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244479
990202
990203
M317
990223 208250 M329 200363 206296 M102
Fig. 4.2 Bottom view of upper mounting plate.
M303
M302
215556
990234
M302
M303
201605
215563
M120
C.
- "
212826C
211066
4.1.1 The Eccentric segment (990203).
The eccentric segment is situated underneath upper
mounting plate 990220, and is linked with the operat-
ing lever shaft 990225. The eccentric segment moves
the pressure wheel arm 990202 with pressure wheel
990234 against the capstan when the operating lever
is set to position Normal Forward Drive.
The lifting arm 990201 is linked with the eccentric
segment 990203 and lifts the transfer wheel 990233
from the motor pulley 254040 when the operating
lever is set to one of the following positions:
Fast forward winding, fast reverse winding, neutral
or free.
The transfer wheel is engaged with the motor pulley
in normal forward drive. See fig. 4.1.
Adjustments:
Set the operating lever in neutral position, and adjust
the resting position of the pressure roller assembly
by bending bracket A. See fig. 4.2.
4.1.2 Pressure Wheel Arm (990202).
The pressure roller assembly is moved against the
capstan by the eccentric segment 990203 when the
operating lever 990225 is set to position normal
forward drive. The pressure wheel 990234 is sus-
pended under balanced spring tension as shown in
fig. 4.3.
Adjustments:
The balanced spring tension is adjusted to obtain
that the pressure from the pressure wheel against the
capstan and the tape is evenly distributed across the
width of the tape in normal forward drive.
Start tape recorder in normal forward drive. Twist the
latch 215563 clockwise or counterclockwise after
first having loosened the screw M120, until the tape
moves smoothly over the pressure wheel. No air
bubbles must be formed between the tape and the
pressure ring on the pressure wheel.
4.1.3 The Operating Arm (248186)
The operating arm is attached to the lower mounting
plate 990216 D, and operates clutch levers 990229 and
990228 underneath the friction discs 209658. See
fig. 4.5. The operating arm is linked with the operat-
ing lever 990225.
Figures 4.9 and 4.6 show the take-up turntable
assembly 990227 and supply turntable assembly
990226 with friction discs 209658 and clutch levers
990229 and 990228.
PRESSURE WHEEL ASSEMBLY, COMPLETE
990202
Fig. 4.3 Pressure wheel arm, exploded view.
7
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