User's Manual

29 LS420 Universal User Manual V2.91 2003-01-21.doc
Step 7.
Install the three fresh, top quality, alkaline “C” cells;
the positive/negative alignment of the batteries must be re-
spected as indicated on the interior walls of the box. Insert
the negative pole first, keeping the battery as parallel to its
final position as possible. Once the negative pole is half-
way in, gentle pressure in the direction of the negative pole
will allow the positive end of the battery to be pushed in.
Do not force more than is necessary. Upon installation of
the third battery, the indicator light will flash briefly, indicat-
ing correct battery placement.
Step 8.
Clean the leading edges of the sensor box and the surface of the mounting plate
where contact is to be made.
Step 9.
Apply the RTV non-corrosive silicone to the mounting plate to create a 1/8th inch
joint.
Step 10.
Reposition the sensor box over the mounting plate. Verify that the silicone forms
an effective seal all around the joint between box and plate.
Step 11.
Secure the box to the mounting plate by tightening the two Phillips head screws.
Step 12.
Clean off excess silicone.
Step 13. If battery replacement has been successful, the “Low Batt” icon of the cabin-
mounted display will no longer be lit. Use of the test function will confirm new battery
status.
Step 14.
Reinstall the angle or wind sensor; calibrate an angle sensor following the installa-
tion procedure outlined in the angle sensor installation chapter of this manual.