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New Measurement Hub
Tension Gauge
Fig. 5
MECHANICAL
ADJUSTMENTS
Instruments required:
Spring scale (having a range of O~ 1 kgr), tension gauge (having a range of
O~ 100 gr-cm), new
measurement
hub.
Fig. 6
Detection Piece
MEASUREMENT
METHOD
ADJUSTMENT
METHOD
REMARKS
Adjustment of
pressure of
pressure roller.
Playback
500+50er
Hook a spring
scale and pull it as
shown in fig. 4.
Adjust by bending
(a) part in either
of the directions.
Measure the value at the
| moment when the pressure
roller moves
away from
the
| capstan.
Takeup tension
measurement.
Playback
| 65-+15gr-cm |
See fig. 5.
. Clean away any oilaand dust
adhering to takeup belt,
motor belt and take up reel
table.
Measurement of
detecting piece
tension.
Playback
| 60+20 gr-cm
See fig. 6.
Press the detectin:
piece at
part A in the direci on of the
' arrow, by the tensian gauge,
keeping vertical tostraight
| line.
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