·
MIG-160PI/MIG-180PI/MIG-200PI/MIG-250PI
- 13 -
Position
Checking keys
Remarks
Pressing
arm
1.If put the arm to the suitable indicating
level.
（
notes
：
not to damage wire less than
Ф
1.0mm
）
Lead to unstable arc and wire
sending.
Wire
Lead
Tube
1.If powder or residue store up in the mouth
of the tube.
Clean the residue and check the
reason and solve it.
2.Wire diameter and the tube inner diameter
match or not
If not match, lead to unstable arc
and residue.
3.If the tube mouth center matches the wire
wheel slot center or not.
If unmatched, lead to unstable
arc and residue.
Wire
wheel
1.Wire diameter matches the wheel’s
requirement
2.If the wheel slot blocked
1.Lead to unstable arc and
residue, and block wire tube.
2.Change new one if necessary
Pressure
wheel
Check the stability of its move, and
wearing-out of pressed wire, the narrowing
of its contact surface
Lead to unstable arc and wire
sending.
Position
Checking keys
Remarks
Torch
cable
1.If torch cable over bended.
2.If the metal connecting point of mobile plug loosen
1. Cause poor wire
sending
2.Unstable arc if cable
over bended.
Output
cable
1. Wearing-out of the cable insulated material.
2.Cable connecting head naked (insulation damage),
or loosen (the end of power supply, and cable of
main material connecting point.)
For life security and
stable welding, adopt
suitable method to
check according to
working place.
Simple check daily
Careful
and
in-depth check on
fixed period
Input
cable
1.If the connect of power supply input, protective
equipment input and the output end fixed or not.
2.If the security equipment cable reliably connected.
3.If the power input end cable fixed
4.If the input cable is worn out and bares the
conductor.
Earth
cable
1.If the earth cable that connects the power supply is
broken and connect tightly.
2. If the earth cable that connects the main part is
broken and connects tightly.
To prevent creep age
and
insure
security,
please
make
daily
check.
CABLE