Seiko 7d46A - 7 D48 Technical Instruction No.6

7D** Technical Instruction
No.6
No. PROSESS ILLUSTRATIONS AND SPECIAL INSTRUCTIONS
Lubricate the upper pivots
of the wheels.
(5#, 76#, 4#, 3#, 74#, 75#,
Tips of the teeth of the
pinion of generating rotor
66#)
↓
63
Set the hour and
minute coil block.
↓
62
Set the second coil
block.
↓
61
Set the generating
coil block.
↓
Check each coil
block resistance.
Lubricate the upper pivots of the wheels.
 5#, 76#
*Type of oil, oil quantity: A0-2II-1
(To maintain good performance)
◆4#, 3#, 74#, 75#
*Type of oil, oil quantity: A0-3II-1
(To maintain good performance)
◆Tips of the teeth of the pinion of the generating
rotor (66#)
*Type of oil, oil quantity: A0-3II-2
(To prevent parts from wearing)
<62> Set the second coil block.
*When mounting the second coil block, take care
not to deform or deform the coil block core.
(To prevent deterioration of the motor)
<61> Set the generating coil block.
*When mounting the generating coil
block, take care not to deform or
deform the coil block core. (To prevent
deterioration of the motor)
<63> Set the hour and minute coil block.
*When mounting the hour and minute coil block, take
care not to distort or deform the coil block core.
(To prevent deterioration of the motor)
5#
4#
3#
76#
75#
74#
66#
Check each coil block resistance.
*Measure the coil block resistance after
securely installing each coil block to the
movement.
Hour and minute coil block
Coil block for driving: 1.00kΩ–1.25kΩ
Coil block for detection: 270Ω– 330Ω
Second coil block
2.00kΩ – 2.45kΩ
Generating coil block
360Ω – 420Ω
Pattern for checking the coil for detection
Pattern for checking the coil for driving