SONARtrac
™ Rework Instruction
RI00007
Rev: 02
Subject: Procedure for Replacement of Foundation
Fieldbus Board P/N 20924
Page 13 of 13
CiDRA Corporate Services
50 Barnes Park North
Wallingford, CT 06492
Tel. 203-265-0035
Fax. 203-294-4211
www.cidra.com
10. Carefully install the new Fieldbus board as follows:
10.1 Align the J5 and J5-B connector pins with their
mating holes.
10.2 Press the pins into the connectors.
10.3 Inspect the pins to ensure all are properly installed.
Figure 7
Installing new Fieldbus board
11. Put Loctite 242 on the threads of the 4ea #4-40x1/4”
socket head cap screw threads.
12. Install the 4ea screws and tighten to recommended
torque of 5in-lb
f
.
13. Carefully reinstall the FIBA in to location using the
6ea #6-32x5/8” screws. Prior to tightening 6 screws
be sure that no wires are pinched beneath the
heatsink plate. Tighten screws to recommended
torque 12in-lb
f
14. Relocate the Ethernet cable and Chassis ground wire
moved in earlier step 7
15. Reconnect the ribbon cables to J12 and J13 of the
CTBA previously removed in step 5.
16. Reinstall the CTBA using 5ea #6-32x5/16” screws.
Tighten screws to recommended torque of 12in-lb
f
.
17. Close the enclosure cover.
18. Reapply power to the transmitter.
