GE STD15C - SERVICING; RENEWAL PARTS

GEK—45307
SERVICING
Check
any
replacement
telephone
relay
for
mechanical
operation
before
installation,
to
see
that
it
operates
smoothly
and
that
the
contacts
are
correctly
adjusted.
With
the
relay
de-energized,
each
normally-open
contact
should
have a
gap
of
0.010-
0.015
Inch.
Observe
the
wipe
on
each
normally-closed
contact
by
deflecting
the
stationary
contact
member
towards
the
frame.
Wipe
should
be
approximately
0.005
inch.
The
wipe
on
each
normally-open
contact
should be
approximately
0.005
inch.
Check by
Inserting
a
0.005
Inch
shim
between
the
residual
screw
and
the
pole
piece,
and
operating
the
armature
by
hand.
The
normally—open
contacts
should
make
before
the
residual
screw
strikes
the
shim.
RENEWAL
PARTS
Sufficient
quantities
of
renewal
parts
should
be
kept
in
stock
for
the
prompt
replacement
of
any
that
are
worn,
broken
or
damaged.
When
ordering
renewal
parts,
address
the
nearest
Sales
Office
of
the
General
Electric
Company.
Specify
the
name
of
the
part
wanted,
quantity
required,
and
complete
nameplate
data,
Including
the
serial
number,
of
the
relay
for which
the
part
is
required.
The
serial
number
may
be
found
stamped
on
the
Instantaneous
unit
in
black
ink.
If
possible,
give
the
General
Electric
Company
requisition
number
on
which
the
relay
was
furnished.
Since
the
last
edition,
the
equation
has
been
cahnged
in
the
section
on
Unbalance
Current
Measurement
and
Figure 7b
has
been added.
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