8-108 Phaser 4500/4510 Service Manual
FRU Disassembly
6. Remove the damper cover and damper spring from the duplex unit 
housing cover.
Note
Some of the gears do not have retainers, and could fall off. Be careful 
not to lose any of the gears.
7. Release the hooks of three roller gears, and remove them from the duplex 
unit roller.
8. Release the hooks of three duplex unit bearings on the opposite side of 
the roller gear from the inside, and remove three duplex unit bearings 
from the duplex unit housing cover.
9. Remove three duplex unit rollers by moving them in the direction of the 
arrow.