Allis-Chalmers LA-1600, Instruction Book

Page: 61 / 100

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I NSTALLAT I ON The "LA" a i r c i rc u i t b reake r I s c
om
p
l
e
t
e
l y adj us ted ,
t
e
s
te
d ,
and I ns pec ted a t
the fac t o ry before s h i pment , but ca refu l check
thou l d be
made
to
be
cer t a i n t ha t sh i pmen t
o r s
to r
a
ge has not res u l ted
i n damage o r
c
h
a
n g
e of
adj us tmen t . C i rc u i t b reake r � shou l d be
I n
s
t
a
l l ed
I n a c l ean . d ry ,
w
e
l l
•
v
e
n t
l l a ted p l ace I n wh i ch
t he
a
tmos ph
e
r
e
I s f ree
f rom des t ruct i ve
ac i d o
r a l ka l i f umes . S t a t i onary- type b reake rs
s
h o
u
l
d
be moun ted h i gh e
no u
g
h
to p reven t I nj u ry t o pe rsonne l
e
i the r
f
r
om
c i
r
cu i t
I n
t
er
r
up
t i
o n or f rom
m o
v
i n g pa r t s dur i ng a u t oma t i c open i ng of the b re a
k
e r
.
A l l ow s u
f f
i
c
i e
n t
s pace
to perm i t access f o r c l ea n i ng and I nspec t i on a nd
adequa t e c l ea rance to i ns u l at i ng
ba r r i e r
a bove
t he
b
r
eake
r
to p reven t
damage
f rom a r
c
i
n g dur i ng i n te r r up t i on . Before i ns �a l l l ng , make cer ta i n
tha t t he
b reake r con tac t s are i n the open pos i t i on . !
I
•
2 .
After t he
b r e
a ke
r
I s i ns ta l l ed I n pos i t i on , c l os e I t manua l l y by the
ma
i
n
t
e
n
an
ce
c l os i ng me t hod (See Sec t i on I l l ) to
check
p roper
f unc t i on i ng of the mechan i sm and con tac t s . (CAUT I ON : MAKE SURE
C I RCU I T
I S NOT
ENERG I ZED) . Dur i ng the c l os i ng opera t i on , obs e rve
that the con tacts move f ree l y w i thout I n t erfe rence or r ubb i ng between
movab l e a rc i ng con tacts and pa r t s of t he a rc chutes . Then
r e f e r
t o
Sec t i on I I o f t h e I ns t ruc t i on Book f o r a de ta i l ed des c r i p t i on o f the
c
i
r
c
u
i t breake r ope ra t i ng character i s t i cs befor� put t i ng the b reaker
I n
terv l ce .
·
T r i p un i ts a nd
accessory dev i ces
shou l d rece i ve a thorough check
pr i or to p l ac i ng t he
b reake r i
n s e rv i ce to
be cer ta i n tha t
adj us tments
a re
prope r and pa r t s
a
r
e
not damaged .
3 .
Cub l c l e�oun t ed
b reake r s
of the d rawou t t
y
p
e
are equ i pped
w i th
a d raw•
ou t i n ter l oc k to p revent movemen t of a
c l os ed b r�a ke r i
n t
o
or ou t of
t he connected pos i t i on . S ee Sect i on I I of the l �s t ruc t i on Book for a
des c r i pt i on of the I n te r l oc k . I ts ope ra t i on s hou l d b e checked
before
the b
reake
r i s
ener g i zed .
1
4.
Upon comp l e t i on of the i ns ta l l at i on I ns pec t i on ,
�he b r
eak
e r
i s ready
to
be
e
n e
r
g i
z
e d a f t e r the con t ro l w i r i ng , i f
a
ny
,
I s
checked and the
I ns u l a t i on
tes te d .
f,
STORAG E
When brea
k
e r
s a re
not to b e put
I n to I mmed i a te us e ,
t hey shou l d
b e wrapped or covered
w i th a
non -
a
b
s
o
rb
a
n t ma t e r i a l prov i de p ro t ec t i on
f rom
p l as te r ,
conc rete dus t o r o t he r
f
o
re
i
g
n
ma t te r , B reake r s shou l d not
be
expos ed
to t he act i on of cor ros i ve gases o r m
o
i s t u r e
�
I n a reQs of h i gh
humi d i ty
o
r
tempe ra t u re f l uc t ua t i ons , space
he
a t
e
r
s
t he
equ i va l en t s hou l d
be prov i ded . ,
G, MA I NTENANCE Occa s i ona l c hec k i ng and c l ean i ng of t he breake r w f l l promo t e
l on g
a
n
d
t roub l e-f ree serv i ce . A
per i od i c i ns p ec t i on
and
s e rv i c i ng a t l eas t
every
s i x
months
s hou l d
be i nc l uded i n the b reake r ma i ntenance rou t i ne .
I f
the c i rc u i t b reaker I s not ope rated dur i ng ex tended per i ods , the
b reaker
shou l d not rema i n i n
e i the r
t
h
e
c l osed or open pos i t i on any l onger t han
s i x
rnon ths . Ma i n tenance open i ng - and c l os i ng ope ra t i ons
s hou l d
be
made to
ens u re
f reedom of movement of a l l pa r t s .
i
(
H . RE NEWA L PARTS When order i ng renewa l pa r t s , specil fy the comp l e t e
n
am e -
(
p l a te da ta i nc l ud i ng
b reake r
s er i a l number .
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