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Elevating Shaft Worm Gear Assembly
Replacement Procedure
STEP
1:
Lower
antenna
to
travel
position
and
refer
to
drawing
to
identify
parts
indicated
in
steps
below.
STEP
2:
Loosen
set
screw
on
elevating crank (#1) and remove crank
(#1),
spring
(#2),
directional
handle
(# 3).
STEP
3:
Go to roof of vehicle and
remove
retaining
ring
from
pin
(#5)
holding top elevator tube in rotating
gear housing and remove pin.
STEP
4:
Remove
bearing
plug
(#4)
from
top
of
rotating
gear
housing.
Disengage
elevating
gear
(#6)
and
remove elevating shaft assembly (#7).
Note:
Make sure all parts below worm
gear
are removed from
rotating gear
housing.
These include bearing, quad
ring and one or two washers.
STEP
5:
Cut new shaft
1/4"
longer
than
old shaft.
See
Illus:
Discard
old bearing plug item (#4).
STEP 6:
Lubricate worm gear on new
elevating
shaft
assembly
with
spray
silicone
lubricant,
make
sure
quad
ring, washer and wave washer are on
lower
bearing
and
insert
assembly
in
housing.
STEP 7;
Install new plastic bearing
plug
in
top
of
housing.
Re-engage
elevating gear in worm gear.
Replace
pin and retaining ring.
STEP 8:
Replace directional handle,
spring and elevating crank.
Make sure
set
screw
contacts
flat
on
shaft
before tightening.
H-25
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