GE ML-14-0 - PAWL CLEARANCE CHECKS; LATCHING PAWL TO RATCHET WHEEL CLEARANCE

Spring
-
charged
Operating
Mechanism
Type
ML
-
14
-
0
GF
,
K
7153
Cam
Shaft
Guide
Block
Closing
Latch
Roller
Closing
Latch
Shaft
Closing
Latch
Control
Panel
Shock
Mount
2
.
9
.
Charge
-
discharge
Indicator
10
.
Charging
Motor
Limit
Switch
Striker
11
.
Charging
Motor
Limit
Switches
12
.
Motor
Lead
Terminal
Board
13
.
.
Control
Wiring
14
.
Spring
-
charging
Motor
16
.
Closing
Latch
Wipe
Adjusting
Screw
17
.
Closing
Latch
18
.
Closing
Coil
Plunger
19
.
Trip
Latch
Safety
Rod
20
.
Motor
Limit
Switch
Adjusting
Screw
.
3
.
4
.
5
.
6
.
7
.
Fig
.
8
B
Mechanism
Open
-
Trip
Latch
in
Place
(
Springs
Discharged
)
JjOvj
pin
from
right
side
of
motor
mounting
plate
by
driving
the
pin
through
the
side
plate
.
Loosen
the
motor
mounting
bolts
(
5
)
,
Fig
.
5
,
and
move
the
entire
motor
assembly
to
the
rear
toward
the
breaker
tanks
if
the clearance
is
under
the
mini
-
mum
at
the
latching
and
safety
pawls
,
and
,
to
the
front
away
from
the
breaker
tanks
if
the clearance
is
under
the
mini
-
mum
at
the
driving
pawl
.
Move
the
motor
assembly approximately
twice
the
dimen
-
sional
increase
required
at
the
pawl
.
Move
the
entire
motor
and
motor
-
mount
assem
-
bly
in
1
/
64
inch increments
as
a
small
movement
here
results
in
a
large
move
-
ment
at
the
pawls
.
Be
certain
the
motor
have
a
0.015
to
0.030
inch
clearance
above
the
teeth
of
the
ratchet
wheel
(
73
)
when
the
closing
spring
(
62
)
and
(
79
)
,
Fig
.
II
,
are
completely
charged
,
“
H
”
,
Fig
.
14
.
This
is
checked
with the
closing
springs
completely
closed and
gagged
by
measuring
the
distance between
the
out
-
board
latching
pawl
and the ratchet
tooth
with
the
pawl
raised
as
high
as
possible
.
This
is
adjusted
by
loosening
the
locknut
(
86
)
,
Fig
.
12
,
and
adjusting
the
latching
and
safety
pawls
'
adjustment
screw
(
69
)
,
Fig
.
12
,
as
necessary
.
The
safety
pawl
(
inboard
of
the
latching
pawl
)
will
then
have
up
to
a
0.060
inch clearance
more
than
the
latching
pawl
.
assembly
i
$
‘
moved
straight
forward
or
rearward
and
tighten
the
one
bolt
on
the
right
side
of
the
mounting
frame
first
to
assure
proper
alignment
.
After
tightening
the
remaining
bolts
the
springs
should
be
released
and the
clearance
again
checked
as
described
above
.
Re
drill
and
pin
in
the
same
area
to
prevent
movement
.
LATCHING
PAWL TO
RATCHET
WHEEL
CLEARANCE
Refer
to
Fig
.
12
and
to
“
H
”
,
Fig
.
14
.
The
latching
pawl
(
70
)
,
Fig
.
12
(
which
is
the
outboard
pawl
at
this location
)
must
13
Courtesy of NationalSwitchgear.com