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USFD testing done by manual rail tester suffers from following deficiencies: (i). Full cross section of weld is not covered by normal USFD examination using |B£D HOT USFD HOT USFD 11 T26=T SERIAL2 U KJ 12 J26-6 1 ]□? □125-2 U 33S-? 15 J26-3 16 .176-8 17 .I7R-4 1R J26-9 I 19 .176-5 48 NOI USED HOI USED NOT USEDAll Information and updation of USFD Manual 2012. USFD testing done by manual rail tester suffers from following deficiencies: (i). Full cross section of weld is not covered by normal USFD examination using The provisions of USFD manual published by RDSO and interpretation of signal patterns obtained on the monitor of USFD machine during testing can seldom be CONTENTS (USFD MANUAL 19980) 3, Equipment and USFD accessories 5, Procedure to be followed by USFD operators. USFD testing done by manual rail tester suffers from following deficiencies: (i). Full cross section of weld is not covered by normal USFD examination using