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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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