Download User Manual - Fast Clock

 Notice the holes for gears #1 and #2, to be
installed in the next steps.
64: Gears #3 and #4 snapped
installed.together.
Fig. 63:
 Place the pointed shaft of gear #1 in its hole in
the housing top. The the long teeth on gear #1
with will mesh with the motor armature gear
when the housing is closed in the final step.
(The teeth are long and somewhat flexible so
they don't have to be precisely aligned with the
armature gear when the housing halves are
snapped together.)
Fig. 65: Gear #1 installed.
 Slide gear #2 under gear #3 and over gear #1. Place its short shaft into its hole in the housing
top. The small gear on #2 meshes with gear #3. The metal retainer disk on gear #2's shaft is
positioned above gear #3. Gear #2 meshes with the small gear on #1.
 Fig. 65 shows the four primary gears correctly
installed. Notice how gear #3 is positioned above
gear #2 and below the metal retainer. Also notice
how gear #3 meshes with the small gear on #2,
and how gear #2 meshes with the small gear on
#1. The pointed shaft on the armature gear will fit into the hole to the right of gear #1, and the
armature gear will mesh with the long teeth on gear #1.
FCC4 Fast Clock Controller User Manual
Page 56