S&C AS-1A Guide

S&C Switch Operators - Type AS-1A
INSTRUCTIONS
For Installation
ITABLE OF CONTENTS
Section Page Number
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... 1
SAFETY INFORMATION
Understanding Safety-Alert Messages ..................... 4
Following Safety
Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Replacement Instruct10ns and Labels. . . . . . . . . . . . . . . . . . . . . 4
INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
MANUAL OPERATION . . . . . . . . .
....................... 8
ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
IINTRODUCTION
Qualified Persons
A WARNING
The equipment covered by this publication must be
installed, operated, and maintained by qualified
persons who are knowledgeable in the installation,
operation, and maintenance of overhead electric
power distribution equipment along with the
associated hazards. A qualified person is one who is
trained and competent in:
•
The skills and techniques necessary to distinguish
exposed live parts from non-live parts of electrical
equipment.
•
The skills and techniques necessary to determine
the proper approach distances corresponding to the
voltages to which the qualified person will be
exposed.
• The proper use of the special precautionary tech-
niques, personal protective equipment, insulating
and shielding materials, and insulated tools for
working on or near exposed energized parts of elec-
trical equipment.
These instructions are intended only for such quali-
fied persons. They are not intended to be a substitute
for adequate training and experience in safety proce-
dures for this type of equipment.
Supersedes Instruction Sheet 769-500 dated 9-7-93 ©1996
II S&C ELECTRIC COMPANY• Chicago
S&C ELECTRIC CANADA
LTD.• Toronto
I
Section Page Number
INSPECTION SCHEDL'LE AND PROCEDURES ............. 18
CHECKING SWITCH OPERATOR AND
ALDlJTI-RFPTER® SWITCH POSITIONS
................. 20
APPENDIX
Amended Travel-Limit Adjustment Procedure for
Switch Operators Furnished with Source-Transfer
Control Compatibility
................................. 20
I
The S&C Switch Operator-Type AS-IA is a high-speed
operator,
with an operating time not exceeding .75 sec-
ond. It is expressly designed for power operation of S&C
Alduti-Rupter Switches-Outdoor Distribution and S&C
Alduti-Rupter Switches with Power Fuses-Outdoor Dis-
tribution, having rotating
type operating mechanisms.
The high operating speed of the S&C Switch Opera-
tor-Type AS-IA provides sufficient moving-contact
velocity
in the Alduti-Rupter Switch interrupters to ensure
full interrupting capability and long operating life. The
operator's high operating speed also provides adequate
closing velocity for 25/34.5-kv and 34.5-kv Three-Pole
Side-Break
Integer Style and Three-Pole Vertical-Break
Integer Style switches such that the Side-Break Integer
Style switches have a one-tjme duty-cycle fault-closing
rating
of 15,000 amperes rms asymmetrical, and the Verti-
cal-Break Integer Style switches have one-time duty-cycle
fault-closing ratings
of 20,000 or 30,000 amperes rms
asymmetrical for switches rated 600 amperes or 1200
amperes, respectively.
For power operation of S&C Alduti-Rupter
Switches-Outdoor Distribution and S&C Alduti-Rupter
Switches with Power Fuses-Outdoor Distribution,
having
reciprocating type operating mechanisms, the S&C
Switch Operator-'fype AS-10 is offered.
INSTRUCTION SHEET 769•500
Page 1 of 23
April 22, 1996

S&C Switch Operators - Type AS-1 A
IINTRODUCTION -Continued
For power operation of S&C Circuit-Switchers, S&C
Switch Operators-Types CS-IA and CS-10 are available.
For power operation of S&C Line-Ruptersr'1, the S&C
Switch Operator-Type LS-2 is available.
For switches of other manufacture, the S&C S~itch
Operator-Type LS-1 is available. The LS-1 is a low-speed
operator, with an operating time of 4 to 7 seconds. It is
designed for power operation of outdoor high-voltage dis-
connects and interrupter switches for which this low
operating speed is appropriate.
S&C Switch Operators-Type AS-lA include the
following features as standard:
• Built-in internal decoupling mechanism, operable by
integral external selector handle, ~ith padlocking pro-
visions and automatic mechanical locking of output
shaft. Laminated safety-plate window permits "visible
air-gap" verification
of complete disengagement of
output shaft.
•
Open-close pushbuttons, externally operable, with pad-
lockable cover.
• Built-in
nonremovable, foldaway manual operating
handle.
•
Mechanical position indicators for both switch
operator and Alduti-Rupter Switch "open" and
"closed" positions.
• Non-reset electric operation counter.
•
Laminated safety-plate window for inspection of built-
SWITCH OPERATORS- Type AS-1 A
Application
Motor and Maximum
Rating of Operating Time,
High-Voltage High-Voltage Control Voltage SecondsG)
Device Device
12 v de
75 ♦
S&C
48vdc 75 ♦
Alduti-Rupter 7 2 thru 46 kv 125 v de
.75 ♦
Switch
115v60hz 75 ♦
230v 60 hz
75 ♦
(i) Based on nnmmum battery and extnnal eontrol wJTe size rf'quirP-
ments '>pPc1fied m S&C Data BullPtm 769-60, oppratmg tmw will hP Jpi,s I1
largPr-than-mm1mum battPry 'l!ZP and/or extPmal eontrol wire s1zp 1s
utilized.
♦ Apph<'ablP to Aldut1-Rupter Sw1tehPs with operatmg-mrc hamsm rota-
non of 90 dPgret>s, opPratmg time will bP grc>atPr 1f switch ha.~ muPasPcl
operatmg-mPehamsm rotation. 'lyp1cal
nmning spPPd of sw1teh operator
output ~haft· 26 revolut10ns per mmute.
769-500 INSTRUCTION SHEET
Page 2 of 23
April 22, 1996
in internal decoupling mechanism, mechanical position
indicators, and operation counter (and position-indi-
cating lamps, if furnished as accessmies ).
•
Foolproof recoupling. Impossible \o\-'lth position-index-
ing drums to couple the switch operator and the
Alduti-Rupter Switch "unsynchronized."
• Fingertip precision adjustment of output-shaft rotation
using self-locking spring-biased cams.
•
Eight-pole auxihary switch, coupled to motor, with
fingertip precision adjustment of individual contacts
using self-locking spring-biased cams.
• Antifriction bearings throughout; tapered roller bear-
ings for all high-torque gear-train shafts.
•
Two-pole pull-out fuseholders for space heater and
(except for 12-volt de models) motor circuit. (For
12-volt de models, a two-pole disconnect switch is
used in series with a motor-circuit fuse.)
• Weatherproof, dustproof enclosure, equipped with
120/240-volt ac space heater, factory-cmmected for
240-volt ac operation. Can readily be field reconnected
for 120-volt ac operation.
• Tan1per-resistant design-welded enclosure; baffled
louvers;
gasketed. flanged door openings; cam-action
door latch; provisions for padlocking.
•
Foul-weather accessibility to interior of enclosure.
Access is by door rather than by removal of entire
enclosure.
Minimum Locked- Schematic
Rotor Torque at Accelerating Catalog Wiring
Current, Diagram
Rated Control Amperes Number Drawing
Voltage, Inch-Lbs. Number
18 500 -
38854R4 ■ CDR-3127R1
21 500 80 38847R4-A
21 500 30 38847R4-B CDR-3113R1
18 000 46 38847R4-D CDR-3128R1A
18000
23 38847R4-E
I
■ Indudes 12-volt ck battery and ecmc;tant-hurdPn battery eharger for
c·onnect10n
to an &11.:C' ;}O-Volt-AmpPrP PotPntI,11 f)pv1cc or othPr 120-volt
G0-lwr1z soUH'l'
A CUR-:l205Hl for Catalog :-.Jumbprs ;JS8-!7R,!-D and :l8847R4-E when
funushed with smm·c-transfpr eontrol compat1h11lty ('>uffix ''-lll")
S&C ELECTRIC COMPANY• Chicago lilli
S&C ELECTRIC CANADA LTD.• Toronto gJi

