8
5.
Apparatus and tools
For
the
different operations at the level
of
the " Repair and A
Maintenance Center
",
the
following
equipment
is neces- W
sary. It can be obtained
from
LONGINES
S.
A.,
CH-
2610 ST-IMIER.
5.1 Specific equipment for the calibers of
the
family L950 and derivatives
5.1
.1 Movement-
holder
with adjustable
support-
ing screw,
for
hand-fitting
(reference L950.0/
L990.0-001 /9).
5.1
.2 Insulated screwdriver;
for
adjusting the
trim-
mer
without
affecting its capacity.
5.1.3 ESAMETRE 2 testing apparatus.
5.1.4 Apparatus
for
checking the instantaneous
rate,
either
-a
watch-timer
with
an
inductive
sensor,
for
testing movements and open watches
supplied
with
current
by
their
own battery,
or
-a
watch-timer
an acoustic sensor (with
metal point),
for
testing closed watches
supplied
with
current
by
their
own battery,
or
-a
watch-timer
with a stabilized 1.55 V
current
supply
,
for
detecting
current
im-
pulses by means
of
a false battery.
For
all
watch-timing
appliances,
the
fol-
lowing
criteria
should
be observed:
-Stability
of
internal
oscillator
:
;;.
1.1 o-
7
-Read-out
at
1
/10o
second
-Reading
range ± 9,99
s/d
.
5.2
Non-specific equipment
1. Suitable
tools
for
opening and closing the A
various types
of
cases. W
2. Tools
for
changing
the
various types
of
glasses.
3.
Apparatus
for
testing
water
-resistance.
4. Cleaning machine.
6.
Ordinary operations
6.1 Replacing the battery
6.1.1 Remove the back
of
the case.
6.1
.2
Ra
ise the battery by means
of
a screwdrive
r.
6.1
.3 Remove the defective battery.
N.
B.:
To
avoid any risk
of
pollution
, used batteries
should
A
be destroyed in
accordance
with
the safety regulations in W
force
in the concerned
country
.
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