Thrustmaster Add-On Formula Wheel (Ferrari SF1000 Edition) - Manual (Page 5)

INSTALLING THE RIM ON ITS BASE
Align the connector positions using the arrows:
Base connector: arrow pointing upwards
Rim connector: arrow pointing upwards
Once the connectors are correctly positioned, simply rotate the Thrustmaster Quick Release device’s ring counterclockwise, while
holding the rim in position. Then, tighten the ring as much as you can: to do so, hold the ring in position and rotate the rim clockwise.
Once you have installed the rim, rotate it 180° (when facing the wheel, the Ferrari logo should be upside down) to access the small
attachment screw located on the ring of the Thrustmaster Quick Release device. Use a large Phillips screwdriver to tighten the small
attachment screw (do not use excessive force), turning it clockwise.
Do not use excessive force when tightening the small attachment screw (using a Phillips screwdriver)!
Stop turning the screw as soon as you feel some resistance