IINTRODUCTION -Continued
S&C Switch Operator Catalog Number 38854R4
includes a 12-volt
de battery and constant-burden battery
charger for connection to an S&C 30-Volt-Ampere Poten-
tial Device or other 120-volt 60-hertz source.
Switch
operator catalog numbers are suffixed with one
or more letters. The first letter following the catalog
number designates the motor and control voltage ( except
for Catalog Number38854R4):
ACCESSORIES
Item
Deletion of Externally Operable Open-Close Pushbuttons
Space HeaterThermostat
Suffix
-A
-B
-D
-E
Voltage
48volts de
125volts
de
115 volts 60 hertz
230 volts
60 hertz
i
Other suffix letters which may be added to the switch
operator catalog number indicate the inclusion of
optional accessories as follows:
Suffix Added to
Switch Operator
Catalog Number
-J
-K
Key Interlock with Switch, locksAldut1-Rupter Switch open and disconnects motor-control circu1tG)
-L
Pos1t1on-lndicating Lamps (one red, one green), mounted 1ns1de the enclosure
-M
Extra Auxiliary Switch (1nd1v1dually adjustable contacts), 4-PST (coupled to motor)G)®
-Q
Source-Transfer Control Compatibility Permits use of switch operator with S&C Micro-AT Source-Transfer Control in Weather-
-U1
proof EnclosureCD®
Duplex Receptacle and Convenience-Light Lampholder with Switch -V
Extra Auxiliary Switch (individually adJustable contacts), 8-PST (coupled to Alduti-Rupter Switch)©
-W
Remote-Control Blocking Switch, prevents remote operation of switch operator when the protective cover for the
-Y
externally mounted open-close pushbuttons Is openG)
Extra Aux1hary Switch (ind1v1dually adJustable contacts),
12-PST (coupled to Aldut1-Rupter Switch)© -2
G) Type AS-lA Switch Operators specified with source-transfer con-
trol compat1b11ity (suffix "-Ul") cannot be furmshed with key inter-
lock with switch (suffix "-L''), extra auxiliary switch coupled to motor
(suffix "-Q"), or remote-control blockmg switch (suffix "-Y"),
® Reqmred for some automatic-transfer and sectional1zmg schemes.
S&C ELECTRIC COMPANY• Chicago
S&C ELECTRIC CANADA
LTD.• Toronto
® Available as an optional accessory only with Type AS-lA Switch
Operator Catalog Numbers 38847R4-D and 38847R4-E, utilizmg 115-volt
60-hertz
or 230-volt 60-hertz motor and control voltage
© The 8-PST extra auxiliary switch (suffix "-W") cannot be furnished if
the 12-PSTvers10n (suffix ''-Z") IS specified, and vice versa
INSTRUCTION SHEET 769-500
Page3 of 23
April 22, 1996

