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Field Replacement Procedure
Brief Summary:
Field replacement document for replacing the BUC 8W or 16W.
Spare part:
S-67-178100 BUC, Ku band, 8 W
S-67-178101 BUC, Ku band, 16 W
Location of the BUC
Following legal entities are trading as / doing business as Cobham SATCOM
Thrane & Thrane A/S, Kgs. Lyngby, Denmark
Sea Tel Inc., Concord USA
SAILOR 1000 XTR Ku – BUC 8 W or 16 W
Field replacement procedure
Cobham SATCOM
Global Technical Service dept.
Date: October 2021
Document Number:
97-178196-A
www.cobham.com/satcom
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Table of Contents
Related Manuals for COBHAM SAILOR 1000 XTR Ku BUC 8 W
Summary of Contents for COBHAM SAILOR 1000 XTR Ku BUC 8 W
- Page 1 S-67-178100 BUC, Ku band, 8 W S-67-178101 BUC, Ku band, 16 W Location of the BUC Following legal entities are trading as / doing business as Cobham SATCOM Thrane & Thrane A/S, Kgs. Lyngby, Denmark Sea Tel Inc., Concord USA www.cobham.com/satcom...
- Page 2 Replacing the part: 1. Open the service hatch, loosen the 8 screws. Do not use a power tool! Access the pedestal through the hatch. Power off the ADU (at the ADU power on/off switch at the antenna control module). Remove the feed horn with a suitably sized wrench.
- Page 3 5. With a Torx25 screw driver loosen the four screws (do not remove them entirely) to remove the RF pack. 6. Turn the RF pack anti-clockwise and lift it off using the two handles. Continue the replacemnt below deck. 7. Remove the 2 shafts to loosen the waveguide arm using an Allen key 4 mm.
- Page 4 10. Remove the four Hex nuts M6 and the four washers holding the BUC 11. Remove the faulty BUC, including the power detector housing (blue circle). 12. Remove the four screws holding the power detector housing. 13. Remove the power detector housing and O-ring from the faulty BUC.
- Page 5 20. Slide the waveguide with the O-rings back in place. Important: Make sure not to drop the O- rings into the waveguide. 21. Fasten the waveguide shafts at 2.5 Nm using an Allen key size 4 mm 22. Tighten the 4 nuts of the BUC to 8 Nm. 23.
- Page 6 25. Connect the cables: a) 2x LNB cables (socket wrench 8mm, 1.0 Nm), b) BUC cable (wrench, 2.0 Nm), c) Cable to Power Detector housing (insert carefully as the PCB is very fragile) d) polarisation motor cable. 26. Mount the feed horn, tighten to 40 Nm. 27.
- Page 7 Close the hatch. Apply copper grease to thread of the 8 screws. Grease type: Rocol 250, Nulon 90, or Abcon 790. 30. After closing the hatch, make sure to mount all eight screws before tightening. This is to avoid that the last screws will misalign. Do not use a power tool! 31.
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