Siemens GMI Series

Overhaul
17
.
Concluding
Operations
17.1
Torque
vacuum
tube
stationary
and
movable
contact
fasteners
to
values
indicated
in
Table
7
.
17.2
Using
procedure
shown
in
Figure
51
and
torque
limits
established
in
Table
7
secure
tube
clamp
hardware
.
PRIMARY
EXTENSION
TUBE
CONTACT
-
STATIONARY
|
FLEXIBLE
i
SHUNT
-
\
CLAMP
\
^
Note
:
Check
to
be
certain
the
tube
clamp
has
been
raised
into
firm
bearing
against
the
movable
stem
step
or
retaining
ring
before
securing
the
clamp
.
%
+
+
;
i
i
i
i
\
TRUNNION
A
SELL
CFWIK
17.3
Replace
all
barriers
.
17.4
Perform
High
Potential
Test
across
open
vacuum
tube
and
from
each
primary
extension
to
ground
(
See
Table
3
on
page
25
)
.
Table
6
:
Recommended
Tools
PUSH
ROD
*
ff
:
©
*
@
Open
End
or
Box
End
Wrenches
7
/
16
,
1
/
2
,
9
/
16
,
5
/
8
,
11
/
16
Socket
Wrenches
:
(
1
/
2
’
drive
preferred
)
7
/
16
,
1
/
2
,
9
/
16
,
5
/
8
,
11
/
16
19
mm
,
24
mm
Ratchet
2
Extensions
(
6
’
maximum
)
Torque
Wrench
(
0
-
150
ft
-
lbs
.
)
Hex
Socket
Keys
:
5
/
16
(
0.156
)
socket
type
preferred
Miscellaneous
:
Pliers
Hot
Air
Gun
"
Loctite
"
Threadlocker
262
"
Loctite
"
Primer
T
Allen
Wrenches
-
8
mm
,
10
mm
Figure
46
:
GMI
Breaker
Side
Elevation
(
Typical
)
.
STAB
SUPPORT
TLF
^
>
TUBE
T
~
\
CONTACT
STATIONARY
PRIMARY
EXTENSION
TUBE
CLAMP
INSULATING
CENTERING
/
RING
SPACER
SHIM
WASHERS
TRUNNION
Figure
47
:
VS
10006
and
VS
10028
1200
Amp
.
Table
7
:
Critical
Fasteners
and
Torque
Limits
Tube
Clamp
Movable
Contact
Stationary
Contact
Tube
Family
Size
Size
Size
Torque
Torque
Torque
2000
&
3000
All
Current
Ratings
1200
VS
12015
2
-
3
/
8
-
16
26
-
36
ft
-
lbs
.
60
-
65
ft
-
lbs
.
15
-
20
ft
-
lbs
.
1
-
3
/
8
-
16
M
10
x
1.5
M
12
x
1.75
VS
25002
1
-
3
/
8
-
16
2
-
3
/
8
-
16
26
-
36
ft
-
lbs
.
M
12
x
1.75
15
-
20
ft
-
lbs
.
60
-
65
ft
-
lbs
.
M
10
x
1.5
VS
10006
M
16
x
2
30
-
35
ft
-
lbs
.
2
-
3
/
8
-
16
26
-
36
ft
-
lbs
.
60
-
65
ft
-
lbs
.
M
12
x
1
75
1
-
3
/
8
-
16
60
-
65
ft
-
lbs
.
2
-
3
/
8
-
16
26
-
36
ft
-
lbs
.
M
16
x
2
30
-
35
ft
-
lbs
.
1
-
3
/
8
-
16
VS
10028
M
12
x
1.75
34
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