S&C Switch Operators - Type AS-1A
ISAFETY INFORMATION
Understanding Safety-Alert Messages
There are several types of safety-alert messages which
may appear throughout this instruction sheet as well as
on labels and tags attached to the 'fype AS- lA Switch
Operator. Familiarize yourself with these types of mes-
sages and the importance of the various signal words,
as explained below.
A DANGER
"DANGER" identifies the most serious and immediate
hazards which will likely result in serious personal
injury or death if instructions, including recommended
precautions, are not followed.
A WARNING
"WARNING" identifies hazards or unsafe practices
which can result in serious personal injury or death if
instructions, including recommended precautions, are
not followed.
A CAUTION
"CAUTION" identifies hazards or unsafe practices
which ca,n result in minor personal injury or product or
property damage if instructions, including recom-
mended precautions, are not followed.
A NOTICE
"NOTICE" identifies important procedures or require-
ments that, if not followed. can result in product or
property damage if instructions are not followed.
769-500 INSTRUCTION SHEET
Page 4 of 23
April 22, 1996
Following Safety Instructions
A NOTICE
Thoroughly and carefully
read this instruction sheet
before installing your S&C
TypeAS- lA SwitchOpera-
tor.
i
If you do not understand any portion of this instruction
sheet and need assistance, contact your nearest S&C
Sales Office or S&C Authorized Distributor, or call S&C
Headquarters at [phone], Monday through Friday
between 8:30 AM and 5:00 PM Central Standard Time. (In
Canada, call
S&C Electric Canada at [phone].)
Replacement Instructions and Labels
If you need additional copies of this instruction sheet,
contact your nearest S&C Sales Office or S&C Authorized
Distributor,
or call S&C Headquarters.
It is important that any missing, damaged, or faded
labels on the equipment be replaced immediately.
Replacement labels are available by contacting your near-
est S&C Sales Office. S&C Authorized Distributor, S&C
Headquarters, or S&C Electric Canada.
S&C ELECTRIC COMPANY• Chicago II
S&C ELECTRIC CANADA LTD.• Toronto

IINSTALLATION
Step 1
Mount the switch operator as indicated on the erection
drawing. Then
attac h a flexible coupling to the output
shaft of the switch operator. See Figure l. Thr ead the
attachment bolts throu gh the flexible coupling plate and
through the co upling flange on the output shaft . Tighten
the bolts to draw the flexible plate flush against the flang e;
I
this will deform the threads in the flexible plate, resulting
in a bindin
g, nonslip co nnection. Install and tighten the
self-locking nuts. Do not us e lockwashers with the flexible
co upling attachment bolts.
Remove
the clamp bolts and set aside the deta chable
half
of the flexible coupling.
Attachment bolt Vertical operating pipe
\
Flexible coupling
plate
Coupling flange
Self-locking nut
Pushbutton
protective cover
Switch operator
output shaft
Door handle
Figure 1. Exterior view
of switch operator.
S&C ELECTRIC COMPANY• Chicago
S&C ELECTRIC CANADA LTD.• Toronto
..,. i----- Flexible coupling
Alduti-Rupter switch
position indicators
Manual operating
handle
(in storage
position)
Switch operator
nameplate
INSTRUCTION SHEET 769-500
Page 5 of 23
April 22, 1996

S&C Switch Operators - Type AS-1A
IINSTALLATION -Continued
Step 2
Make certain
that the cutting tips of the piercing set
screws do not protrude through (1) the body of th e fle x i-
ble coupling on the switch operator output shaft and (2)
the body
of the universal coupling and thrust bearing at
the upper guide bearing and universal coupling groups ( or
the body of the rigid coupling if an intermediate guide
bearing assembly is used).
Pass the lowest section of vertical operating pipe up
through
the guide bearing and then through the thrust
bearing and insert the pipe section into the universal co u-
pling (or, if an intermediate guide bearing assembly is
used,
pass the vertical-operating-pipe section up through
the guide bearing and
insert the pipe section into the
rigid coupling). Do not tighten the coupling clamp or
piercing set screw at this time. (The lower end of the
Pushbutton protective
cover (open)
Remote-control blocking
switch (Catalog Number
Suffix "-Y")
Open/close pushbuttons
Arrow plate
Extra auxilliary switch,
8-PST (Catalog Number
Suffix "-W"); 12-PST version
(Catalog Number Suffix "-Z")
is similar
Motor contactor,
opening
Motor contactor,
closing
I
lowest section of vertical operating pipe will, of course,
be cradled in the open flexible coupling attached to the
output shaft of the switch operator.)
While holding the pipe section in this position, and
with the thrust bearing resting on the guide bearing,
tighten the piercing set screw in the thrust bearing ,
piercing the pipe, and continue turning until a firm resis-
tance is felt. At the universal coupling, tighten the
clamp bolt to final tightness, then tighten the associated
piercing set screw, piercing th e pipe, and continue turn-
ing until a firm
resistance is felt. (If an intermediate
guide bearing assembly is used, tighten the clamp bolt
on the rigid coupling to permanent tightness; then
tighten the associated piercing set screw, piercing the
pipe, and continue turning until a firm resistance is felt.)
Operation counter
(optional on earlier models)
Position-indexing drums
Travel-limit switch, 2-PST
(not visible in photo)
- -- Auxiliary switch, 8-PST
i-- -- Extra auxiliary switch,
4-PST (Catalog Number
Suffix "-Q")
Motor-circuit two-pole
----- pull-out fuseholder
Manual operating handle interlock switch
and mechanical blocking rods
Conduit-entrance
plate
Figure
2. Interior views of switch operator.
769-500 INSTRUCTION SHEET
Page 6 of 23
April 22, 1996 S&C ELECTRIC
COMPANY• Chicago It
S&C ELECTRIC CANADA LTD.• Toronto

