Section 4
MECHANICAL
ADJUSTMENTS
CONTENTS
4·1. SERVICING FIXTURES AND TOOLS
.....................................................................................
4·3
4·2.
TAPE INTERCHANGEABILITY ADJUSTMENT PROCEDURES
.............................
4·3
4-2-1.
ADJUSTMENT
FLOW
CHART
......................................................................................................
4-4
4-2-2. COARSE
ADJUSTMENT
OF
THE
TAPE GUIDE POST HEIGHTS (P2 and
P3)
....................... 4-5
4-2-3.
ADJUSTMENT
OF
THE
PULL OUT POST
(P5)
HEIGHT
............................................................ 4-6
4-2-4.
COARSE
ADJUSTMENT
OF
THE
A/C
HEAD HEIGHT .............................................................
4-7
4-2-5.
TILT
&
AZIMUTH
ADJUSTMENT
OF
THE
A/C
HEAD ............................................................... 4-8
4-2-6.
FINE
ADJUSTMENT
OF
THE
TAPE GUIDE POST HEIGHT (P2 and
P3)
(LINEARITY) ......... 4-9
4-2-7.
FINE
ADJUSTMENT
OF
THE
A/C
HEAD
HEIGHT
.................................................................... 4-10
4-2-8.
COARSE
ADJUSTMENT
OF THE
A/C
HEAD
HORIZONTAL
POSITION (X-VALUE) .............. 4-10
4-2-9.
FINE
ADJUSTMENT
OF
THE
A/C
HEAD
HORIZONTAL
POSITION (X-VALUE) .................... 4-10
4·3. OTHER MECHANICAL ADJUSTMENT PROCEDURES
..............................................
4·11
4-3-1.
MEASUREMENT
AND
ADJUSTMENT
OF
BACK
TENSION .....................................................
4-11
4-3-2.
HEIGHT
ADJUSTMENT
OF
THE REEL TABLES ....................................................................... 4-12
4-3-3.
ADJUSTMENT
OF
THE
CAPSTAN THRUST GAP ..................................................................... 4-13
4-3-4.
MEASUREMENT
AND
ADJUSTMENT
OF
THE BRAKE TORQUE ........................................... 4-14
4-3-5.
ADJUSTMENT
OF PRESSING FORCE
OF
PRESSURE ROLLER UNIT .................................. 4-14
4-3-6.
ADJUSTMENT
OF
THE
REV. TENSION SENSOR POSITION .................................................. 4-15
4-3-7.
ADJUSTMENT
OF
THE
FG
HEAD
GAP ...................................................................................... 4-15
4·4. ASSEMBLY AND ADJUSTMENT PROCEDURES OF MECHANISM
...................
4·16
4-4-1.
CONFIRMATION
OF
ALIGNMENT
CONDITION ........................................................................ 4-16
4-4-2.
ASSEMBLY
PROCEDURES
OF
SUB
CAM
GEAR, RING GEAR
AND
DETENT ARM ............ 4-17
4-4-3.
ASSEMBLY
PROCEDURES OF
MAIN
CAM
GEAR
AND
PINCH SPEED DOWN GEAR ....... 4-17
4-4-4.
ASSEMBLY
PROCEDURES OF LOADING CAM GEAR
AND
RETAINER GEAR .................... 4-17
4-4-5.
ASSEMBLY
PROCEDURES OF CENTER GEAR ........................................................................ 4-18
4-4-6.
ASSEMBLY
PROCEDURES
OF
MAIN
LEVER
AND
CAM FOLLOWER ARM UNIT ............... 4-18
4-4-7.
ASSEMBLY
PROCEDURES OF LOADING GEAR
(T),
LOADING GEAR
(S)
AND
SECTOR GEAR .............................................................................................................................. 4-18
4-4-8.
ASSEMBLY
PROCEDURES OF CONNECTION GEAR .............................................................. 4-19
4-4-9.
ASSEMBLY
PROCEDURES OF MODE SWITCH
AND
P5
PULL OUT SECTOR GEAR. ......... 4-19
4-4-10.
ASSEMBLY
PROCEDURES OF PINCH
CAM
AND
PRESSURE ROLLER UNIT ..................... 4-19
4-4-11.
ASSEMBLY
PROCEDURES
OF
GEAR BASE UNIT ................................................................... 4-20
4-4-12.
REINSTALLATION
OF
CASSETIE
COMPARTMENT ................................................................ 4-20
4-1
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