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GEK-721
01,
Low
V
oltoge Swifchgeor
ASSEMBLY
OF
EQUIPMENT
(coni.)
14.
Install
the
breaker
hoist. When supplied
with
indoor
equipment,
this is
shipped
completely
assembled
in
a
sep-
arate carton.
To install
it,
remove
the
lifting
plates from
the
front of
the equipment.
Lift
the
hoist
into position
on
top of
the
switchgear so
that
the
end
with
the
single
roller
is toward
the
rear
of
the
equipment.
A
channel
is
provided
on the top
of
the equipment which
serves
as
the
track
for
the
single wheel on
the rear
of
the hoist
assembly.
If
space
is
available at the
end
of
the equipment, the hoist
may
be
assembled
by sliding the
rear
wheel
under
the
top leg
of
the
channel
and then
lifting
the
front
end
of
the hoist
over
the stop
clip
and positioning the
front
wheels
so
that
they
will
straddle the tapered
front track.
If
space
at
the
ends
of
the equipment
is
restricted,
the
angle
which
is
bolted to
the hoist
side frames
immediately
in
front of the
single
rear roller must
be
removed.
The
rear
wheel can then
be
hooked
under
the
channel
and
the front
wheels
can
be
positioned
on the
front track. The retaining
angle
at
the
rear
should
then
be
reassembled.
Stop clips
are provided
at
each
end
of the front track to
prevent
the hoist
from
riding off the
ends
of the
track.
When a
hoist
is
provided
with
outdoor equipment,
it
is
shipped mounted
and
secured
in
place.
The yellow
ship-
ping
supports
at
either
end
of
the
hoist
movable
track must
be removed
as
shown
in Figure
14.
To
free
the hoist dolly,
remove
the
wire
that is
used
to
keep
it
in
place during
shipment.
15.
Before
placing
breakers
in
the equipment,
check
each
breaker compartment
for
bolted
joints
in
the
primary
dis-
connect bars.
Where
such
joints
exist,
check
the
bolts for
tightness, Refer
to
Table
A for
the
proper torque
values.
Also
check
the
contact
areas
on
each
primary
disconnect
bar
or
cluster
of
fingers
for
foreign
matter that may
have
accumulated.
Clean
these areas
if
necessary.
Be
sure that
a
thin film of
D50H47
grease
covers
the
contact
areas
before
putting
a
breaker
in
the
compartment.
Check
to
see
that the
breakers
match
their
respective
compartments.
Each
breaker
is
assigned
a part or
mark
number.
This
number
is
shown
on
the
breaker
sheets of
the
summary, the
front view
drawings, the breaker
name-
plate, ahd on
the identification
card on
the
breaker
ship-
^:-- ^^+^-
Prrrli
Lar Lwrr.
To
locate
the
breaker
in
the
proper compartment,
refer
to
the breaker
location
list
on
the
front
view
drawing.
Find
the proper breaker
by the identification
card on
the
breaker
carton,
or
the
mark
number on the
breaker nameplate.
All
identical
breakers
will
have the
same
mark
number.
BREAKER
INSERTION
Before
installing
or
operating
a
breaker,
refer
to
the
breaker
instruction manual
for
preoperation inspection
and
test. Check
thoroughly
for
any
damaged
or
loose
parts
and
for any
dirt
or
foreign
matter which may
be
in
the breaker.
Be
sure
that a thin film of
D50H47
grease
is
present
on
disconnects
before
installine
the
breaker.
HOISTING
AND
INSERTING
AK
BREAKERS
With
the
inner housing
in
the compartment
in
the CON-
NECTED
position,
proceed as
follows:
1.
Put
the
breaker
in front
of the
unit
in
which
it
is
to
be installed.
Be
sure
it
is
tripped.
2.
Insert handle
on jackscrew
shaft
located on
left
hand
side
of
compartment.
3.
Rotate handle
counter-clockwise
until
jackscrew
is
stopped.
(Indicator
should read
DISC).
Inner
house
is
now
in
the DISCONNECTED
position.
4. Remove
handle and
open
compartment
door.
5. Rotate the two track lock links and
pull
the right
track
to
the
limit of its
travel.
See
Figure
16A.
6.
Pay out
enough
hoist
cable
to
place
the hooks
in
the
slots on the breaker
side frames.
See
Figure
168.
CAUTION:
DO NOT UNWIND CABLE
COM-
PLETELY FROM DRUM.
OPERATING
CRANK
MUST TURN
CLOCKWISE
TO
HOIST
THE
BREAKER, COUNTER.CLOCKWISE
TO
LOWER IT.
7. Place
the
cable eye
just
under the
ball
nearest
the
hoist
(fourth ball from
the hooks) and
take
the slack out
of the
cable
with
the hoist.
See
Fieure
16C.
WARNING:
DO NOT
STATTD
UNDER BREAKER
DU
RI
N
G TlOlSTlNG
OPE
RATION.
8. Raise
the
breaker
until
the
breaker
mounting pins
are
approximately
one
inch
above
the tracks.
See
Figure l6D.
9.
Pull
the remaining
track out to
the
limit of its
travel
and lower
breaker so
the breaker mounting pins drop into
the slots
in
the
track.
Remove
the
liftins
device.
See
Fie-
ures
16E
and
F.
10.
Push
the
breaker
in
against
the track
stops.
Rotate
the two
track
lock
links to
lock the
breaker
in
place.
Close
the
compartment door.
See
Figure
16G.
11.
Insert
handle on jackscrew
shaft
and
rotate
clockwise
to
move breaker
into the
compartment.
Breaker is
in
CON-
NECTED position
when jackscrew
can
no
longer
be
ro-
tated. (Indicator
should read CONN).
'16
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