IINSTALLATION -Continued
Step 3
Mark the conduit-entrance location for the control-circuit
wiring
on the co nduit-entrance plate in the bottom of the
switch operator enclosure. See Figure
2.
Remove the conduit-entrance plat e a nd cut out the
required opening. Replace the plate and make up the
entrance fittings. Apply sealing compound (provided
with
each switc h operator) when replacing the conduit-
e
ntranc e plate. Verify that the entrance fittings are
properly sealed to prev ent water ingress.
Pushbutton protective cover (closed)
uplex receptacle and convenience-
;iht lampholder with switch (Catalog
umber Suffix "-V")
1structions, switch operator
·avel-limit adjustment
Instruction
manual and holder
Step 4
A CAUTION
Remove the two-pole pull-outfuseholders for the motor
circuit and space-heater circuit. See Figure 2.
Failure to remove these fuseholders can result in
accidental energizing
of the operator after the external
connectio
ns have been completed.
Reinsert the fuseholders only when directed to do
so in the steps that follow.
Remove the blocking from the motor contactors.
I
Connect the external control-circuit wiring (including
space-heater
source leads) to the terminal blocks of the
switch
operator in accordance with the wiring diagram
furnished.
For 12-volt de models, mount the battery in the
batte ry compartment and connect it to the battery cables
which are located
at the rear of the battery compartment.
Position-indicating lamps
(Catalog Number Suffix "- M ")
Brake-release solenoid
Terminal block
A NOTICE
Space-heater circuit two-pole
pull-out fuseholder Space heater
These illustrations are not applicable
to 12-volt
de models. Those models
utilize a number of different compo-
nent parts and a different internal
layout. Among the differences is
in-
clusion of a constant-burden battery
charger mounted
on a swingout pan-
el, as well as the use of a separate
two-pole control-source disconnect
switch
in series with control-source
fuses (located
on the inside rear
wall)
in lieu of the motor-circuit two-
pole pull-out fuseholder. Those mod-
els, further, include a separate com-
partment beneath the enclosure,
which houses the 12-volt
de battery.
S&C ELECTRIC COMPANY• Chicago
S&C ELECTRIC CANADA LTD.• Toronto
INSTRUCTION SHEET 769-500
Page 7 of 23
April 22, 1996

S&C
Switch
Operators
-
Type
AS-1A
I
INSTALLATION -Continued
A
NOTICE
Direct-current switch operators are furnished with
polarity-sensitive motors.
Observe the polarities indicated
on
the wiring dia-
gram for switch
operator
motor
when making external
control-circuit connections.
A
CAUTION
Do
not
make unauthorized changes in the wiring
of
this
switch operator. Unauthorized changes may result in
equipment damage
or
personal injury.
To
make a control-circuit modification, requ
est
a
revised wiring diagram from
S&C
Electric Company.
Diagram
must
meet
with the approval
of
both
the
user
and
S&C
Electric Company.
I
MANUAL OPERATION
Before proceeding further, familiarize yourself with the
operation
of
the manual operating handle and the selector
handle, as described
on
the switch
operator
nameplate on
Piercing set screws
Manual operating handle
Latch knob
Figure
3.
Manual operation.
769-500
INSTRUCTION
SHEET
Page 8
of
23
April
22, 1996
A
NOTICE
Control-circuit
wmng
must
meet
mm1mum size
requirements, as specified in
S&C
Data Bulletin 769-60
and
on
the switch
operator
wiring diagram furnished.
I
I
the right-hand side
of
the enclosure
and
in the following
Steps
5,
6,
and
7.
See Figures 3
and
4.
m...
,--------
Vertical operating pipe
Selector handle
(in coupled position)
Switch operator
nameplate
S&C ELECTRIC
COMPANY•
Chicago
It
S&C ELECTRIC
CANADA
LTD.•
Toronto

I MANUAL OPERATION - Continued
A CAUTION
Do not manually open or close the switch operator
while the Alduti-Rupter Switch is energized.
Operating the switch under reduced operating
speed may cause excessive arcing, resulting in short-
ened interrupter life, or damage to the interrupters.
If switch operator control voltage is not available
and emergency manual opening is absolutely required,
crank the manual operating handle rapidly throughout
its full travel. Do not stop or hesitate part way.
To avoid closing into a fault, never close the switch
manually.
Step 5
To
operate manually: Pull the latch knob on the hub
of the manual operating handle and pivot the handle
forward slightly from its storage position. Release the
latch knob while continuing to pivot the handle forward
to lock it into the cranking position. See Figure 3. (As
the handle is pivoted forward the motor brake is
mechanically released, both leads of the control source
are automatically disconnected, and-except for 12-volt
de models-both the "opening" and "closing" motor
contactors are mechanically blocked in the open
position.)
If desired, during manual operation, the switch opera-
tor may also be disconnected from the control source by
removing the motor-circuit two-pole pull-out fuseholder,
located on the right-hand inside wall of the enclosure.
To return the manual operating handle to its storage
position, pull the latch knob and pivot the handle approxi-
mately
90 degrees. The handle will then be disengaged
from the switch operator and may be rotated freely in
either direction
to its storage position. Complete the
handle storage by pivoting the operating handle backward
approximately 90 degrees until it latches in the storage
position.
Note
that the manual operating handle may be disen-
gaged from
the switch operator mechanism at any posi-
tion of the handle.
Always padlock
the handle in its storage position.
Step 6
To
decouple: The integral external selector handle, for
operation
of the built-in internal decoupling mechanism,
is located
on the right-hand side of the switch operator
enclosure. See Figure 3. Swing the selector handle upright
and slowly rotate it clockwise 50 degrees to the decou-
pled position. See Figure 4. This decouples the switch
operator mechanism from the switch operator output
shaft. Then lower the selector handle to engage the lock-
ing tab. When thus decoupled, the switch operator may be
S&C ELECTRIC COMPANY• Chicago
S&C ELECTRIC CANADA
LTD.• Toronto
I
operated either manually or electrically without operating
the Alduti-Rupter Switch. When the selector handle is in
the decoupled position, the output shaft is prevented from
moving by a mechanical locking device located within
the
switch operator enclosure. During the intermediate seg-
ment of the selector handle travel, which includes the
position at which actual disengagement ( or engagement)
of the internal decoupling mechanism occurs, the motor-
circuit
source leads are momentarily disconnected and
(except for 12-volt de models) both the "opening" and
"closing" motor contactors are mechanically blocked in
the open position. Visual inspection, through the observa-
tion window, will verify
whether the internal decoupling
mechanism is in the coupled or decoupled position. See
Figure
5. Padlock the selector handle in eitherposition.
Selector handle
(being turned to
decoupled position)
Figure 4. Selector handle operation.
INSTRUCTION SHEET 769-500
Page 9 of 23
April 22, 1996

