Handling Instructions To Press Fitting The Hands - Casio QW-4343 Service Manual

5-5 HANDLING INSTRUCTIONS TO PRESS FITTING THE HANDS

When you need to press hands into place in case of maintenance and other occasions, follow the
instruction below to adjust the polarity of the rotor wheel and the positions of the hands.
1) Press the 24-hour hand and the 3H side hour hand into place near the position of 23H.
2) Drive the 3H side hour hand to a little before the 24H position using normal rotation.
Operation: AC → Press C × 2 → Adjust with D
3) While adjusting the polarity of the 3H side minute hand, position the 3H side hour hand precisely
at the 24H position
Operation: AC → Press C × 2 → Keep holding down D × 2 each time (even number times) to set
the 3H side hour hand.
4) Press fit the 3H minute hand. (Press fit within ±1° as a guide.)
5) Adjust the polarity of the second hand and then press fit the second hand. (Press fit within ±1° as
a guide.)
Operation: AC → Press D × 2
6) Position the 24H hour hand precisely at the 24H position using normal rotation.
Operation: AC → Press C × 1 → Adjust with D
7) Press fit the hour hand into the 12H position.
8) Reverse the hour hand about 30 minute, and then drive the hand precisely at the 12H position using
normal rotation.
Operation: AC → Press C × 1 → Reverse with B → Adjust with D
9) Press fit the minute hand into the 12H position.
10) Adjust the polarity of the indicator hand.
Operation: AC → Press D × 2
11) Press the indicator hand into the 12H position. (within ±1°)
How to check the polarity adjustment (one example)
After setting each hand to the baseline positions with H-SET, turn on the AC.
* When pressing D for the first time, the second hand moves.
* When pressing B for the first time, the second hand moves.
* After pressing C × 2, the indicator hand moves when D is pressed for the first time.
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