Chevrolet Impala SS, Handbook

Page: 42 / 159

42
SSHandbook
Maintenance: Electrical
Notice the notch called stopper, that notch can not be in the RED area. Can be positioned in ANY position
around that green circle but better orient the wheel in the exact position as shown with minimum nylon wire
on the wheel (notice the hook that is the end ofthe nylon wire, less than ¼ ofa turn).
Observe the small wheel on the cover. Make sure the wheel is oriented in EXACTLY the position
indicated (the missing tooth should be towards the red line shown in the picture below). That wheel is what
stops the antenna when fully extended. If the wheel is randomly oriented the antenna will not extend all the
way.
Lubricate with grease all teeth and the drive screw and the area around the little gear. Do not lubricate the
cable or the mast.
Slide the brushes/switched assembly over the shaft (highlighted magenta). If brushes are loose re-gap as
required, then put the cover back along with the clips and screws (replacing the rivets). At the same time make
sure the round gasket over the nylon wire is placed in the correct location.
ALWAYS do a bench test of the antenna; apply 12 V as described above. Allow the mast to travel from
fully retracted to fully extend (several times). Very important, you should hear a distinctive click at the end of
the travel (in any direction). If no click, the shaft does not slides (up or down) disconnecting the power to the
motor. You can observe the shaft sliding up or down with the cover removed. If no distinctive loud click start
all over (something is not assembled correctly).
Hope this will save you $50 or so.