S&C Switch Operators - Type AS-1A
IMANUAL OPERATION -Continued
Step 7
To couple: Manually
operate the switch operator to bring
it
to the same position ( ope n or closed) as the Alduti-
Rupter Switch. The
sw it ch operator position indicator,
se en through the observation window, will show when the
approximate
open or closed position has been attained.
See Figure 5. (The position indicator for
th e Alduti-Rupter
Switch, l
oc at ed on the output-shaft co ll ar of the sw itch
IADJUSTMENTS
A CAUTION
Remove the tw o-pole pull-outfuseholders for the motor
circuit a nd space-heater circuit. See Figure 2.
Failure to remove fuseholders can re su lt in acci-
dental energizing
of the operator after the externa l
co nn ections have been completed.
Reinsert fuseholders only when directed
to do so in
the
steps that follow.
Make certain
that th e main contacts on all three switch
poles are fully closed and, where applicable,
the switch
toggle mechanisms are in an overtoggle position agai
nst
their respective closed stops. Refer to the instruction
sh eet furnished with the Alduti-Rupter Switch.
With the
selector handle in th e coupled position, manu-
ally
crank the switch operator to the fully closed position,
as indicated by the switch operator position indicator. See
Figure 5.
At the switch operator output shaft , replace the detach-
able portion
of the coupling clamp. Make ce rtain that the
cutting tips of the piercing set screws do n ot protrude
I
operator, will be aligned later.) To move the switch opera-
tor to the exact position for coupling, turn the manual
operating handle slowly until
the position-indexing drums
ar e numerically aligned. Then sw ing the selector handle
uprig
ht a nd rotate it count erclockwise to th e co upled
position. Lower
the handle to engage th e lo ck ing tab. The
sel
ector handle is now in the co upl ed position.
I
through the body of the coupling. Torque th e flexible co u-
pling clamp bolts equally to final tightness
so that the
clamp pulls down evenly on th e vertical-operating-pipe
section. Then tighten
the associated piercing set screws,
piercing the pipe, and
co ntinue turning until a firm resis-
tance is fe lt. See Figure 3.
Step 9
With the selector handle in the coupled position, crank
the Alduti-Rup te r Switch to the fully open position, then
to the fully closed position, and in ea ch position accu-
rately align
th e switch position indicators on the output-
shaft collar
of the switch operator with th e alignment
arrow below. S ee Fi gure 1. Each Alduti-Rupter Switch
po sition indi cator can be shifted after loos en ing the hex-
h
ea d screws which fasten it to the output-shaft collar.
Tighten
these screws after making the above alignments.
For Type AS-lA Switch Operators furnished
with Source-Transfer Control Compatibility
(suffix "-Ul"), omit Steps 10 through 17 and,
instead, follow the step-by-step procedure out-
lined in the Appendix.
Position-indicating lamps
(Catalog Number Suffix "-M")
Internal decoupling
mechanism (in decoupled
position)
Arrow
plate
Position-indexing drums
Figure
s. Views of switch operator through observation window.
769-500 INSTRUCTION SHEET
Page 10 of 23
April 22, 1996
Internal decoupling
mechanism
(in coupled position)
S&C ELECTRIC COMPANY• Chicago iD
S&C ELECTRIC CANADA LTD.• Toronto

IADJUSTMENTS -Continued
Step 10
The cranking direction to close the Alduti-Rupter Switch
is indicated by an arrow plate located near the hub of the
manual operating handle. See Figure 5. This direction is
normally predetermined from the erection drawing for the
specific installation and factory set accordingly. The direc-
tion of rotation of the switch operator motor is also
normally
set at the factory.
In
the event that the cranking direction required to
close the Alduti-Rupter Switch is opposite to that indi-
cated by the arrow plate, remount the arrow plate, expos-
ing its opposite side. (Direction of motor rotation will be
checked in Step 12.)
Temporarily mark on the top of the switch operator
enclosure the direction in which the output shaft rotates
to close the Alduti-Rupter Switch.
Step 11
Place the selector handle in the decoupled position in
preparation for electrical operation.
Step 12
With the manual operating handle in its storage position
and the selector handle in the decoupled position, rein-
sert the motor-circuit fuseholder. Open the pushbutton
protective cover* and operate the switch operator by
means of the externally mounted "Open-Close" pushbut-
tons, if provided, or, in their absence, by momentarily
jumpering terminals 1 and 8 to open, and 1 and 9 to
close.... Note the direction -in which the travel-lirnit earns
rotate
when the switch opera.tor closes. This direction
should agree with
the temporary direction mark previ-
ously
made on the top of the enclosure. (As a matter of
information, the direction of rotation of the travel-limit
cams is always the same as the direction of rotation of the
output shaft.)
In
the event that the direction of rotation of the travel-
limit cams (as noted above) is opposite to the temporary
direction mark previously made on the top of the enclo-
sure, a
reversal of the motor direction will be necessary.
Remove the motor-circuit fuseholder to avoid accidental
or remote energization of the control circuit. Inter-
change the "Sl" and "S2" motor leads connected toter-
minals 4 and 5 on the terminal block in the switch
operator enclosure. (On 12-volt de switch operators,
interchange the "Sl" and "S2" motor leads connected to
the motor terminals.)
It should
be noted particularly that reversal of the
motor direction reverses only the direction of rotation of
the output shaft and travel-limit cams. The identity of the
opening-stroke and closing-stroke travel-limit cams
(which will be adjusted later) will remain unaffected.
S&C ELECTRIC COMPANY• Chicago
S&C ELECTRIC CANADA
LTD.• Toronto
I
Step 13
The travel-limit switch ( coupled to the motor), which
governs the extent of output-shaft rotation in the open-
ing
and closing directions, includes two contacts that are
operated by cam-actuated rollers. See Figure 6. The
cams (upper one is the opening-stroke travel-limit cam;
and the one immediately below is the closing-stroke
travel-limit
cam) are individually adjustable in 4.5-degree
increments. Therefore, each cam can be adjusted to
advance or retard engagement with its roller and thus
open or close the corresponding switch contact, as
desired, during motor operation. Advancing a cam
advances roller engagement to de-energize the corre-
sponding motor contactor earlier and thus decreases the
extent of output-shaft rotation. Conversely, retarding a
cam retards engagement with its roller to delay de-ener-
gization
of the corresponding motor contactor and thus
increases the extent of output-shaft rotation.
The travel-limit cams ( as well as the auxiliary-switch
cams) are to be adjusted as directed in Steps 14 through
19 using
the following procedure ( do not make anyadjust-
ments at this time):
(a) Rernove the rnotor-circuitfuseholder.
(b) Raise ( or lower) the cam toward its adjacent spring
until the cam is separated from the teeth of the inner
gear.
(c) Rotate
the cam to advance or retard engagement with
its roller. See Figures 6 and 7. Advance the cam to
decrease travel. Retard the cam to increase travel.
(d) Lower (
or raise) the cam making sure that the teeth
are in mesh with the inner gear.
Preliminary Adjustment of Travel-Limit Cams
Step 14
The adjustments described in this step are necessary only
in
the event that a reversal of the motor direction was
required, as described in Step 12. If such motor reversal
was not required, proceed to Step 15.
Closing-Stroke '!ravel-Limit Cam. Place the selec-
tor handle in the coupled position. Manually operate the
switch operator in the closing direction and observe the
closing-stroke travel-limit cam. At the completion of the
switch operator closing stroke, the leading edge of the
closing-stroke travel-limit cam should be engaged with its
associated roller.
If the leading edge is not engaged with
its roller,
adjust the closing-stroke travel-limit cam (as
described in Step 13) so that its leading edge touches ( or
nearly touches) the roller.
* For switch operators with optional remote-control blocking switch
(suffix
"-Y"), openmg the pushbutton protective cover prevents remote
operation
of the switch operator
A Termmal designations may differ m special wiring diagrams In
such cases, refer to the specific wiring diagram for the correct terminal
des1gnat10ns.
INSTRUCTION SHEET 769-500
Page 11 of 23
April 22, 1996

