;.··
INSTRUCTIONS
fOR
THE INSTALLATION
AND
OPERATION
OF
. ALLIS-CHALMERS
TYPE
11LA11
LOW VOLTAGE AIR
CIRCUIT
BREAK�RS
AND AUXILIARY
I
PHENT
.
INSTALLATI ON
AND
INSPECTION
A.
INTRODUCTION
The type
11LA11
al
r
�I
r
c
ui
t
breakers
may
be
f
ur
n
i
s
h
e
d for
m
o
u
n
ti
n
g
in
any
one
of
three ways.
�
he
y
may be
u
s
ed
In
me
t
•
l enclosed switch
gear
of
the drawout
type.
In
individual enclosures
(
p
u
l
l
ou
t
type
)
•
or for
stutlonilry
m
ou
n
t
i
ng
In
a
c
u
s
t
ome
r
'
s
own
e
n
c
losi
n
g
c�se
o
r
switchboard.
All
111..A11
bt"eDkers are
c
omp
l
e
t
el
y
assembled.
tested, and
c
a
l
i
b
r
a
t
ed at t
h
e
hctory
in
a vcqical
position and
m
u
s
t
be
so
I
n
st
a
lle
d
to
Qperete
p
r
o
pe
r
l
y
.
Customer's
prima•·y
connections
sho�ld
be
a
d
e
q
u
at
e
l
y
braced a
g
a
i
ns
t
the
effects
of
s
h
o
rt
cir�uit currents to pre�ent
ov
e
r
st
re
s
si
n
g
the
b
r
e
a
k�
r
terminals.
B.
W/�RRANTY
Allis-Chalmers
11LA11
air
c
i
rcu
l
t
b
r
e
a
k
e
r
s
are warranted to be
free-of
d
ef
e
c
t
s
in
material
and
w
or
km
a
n
s
h
i
p
for
a
pe,riod
of
one year after
�ellvery to the
original p
u
r
c
h
a
se
r
.
This warranty
is
l
l
tn
i
t
e
d to the furnish'
of
any part which
to our satisfaction
has
been
proven
d
e
f
e
ct
iv
e
.
Allis
Chalmers will
not
in
any case
assurr.e
responsibility for
a
ll
i
e
d equipment
of any
kind.
C. RECEIVING
AND INSPECTION
FOR
DAHA3E I
mm
e
d
i
a
t
el
y
upon receipt of
this
�q
u
ip
m
e
nt
,
carefully remove
all
p
a
c
k
i
n
g
traces
a
nd
e�amfne parts,
checking them
against
the PiCking
list
and
noting
a
n
y
damages
incurred In
t
r
an
s
i
t
.
If
such
is disclosed,
a
damage
cl•im
should be
filed
at
one� with
the transportation
cowpany �nd
Allis•Chalmers
notified.
'
O.
CAUTIONS TO
BE
OBSERVED
IN
THE INSTALLATION
AND
OPE
RAT�
ON OF
11LA11
e.REAKERS
1.
Read
lnstrcction Book
before
I
n
s
t
a
lling
or
m
a
k
i
n
g any changes
or
adjus
t
m
ent
s
on
the
brea�er.
z. As
the
clo$lng
s
p
r
i
n
g
s
on
stored-energy b
r
e
a
k
er
s may be
charged I
n
either the breaker
open
or closed position,
�xtreme
care
s
h
o
u
l
d
be
ttken
to
discharge
the
s
p
r
i
n
g
s
before
wo
rk
i
n
�
on the
b
r
e
ak
e
r
.
3.
W
h
e
n
closing
manually-operated breakers,
alw�ys grasp
closing handle
flrmiy
unti
1
it is
r
e
t
u
r
n
e
d
to the
normal
vertical
position.
4�
Check
current
ratings a
n
d serial numbers
a
g
a
i
n
st
single line diagram
to
assure
that br
ea
k
er
s
are
p
r
o
p
e
r
l
y
located �n
switchgear
at
•inH4Jllatlon.
5.
theck the
a
l
ignme
n
t
of
the secondary disconnect f
i
n
g
er
s
to
ensure
ag�lnst misalignment
due to
possible
d
i
s
t
o
r
ti
o
n
of fingers during
�
h
l
p
m
en
t
a
n
d
h
a
g
d
l
i
n
g
.
6.
Once
the
breoker
Is
e
ne
r
giz
e
d
.
It
should not;be
t
o
u
c
h
ed
,
except for
operating. since
most
of
t
h
e
compone.nt
parts'
are
aHa
e
n
e
r
g
i
z
e
d
.
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