SECTION
573-127-703
3.05
Code Reading Contacts
Note
1:
Remove code reading contact
assembly from transmitter distributor
unit before making initial adjustments.
Note
2:
When using the contact spring
bender, start with the contact pile -up
farthest from the handle of the tool and
work toward the handle so as not to disturb
adjustments already made.
(A) NORMALLY CLOSED CONTACTS
BACKSTOP
Requirement
Lower contact leaves for all levels
should be parallel with the mounting
plate and in line with one another.
To Adjust
Bend backstop to meet the requirement.
(B) NORMALLY CLOSED CONTACTS
SPRING
(1)
Requirement
With swinger held away
Min
2
oz---Max
6
oz
to move lower contact leaf from
backstop.
To Adjust
Bend lower leaf.
(2)
Requirement
Min
30
grams---Max
40
grams
to open normally closed contacts.
To Adjust
Bend swinger.
Note
3: If
it is necessary to bend
backstop to obtain required tension,
reposition backstop to meet
NORMALLY CLOSED CONTACTS
- BACKSTOP requirement.
UPPER CONTACT
LEAF
MOUNTING PLATE
BACKSTOP
SWINGER
I
NORMALLY
CLOSED
CONTACTS
LOWER
CONTACT
LEAF
HELD
AWAY
LOWER
CONTACT
LEAF
NORMALLY
CLOSED
CONTACTS
(C) NORMALLY OPEN CONTACTS- GAP
Requirement
0.010
inch---Max
0.015
inch
gap between normally open contacts.
To Adjust
Bend associated backstop to meet
requirement.
(D) NORMALLY OPEN CONTACTS -
SPRING
Requirement
Min
30
grams---Max
40
grams
to move normally open contact away
from backstop.
To Adjust
Bend upper contact leaf.
(Front Views)
Note
4: If
it is necessary to bend back
obtain required tension, re
position backstop to meet NORMALLY
OPEN CONTACTS- GAP requirement.
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