Gear In Gear Box Replacement - Sony BVW-55 Maintenance Manual

4-2. Gear in Gear Box Replacement

Outline
Replacement
VH cleaner assembly removal
AT head assembly removal
Plate(2) removal
Gear box housing removal
GB(2) gear assembly replacement
GB(1) gear assembly replacement
GB(3) gear assembly replacement
Gear box housing installation
Plate(2) installation
ME gear installation
Timing belt installation check
AT head assembly installation
VH cleaner assembly installation
Adjustment after replacement
AT head position adjustment
Precautions
. The gear in a gear box can be replaced with the cassette compartment installed.
. Bearings are provided at the tip of each gear assembly. Be careful not to lose them
during removal and installation.
Preparations
1. Put the unit into the unthreading end state.
2. Turn off the power.
3. Remove the upper frame.
(Refer to the maintenance manual Part 1, Section 1-6.)
Tools
. Torque screwdriver (3 kg.cm):
. Torque screwdriver bit (for M1.4):
. Grease (PG-662):
. Tweezers
Replacement
1. VH cleaner assembly removal
Remove the VH cleaner assembly.
(Refer to Section 3-6.)
2. AT head assembly removal
Remove the AT head assembly.
(Refer to Section 3-15.)
BVW-55 P2
J-6325-400-A
J-6325-110-A
7-651-000-59
4-2. Gear in Gear Box Replacement
4-5