Teac A-450 - BRAKE BRACKET; CAPSTAN DRIVE ASSY;DRIVE BELT

2. Connect the wires to the head terminal pins
quickly to prevent breaking of internal wires of
the head due to overheating.
3. After replacement, always clean the driving
surfaces of the Pinch Roller with the TEAC
TZ-261B Rubber Cleaner or with pure alcohol,
then proceed directly to the PINCH ROLLER
PRESSURE adjustment section. See page 11.
3-5. BRAKE BRACKET
1. Remove the Trim Case Cover. See 3-1 section.
2. Remove the Cassette Holder. See 3-3 section.
3. Detach the 2 E-rings (A) and then take off the Spring
(B) and the Brake Bracket (C) from the chassis.
4. Remove each Brake Shoe (D) from the Brake Bracket.
3-6. CAPSTAN DRIVE ASS’Y/DRIVE BELT
1. Remove the Bottom Cover. See 3-1 section.
Detach the Flywheel Bearing Plate (A) from the
mounting studs (D and F) by taking off the 2 screws.
3. Take out the Drive Belt (C) from the Flywheel (B) and
the Motor Pulley (G).
4. Carefully lift out the Flywheel from the Capstan
Housing Ass’y (E).
5. Remove the Capstan Housing Ass’y from the chassis by
unscrewing the 3 screws.
NOTE
1. Since the Capstan Drive Ass’y is a precision part,
TEAC specially distributes the Flywheel and the
Capstan Housing Ass’y as a whole assembly.
Hence, always replace the Flywheel together
with the Capstan Housing Ass’y.
2. Clean all driving surfaces of the Flywheel and the
Drive Belt with TEAC TZ-261 Cleaner kit (“‘A”
for Flywheel. ““B” for Belt) or with pure alcohol.
3. Do not bend the Capstan Shaft as this will
increase wow/flutter or speed deviation.
4. During re-assembly re-attach the Drive Belt with-
out twisting or stretching it.
5. The Belt should always be attached right and in
the predetermined place.
Lubrication:
For lubrication of the newly replaced Capstan Drive
Ass’y, the following should be observed.
1. Apply a drop of a light machine oil of good
quality (e.g.: TEAC TZ-255) with an oil ap-
plicator to the shaft of the Flywheel and spread
oil evenly over the shaft with a flannel cloth.
Afier installing the Flywheel, be sure to clean the
tape moving portion of shaft with TEAC
TZ-261A Head Cleaner or with pure alcohol.
Viewed from
Bottom
Viewed from
Bottom
T-458
Fig. 3-7 Capastan Drive Ass’y/Drive Belt Replacements