Hour Chronograph Mechanism - Seiko 6138A Manual

6138A Hour Chronograph Meehanism
⑫ Cale面
山 e scr帥
颯 3 →
After tightening the calendar plate
screws. check whether or not each
lever operates smoothly by pressing
the portion marked with "O
on the
hour fly-back /euer. Causes of mal-
functions are considered to come
from defective assembly and/or lever
warp when replaced with a new one.
Ca l end ar p la t e
Pav attention not to break or bend
thl hour hand axle@when attaching
or detaching the calendar plate.
When assembling the calendar
phte, check on pivoting of the hour
hand axle, and the interlocking con-
dition between the hour wheel and
the intermediate date wheel. If the
hour fly-back /euer protrudes to the
outer circumferential side. lhe calen-
dar phte cannot be assembled. Thus,
w h eel s t op l ev er
l. The hour recording stoP lever
axle is designed as shown in Fig.
8; when detaching the sPring,
Fig. 8
remove it by slightly bending it.
l nt er me d ia te h ou r
stop lever
2. The hour recording stop lever
spring axle is an eccentric pin.
Do not turn it as it is not screw.
If it is turned inadvertentlY, al-
ways cofect it so that the groove
of the eccentric prn (arrow mark)
fac.es the center of the hour
recording wheel. Correct tt in a
direction
that spring force be-
comes strong as illustrated left in
recording wheel stop lever
H ou r r e co r d in g whe e l
Θ
tjon around the eccentric pin of the
plate is shown in the following
diagram. Correctly set the eccentric
pin in the grooved portion.
H ou r h am me r s pr i n g
H ou r f l y - b ac k l ev e r
M ai n p la t e
H ou r f l y - b ac k l e v er
l. Refer to Fig. 15 in 61384-7 for
the set position of the hour
fly-back lever. The cross section
diagram is shown in Fig. 10.
Correctly set it to the eccentric
portion.
2. Do not tum the eccentric pin of
the hour fly-back lever. lf it is
turned inadvertently, correct it
as shown in Fig. 11.
Fi g. 11 1
C o r r e c t t he
e c c e nt ri c
' pin
so that the larger
surface of it faces the
second button
::I:Ⅲ
∝ ①
Refer to Fig.17h6138A‑8 and V
the fo1lowing diagram for the
set position of the力 ο "力 ' 〃
a"
1. Set position of the 力 ο "
力 α ""' " α χ ル
彦 趙 琥 デ 増 彎 ¶ 忠
2. Interlocking with theゴ
" ' ι ' "' グ "' '
力 ο ' " " ' ο ο r磯" g"hο ι ' s' ο ρ ' ο レ ' "
H our ham m er oi n
H o ur h am me r
In te rmed i at e
ho ur re c o rd i ng
P l ai n-
S e c t i on
wh e e l s to p
l ev er
Fig 13
酔 バ iLlk
① HOur
∞ d"Wttd並
¨ リ
④ HOur
∞ d"Whee̲̲
r ec o rd in g
Pay attention not to scratch
the teeth of the hour re-
cording wfteel when handl-
ing it.
Assemble the intermediate
date wheel with the pinion
positioned upward.
/
≠
≠
/
The hour recording stop
lever spring axle is an
eccentric pin;
do not
turn it. If it is turned
inadvertently, adjust it
by referring to Fig. 9.
① h... 赫 劃
Ｏ
④
Ｏ
‑ 6 1 3 8 A ‑ 6 ‑
Fig 10
(R ef er t o Fi g.14l
Fi9 14
〇 ◎ 8 亀
〇
買 ざ 三 ― MШ "wheel O
―
cannonpinion④
The hour fly-back lever axle is an
eccentric pin; do not turn it. If it is
/ ヽ t u r n e d i n a d v e r t e n t l y , a d J u s t i t b y
{ R e f e r t o F i 9 . 1 0 ) r e f e r r i l n g t o F i g . 1 0 .
C e nt e r w hee l
w he el b r i dg e
② 陥 W Wttd一
―
C e nt e r w he el br i d ge s c r e w