GE Magne-Blast AM-13.8-1000-3H - Repair and Replacement Procedures; Arc Chute Repair

OEI
-
88766
I
4
«
Overloading
.
REMEDY
!
Replace
breaker
with
one
of
adequate
rating
for
present
or
future
load
*
or
re
-
arrange
circuits
so
as
to
remove
excess
load
*
5
=
Primary
connections
of
inadequate
capacity
*
REMEDY
*
;
Increase
size
or
number
of
conductors
or
remove
excess
cur
-
rent
*
6
.
Loose
connections
or
terminal
connectors
*
REMEDYi
Tighten
.
)
7
.
Ambient
temperature
too
high
*
REMEDYi
Relocate
in
a
coder
place
or
arrange
some
means
of
cooling
*
REPAIR
AND
REPLACEMENT
The
following
information
covers
in
detail
the
proper
method
of
removing
various
parts
of
the
breaker
in
order
to
make
any
necessary
repairs
*
This
section
includes
only
those
repairs
that
can
be
made
at
-
the
instal
-
lation
on
parts
of
the
breaker
that
are
most
subject
to
damage
or
wear
*
UPON
COMPLETION
OP
ANY
REPAIR
WORK
,
ALL
BREAKER
AND
MECHA
-
Re
fer
to
the
section
on
INSTALLATION
*
IMPORTANT
s
NISM
ADJUSTMENTS
MUST
BE
CHECKED
*
paying
particular
attention
to
ADJUSTMENTS
and
PINAL
INSPECTION
*
Arc
Chute
(
To
inspect
or
replace
blow
-
out
coils
)
To
remove
an
arc
chute
*
first
open
the
breaker
and
remove
the
rear
5
side
*
and
interphase
barriers
*
Loosen
the
two
upper
support
bolts
(
2
)
Fig
*
19
and
the
one
lower
connection
bolt
(
9
)
and
roll
the
arc
chute
to
the
rear
of
the
breaker
platform
*
The
arc
chute
can
be
removed
from
the
breaker
as
described
in
ARC
CHUTE
REMOVAL
*
page
13
,
To
disassemble
the
arc
chute
after
it
has
been
removed
from
the
breaker
*
proceed
as
follows
:
1
=
Remove
the
assembly
bolts
(
1
and
2
}
Fig
*
16
,
2
*
Remove
the
side
brace
(
8
)
*
3
*
Remove
six
blow
-
out
coil
core
bolts
(
3
)
Fig
*
17
«
4
*
Remove
six
pole
pieces
(
5
)
,
5
*
Remove
support
bolts
(
13
)
and
supports
(
2
)
.
6
*
Remove
rauffer
support
bolts
(
15
)
and
muffer
supports
(
14
)
*
7
o
Lift
the
three
upper
sections
of
the
arc
chute
(
l
6
)
from
the
bolts
being
careful
to
collect
all
the
small
spacers
*
washers
*
etc
*
21
Courtesy of NationalSwitchgear.com