GE AK-1-15 Maintenance Instructions

Low
Voltage
Power
Circuit
Breakers
GEK
-
7303
1
.
Screw
2
.
Stationary
Arcing
Contact
3
.
Pin
(
Stationary
Arcing
Contact
)
4
.
Movable
Arcing
Contact
5
.
Spring
(
Leaf
Contact
)
5
A
.
Stationary
Intermediate
Contact
6
.
Movable
Main
Contact
7
.
Shouldered
Pin
8
.
Pin
(
Arcing
Contact
Links
)
9
.
Insulating
Link
10
.
Pin
(
Insulating
Link
)
IOA
.
Adjusting
Plate
IOB
.
Buffer
Spacers
11
.
Pin
(
Side
Link
)
12
.
Link
13
.
Clevis
14
.
Clevis
Pin
15
.
Lower
Stud
16
.
Pole
Unit
Base
17
.
Spring
(
Main
Movable
Contact
)
18
.
Pin
(
Main
Movable
Contact
)
19
.
Pin
(
Movable
Arcing
Contact
)
20
.
Side
Link
20
A
.
Contact
Stop
21
.
Spring
(
Stationary
Main
Contact
)
22
.
Spring
(
Stationary
Arcing
Contact
)
23
.
Upper
Stud
24
.
Leaf
Spring
(
Stationary
Main
Contacts
)
25
.
Pin
(
Stationary
Main
Contact
)
26
.
Stationary
Main
Contact
27
.
Screw
28
.
Stop
28
27
26
25
24
22
21
20
A
20
19
18
17
16
15
12
13
14
Fig
.
6
(
0107
D
7517
)
Pole
unit
assembly
-
AK
-
50
at
least
3
/
16
in
.
,
the
main
contacts
gap
at
least
1
/
4
in
.
spacers
on
the
cross
-
bar
.
The
locking
nuts
on
the
buffer bolts
should
be locked
in
such
a
posi
-
tion
that
the
buffer
bolt
may
be
rotated
freely
.
This
check
can
best
be
made
NOTE
:
by
means
of
the maintenance
handle
,
with
the
safety
pin
restraining
the
closing springs
.
REPLACEMENT
OF CONTACTS
(
Fig
.
6
)
Stationary
Arcing
Contacts
(
2
,
Fig
.
6
)
0
,
Fig
.
7
)
1
.
Remove
the
upper
plate
by removing
two
screws
(
1
)
.
On
the
AK
-
75
and
-
100
remove
the
top
contact
block
(
25
,
Fig
.
7
)
and
remove
insulation
(
3
,
Fig
.
7
)
.
2
.
Loosen
screws
holding
spring
.
(
5
)
3
.
Remove
pin
(
3
)
freeing
the
stationary
con
-
tacts
and
springs
(
22
)
.
4
.
Install
new
springs
and
stationary
arcing
contacts
in
reverse
order
.
If
the
gap
is under
the
required
minimum
,
it
is
usually
possible
to
form
the
arcing
contacts
and
obtain
the
required
dimensions
.
To
form
the
con
-
tacts
,
place
a
piece
of
conduit
approximately
two
feet
long
,
over
the
contact
and
form
the
contact
either
forward
or
backward
.
If
the
proper
dimen
-
sions
are
still
not
obtained
the
movable
arc
-
ing
contacts
should
be
replaced
.
If
it
has been
necessary
to
make
any
adjust
-
ments
while
obtaining
proper
contact
sequence
,
the
contact
wipe
and
pressure
must
be
checked
,
and
adjusted
,
if
necessary
.
CONTACT
GAP
(
Fig
.
6
)
When
the
breaker
is
open
,
the
gap
between
the
movable
and
stationary
contacts
should be
between
2
5
/
8
in
.
and
2
3
/
4
in
.
The
gap
may
be
adjusted
by
varying
the
number
of
buffer
5
.
Adjust
contact
wipe
and
pressure
.
(
See
ADJUSTING
CONTACT
WIPE
AND
PRESSURE
)
.
11
Courtesy of NationalSwitchgear.com

GE AK-1-15 Specifications

General

Brand	GE
Model	AK-1-15
Category	Circuit breakers
Language	English