Pro Spot PR-8 - D4. Earth Connection Procedure

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Pro Spot PR-8
GB/US/2000-08
PRO SPOT
D. Operation
IMPORTANT! (For Operating Modes 1,
2 and 3): The earth connection must be
secured to the part to be welded, and not
to the metal beneath it. Make the con-
nection as close to the working area (1)
as possible.
SUPPORTING SHEET
IMPORTANT! (For Operating Mode 4):
The earth connection must be secured
to the supporting part that is to be weld-
ed to the new part. Make the connec-
tion as close to the working area (1) as
possible.
SUPPORTING SHEET
Part
(1)
Part
(1)
D4. Fitting the earth connection
a) For Operating Modes 1, 2 and 3
- Carefully grind an area of 7 x 4 cm and
temporarily secure the earth connection
to the workpiece with a clamp.
- Grind an area of 7 x 4 cm on the body
sheet, choosing an area where it is flat-
test. See diagram A.
- Spot-weld an earth connection stud in the
centre of the ground area, using Operat-
ing Mode 3, level 7 or 8. Make sure that
the stud cannot be twisted or broken off.
- Secure the earth connection to the stud
with the hand bolt.
b) For Operating Mode 4
- Carefully grind an area of 7 x 4 cm on
the load-carrying part of the body and
temporarily secure the earth connection
to it with a clamp.
- Grind an area of 7 x 4 cm on the load-
bearing body sheet, choosing an area
where it is flattest. See diagram B.
- Spot-weld an earth connection stud in
the centre of the ground area, using
Operating Mode 3, level 7 or 8. Make
sure that the stud cannot be twisted or
broken off.