Allis-Chalmers BWX-6637-5, Instruction Book

Page: 87 / 88

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1201. CASE
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TYPICAL AUXI L I ARY SW ITCH
MAR. 3, 196'7
7 1-2 4�8 '1--40 1
The
aux l l l a ry ·!!wi tch
I s of
tho
rota1-y typa
and
fun.;t i ona by d i rect connect i on
to the b reaker
mechan i sm. The contacts
ere
f
a c t
o
r
y s e t for · � · ·
(
op
e n
when
b reake r
I s
open)
a
n d
1 1b 1 1 ( c l os ed \�hen b reake r I s
open) pos i t i on ,
b u t each
rotor
( 1 204) may be
adj u s t e d i nd i v i d ua l l y
I n
s teps of
3 0
d e g r ees ,
Th f s
adj us tmen t
I s
ma
d e b y remov i n g cov e r ( 1 202)
and l i f t i ng the
en
t i
r
e
r o t or a s s emb l y ou t
of
ca s e
( 1 20 1 ) a f t e r d i s conne c t i n g a rm ( 1 .2 0 5 ) f r om the l i nkage ,
Refer
t o De ta i l
1 1C11•
Cot t e r p i n { 1 208}
a n d b e a r i ng
( 1 206) a re· removed t o
pe rm i t
remova l of ro tors
( 1 204)
f r om s h a f t
( 1 2 0 7 ) ,
To
change
r o t o r s
( 1 2 04) f r om
"a"
t o ' 'b "
pos l t l on ,
the rotor
s hou l d
be r o t a t ed 60 ° i n the c l oc kw i s e d i r ec: t i Qn
a f t e r remova l
tmd
rep l aced
on
the s ha f t l n
th i s new pos i t i on .