Holding the belt around the antenna rotary joint, between the antenna and the antenna gear, insert the antenna into its slot, with the waveguide opening on the bottom facing the magnetron.
Place the belt around the motor
drive gear.
Hold the other side of the belt
to the antenna gear, and slowly rotate the antenna until the belt snaps onto the
gear.
Rotate the antenna to expose the
boss for one of the antenna rotary joint mounting screws.
Install the first antenna rotary
joint mounting screw.
Rotate the antenna to expose the remaining two bosses and install the remaining
mounting screws.
Make sure the mounting screws do not interfere with the antenna
rotation.
Reconnect the antenna position sensor board cable to the antenna position sensor board on the underside of the antenna gear, near the motor.