CHIEF MI200T - Symptoms; Reasons; Solutions

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6. SYMPTOMS / REASONS / SOLUTIONS
SYMPTOMS
REASONS
SOLUTIONS
Clamp
The Spot weld doesn’t hold /
is not good
The caps used are worn
out/faulty
Replace the caps.
Insufficient grinding /
preparation of the workpiece
Sand and clean the metal
sheet again
.
The arm selected doesn’t
match the one installed
Check the arm with the
software
The spotter makes holes in
the steel
The caps used are worn
out/faulty
Replace the caps
Not enough pressure
Check the compressed air
network
(min. 7 bar)
Insufficient preparation of
the work-piece
Sand and clean the metal
sheet again
Lack of power on the clamp
Power supply issue
Check the stability of
voltage delivered
Bad tightening of the C
arm.
Check procedure for
tightening C arm
The caps used are worn
out/faulty
Replace the caps.
Unit overheats quickly /
swelling of the power cable
The arm C badly cooled
Check the connection of the
C Arm to the cooling
section of the clamp
Welding Gun
Overheating of the gun
The spot weld made doesn’t
hold
Gun sheath outside the
gun
.
The gun sheath should
come inside the gun for the
air cooling to cool inside the
gun
Bad tightening of the
mandrel
.
Check the tightening of the
mandrel, the star holder,
and the state of the sheath..
The weld is not good
Bad contact of the earth
clamp
Check the earth clamp is
securely connected to the
metal sheet
Lack of power with the gun
Bad contact of the earth
clamp
Check the ground
connection