Maintenance; Daily Inspection - Panasonic YD-400VP1YHD Operating Instructions Manual

9. Maintenance

9. Maintenance
WARNING
Prior to working on internal parts, such
as switching work, turn off power at the
power distribution box and ensure
safety. After the switching work, put the
panels back in place.
Do not touch any live parts.

Otherwise, it may result in electric
shock or death or serious injury.
To ensure human safety and stable arc, inspec-
tion should be conducted in the way suitable to
individual work environment.
With daily check, do simple and quick check and
with periodical check, check closely in every
detail.
● Welding power source (This product)
Part
• Check equipment, such as fuse holder,
for wear or damage.
• Check installation of equipment for
Front
looseness.
panel
• Check LEDs if they function (turns on/
off) correctly.
• Check if cooling fan rotates smoothly.
•
Check equipment, such as fuse holder
and jig for wear or damage.
• Check if input cables are fixed with the
saddle.
• Check if input terminal cover is
Rear
properly installed.
panel
• Check installation of equipment, such
as fuse holder and jig, and covers for
tightness.
• Check if cooling fan functions
correctly.
• Check installation of top panel and
Periph-
eral
cases for looseness.
• Check appearance for any signs of
tarnish or heat generation.
• Check power source after turning
Over-
all
power on or during welding operation
for abnormal vibration, noise or odor.
128
Check points

9.1 Daily inspection

• Daily inspection is very important to make the
most of performance of the product and to
ensure safety of daily operation.
• Check the items shown in the following table
as daily check, and clean/replace parts if
needed.
• As replacement parts, make sure to use our
genuine parts for Panasonic welding machines
to keep its performance and functions.
● Cables
Part
• Check that input ground connections
are secured at power source.
Ground cable
• Check that ground connections are
secured at base metal.
• Check cable jackets for wear and
damage.
• Check that no heavy item is placed on
the cable.
Input cable
• Check that terminal connections are
secured at load side terminals of
distribution box and at input
terminals of power source.
• Check cable jackets for wear and
damage.
• Check conductive parts other than
that of base metal if they are
Output
exposed.
power cable
• Check that no heavy item is placed on
the cable.
• Check connections for looseness.
• Check that connectors are properly
connected.
• Check cable jackets for wear and
Control cable
damage.
• Check that no heavy item is placed on
the cable.
Check points
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