S&C Switch Operators - Type AS-1 A
IADJUSTMENTS -Continued
Switch operator
position indicator
Opening-stroke
contact
Opening-stroke
roller
Use when
direction of output shaft and travel-limit cam
rotation is clockwise
to open.
Adjacent spring
Opening-stroke
;;.... --- travel-limit cam
(in raised position)
Opening-stroketravel-limit
cam (with switch operator
in
fully closed position-raise
and turn
cam counterclock-
wise
to increase travel of
switch operator)
Switch operator
position indicator
Closing-stroke
roller
Closing-stroke
contact
Closing-stroke
travel-limit cam
(in lowered position)
Adjacent
spring
Closing-stroke travel-
limit cam (with switch
~
--- operator in fully open
position-lower and turn
cam clockwise to increase
travel
of switch operator)
Use when
direction of output shaft and travel-limit cam
rotation
is counterclockwise to open.
Opening-stroketravel-I
imit
cam (with switch operator in
fully closed position-raise
and turn cam clockwise
to
::....oi ~ ----- increase travel of switch
operator)
Closing-stroke travel-limit
cam (with switch operator
in
br- ---- fully open position-lower
and turn cam counterclock-
wise
to increase travel of
switch operator)
Figure
6. Adjustment of travel-limit cams.
I
769-500 INSTRUCTION SHEET
Page 12 of 23
April 22, 1996
S&C ELECTRIC COMPANY• Chicago II
S&C ELECTRIC CANADA LTD.• Toronto

IADJUSTMENTS - Continued
Opening-Stroke Travel-Limit Cam. With the selec-
t
or handle in the co upl ed position, manually operate the
switch operator in the opening direction and observe the
opening-stroke travel-limit
cam . At the completion of the
switch operator opening stroke,
the leading edge of the
opening-stroke travel-limit
cam should be engaged with
its roller.
If the leading edge is not engaged with its roller,
acljust the opening-stroke travel-limit
cam (as described in
Step 13)
so that its leading edge touches ( or nearly
touches) the roller. Return
the manual operating handle to
its storage position.
Intermediate Adjustment of Travel-Limit Cams
Step 15
The adjustments described in this step are required to
obtain a close approximation of the correct travel of the
switch operator in the decoupled position-i.e., in a no-
l
oad co ndition, in order to avoid inadvertently overdriving
the Alduti-Rupter Switch when the switch
operator is first
used for
pow er opening or closing of the switch.
Closing-Stroke Travel-Limit Cam. With the selector
handle in the coupled position, manually c
rank the Alduti-
Rupter Switch
to its fully closed position. Return the
manual operating handle to its storage position. Then
place
the selector handle in the decoupled position and
replace the motor-circuit fuseholder.
Figure 7. Adjustment of cams on auxiliary switch.
S&C ELECTRIC
COMPANY• Chicago
S&C ELECTRIC CANADA
LTD.• Toronto
I
Operate the switch operator electrically to open, and
then to close.
If the position-indexing drums are not
numerically aligned, operate the switch operator electri-
cally
to open. Remove the motor-circuit fuse holder. Then
acljust the closing-stroke travel-limit cam,
as described in
Step
13, the necessary number of increments to attain
numerical alignment
of the position-indexing drums at the
completion
of a switch operator closing stroke.
Opening-Stroke Travel-Limit Cam. With the selec-
tor handle in the coupled position, manually crank the
Alduti-Rupter Switch to its fully open position. Return the
manual operating handle to its storage position. Then
pla ce the selector handle in the decoupled position and
replace
the motor-circuit fuseholder.
Operate the switch
operator electrically to close, and
then to open. If the position-indexing drums are not
numerically aligned, operate the switch operator electri-
cally
to clos e. Remove the motor-circuit fuseholder. Then
adjust the opening-stroke travel-limit cam,
as described in
Step
13, the necessary number of increments to attain
numerical alignment
of the position-indexing drums at the
completion
of a switch operator opening stroke.
Contact (closed)
Roller
-------- Cam (lowered toward
adjacent spring)
Adjacent spring
INSTRUCTION SHEET 769-500
Page 13 of 23
April 22, 1996

