Oce 3121 Technical & Service Manual page 353

Remove the two screws (8), and remove the inside guide (7).
6
(8)
Remove the screw (9), and remove the ring (10).
7
Remove the E-ring (11), and remove the idler gear (12).
8
Remove the E-ring (13), and remove the gear (14) and the timing belt (15).
9
(Take care not to drop the pin.)
418 TSM Océ 3121
(7)
(9) (10)
(11) (15)
(12))
(13)
(14)
(8)
Dis-/assembly