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Seiko 6R20A, Техническое руководство и каталог запасных частей

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PREPARATION

 10

TECHNICAL GUIDE

Cal. 6R20A

.   Lubricate  at  the  two  points  in  the 

point  of  contact  between  the  magic 
lever and the first reduction wheel and 
arbor.

.   Lubricate  at  the  arbor  of  the  first 

reduction wheel and arbor.

  7

  8

  9

TECHNICAL GUIDE

.  Set the first reduction wheel and arbor 

(with the magic lever attached) to the 
barrel and train wheel bridge.

2.  Set the first reduction wheel and arbor 

lever.

 

Type of oil: S-4

.   S e t  t h e  m a g i c  l e v e r  t o  t h e  f i r s t 

reduction wheel and arbor.

9/24

 

Type of oil: S-4

Содержание 6R20A

Страница 1: ...tomatic winding with auxiliary hand winding mechanism x 1 0 27 4 mm 27 0 mm l Date hand Day hand and Power reserve indicator l Date Day correction function l Second hand stop mechanism l Clearance adj...

Страница 2: ...r reserve indicator 5 Date hand 1 Second hand 2 Minute hand 6 Day hand 9 Auxiliary train wheel bridge 0126 025 8 Auxiliary train wheel bridge screw 4 pcs 0012 201 7 Dial Disassembling procedures Figs...

Страница 3: ...and planet unit 1001 025 qh Sun wheel 1009 003 qd Planetary reduction wheel 1026 002 qs Barrel arbor pinion 1010 267 wj Minute wheel and pinion 0261 006 wl Cannon pinion wf Day star 0970 003 wd Day d...

Страница 4: ...n 0241 216 ta Click 0381 004 ts Escape wheel pinion 0251 310 td Barrel complete 0201 074 tj Yoke spring screw 2pcs 0012 168 tk Yoke spring 0388 071 tl Yoke 0384 061 y Setting lever 0383 060 ya Balance...

Страница 5: ...bridge screw 3 pcs Balance bridge screw Casing clamp screw 2 pcs 0012 168 0012 420 0012 067 Cross section view of the screw parts 0012 201 Auxiliary main plate screw Auxiliary train wheel bridge scre...

Страница 6: ...the stud to the stud support Make sure that the hairspring passes outside the pin of the regulator arm Be careful not to damage the hairspring 1 Initial phase Set a new balance complete with stud to...

Страница 7: ...tary reduction wheel Type of oil S 6 Lubricate at the six points on the surface of the main plate as illustrated 1 Lower hole jewel for the barrel complete 2 Lower hole jewel for the pallet fork 3 Low...

Страница 8: ...Cal 6R20A TECHNICAL GUIDE 1 Lubricate the upper hole jewel for the third wheel bridge and set the upper hole jewel with frame Then set the upper shock absorbing spring for the third wheel bridge Type...

Страница 9: ...nd arbor 1 Lubricate at the arbor of the first reduction wheel and arbor 7 8 9 TECHNICAL GUIDE 1 Set the first reduction wheel and arbor with the magic lever attached to the barrel and train wheel bri...

Страница 10: ...and pinion 11 12 13 3 Lubricate the upper hole jewel for the forth wheel and pinion 1 Lubricate at the four points in the crown wheel 1 Set the lower plate for barrel and train wheel bridge 2 Screw th...

Страница 11: ...n 2 Lubricate the center wheel pinion as illustrated 2 Type of oil S 6 Type of oil S 6 3 Set the escape wheel pinion 4 Set the barrel complete 5 Set the click 1 Set the center wheel bridge 2 Tighten t...

Страница 12: ...e winding stem in the correct order shown in the illustration 1 Lubricate the contact points between the upper and lower tubes of the setting lever and yoke and then set the setting lever 1 Setting le...

Страница 13: ...e spring 4 Try pulling out the winding stem to check that it can be done smoothly 1 Set the third wheel pinion 2 Lubricate the convex part of the fourth wheel pinion as illustrated and then set it 2 F...

Страница 14: ...n set the ratchet wheel Notes 1 Ratchet wheel 2 Tighten the ratchet wheel screw Do not tighten the ratchet wheel screw too much 3 Try turning the crown clockwise a little at its original position in o...

Страница 15: ...rated 1 Lubricate the teeth surface of the second reduction wheel as illustrated 3 Automatic train bridge 1 Second reduction wheel pinion Type of oil S 6 2 Lubricate the upper pivot of the second redu...

Страница 16: ...roperly adjusted 1 Set the minute wheel pinion 2 Lubricate the lateral surface of the hour wheel as illustrated and then set the hour wheel 2 Hour wheel 1 Minute wheel pinion Type of oil S 6 3 Lubrica...

Страница 17: ...ged as shown in the illustration Day driving wheel Day star Day jumper 4 Set the day jumper Make sure that the day jumper and the day star are correctly engaged as shown in the illustration Day star 1...

Страница 18: ...ng wheel 2 Date corrector setting wheel Date star Date jumper 4 Set the date jumper Make sure that the date jumper and date star are correctly engaged as shown in the illustration Date star 5 Lubricat...

Страница 19: ...bricate the planetary reduction wheel as illustrated 1 Planetary reduction wheel 2 Barrel arbor pinion 4 Intermediate power reserve wheel 5 Power reserve wheel Type of oil S 6 2 Set the barrel arbor p...

Страница 20: ...y train wheel bridge screws 4 pcs Type of oil AO 3 Moebius A 2 Lubricate the day jumper as illustrated Type of oil AO 3 Moebius A 3 Set the auxiliary train wheel bridge 4 Tighten the auxiliary train w...

Страница 21: ...es not lean to one side TECHNICAL GUIDE Cal 6R20A 21 24 1 Names of the parts A Stud B Regulator pin C Regulator arm D Stud support 2 Rotate B to fine tune the position of the outer end of the hairspri...

Страница 22: ...1 Set the oscillating weight and tighten the screw Make sure that the oscillating weight is correctly positioned REASSEMBLE THE MOVEMENT 21 TECHNICAL GUIDE Cal 6R20A 22 24...

Страница 23: ...nd moves after the date hand is correctly aligned If not the day hand and the date hand do not move in the proper order If they are not correctly aligned remove the auxiliary train wheel bridge and re...

Страница 24: ...hour hand at the 12 o clock position 3 Mount the minute hand at the 12 o clock position 4 Turn the hour and minute hands to check the time when the date is changed 5 Mount the second hand at the 12 o...

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