S&C Switch Operators - Type AS-1A
IADJUSTMENTS -Continued
Final Adjustment of Travel-Limit Cams
Step 16
The adjustments described in this step are necessary to
ensure complete opening and closing of the Alduti.-Rupter
Switch. Therefore, attention must now be directed to the
open and closed stops of the switch.
Operate the switch operator electrically to open and
close the Alduti-Rupter Switch. Observe the toggle mecha-
nisms
(if applicable) and the open stops on the switch. It
is likely that full opening and closing travel will not have
been attained. This is because the travel-limit cams were
adjusted to limit the extent of output-shaft rotation while
the switch operator was in the decoupled position-i.e., in
a no-load condition. To attain full stop positions (and
over-toggle positions, where applicable) of the Alduti.-
Rupter Switch, refer to Figure 6 and proceed as described
below.
Closing-Stroke 'lravel-Limit Cam. If full closing of
the Alduti-Rupter Switch was not attained, replace the
motor-circuit fuseholder and operate the switch operator
electrically to open the Alduti-Rupter Switch. Remove the
motor-circuit fuseholder.
To increase travel in the closing direction, retard the
closing-stroke travel-limit cam one 4.5-degree increment
(1) in the clockwise direction if the travel-limit cam and
output shaft rotate clockwise to open the Alduti-Rupter
Switch;
or (2) in the counterclockwise direction if the
travel-limit cam and output shaft rotate counterclockwise
to open the Alduti-Rupter Switch. Replace the motor-cir-
cuit fuseholder and operate the switch operator electri-
cally to close. If full closing travel has not been attained,
repeat the procedure described above until full closing
travel
is attained.
Opening-Stroke 'Iravel-Limit Cam. If full opening of
the Alduti-Rupter Switch was not attained, operate the
switch operator electrically to close the switch. Remove
the motor-circuit fuseholder.
769•500 INSTRUCTION SHEET
Page 14 of 23
April 22, 1996
I
To increase travel in the opening direction, retard the
opening-stroke travel-limit cam one 4.5-degree increment
(1)
in the counterclockwise direction if the travel-limit
cam and output shaft rotate clockwise to open the Alduti-
Rupter Switch;
or (2) in the clockwise direction if the
travel-limit cam and output shaft rotate counterclockwise
to open the Alduti-Rupter Switch. Replace the motor-cir-
cuit fuseholder and operate the switch operator electri-
cally
to open. If full opening travel has not been attained,
repeat the procedure described above until full opening
travel
is attained.
Step 17
When travel-limit cam adjustments have been completed,
it may be necessary to realign the Alduti-Rupter Switch
position indicators
on the switch operator output-shaft
collarwith
the alignment arrow.
With the switch operator in the fully open position and
then in the fully closed position, check the corresponding
switch operator position indicator. In each position, the
corresponding position indicator should be readily visible
from
the front of the enclosure. If adjustment of either
position indicator is necessary, remove
the motor-circuit
fuseholder, loosen the two set screws on the position indi-
cator,
and rotate the position indicator to the desiredposi-
tion. Retighten
the set screws. See Figure 8.
Step 18
The auxiliary switch, which is permanently coupled to the
motor, includes eight contacts (terminals 11 through 26).
If the optional position-indicating lamps are included, six
contacts are available (terminals 13 through 18 and 21
through 26). These contacts are provided so that external
circuits can be established to monitor switching opera-
tions. Each contact is operated by a cam-actuated roller.
The cams are individually adjustable in 4.5-degree incre-
ments. Adjustment of the cams is accomplished in a
manner identical to that indicated in Step 13 for the travel-
limit cams.
S&C ELECTRIC COMPANY• Chicago Ill
S&C ELECTRIC CANADA LTD.• Toronto

IADJUSTMENTS -Continued
The "standard" configuration for the auxiliary switch
consists of four "al" contacts (terminals 11 through 18)
and four "bl" contacts (terminals 19 through 26). Thus,
with the switch operator in the open position, the "al"
contacts are open and the "bl" contacts are closed. Con-
versely,
with the switch operator in the closed position,
the "al" contacts are dosed and the "bl" contacts are
open. A contact is dosed if its roller is disengaged from a
cam and, conversely, a contact is open if its roller is
engaged by a cam. See Figure 8.
Any auxiliary-switch contact being used must be
checked for proper operation after the switch operator
travel-limit cams have been adjusted. Check the auxiliary-
switch contacts for both the open and closed positions of
the Alduti-Rupter Switch. If necessary, adjust the cams as
described in Step 13 so that the auxiliary-switch contacts
are in the desired open or closed position (i.e., cam
engaged with roller, or cam disengaged from roller). See
Figure 7.
Since each cam can be individually adjusted in 4.5-
degree increments, any "al" contact can be changed to a
"bl" contact, or vice versa. Also, because of the many
positions to which the cams can be adjusted, the various
rollers can be engaged or disengaged to respectively open
or close their contacts simultaneously,·sequentially, ran-
domly, or in various combinations. Adjustment of the aux-
iliary-switch
contacts for other than the "standard"
configuration is left
to the user. Remember that the motor-
circuit fuseholder shoul,d be removed when adjusting
these contacts. (Switch operators having catalog numbers
with the suffix "-Q" are equipped with an extra auxiliary
switch,
terminals 27 through 34, having four con-
tacts-two "al" and two "bl"-which may be adjusted as
described in Step 13(a) through (d). See Figure 8.)
Step 19
Switch operators having catalog numbers with either the
suffix "-W" or "-Z" are equipped with an extra auxiliary
switch which is pem1anently coupled to the Alduti-Rupter
S&C ELECTRIC COMPANY• Chicago
S&C ELECTRIC CANADA LTD
.• Toronto
I
Switch. The suffix "-W" auxiliary switch consists of eight
contacts (terminals 35 through 50). The suffix "-Z" auxil-
iary
switch consists of twelve contacts (terminals 35
through 50 plus terminals 80 through 87). These contacts
are provided so that external circuits can be established
to monitor Alduti-Rupter Switch operation. Each contact
is operated by a cam-actuated roller and the cams are
individually adjustable in 4.5-degree increments.
The "standard" configuration for the suffix "-W" extra
auxiliary switch consists of four "a2" contacts (terminals
35 through 42) and four "b2" contacts (terminals 43
through 50). The "standard" configuration for the suffix
"-Z" extra auxiliary switch consists of six "a2" contacts
(terminals 35 through 42 and terminals 80 through 83)
and six "b2" contacts (terminals 43 through 50 and termi-
nals 84 through 87). Thus, with the Alduti-Rupter Switch
in the fully closed position, the "a2" contacts should be
closed and the "b2" contacts should be open. Conversely,
with the Alduti-Rupter Switch in the fully open position,
the "a2" contacts should be open and the "b2" contacts
should be closed. See Figure 8.
Any suffix "-W" or "-Z" auxiliary-switch contact being
used must be checked for proper operation after satisfac-
tory electrical operation of the Alduti-Rupter Switch has
been achieved. Check the auxiliary-switch contact
engagement for both the open and closed positions of the
Alduti-Rupter Switch. Adjustment of the suffix "-W" or "-Z"
extra auxiliary switch is identical to the adjustment per-
formed for the travel-limit switch, the auxiliary switch,
and the suffix "-Q" extra auxiliary switch. Therefore, if
adjustment of the suffix "-W" or "-Z" auxiliary switch is
needed, refer to Step 13 and Figures 7 and 8.
Step 20
Reinsert the fuseholders for the motor circuit and space-
heater circuit.
INSTRUCTION SHEET 769-500
Page 15 of 23
April 22, 1996

