Removing Dust In The Product; Overall Inspection; Checking Cables And Ground Cable; How To Remove Top Panel - Panasonic YD-400VP1YHD Operating Instructions Manual

9. Maintenance
Front
center panel
(1) Remove the front center panel from the weld-
ing power source, and disconnect the cooling
fan. And then remove the cooling fan
together with mounting plate.
(2) Remove dirt and dust accumulated in the fin.
Note
After completing the inspection work, put the
connector, mounting plate and front center
panel back in place.

9.3.2 Removing dust in the product

It is recommended to perform periodic cleaning
as dust and wire particles are prone to get into
the product from the lower part of the product.
(1) Unscrew bolts from lower left and right pan-
els (6 each) of the welding machine to
remove the covers.
(2) Before blowing air, remove any items, such as
dust and iron particles that may affect sur-
roundings.
(3) Use dry compressed air to blow dirt and dust
accumulated in the product.
Note
Make sure to put the cover back in place after
inspection.
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9.3.3 Overall inspection

Mainly check the following points.
• Signs of odor, tarnish and heat generation
• Loose connections
• Over-tightening
• Items that are difficult to check in daily
inspection
9.3.4 Checking cables and ground
cable
1) Check input, output and base metal
cables and ground cable
Refer to the inspection points of cables in the
previous "Daily inspection" and check those
points carefully.

9.3.5 How to remove top panel

(1) Unscrew two eyebolts and two bolts from the
top panel to remove the top panel.
Note
• Before removing the top panel, remove dust
and iron particles from the top panel if any.
• Remove the top panel only for internal
inspection. Do not remove side plates to pre-
vent dirt and dust to get into the power
source.
• Compared to the lower part, the upper part
of the power source is designed as less likely
dirt and dust to get into it. Do not perform
inspection work in dust-laden atmosphere,
such as immediately after blowing off dust.
• After inspection work, make sure to put cover
back in place.
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