GE Magne-Blast AM-13.8-1000-3H - Page 26

GEI
-
88766
t
>
.
Referring
to
Fig
,
22
s
disassemble
the
contact
support
(
4
)
and
arc
chute
mounting
bracket
(
2
)
by
removing
two
bolts
"
(
3
)
.
7
«
Reassemble
in
the
reverse
order
.
The
arc
chute
mounting
bracket
(
2
)
is
not
symmetrical
and
must
be
assembled
correctly
to
orient
the
chute
properly
on
the
breaker
.
The
longest
projection
of
the
bracket
should
be
toward
the
lower
end
of
the
bushing
.
Front
Bushing
1
,
Open
the
breaker
and
remove
the
box
barrier
and
arc
chutes
as
already
described
.
n
Remove
the
upper
and
lower
horizontal
barriers
(
l
8
and
20
)
Fig
,
7
,
3
,
Remove
the
connection
bar
(
9
)
s
Fig
,
24
*
cup
bearing
(
3
)
*
and
pin
(
11
)
,
4
,
Remove
the
four
bolts
at
the
mounting
flange
of
the
front
bushing
be
-
ing
removed
,
and
lower
the
bushing
,
5
»
When
reassembling
*
first
mount
the
bushing
and
assemble
the
cup
bear
-
ing
(
3
)
>
contact
arm
(
4
)
,
and
replace
pin
(
il
)
„
The
contact
surfaces
at
the
hinge
point
of
the
contact
blade
and
bushing
should
have
a
thin
coating
of
D
50
il
47
grease
,
6
,
Check
all
contact
adjustments
as
outlined
under
ADJUSTMENTS
.
INTERLOCK
SWITCH
i
To
remove
the
interlock
switch
(
3
)
*
Fig
,
10
remove
the
two
mounting
screws
and
disconnect
the
lead
wires
.
Reassemble
in
the
reverse
order
and
check
the
switch
adjustments
as
explained
under
ADJUSTMENTS
,
LATCH
CHECKING
SWITCH
To
remove
the
latch
checking
switch
(
7
)
j
Fig
.
10
(
when
furnished
)
,
re
-
move
the
two
mounting
screws
and
disconnect
the
lead
wires
.
Reassemble
in
the
reverse
order
and
check
the
switch
adjustments
as
explained
under
ADJUSTMENTS
.
MOTOR
-
,
RELAY
AND
LIGHT
SWITCHES
I
The
three
switches
are
mounted
in
tandem
as
shown
in
Fig
.
6
.
1
.
Remove
the
opening
spring
per
instructions
below
.
2
.
Remove
(
2
)
mounting
bolts
(
14
)
from
switch
bracket
(
15
)
»
3
.
'
Remove
the
(
2
)
mounting
screws
of
the
lower
switch
.
4
.
Remove
the
(
2
)
mounting
screws
of
the
center
switch
,
I
25
Courtesy of NationalSwitchgear.com