ACCESSORIES
15-31
R.H. REAR
Fig.
15-43
Electric
Antenna—Pontiac
Sedan
OVERHAUL
ANTENNA
Replace
drive, mast or support tube as follows:
CAUTION:
Before
attempting
replacement of any
of
three major sub-assemblies
listed
below,
the
hook-up wire should be removed from lead-in plug
pin and insulator
assembly
to prevent this wire
from being broken where it is soldered to .400
tube
section of
mast.
1. Remove two screws holding lead-in flange to
support
tube.
2.
Remove flange from pin and insulator assembly.
3.
Unsolder hook-up pin from wire.
NOTE:
Do not overheat pin by
slow
soldering as
this will
destroy
pin insulator. Use needle-nose
pliers to hold pin while soldering.
4. Remove pin and insulator assembly. If replace-
ment of drive, support tube or mast is indicated,
continue following steps as required.
5. Remove three screws which hold support tube
to drive assembly.
6. Holding drive in one hand and supporting tube
in
other hand,
pull
(applying back-and-forth rotary
motion at same time) until support tube is removed
from
antenna.
To
replace support tube:
7. If only replacing a damaged support tube as-
sembly, apply the reverse of steps 1 through 6,
making
sure that hook-up wire is extended through
proper
hole in support tube.
If
replacement of drive or mast is indicated:
8. Holding drive in one hand and mast in other
hand
(grasp near bottom of mast),
rock
mast back
and
forth and
pull
at same time.
This
will
remove
insulator
bushing and .400 tube section from tubular
fitting on drive.
9. Apply 12 volts D.C. (up direction of mast) to
power leads until entire length of nylon cord has
been expelled from drive. To prevent
kink
or bend
in
nylon
cord,
keep it taut by pulling on mast.
NOTE:
If drive
assembly
is inoperative, it will
be necessary to manually remove nylon cord from
drive. To remove nylon cord from disabled drive,
place
assembly
in vise so normal plane of nylon
cord
is parallel
with
floor.
Then,
using
both
hands, pull on
.300-diameter
mast
tube
until nylon
cord
is removed
completely
from drive.
CAUTION:
DO NOT
attempt
service on compo-
nents of drive
assembly.
This must be serviced as
a complete unit.
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