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TECHNICAL GUIDE
20 Calendar corrector setting wheel D
Lubricating
Lubricate the inner edge of the oval hole on the main plate where the calendar corrector
setting wheel oscillates.
21 Intermediate wheel for calendar correction C ~ 23 Intermediate wheel for calendar correction A
Lubricating
II.
Value checking
Coil block resistance
3.0 kW ~ 3.4 kW
Current consumption
For the whole movement
For the circuit block only
III. Troubleshooting
Symptoms
The watch stops.
The current consumption
for the whole movement
is excessive.
The date or day hand
dose not move.
The date or day of the
week changes at a wrong
timing.
Moebius A
Moebius A
Less than 1.2 mA
:
Less than 0.4 mA
:
Problems
The battery is weak or dead.
The hands are worn out.
The coil is burned out.
The wheels are soiled with dirt
and dust. The amount of oil is
excessive(wringing) .
Dirt, dust or chips are adhere to
the movement.
The driving pulse is generated due
to the excessive load to the wheels.
(The oil is deteriorated, leaked or
ran out.)
T h e r e l e v a n t w h e e l s a r e
disengaged.
T h e r e l e v a n t j u m p e r s a r e
disengaged.
The date driving wheel and/or day
driving wheel are wrongly
installed.
The hour, minute hands are
wrongly installed.
Oval hole on the main plate
Measure the battery voltage. Change the battery.
Change the hands.
Measure the coil block resistance. Change the
coil block.
Remove all dust or dirt. Clean up the relevant
parts. Be careful not to damage the teeth of the
plastic parts while cleaning.
Remove all dust or dirt.
Measure the current consumption for the circuit
block alone. If the result is within the standard
range, overhaul and clean the movement parts,
and then measure the current consumption for
the whole movement again.
Check the setting position of the relevant wheels
and jumpers.
Reinstall the relevant wheels correctly. (Refer
to the instructions on the page 5 and 6.)
Reinstall the hour and minute hands. (Refer to
the instructions on the page 4.)
Cal. 5Y85A/5Y89A
Solutions
7
2004-04
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