Siemens 81000 90H35

Maintenance
Page
17
Drive
Lever
Cup
3
3.3
Nut
3.4
Locknut
3.5
4.1
4.1
.
2
4.1
.
6
4.2
4.3
4.4
4.5
4.6
4.7
5.1
5.2
5.3
6
6.1
6.2
Figure
16
.
Installing
the
Replacement
Vacuum
Interrupter
•
Insert
the
gauge
plate
(
supplied
)
between
the
cup
(
3.3
)
and
nut
(
3.4
)
.
•
Adjust
this
nut
to
size
and
lock
it
with
the
locknut
.
•
Remove
the
gauge
plate
.
•
Now
carry
out
a
few
test
operations
.
Main
Coil
Replacement
There
are
two
main
coils
.
To
gain
access
to
the
main
coils
,
first
remove
the
two
side
plates
from
the
low
voltage
section
.
The
main
coil
leads
are
connected
to
the
control
circuit
with
push
-
on
terminals
and
can
be
removed
by
pulling
off
.
The
main
coils
may
be
removed
by
removing
the
two
M
8
hexagon
socket
head
bolts
from
the
underside
of
the
contac
-
tor
.
See
label
on
underside
of
contactor
which
identifies
these
two
bolts
.
To
install
a
new
coil
,
reverse
the
above
disassembly
proce
-
dure
.
Figure
17
.
Main
Coil
Replacement
Courtesy of NationalSwitchgear.com