Operation and Maintenance Manual

b. Set the SAFE/OPERATE switch to the SAFE position.

c. Remove the antenna, counterweights, and the two arms located on

the Elevation Axis.

d. Remove the four screws on each flange (8) and the screws (3)

securing the Positioner to the base riser.

e. Detach the connectors MOL1 thru MOL4, located in the base riser.

f. Lift the Positioner off of the base riser and place it on a secure

working surface; e.g. a table.

g. Support the Positioner in a level position.

h. Remove screws (6), cut the tie wraps located on the waveguide and

remove the parts (7) from the Slip-Ring.

i. Remove the screws (4) securing the lower plate (5) to the Azimuth

unit.

j. Separate the lower plate (5) from the Azimuth unit.

Note:

The length of the wiring harness between the slip-ring and the

elevation unit is long enough to allow the plate (5) to be moved

away from the Azimuth unit by a distance of approximately one foot.

k. Remove the four screws securing the motor bracket to the azimuth

positioner body.

l. Using a "heat gun", remove the LOCKTITE No. 241 epoxy from the

four screws securing the motor to the bracket.

m. Remove the four screws attaching the motor to the bracket.

n. Carefully, remove the motor from the bracket.