Marantz 5010 - 4. Adjustment Procedures; 4.1 Mechanical Adjustments

4. ADJUSTMENT PROCEDURES
4.1 MECHANICAL ADJUSTMENTS
4.1.1 Adjusting the Flywheel Thrust
Adjust the thrust screw at the flywheel bracket
until the clearance between the capstan tail end
and thrust bearing is 0.1 to 0.3mm as shown,
using a phillips screw driver. For adjusting, feel
of axial dropping of the flywheel for proper
clearance as this cannot been seen through, Then
paint the screw to lock.
4.1.2 Adjusting Pause Timing
Set the unit in the play mode of operation. Then,
adjust the bend angle of the pinch roller bracket
arm (point A in the line drawing) until the clear-
ance between the pinch roller and capstan is
0.1 to 0.3 mm at the time when the take-up reel
is stopped by slowly pressing the PAUSE push-
button down,
NOTE: To widen the clearance, make the bend
angle smaller (in the direction C). To
make the clearance narrower, widen the
bend angle (in the direction B).
4.1.3 Adjusting the Pinch Roller Pressure
Measure the pressure of the pinch roller using a
gauge as shown. For measurement, draw the
pinch roller in the arrow direction in which it is
detached from the capstan shaft and gradually
return it toward the capstan. Read the gauge at
the time when the pinch roller starts turning. The
standard pressure is 300+50g. !f the pressure is
out of the range, bend the pinch roller spring
around the point A in the direction B or C.
NOTE: To make the pressure strong, bend in
the direction B. To make the pressure
weak, bend in the direction C.