DV-NC65H (serv.man13). Adjustment, replacement and assembly of mechanical units - Sharp DVD Service Manual (repair manual). Page 21

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40
DV-NC65H/S
DV-NC70H
8-25. INSTALLING THE MASTER CAM (AT REAR
SIDE OF MECHANISM CHASSIS)
1. Before installing the master cam, make sure that the
sifter is at initial position. (Right side from bottom view)
2. Place the master cam by pushing in so that the long hole
of the master cam comes to the front side as shown
below.
3. Fix the E-ring.
4. Adjust the master cam and pinch drive cam, fix the
synchro gear in correct position.

Note:
See the figure below for the phase matching between the
master cam synchro gear and pinch drive cam.
• Phase alignment of the master cam and the synchro
gear;
Align the wide tooth space and the composite tooth.
• Phase alignment of the synchro gear and the pinch drive
cam;
Adjust the teeth so as to orient the rib of the synchro gear
and the hole of the pinch drive cam.
Figure 8-39-2.
Figure 8-39-1.
E-ring
Pinch Drive Cam
Synchro
gear
Phase
matching
Hole of Pinch Drive Cam
Master Cam
Phase
matching
Rib
Push in with this long hole
toward you. The sifter
moves slightly to the left.
8-26. REPLACEMENT OF LOADING MOTOR
• Removal

• Replacement
Remove the loading motor, and install the replacement
loading motor as shown below.
Figure 8-41.
The loading motor pressing-in must be less than 196N (20
kgf).
Adjust the distance between motor and pulley to 6.95
      mm.
Figure 8-40.
+0
.  2
–0.15
6.95      mm
A part
Worm gear
+0
 - 0.15
Loading 
motor
To press the motor in, first 
receive it by portion A.
Apply grease
Worm gear
Apply grease
Apply grease
Apply grease
L-M-Block.
Worm wheel gear.
Leading connect gear.
*Apply grease to 
the tip as well.
Loading
motor.
Wire
   + : Red
   -  : White
Red
Insert
(

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