Ten-Tec 4229 - Subpanel Bushing, Shafts, and Couplers; Sub-panel Assembly and Pulley Installation

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10.
6 bys
Tn2seieetor
locking
the
dent
mechanism
in
a
predetermined
position
on
the
Sub
panel
when
it
is
inserted
in
a
hole
adjacent
to
the
panel
mounting
hole.
Next
notice
the
series
of
twelve
rectangular
holes
in
a
circle
around
center
bushing.
These
are
access
holes
for
inserting
a
stop
tab
which
limits
the
number
of
positions
that
the
shaft
can
be
rotated.
The
stop
tabs
supplied
are
3/8"
flat
washers
that
have
right
angle
tabs
3/32"
W
x
1/8"
L
on
their
Outer
edge.
These
washers
locate
on
the
3/8"
threaded
bushing
so
that
the
tab
inserts
in
one
of
the
rectangular
access
holes.
For
the
antenna
selector
switch,
(S-2)
we
want
to
limit
rotation
to
four
positions.
Remember
that
the
counter
clockwise
position
that
you
left
the
shaft
in
is
position
number
"one"when
you
count.
To
determine
the
proper
hole
to
insert
the
stop
tab
for
this
assembly,
hold
the
assembly
with
the
threaded
bushing
toward
you
and
with
the
panel
locking
tab
at
the
top
or
12
o'clock
position.
Slide
the
stop
tab
washer
on
to
the
threaded
bushing
so
that
the
tab
inserts
into
the
rectangular
hole
at
the
6
o'clock
position.
By
holding
the
stop
tab
in
position
you
should
be
able
to
rotate
the
shaft
to
only
four
detent
positions.
(Four
counting
the
end
positions.)
Insert
the
threaded
bushing
through
the
subpanel
from
the
rear
into
the
3/8"
hole
in
the
lower
right
corner
of
the
subpanel.
Be
sure
that
the
index
tab
engages
the
small
access
hole
adjacent
to
the
shaft
hole.
Secure
with
a
3/2"
hex
nut
and
tighten.
In
like
manner
the
switch
shaft
assembly
for
the
selector
switch
(S=b)s-is
prepared
and
installed.
Repeat
all
of
the
above
steps
except
insert
this
stop
tab
in
the
rectangular
hole
that
is
located
in
the
1
o'clock
position.
This
will
allow
shaft
rotation
to
eleven
positions.
Mount
this
assembly
in
the
3/8"
hole
in
the
center
of
the
sub
panel.
Install
two
black
nylon
bushings
into
the
two
remaining
large
round
holes
in
the
sub-panel.
Insert
the
small
diameter
ends
from
the
painted
side
of
the
panel
and
insert
fully
so
that
their
shoulders
(rims)
are
bottomed
against
the
panel.
Attach
the
two
double-flatted
insulating
shafts
to
the
ends
of
the
two
switch
actuator
shafts.
Use
the
two
straight
couplers
that
have
flatted
internal
holes.
Insert
each
shaft
as
far
as
possible
toward
the
center
of
each
coup-
ler
and
secure
with
6-32
set
screws.
Position
the
couplers
so
that
the
set
screws
will
be
accessible
from
the
top.
Instail
a
straight
coupler
with
round
holes
on
the
front
shafts
of
the
vari-
able
capacitor
and
the
variable
inductor.
Insert
each
shaft
half
way
into
i
each
coupling.
With
the
capacitor
fully
meshed
and
the
inductor
at
max
clock-
wise
position
(roller
contact
to
the
rear
end
of
coil)
place
the
set
screws
>
on
the
top.
Start
the
second
set
screw
in
each
coupler
but
not
through
the
wall.
Install
the
sub-panel
assembly
and
attach
to
the
side
panels
with
a
4
#6
x
3/8"
sheet
metal
screws
in
the
same
manner
as
mounting
the
rear
panel.
The
long
insulated
shafts
should
be
rotated
to
line
up
with
the
rectangular
holes
in
the
rotors
of
Sl
and
S2
on
the
rear
panel.
The
shaft
to
Sl
passes
through
the
center
of
the
self
supported
coil
attached
to
terminals
2
&
3
on
Bly
Mount
one
of
the
nylon
pulleys
to
the
front
side
of
the
Ssubpanel
in
the
up-
per
right
corner.
Put
the
pulley
on
a
4-40
x
5/8"
machine
screw
and
install
a
4-40
hex
nut
behind
the
pulley.
Do
not
tighten
this
nut.
The
pulley
should
be
free
to
spin
on
the
screw.
Now
place
the
screw
through
the
hole
in
the
panel
and
secure
with
another
hex
nut
on
the
back
side
of
the
panel.
Tighten
this
nut
being
sure
to
allow
the
pulley
to
have
freedom
to
spin.
Mount
two
nylon
pulleys
in
the
upper
left
corner
using
the
threaded
bushing
installed
in
the
sub panel.
Place
the
two
pulleys
on
a
4-40
x
5/8"
machine
screw
without
the
hex
nut.
Run
the
screw
through
the
bushing
until
the
two
pulleys
are
still
free
to
spin
on
the
screw
threads.
Lock
in
this
position
with a 4-40 hex nut tightened on the screw against the rear side of the panel.
12. Insert the 2-1/4" long x 1/4" diameter round phenolic shaft thru the bushing