Panasonic YD-500GP5 Operating Instructions Manual page 18

● About coolant
（1） ensure to use antifreeze as coolant
Please use ethylene glycol antifreeze (other salts and alcohol antifreeze may corrode metal parts such as
welding gun and water pump).
NOTE: When using the coolant, please use the same brand of antifreeze from the same manufacturer. It is
forbidden to mix the antifreeze from different manufacturers.
Please buy antifreeze according to the local minimum temperature. The freezing point of antifreeze should
be lower than the minimum temperature of the environment
（2） In order to avoid the formation of coolant scale in the bucket, please change the coolant regularly.
Antifreeze once a year
（3） When not in use for a long time, be sure to remove the coolant from the coolant tank and coolant pipe
Some components in the coolant will precipitate in the coolant pipe, which will cause the water pump not to
operate normally Method of removing cooling liquid
The water inlet pipe joint of the welding torch is inserted into the coolant inlet of the liquid cooling system,
and the exhaust joint is inserted into the coolant outlet of the liquid cooling system
Blow the compressed air from the exhaust joint to discharge the coolant from the outlet pipe joint of the
welding gun
● Installation and disassembly of liquid cooling system
By default, the machine is an integrated machine of welding power supply and liquid cooling system, which can
be disassembled into independent welding power supply and liquid cooling system according to needs
The disassembly sequence of the liquid cooling system is as follows ：
(1)Remove the welding power supply top cover and side plate (left side version), and disconnect the three
connectors as shown in the figure below
Connectors (three)
It is not allowed to drink the coolant in the coolant tank and wash the eyes with coolant
Otherwise, diarrhea and poisoning may occur.
Before the installation or disassembly of the liquid cooling system, be sure to disconnect
the welding power supply
After disassembly, there is high voltage in the 3 connectors disconnected from the
welding power supply. Please pay attention to binding and protection
Configuration
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