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
137
of
240
Encoder removal
The
azimuth encoder
can be removed
as follows:
e)
e)
Fully isolate the entire system from all
sources of AC power.
f)
f)
Unplug the
a
zimuth
e
ncoder flying
lead from
the housing cable form (located in the top of
the housing).
g)
g)
Noting the position and order of washers,
u
nscrew
, remove and retain
the
two pillars
(
A
)
that hole mounting bracket
from the base
of
the rotating joint.
h)
h)
Slacken the two M3 (1.5mm hex key
) grub
screws securing the azimuth encoder to the
gearbox and carefully remove the azimuth
encoder, ensuring the cable is not damaged.
Example of G
TX
TX
A188
Noting the position and order of washers, unscrew, remove and retain
the
four
cross head bolts
(
B
)
that retain the supporting bracket to the encoder.
Encoder r
eplacement
To replace the azimuth encoder, reverse the removal procedure shown above.
The encoder must never be hammered into position.
Using a hammer to fit the encoder can damage the device.
Heading Marker Note
There is no heading orientation mark on the encoder.
When a replacement
encoder is fitted the heading line must be configured/ adjusted in the
setup
menu of the radar
distribution unit.
Power & signal
connection
G
TX
TX
A188
encoder
A
B