User's Manual

SBS
-
900 Shore
Ba
Ba
sed
Radar Systems
Chapter
10
10
:
Corrective maintenance
KH
KH
-
1602 2
issue 1
:
Standard SBS900 Systems Operator & Maintenance Handbook
Page
133
of
240
Rotating joint removal
With the antenna, internal waveguide and azimuth encoder removed, the rotating joint can now be
removed.
Noting their positions, remove
and retain
the 6 x M12 bolt
s and washers shown below:
The entire rotating joint can now be gently removed from the transceiver housing.
Remove and discard the gasket which MUST NOT be
re
re
-
used. A replacement gasket ordered with
the rotating joint (GTX
-
A1246) must be used when the new Ro
-
Jo is assembled.
This completes the removal process.
Replacement
Rotating joint
To replace the rotating joint, reverse the above procedure
using the
new GTX
-
A1246 replacement
gasket
.
Waveguide coupling
& azimuth encoder
Rev
erse the removal process.
Antenna
Reverse the removal procedure detailed in the above section.
-
Tighten and torque load the 12 antenna retaining bolts to 56 Nm and
apply
Loctite 222 on their threads during assembly.
-
Waterproof the waveguide joint by sealing with a layer of greased
NJ?QRGAAMK NMSLBQSAF?Q+ CLJCWfQAMK NMSLBMP' CLQM
Tape.
-
After installation, the antenna should be checked to ensure that it
can freely rotat
e without obstruction.
6 x M12 bolts
and washers
DO NOT
REMOVE
the 6 larger
bolts