Sony BVW-55 Maintenance Manual page 312

4-11. T Tension Regulator Arm Assembly Replacement
Replacement
1. T tension regulator arm assembly
removal
(1) Unhook the spring of the tension regulator
arm shown in the figure.
At that time, do not forget the position where
the spring has been hooked.
(2) Remove the stop washer and polywasher
using tweezers, then remove the T tension
regulator arm assembly.
2. T tension regulator arm assembly
installation
(1) Insert a new T tension regulator arm assem-
bly into the shaft so that the pin of the T
drawer arm is put between the spring hook
plate and regulator arm of the T tension
regulator arm assembly, and then install a
new stop washer and a polywasher.
(2) Hook the spring removed in (1) of step 1 in
the former position.
3. T tension regulator guide cleaning
(1) Clean the guide roller of the tension regulator
arm assembly with cleaning cloth moistened
with cleaning fluid.
(2) After cleaning, wipe with dry cloth.
Adjustment after replacement
4. REV back tension adjustment
(Refer to Section 5-3-2.)
5. Tape running adjustment
(Refer to Section 5-4.)
4-40
Memorize the position where
the spring has been hooked
Pin of the
T drawer arm
1
2
3
T tension regulator arm assembly
Stop washer
Polywasher
(ø2, t = 0.13)
Pin of the
T drawer arm
Spring
BVW-55 P2