GE Magne-Blast AM-13.8-1000-3H - Auxiliary Switch Check; Driving Pawl Adjustment; Latch Checking Switch Adjustment

GHX
~
88766
^
Auxiliary
Switch
The
auxiliary
switch
Fig
*
11
is
mounted
on
the
left
side
of
the
operating
mechanism
.
The
shaft
of
the
position
indicator
(
8
)
operates
tllg
dtlM
-
liary
switch
shaft
which
opens
and
closes
the
!
ia
,
!
and
!
'
b
”
con
-
tacts
.
The
ffah
contacts
are
open
when
the
breaker
is
open
and
the
iab
!
'
contacts
are
open
when
the
breaker
is
closed
„
The
t
8
at
!
contacts
should
0
To
fee
when
the
breaker
primary
contact
gap
is
a
minimum
,
of
1
!
:
.
The
"
b
,
!
contacts
need
only
to
be
checked
to
see
that
they
are
open
when
the
breaker
is
closed
.
No
adjustment
is
provided
and
a
visual
inspection
is
usually
all
that
is
required
.
%
Driving
Pawl
Adjustment
The
driving
pawl
(
5
)
Fig
.
4
must
advance
the
ratchet
wheel
(
3
)
Fig
.
3
sufficiently
on
each
stroke
to
allow
the
latching
pawls
(
l
)
to
fall
into
the
ratchet
teeth
.
This
should
be
checked
with
the
maximum
closing
spring
load
against
the
driving
members
.
With
the
mechanism
unblocked
,
hand
charge
the
closing
springs
with
the
manual
charging
wrench
until
they
are
slightly
more
than
half
charged
.
Slowly
rotate
the
'
charging
wrench
until
the
driving
pawl
(
5
)
Fig
.
4
has
traveled
through
its
return
stroke
and
check
the
maximum
clearance
between
the
pawl
and
the
ratchet
tooth
.
Rotate
the
charging
wrench
until
the
driving
pawl
has
advanced
the
ratchet
tooth
to
its
maximum
travel
.
Now
check
the
clearance
between
the
ratchet
tooth
and
the
latching
pawl
(
1
)
Fig
.
3
.
The
clearance
should
^
be
approximately
equal
for
both
the
driving
and
latching
pawls
and
not
less
than
*
015
,
?
in
either
case
.
If
adjustment
is
required
for
either
pawl
the
springs
must
first
he
fully
charged
and
blocked
.
Loosen
seven
motor
support
bolts
(
l
)
Fig
.
15
and
move
entire
motor
assembly
to
the
rear
if
the
clearance
is
under
the
minimum
,
at
the
latching
pawls
,
and
to
the
front
if
the
clearance
is
un
-
der
the
minimum
,
at
the
driving
pawl
.
Move
the
motor
assembly
approxi
-
mately
twice
the
dimensional
Increase
required
at
the
pawl
.
Be
certain
the
motor
assembly
is
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
foe
released
and
the
clearance
again
checked
as
described
above
.
AUXILIARY
DEVICES
I
&
W
Latch
Checking
Switch
Refer
to
Fig
.
12
,
Rotate
the
trip
latch
(
4
)
clockwise
(
looking
at
the
left
side
of
the
mechanism
)
by
pressing
the
manual
trip
lever
to
open
the
latch
checking
switch
operating
am
(
3
)
.
Allow
the
trip
latch
to
reset
slowly
and
determine
the
point
at
which
the
contacts
make
by
using
a
circuit
continuity
tester
,
such
as
a
light
indicator
or
bell
set
9
The
contacts
of
the
latch
checking
switch
should
just
make
when
the
gap
be
-
tween
the
trip
latch
(
4
)
and
the
stop
pin
(
5
)
located
on
the
crank
(
?
)
is
l
/
l
6
”
.
There
should
be
a
minimum
of
l
/
b
4
S
!
between
the
operating
arm
|
(
3
)
Fig
.
12
and
the
switch
support
(
l
)
.
To
obtain
adjustment
of
the
latch
checking
switch
(
2
)
bend
the
latch
checking
switch
operating
arm
(
3
)
o
9
Courtesy of NationalSwitchgear.com