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.,
15
Recommended batteries
The batteries used
are
in
accordance
with the lEC
standard,
No. 86-6FlOO.
Type
Make
Country
of
origin
439
Pertrix
England
P.P.9
Berec
England
276
Eveready
U.S.A.
495
EMCE
Germany
Maintenance
A. THE CABINET
If the
cabinet
becomes
soiled
it can, after removal ( chapter V-B), be c1eaned
with
so ap and
water,
or
with
a
light
scouring agent.
B. THE SEGMENT SWITCHES
When the segment
switches
no longer function properly due to dirty
coutacts,
they can be treated
with switch
oil
(for code
uumber
see chapter
XI-A).
This oil has cleaning and lubricating properties.
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