GE ML-14-0 - REPAIR AND REPLACEMENT PROCEDURES; TRIP COIL AND LATCH REPLACEMENT; CLOSING COIL AND LATCH REPLACEMENT; MOTOR SUPPORT REPLACEMENT

Spring
-
charged
Operating
Mechanism
Type
ML
-
14
-
0
GEK
7153
When
replacing
the
trip
coil
be
sure
to
assemble
the
correct
fiber
spacers
at
the
ends
before
securing
the
support
bracket
(
9
)
.
4
.
4
.
Remove
the
trip
crank
adjust
-
ment
bolt
(
16
)
,
Fig
.
7
.
ting
level
(
12
)
,
Fig
.
11
.
3
.
Remove
the
set
screws
from
the
closing
latch
(
6
)
,
Fig
.
8
A
.
4
.
Move
the
closing
latch shaft
(
5
)
,
Fig
.
8
A
,
to
the
left
(
away
from
the
frame
)
by
tapping
lightly
on
the
inside
end
of
the
shaft
.
Rotate
the
shaft
and
continue
tapping
until
the
shaft
is
free
.
The shaft
will
push
the
outside
needle
bearing
from
its
housing
.
5
.
Reassemble
in
the
reverse
order
putting
the
bearing
into
the
frame
last
.
Use
a
small
piece
of
tubing
or
pipe
when
inserting
the
bearing
to
assure
proper
alignment
of
the
bearing
with
its
hole
.
Place
a
block
between
the
latch
and
the
frame
(
either
side
)
and
drive
the shaft until
the
latch
is
free
of
the
key
.
5
.
Adjust
the
trip
coil
location
to
allow
7
/
32
to
9
/
32
inch
of
trip
coil
plunger
(
3
)
,
before
the
trip
latch
(
7
)
,
starts
to
move
.
Butt
connect
the
wires
and
check
the
operation
of
the
trip
coil
electrically
and
mechani
-
cally
.
5
.
Remove
the
key
and
all
burrs
that
may
be
raised
around
the
key
way
on
the shaft
.
Burrs
will
scar
the
bearing
surfaces
if
they
are
not
removed
.
6
.
i
6
.
i
1
/
.
?
s
7
.
Reassemble the
parts
in
the
reverse
order
.
Be
sure
the
trip
CLOSING
COIL
(
CC
)
latch
spring
(
47
)
,
Fig
.
11
,
is
properly
installed and
the
trip
latch
(
50
)
,
Fig
.
11
,
is
aligned
in
the
center
of
the
trip
latch roller
(
52
)
,
Fig
.
11
.
Check
the
trip
latch
adjustment
as
described
under
ADJUSTMENTS
.
To
remove
the
closing
coil
(
20
)
,
Fig
.
3
,
proceed
as
follows
:
1
.
Block
the
closing
springs
(
11
)
and
(
22
)
,
Fig
.
3
,
as
described
under
INSTALLATION
.
6
.
Check
the
latch
adjustments
as
described
under
ADJUST
-
MENTS
.
2
.
Remove
the
left
-
hand
closing
spring
(
12
)
,
Fig
.
2
,
as
described
in
CLOSING
SPRINGS
.
TRIP
LATCH
ROLLER
BEARING
$
MOTOR
SUPPORT
Remove
the
two
cotter
pins
at
the
ends
of
the
shaft
(
54
)
,
Fig
.
L
3
.
Remove
the
two
mounting
bolts
which
fasten
the
closing
coil
(
20
)
,
Fig
.
3
,
support
bracket
to
the
mechanism
frame
(
2
)
,
Fig
.
9
,
and
remove
the
shims
above and
below
the
closing
coil
.
1
.
To
remove
the
motor
support
(
9
)
,
Fig
.
5
,
first
remove
the
closing
latch
spring
(
17
)
,
Fig
.
9
.
10
.
2
.
Partially
remove
the
shaft
out
the
right
,
side
of
the
frame
(
2
)
,
Fig
.
9
,
until the
trip
latch
roller
(
52
)
,
Fig
.
10
,
is
free
.
i
Remove
the
retaining ring
which
prevents
the
driving
link
(
7
)
Fig
.
6
,
from
falling
off
the
.
manual
charging
stud
(
6
)
,
Fig
.
6
.
3
.
Remove
the
driving
link
(
7
)
,
Fig
,
2
.
I
4
.
Cut
the
closing
coil
wires
at
the
butt
connectors
and
remove
the
closing
coil
.
3
.
Reassemble
in
the
reverse
order
with the
proper
spacing
of
washers
,
Be
sure
the
trip
latch
roller
(
52
)
,
Fig
.
10
,
rotates
freely
.
1
I
6
.
£
5
,
Replace
the
closing
coil
and the
correct
number
of
fiber
spacers
before
fastening
the
support
bracket
to
the
mechanism
frame
.
'
i
4
.
•
Remove
the
motor
leads
from
the
terminal
board
(
12
)
,
Fig
.
8
A
.
Remove
the
six
3
/
8
inch
bolts
(
32
)
,
Fig
.
11
,
from
the
bottom
of
the
frame
(
2
)
,
Fig
,
9
.
Remove
the
four
mounting
bolts
from
the
motor
(
not
shown
)
,
Remove
the
retaining
ring
from
between
the
motor
(
2
)
,
Fig
.
5
,
and
the
motor
support
(
9
)
,
Fig
.
TRIP
COIL
(
TC
)
5
.
Refer
to
Fig
.
7
.
To
replace
the
poten
-
tial
trip
coil
(
11
)
,
proceed
as
follows
:
With
the
breaker
in
the
open
position
,
remove
the
two mount
-
ing
bolts
which
support
the coil
support
bracket
(
9
)
.
6
.
Butt
connect
the
wires
and
check
that
the
closing
coil
plunger
(
15
)
,
Fig
.
9
,
is
not
bind
-
ing
.
Check
the
closing
coil
for
electrical
operation
.
1
.
6
.
.
7
.
CLOSING
LATCH
Remove
the
upper
portion
of
the
support
bracket
(
9
)
,
and
remove
the
shims
(
10
)
and
(
12
)
.
2
.
1
.
Remove
the
cotter
pins
at
both
ends
of
the
closing
latch shaft
(
5
)
,
Fig
.
8
A
.
5
.
Remove
the
motor
(
2
)
,
Fig
.
5
.
Reassemble
all
parts
of
the
motor
support
in
the
reverse
,
8
.
Cut
the
trip
coil
wires
at
the
butt
connectors
and
remove
the
trip
coil
(
11
)
.
3
.
2
.
Remove
the
closing
latch
spring
(
17
)
,
Fig
.
9
,
and the
closing
latch
monitoring
switch
opera
-
\
\
9
.
!
'
•
31
'
i
»
»
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