Westinghouse De-ion DB-15 Instructions Manual page 15

3.
Table No. MOUNTING BOLT SIZES
08-15
BOLT
Thread Length
X
Ji:!·q 1JI:!"
Tdp
Jt
Y:!-13 1 H
Center
X
Bottom %-16 1"
Use one lock washer only, under the head of
each of these bolts. Care should be taken to make
sure that bolts longer than called for above are not
-- · - - · · - - - - - - - ---1
OVERCURRENT TRIPPING DEVICE
0
1
600 AMP. 60 CY. 5#164?823
� �
I
AT 3CCO
INJf.
·
1
z 1.->o
0
!
�co
•
I
10
1200
I lJ'eoi
' HIGHER
LONGER
LONG DELAY PICKUP CALIBRATION SCREW
LONG DELAY CALIBRATION SCREW
124
08-25
-
Thread Length
X
Y:!-13 2!.4 H
X
Ji:!-13 1%"
X
%-16 1%"
SCALEPLATE
131
-_
PIN
136
.
.
LONG DELAY PICKUP
CALl BRA TION SPRING
I
•
133
VALVE LEVER--
134
---\-I
. 1 · -)j_j-?
ROD A
:_ y -
INSTA NTANEOUS
. :::_/
CALIBRATION SCREW
I
125
.
•
VALVE LEVER
· /
TOO L B
BO TTOM
MOLD
123
FIG. 6A. Overcurrent Tripping Device-Construction Details
,.
"DB" AIR CIRCUIT B REAKERS
used, otherwise, the .ends of the bolts may jam
against the coil and short circuit some of the turns.
To adjust the trip nut for proper tripping, first
insert valve lever tool "B" or a
in the long delay calibration bracket (left slot) and
raise the valve lever to its maximum position. This
removes all of the time delay and permits the arma­
ture to operate easily.
"A" Fig. 6A in the top slot of the calibration
bracket and push the armature solidly against the
yoke; close the breaker and adjust the trip nut to
,1
I
I:
.
TR I P NUT
101
--
_ _
/
/
" · ,
I
/
I
108
RESET VALVE SPRING
TRUARC RING
117
RIIBBER fliS(
II S RLTAIN[R DISC
116
�
1/is diani ter rod,
Then insert the push rod
\
, ___ L.D. VALVE
GASKET
\
109
LONG DELAY VALVE
--\-- 110
114
'SPRING SE ,\ T
liS
., .
-·
15