Pioneer DRM-7000 Service Manual page 123

6.2 ADJUSTMENT FOR MECHANICAL OPERATIONS
6.2.1 Height Adjustment of the D Guides L
and R
• Purpose:
To adjust the top height of the D guides with respect to the
reference surface of the carriage base.
• Method:
Turn the D guide adjustment screw (DG height pin) on the
carriage base.
• Contents:
Adjust the top heights of the D guides L and R on the carriage
base.
Adjust the upper surface of the D guides to 31 ± 0.2mm higher
than the reference surface of the carriage base.
• Preparation:
Set the unit to Diag-robotics-individually in Manual elevating
operation mode.
• Adjustment point:
DG height pin
• Left Side
(1) Move the carriage base to a position (around [175] to [200] )
which permits it to be seen from the front and the loading motor
to be rotated.
(2) Rotate the turn table counterclockwise in the Diag-robotics-
individually in Manual operation mode.
Caution: Do not turn it clockwise to avoid a damage.
(3) Stop the rotation when the turn table has been turned about 70
degrees from the front.
(4) Using a measuring device, confirm that the distance between
the upper surface of the carriage base and the upper surface of
the D guide is 31 ± 0.2mm.
If not, adjust the D guide adjustment screw. c
(5) Lock the screws when the adjustment is completed. k
• Right side
(1) As with the left side, rotate the turn table counterclockwise
and stop it when it has been rotated about 290 degrees from
the front.
(2) The subsequent procedures are the same as for the left side.
DG height pin
D guide L
31 ± 0.2 mm
Reference
surface
Fig. 1 Height adjustment of the D-guides
DG height pin
D guide R
31 ± 0.2 mm
Reference
surface
6.2.2 Right and Left Adjustment of the
Carriage Base
• Purpose:
To adjust the carriage base so that it becomes right and left
horizontal to the main unit.
• Method:
Move up or down the belt stopper which connects between the
elevator belt (on the right side) and the carriage base by eccentric
bushing.
• Contents:
Adjust the height of the movable mounting position at right side
against the fixed belt stopper at left side.
Adjust the levelness of the carriage base so that the difference
between the right and left is less than 0.3mm.
• Preparation:
Set the unit to Diag-robotics-individually in Manual elevating
operation mode.
Prepare the magazine. (Be sure not to set the upper four discs.)
• Adjustment point:
Eccentric bushing
∗ Be sure to check the adjustment position is around [200].
∗ Confirm the height of the D guides in advance. Be sure to check
the height of the interrupter UP when the adjustment is completed.
(1) Move the carriage base to [151] to [170].
(2) Set the magazine only.
(3) Manually rotate the loading motor to once bring the D guides
out to the front, then rotate it in the reverse direction until the
D guides no longer touch the magazine (set to a state just before
the turn table would start to rotate).
Caution: Check that the D guide does not overlap the magazine
as viewed from directly above. Moving the carriage
base up and down with such overlap will damage the
unit.
(4) Move the carriage base to [199].
(5) While observing through the hole at the top of the magazine,
manually move the carriage base up and down to align the slot
of the disc rack R on the right side with the right side of the D
guide.
(6) Confirm visually that the difference in height between the slot
of the disc rack L on the left side and the left side of the D
guide is less than 0.3mm. If not, perform the following
adjustment.
Disk rack L
D guide L
Chuk
Left side
Fig. 2
Note: Do not use the position of the chuck, as it may not be accurate.
(7) Temporarily move the carriage base down (to around [163] )
to enable adjustment of the eccentric bushing.
(8) Loosen the hexagon coupling bolt for fixing, then temporarily
tighten it. d
DRM-7000
Disc rack R
D guide R
Chuk
Right side
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