Replacement Procedure Assembly,Drum_Supply_Ribbon; Replacement Procedure 5-15 Gear_Head_Pinch_Cam_L; Replacement Procedure 5-16 Gear_Supply_Tension; Replacement Procedure 5-33 Sa,Holder_Ribbon_Lt - Citizen OP900II Technical Manual

Replacement Procedure Assembly,DRUM_Supply_Ribbon

1-22 COVER_MECHA_L
5-11 Spring_ribbon_Guide
5-28 E Ring 1 place
Note）Ribbon supply tension adjustments must be performed. (refer to Ch.4)

Replacement Procedure 5-15 GEAR_HEAD_PINCH_CAM_L

1-22 COVER_MECHA_L
Disengage the outer side of the 4-7 SPRING_PINCH in 2 places, left and right.
2-12 PCB MECHA SENSOR Assembly
5-28 E Ring 1 place.
Note) Be sure to lubricate gears and cams.
During assembly
5-15 GEAR_HEAD_PINCH_CAM_L and 6-11 GEAR_HEAD_PINCH_CAM_R
CAM-configuration must be matched on left and right sides. If they are not matched, it won't
operate properly.

Replacement Procedure 5-16 Gear_Supply_Tension

2-12 PCB MECHA SENSOR Assembly
Remove the sprint of5-3 Assembly,DRUM_Supply_Ribbon
5-29 E Ring 1 place.

Replacement Procedure 5-33 SA,Holder_Ribbon_LT

5-31 screws 2 place

Replacement Procedure 5-32 SA,Holder_Ribbon_L

5-31 screws 2 place

Replacement Procedure 5-19 HeadUP_Worm_Gear

1-22 COVER_MECHA_L
Connector 2 pin（refer to Wiring Diagram 6）
5-5 Stay_Motor screws 2 places
Note）5-21 Bearing(d4-D8 F), 5-12 Straight Pin can drop. Be sure not to lose them.
After replacing, lubricate the 5-9 HeadUP_Worm_Gear.

Replacement Procedure 5-24 Motor Assy

1-22 COVER_MECHA_L
Connector 2pin（refer to Wiring Diagram 6）
5-5 Stay motor 2 screws.
2 screws
note）5-21 Bearing(d4-D8 F), 5-12 Straight Pin, 5-19 HeadUP_Worm_Gear, 5-23 Coupling_Motor can
drop. Be sure not to lose them.

Replacement Procedure 5-25 Step_Motor_PM25L

1-22 COVER_MECHA_L
Connector 4pin（refer to Wiring Diagram 6）
1 screw

Replacement Procedure 5-20 Bearing(d6-D12)

1-22 COVER_MECHA_L
4-7 SPRING_PINCH
Remove the Plate_Pinch_UP_L with 2 E Rings. E Ring 1 place
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