Teac X-3 - 2-5-2 BACK TENSION; 2-6 PINCH ROLLER PRESSURE

2-5-2. BACK TENSION
1.
2.
Hold the right tension arm up using a rubber band.
Mount an empty 7” reel onto the supply (left) reel table, and at-
tach a spring scale to the reel with a string.
. Place the deck in the play mode.
. Using a steady, smooth motion, pull against the motor torque to
draw the scale away from the reel.
. After making sure that the reel motion is smooth (the string
should not be rubbing against the reel flanges), note the value in-
dicated on the scale.
. The proper value is between 220 g-cm (3.06 02-inch) and 280
g-cm (3.69 oz-inch).
. If necessary, adjust the slider of the resistor (R802) until the
proper torque value is obtained. See Fig. 2-6.
Resister
(R802)
Slider
2-6 PINCH ROLLER PRESSURE
1. Hold the right tension arm using a rubber band, string, etc.
2. Place the deck in the play mode without threading any tape.
3. Attach a spring scale to the pinch roller as shown in Fig. 2-7,
4. Pull the pinch roller away from the capstan shaft (on a plane
intersecting the center of the capstan shaft and the pinch roller)
until the capstan shaft and the pinch roller are separated.
5. Ease pressure on the scale until the pinch roller just begins to
turn. The scale should then be read 1.8 kg to 2.2 kg (3-15/16
Ibs to 4-7/8 Ibs).
Adjust Screw
Pinch Roller
Spring Scale
Fig. 2-7