a) Clean all surfaces with 80 grit aluminum oxide sandpaper, G51032, until all
surface finishes are removed and a bright aluminum bonding surface is visible.
b) Wipe the surfaces with a wiper, G50262, saturated with alcohol, B00065, or
alcohol, B50073.
c) Continue to wipe the surfaces with a clean wiper, G50262 until there are no
traces of contamination on the wiper.
4) Prepare the surfaces where the two bolts are installed that attach the clip to the
fuselage bulkhead as follows:
a) Wipe the surfaces with a wiper, G50262, saturated with alcohol, B00065, or
alcohol, B50073.
b) Continue to wipe the surfaces with a clean wiper, G50262 until there are no
traces of contamination on the wiper.
5) Install the clips, shims (if installed previously), bonding jumper, washers and bolts
as previously noted.
(j) Do a check of the electrical resistance between the radome bonding jumper and the
radome clip:
1) Use an intrinsically safe approved bonding meter, COM-1550 or non-intrinsically
safe bonding meter, COM-614 to measure the resistance between the bonding
jumper and the radome clip.
2) Make sure the electrical resistance is not greater than 0.01 ohm.
SUBTASK 53-52-00-210-014
(12) With the radome in a closed position, make sure that the screw holes of the radome
attachment are aligned with the holes in the attachment clips.
SUBTASK 53-52-00-420-005
CAUTION
DO NOT USE TOO MUCH FORCE TO ALIGN THE HOLES. YOU CAN CAUSE
DAMAGE TO THE CLIPS AND THE RADOME.
(13) If the adjustment is necessary, use manual force to adjust the radome position to align the
screw holes.
SUBTASK 53-52-00-420-006
(14) Install the countersunk bolts with the compound, D50004 in the aft edge of the radome then
torque screws to 120 in-lb (13.6 N·m) - 150 in-lb (16.9 N·m).
SUBTASK 53-52-00-210-015
(15) Make sure that the seal engages correctly and the radome clearances are correct.
SUBTASK 53-52-00-860-004
(16) Remove the safety tag and close this circuit breaker:
F/O Electrical System Panel, P6-1
Row Col Number Name
D 13 C00120 WEATHER RADAR RT
END OF TASK
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
53-52-00
Page 406
D633A101-ILF Feb 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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