Oce VarioPrint 6180 Titan Maintenance Manual page 79

Lift the TTF units
4. Push the service key at the indicated location inside and turn it counter-clockwise.
5. Use socket wrench 10 to loosen the two bolts of the left-hand TTF Unit.
6. Lift the left-hand TTF unit, using the metal bar at the front side.
Chapter 3 - Maintenance tasks - Level 2 79
Océ VarioPrint 6000 line