P
ERIODICAL
I
NSPECTION
M
AINTENANCE
AND
I
NSPECTION
C
HAPTER
8
140
Periodical inspection item
Inspection work
Grounding wire
•
Refer to the description for the same item in "8.2
-
Daily Inspection
-
".
Each cable
(Primary power cable for facility side,
cables for base metal side/torch
side, torch cable, voltage detection
cable, etc.)
Welding torch
•
Check that there is no deterioration, damage or other abnormality in consumable parts of the
welding torch. Abnormality in consumable parts can prevent smooth wire introduction.
Cleaning inside the welding power
source
•
Blow with dry compressed air from the front slit (ventilation hole) to the back side to remove dust
inside the welding power source.
Dust accumulating on the heat sink of transistor and rectifier may prevent heat radiation,
adversely affecting the transistor. Also, accumulation of dusts between the winding of transducer
could deteriorate insulation.
Cleaning inside the welding power
source
(When an abnormal temperature
error code is displayed)
•
Dust accumulating on the fin or winding of heat sink can cause insufficient heat radiation.
Remove the left side panel and fan frame and check the dirt inside. If there is heavy dirt, blow the
fin and coils of heat sink directly with compressed air to remove dust inside.
WB-P402L
WB-P502L
Compressed air
Heat sink
Fan frame
Fan frame
Heat sink
Fan frame
Connector
Fan frame
Fan
Connector
Fan
