TM 11-5840-360-14-1-1
2.5.3.1 Cable Connections. - Access to terminal boards
The recommended method of installing the indicator
within the receiver transmitter is provided by removing
is to secure the base assembly directly to the deck. The
the wrap-around cover which is secured to the receiver
base assembly is secured by removing the lower access
transmitter chassis assembly by six clamping catches.
cover, tightening the mounting bolts, and replacing the
All receiver transmitter interconnecting cables enter the
cover.
receiver transmitter through the bottom of the cabinet
NOTE
(see Figures 2-1 through 2-4). To gain access to the
If the indicator is bulkhead mounted,
terminal boards and connectors which interface these
use plate (Part Number 589541- or
cables, remove the receiver transmitter front cover by
169511-1) and associated hardware
releasing the four clamping catches.
(see Figure 6.4-55 or Figure 6.4-57,
item 4) to secure all interconnecting
cables to the bottom of the indicator
cabinet.
To install the indicator, it is necessary to remove the
access covers. Since the indicator circuits are exposed
when the indicator is being installed, the following
precautions shall be observed: (1) Use the correct tools;
Ship's mains shall be connected to the receiver
(2) Do not touch any of the screwdriver controls; (3)
transmitter through a 15-ampere fuse or circuit breaker
Apply leverage externally.
box (with power disconnect switch) .
WARNING
2.5.3.2 Waveguide Installation. - Information required
THE CRT IS EXPOSED WITH THE
for waveguide installation is given in paragraph 2.3.4.2.
INDICATOR UPPER ACCESS COVER
See Figure 2-9 for recommended X-band waveguide
REMOVED OR WITH THE HINGED
CONTROL PANEL IN THE RAISED
POSITION. TAKE EXTREMIE LCARE
2.6 AZIMUTH RANGE INDICATORS IP-1282 AND IP-
TO PREVENT BREAKAGE.
1283
2.6.3 Cable Connections
2.6.1 Mounting Hardware
Interconnections to the indicator(s) are shown in
When installing the indicator, the following general
rules must be observed as applicable:
Terminal boards within the indicator are exposed by
removing the wrap-around cover which is secured to the
1. Corrosion-resistant (i.e. stainless steel)
indicator chassis assembly by four snap-fasteners.
mounting hardware should be used.
Indicator cables are connected up through the base
2. Mating surfaces of dissimilar metals
assembly and to the terminal boards and connectors
should be coated with a silicone compound such as Dow
inside the cabinet (see Figures 2-10 and 2-11). These
Corning DC4 (Part Number 230-1014P3) to prevent
terminal boards and connectors are accessible by
corrosive action.
removing the upper front cover from the indicator
cabinet and swinging down the NSK assembly (if
2.6.2 Mounting Instructions
installed).
Ship's mains shall be connected to the indicator
through a 10-ampere fuse or circuit breaker box (with
data required for mounting the 12-inch and 16inch
power disconnect switch).
indicator units. These figures also include outline
drawings showing the overall dimensions of the indicator
with base assembly attached.
2-19
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