OKIDATA Pacemark 3410, Service Manual

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Service Guide PM3410
Chapter 3 Maintenance & Disassembly
3.2.13 Drive Pulley and Belt
1. Remove the printer unit
(3.2.09).
2. Remove the tension spring (3.2.11).
3. Remove the bottom push mechanism (3.2.12).
4. Loosen the two motor screws (1).
5. Push the motor (2) in the direction of Arrow A, to loosen the belt (3).
6. Remove the belt.
7. Pry open the claws in the center of the pulley, then remove the drive pulley (4) from the tractor feed
drive shaft (5).
NOTES:
The drive pulley has two parts. Disassembly of the drive pulley is not required during this procedure.
Once the drive pulley has been removed, be sure that the tractor feed drive shaft is not removed. If you
remove the tractor feed drive shaft, the left or right tractors will lose the synchronization between the pin
feeds.
When assembling, perform the belt tension adjustment (3.3.02).
P/N 51226901 Pulley: Drive (BTF) RSPL B.2.08
P/N 51304501 Belt: Line Feed (BTF) Mini-Pitch [120 teeth] RSPL B.2.08