back the
lift off, twist the rear end cap adjuster anti
-
clockwise until the pistol indicator is in the MAX
position.
Stage two is to
“
zero
”
the lift. NOTE Ensure that the pistol is not
connected to the controller whilst performing this stage. To do this
the pistol (with a stud loaded) needs to be pressed into the position
as if a weld is about to take place with the shaft moving back until the
nose cone is hard against the surface. With the pistol held firmly in
this position, turn the rear end cap adjuster clockwise and continue
to turn it until it reaches the zero position. This is the point where
further turning of the adjuster will start to force the stud forward,
lifting the nose cone away from the surface. This is the zero position.
