Lit - GE AK-1-15 Instructions Manual

GEH,;,1807A1rClrcuit
Bre~ers
Type
AK-l..o15 and AK-1-25
Turning the operating handle (5) in the clock-
wise directiol1, 90 0 , causes a roller attached to the
operating shaft to engage cam (6) thereby moving
the caxn support (7) toward link (4). See Fig. U.
This motion straightens the operating linkage,
thereby moving the main shaft
(17)
and movable
contacts to the closed position. Prop (22), engaging
pin
(19),
and latch (13) l'esting on roller
(8)
will
hold the contacts in the closed position. Rotating
the tripslm.ft (14) in the counter-clockwise dire.ction
will release the roller
(8)
which cannes the toggle
linkage to collapse thereby allowipg the opening
springs (16) to push the main shaft and movable
contacts forward to the open position. Trip latch
(13) is automatically reset during the opening
operation, providing none (,If the "trip devices are
actua~
,
Adjustments
In
addition
to
the adjustments shown formecha-
nisms furnished without an operating handle, ad-
justmentscrew(26) must
be
set for proper ope,ra-
tion. This adjustment is satisfactory
if
th~ screw
is Bet in such a position that the following two
conditions are met:
1. In closing, there mUst be enough overtravel
of the mechanism to, easily allow prop (22)
to move on pin (19). Fig. 11.
2.
When the breaker is open, roller
(8)
must
clearly be free of contact with latch (13).
6
2
o
~~-._-
--r--,9
~~=;:;:;:;;;;;I_-,8
-
=
7
~
...
2
IN
-
0
-
m
~
-
u ..
5
4
t]
~,
1. Clodn"
LiilIt
2.
e-
lZetu.m
~ri~1
3. Bold In Poat
4. JtlCutmeon
5. Cr_
6. .llel'
7. Screw
8. COil
9. Torlp Shaft
Adj. Screw
m.
Buffer Paddle
Jl. Trip Shaft
Ret. ~rip.g
12. Trip Shaft
13. Stop tfUt
14. Anulture
15. Latch
16. Mech.
Frlllllle
1'1.
Opening Spring
18.
lain
Shaft
19. TOlele LiD&:
2).
Pia
21. Reset Spring
22. Prop Pin
23. Prop
24.Lodwuta
25. Switch
26. Sctn
Fig. 10 Operating Meehan iu Without Operating Handle
14