Field Service Procedure – Replacement PCU Kit, ST88, ST94 & ST144
Page
17
of
22
Document No
137738 Rev A
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Tel, Inc. This document may not be reproduced or distributed in any form without prior written
consent of Sea Tel, Inc.
21.
Replacing
the
MK2
PCU
Assembly:
21.1.
Tools.
#1
Phillips
Screwdriver
7/16”
Wrench/Spanner
5/16”
Wrench/Spanner
Snips/Cutters
2mm
Flat
Blade
(Terminal)
Screwdriver
Cable
Ties/Tie
Wraps
Loctite
242
21.2.
Procedure.
Procedure
for
replacing
the
PCU
assembly,
Sea
Tel
kit
part
number:
137737
(PCU
part
number
part
number:
131057
‐
3).
*Caution:
Power
down
the
pedestal
before
following
this
procedure.
1.
Using
a
#1
Phillips
screwdriver
remove
the
screw
securing
the
coax
switch
connection
of
the
reflector
harness
from
the
termination
block.
2.
Remove
the
coax
switch
IDC
connector
from
the
termination
block.
3.
Using
a
7/16”
wrench
remove
the
two
RG
‐
179
coax
cables
from
the
lower
mounting
bracket
installed
on
top
of
the
PCU,
noting
their
orientation.
4.
Now
disconnect
the
two
RG
‐
60
coax
cables
from
the
other
side
of
the
mounting
bracket
using
a
7/16”
wrench.
Summary of Contents for ST144
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