Periodic Inspection; Inspection Items; Cleaning Fin - Panasonic YD-400VP1YHD Operating Instructions Manual

9.2 Periodic inspection

CAUTION
T ensure safe inspection work, make
sure to wear protective equipment prop-
erly.
Improper handling of the product and

crack of the plastic parts due to time
degradation can cause physical injury.
Attention
================================
Prior to touching a P.C. Board, dis-
charge static electricity through metallic
part, such as case. Otherwise, electric
parts may damaged.
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お願い
Attention
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Handling plastic components
Plastic parts can be melt or deformed if it is
exposed to an organic solvent such as benzine,
toluene, gasoline and heating oil. To clean the
parts, gently wipe them with a soft cloth lightly
soaked in water or mild solution with neutral
detergent and wring it.
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お願い
• Only trained and/or skilled personnel who
properly understand welding machine and
electric circuit repair work should perform
periodic inspection
• After completing welding operation, leave it
at least five minutes to cool down the inside
of the welding power source before perform-
ing internal inspection.
• Provide fence or the like to prevent any unau-
thorized personnel from entering in and
around the welding work area carelessly.
• Daily inspection is not enough to maintain
performance of the product for years.
• With periodic check, check closely in every
details including internal check and cleaning.
• Perform the periodic check every sixth month.
If the surrounding environment has fine dust
and greasy fumes more than usual, perform
the periodic inspection every third month.
WMD078TE0PAA07

9.3 Inspection items

Observe the following instructions to
ensure safety.
Only trained and/or skilled personnel

who properly understand welding
machine and electric circuit repair
work should perform periodic inspec-
tion should perform inspection work.
After completing welding operation,

leave it at least five minutes to cool
down the inside of the welding power
source before performing internal
inspection.
Prior to removing the case, provide

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fence around the product or the like
to prevent any personnel from coming
close to the product carelessly.
When blowing compressed air to the
cooling fan, keep off rotation part of the
====
cooling fan, otherwise hand, fingers,
hair or part of my clothes may be caught
by the rotating parts resulting in injury.
Here are standard check items. It is recom-
mended to add check items of your own depend-
ing on work environment and usage.

9.3.1 Cleaning fin

As you use the product longer, the fin that pro-
motes heat loss of semiconductor gets clogged
causing temperature rise inside the product,
resulting in temperature error stop. Therefore,
periodic cleaning of fin is recommended.
CAUTION
CAUTION
9. Maintenance
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