Orbit OBK 8604 Owner's Manual page 6

Step Four:
1.Insert the Upright Post Cover (15) into the Upright
Post (12) and then connect Sensor Wire (16) well
with Upper Sensor Wire (3).
2.Fix the Upright Post (12) on the post of the Main
Frame (1) with Inner Hex Bolt (14) and Arc Washer
(13) as shown.
3.Finally, cover the Handlebar Post Cover (15) to
the joint of Upright Post (12) and Main Frame (1).
Step Six:
Connect the Pulse Sensor Wire (4) and Upper Sensor
Wire (3) with the wires of console (17) respectively,
and then fasten the console (17) onto the console
bracket of the Upright Post (12) with Cross Pan Head
Screw (2) and Flat Washer (37) as shown.
Step Five:
Pull the Pulse Sensor Wire (4) out of the console bracket
hole of the Upright Post (12).
Adjust the Handlebar (7) to a suitable position and then fix
it onto the Upright Post (12) with Handlebar Chuck Cover
(10), Spacer Bushing (9), Flat Washer (8) and T shape Bolt
(11).