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GE TBG440ANDR Technician Service Manual page 37

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VIII. MAINTENANCE OF ENVIRONMENTAL PROTECTION REFRIGERATOR
8.4
SEQUENCE OF EXTRACTING VACUUM
AND FILLING NITROGEN
8.4.1
Vacuum Extraction
¬
Õ ¯
Sequence of Valve Operation
Õ
Õ ®
¬ ®
l
m
G
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