Panasonic NR-B29SG2 - Page 63

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9. After all welding processes is done, press nitrogen from compressor and dryer service tubes to check if there any blockage.
10. Blank the service tube on dryer (with welding) and connect the gas charging machine via service tube on compressor for vac-
uuming. (Vacuuming should last at least 45 mins, after vacuuming check the pressure levels for ensuring there is not any
leakage.)