TM 11-5840-360-14-1-1
3. PRF Generator PCB 4/5A2A6: Linked for
2.7.2 Installation Modifications (V2,V3,V4)
nautical miles (see paragraph 2.6.4.2, item 5 above).
The switching units are commonly wired and
2.6.5.4 EBL Switching PCB 4/5 A2A9. - Install links
jumpered for the system in which they are to be
between the following terminals on EBL PCB
installed. Table 2-12 lists the internal jumpers required
4/5 A2A9:
in each unit for the four configurations (V1, V2, V3, and
E2 to E4
V4). During installation, verify that the units are properly
E8 to E10
wired and jumpered as specified in the table.
E13 to E15
2.7.3 Mounting Hardware (V2,V3,V4)
E16 to E17
When installing the switching units, the following
E19 to E20
general rules must be observed, as applicable:
NOTE
1. Corrosion-resistant (i.e. stainless steel)
If True Motion (TMU) or Anti-
mounting hardware should be used.
Collision (ACU) options are installed,
2. Mating surfaces of dissimilar metals
these links will be modified.
should be coated with a silicone compound such as Dow
2.6.5.5 NSK Exciter PCB 4/5 A9A2. - Install a link
Corning DC-4 (Part Number 230-1014P3) to prevent
between terminals El and E2 on the 4/5 A9A2 PCB.
corrosive action.
This link will be removed if ACU is installed.
NOTE 1
2.7.4 Mounting Instructions (V2,V3,V4)
The switching units are self-contained, designed for
Before the radar is put into service it
bulkhead mounting, and each weighs approximately 75
shall be tested and adjusted in
pounds.
Refer to Figure 2-12 for mounting and
accordance with the instructions
installation dimensions.
furnished in Section 5.5.
2.8 INTERFACE UNIT J-3463 (V2)
NOTE 2
2.8.1 Mounting Hardware (V2)
Product warranty is contingent upon
When installing the interface unit, the following
receipt
by
Raytheon
Marine
general rules must be observed as applicable:
Company of an installation report
1. Corrosion-resistant (i.e. stainless steel)
executed by a qualified service
mounting hardware should be used.
engineer.
2. Mating surfaces of dissimilar metals
Check and, if necessary, perform the indicator
should be coated with a silicone compound such as Dow
alignment procedures per paragraph 5.12.3.
Corning DC4 (Part Number 230-1014P3) to prevent
2.7 SWITCHING UNITS SA-2139 (V3, V4) AND SA-
corrosive action.
2156 (V2)
2.8.2 Mounting Instructions (V2)
2.7.1 Cable Connections (V2,V3,V4)
The interface unit should be bulkhead mounted at a
Cable connection data for the switching units is
location between the receiver transmitters and the
provided in Tables 2-7 through 2-11. The tables list the
antenna. See Figure 2-13 for mounting and installation
cable numbers, the source (including the bundle
dimensions.
identifier, wire color, wire number and connection) and
2.8.3 Cable Connections (V2)
the destination (unit, connection, and applicable figure
Cable interconnection data for the interface unit is
number).
provided in Figures 2-2 and 2-13.
CAUTION
USE A 40-WATT IRON AND 60/40
WHEN
CONNECTING
POWER
LEADS
TO
RF
INTERFERENCE LINE FILTERS FL2
AND FL3 IN THE RECEIVER
THESE FILTERS
(PART
NUMBER
363-7184P1)
CONTAIN AN OIL-FILLED CAVITY
WHICH IS SEALED WITH SOLDER
THAT
MELTS
AT
315 C.
0
EXCESSIVE HEAT COULD DAMAGE
THE SEAL AND CAUSE OIL
LEAKAGE WHICH MIGHT DAMAGE
THE FILTER.
2-25
Previous Page
