OWNER’S MANUAL - 16 - YF-48N A/0
DAILY CHECKING
Position
Checking keys
Remarks
Pressing arm
If put the arm to the suitable indicating level
Lead to unstable arc and wire sending
Wire lead tube
If powder or residue store up in the mouth of the
tube
Clean the residue and check the reason
and solve it
Wire diameter and the tube inner diameter match
or not
If not match, lead to unstable arc and
residue
If the tube mouth center matches the wire wheel
slot center or not. (Eyeballing)
If unmatched, lead to unstable arc and
residue
Wire wheel
Wire diameter matches the wheel’s requirement
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 connection between the plug and the
power socket is firm
2. If the power input end cable fixed
3. If the input cable is worn out and bares the
conductor
Earth cable
If the earth cable that connects the main part
is broken and connects tightly
CABLE
WIRE SENDING MACHINE
Summary of Contents for MIG-350
Page 1: ......
Page 12: ...OWNER S MANUAL 11 YF 48N A 0 CIRCUIT SCHEMATIC DIAGRAM...