Field Service Procedure – Replacement PCU Kit, ST88, ST94 & ST144
Page
19
of
22
Document No
137738 Rev A
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10.
Using
a
pair
of
cutters
snip
the
cable
securing
the
AC
power
connector
to
the
PCU
and
disconnect
the
connector.
11.
Using
a
2mm
flat
blade
screwdriver
undo
the
screws
securing
the
reflector
and
motor
driver
D
‐
sub
connectors
to
the
PCU
and
disconnect
them.
12.
Check
all
cabling
from
the
PCU
assembly
and
coax
switch
has
been
disconnected
from
the
pedestal
and
remove
the
PCU
and
coax
switch
assembly
using
a
3/16”
Allen
wrench.
Save
the
hardware
for
future
use.
*Note:
Secure
the
weight
of
the
assembly
while
removing
the
mounting
hardware.
13.
With
the
defective
PCU
removed
from
the
pedestal
use
a
#1
Phillips
screwdriver
to
remove
the
coax
switch
mounting
plate
from
it.
Save
the
hardware
for
future
use.
14.
Using
the
hardware
removed
in
step
13
install
the
coax
switch
on
the
replacement
PCU
assembly,
noting
its
orientation.
Apply
Loctite
242
to
the
threads.
Summary of Contents for ST144
Page 1: ......