Seiko 6138A - Hour Chronograph Mechanism

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.
Calendar
plate
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,
wheel
stop
lever
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.
lntermediate
hour
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
Hour recording
wheel
Θ
tjon around the eccentric
pin
of the
plate
is shown in
the
following
diagram. Correctly set
the
eccentric
pin
in the
grooved
portion.
Hour
hammer
spring
Hour fly-back
lever
Main
plate
Hour fly-back lever
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.
Fig.11
1
Correct
the
eccentric
'
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″″′″αχル
彦趙琥デ
増
彎
¶忠
2.Interlockingwiththeゴ
″′
ι′
″
′グ″′′
力ο′
″
″′οοr磯″
g"hο
ι
′s′ο
ρ
′οレ′″
Hour
hammer
oin
Hourhammer
Intermediate
hour
recording
Plain-
Section
wheel stop
lever
Fig13
酔バ
iLlk
①HOur
∞d"Wttd並
¨

リ
④HOur
∞d"Whee
recording
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
‑6138A‑6‑
Fig10
(Refer
to Fig.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
turnedinadvertently,adJustitby
{RefertoFi9.10)referrilngtoFig.10.
Center wheel
wheel bridge
②
陥WWttd一
―
Center
wheel bridge screw