S&C
Switch
Operators
-Type
AS-1A
I
ADJUSTMENTS -Continued
Extra auxiliary switch
(Catalog Number
Suffix
"-W"
or "-Z")
Figure
8.
"Standard" contact configurations.
769-500
INSTRUCTION
SHEET
Page
16
of
23
April
22, 1996
'
Travel-limit switch,
auxiliary switch,
i-a.
---
and extra auxiliary
Open front view
of
switch operator
switch (Catalog
Number Suffix "-Q")
S&C ELECTRIC
COMPANY•
Chicago
It
S&C ELECTRIC CANADA
LTD.•
Toronto

I
ADJUSTMENTS-
Continued
Set screw
(2
per indicator)
Travel-limit
switch
"a1"
contacts
closed Auxiliary
-
switch,
8-PST
"
b1"
contacts
open
Extra
"a1"
contacts auxiliary
closed switch,
-4-PST
"b1"
contacts (Catalog
open Number
Suffix "-Q")
Switch
op
erator
in
fully
closed
position
Ha2
"
contacts Extra
closed auxiliary
switch, Extra
8-PST
(Catalog auxiliary
"b2"
Number switch,
contacts Suffix "
-W
") 12-PST
open (Catalog
Number
Suffix "-Z")
"a2"
contacts
closed
~
"b2"
contacts
open
Alduti-Rupter Switch in
fully
closed
position
S&C
ELECTRIC
COMPANY•
Chicago
S&C
ELECTRIC
CANADA
LTD.•
Toronto
I
Travel-limit switch
"a1 "
contacts
open Auxiliary
-switch,
8-PST
"b1"
contacts
closed
Extra
"a1" contacts auxiliary
open switch,
-4-PST
"b1"
contacts (Catalog
closed Number
Suffix "-Q")
Switch operator in
fully
open position
"a2"
contacts Extra
open auxiliary
switch, Extra
-
8-PST
(Catalog auxiliary
"b2"
Number switch,
contacts Suffix "-W") 12-PST
closed (Catalog
Number
Suffix "-Z")
"a2"
contacts
open
~
"b2"
contacts
closed
Alduti-Rupter Switch
in
fully
open position
INSTRUCTION
SHEET
769-500
Page
17
of
23
April
22, 1996

S&C Switch Operators - Type AS-1A
IINSPECTION SCHEDULE AND PROCEDURES
To assure continued proper performance of the 1.ype
AS- lA Switch Operator, it should be inspected every
5 years. De-energize the associated Alduti-Rupter
Switch and perform the following switch operator
inspection procedures:
1. Check for evidence of water ingress, damage, and
excessive corrosion or wear.
2. Check ease of operation during slow, manual cranking
using
the switch operator manual operating handle.
3. Check electrical operation, coupled and decoupled.
4. Check for loose wiring inside enclosure and proper
functioning of position-indicating lamps, operation
counter, convenience lamp, etc.
5. Check operation of brake and readjust if necessary.
The procedure for doing this is as follows. See Fig-
ure 9.
(a) Place the selector handle in the decoupled
position.
(b) Remove the two-pole pull-out fuseholders for the
motor circuit and space-heatercircuit.
(c) Disconnect
the linkage rod by removing the
¼"-20xl¼" hex-head screw, lockwasher, flat
washer, and spacer-bushing from
the end of the
brake lever, as shown in Detail A. Be careful not to
lose these parts. Then raise the brake lever and
measure the vertical free play, as shown in Detail B.
This dimension should be %" to ¾''. Should the
measurement be outside this range, brake-wear
compensation is required; proceed
to Step (d). If
the measurement is within this range, reattach the
linkage rod and tighten the ¼"-20 xl¼" hex-head
screw securely; proceed to Step (i).
(d) Remove
the four 5 /1s
11
-18xl1/4'' screws used to
attach the motor, withdraw the motor, and care-
fully
rest its shaft on the floor of the enclosure. Be
careful
not to lose the square key or tubular spacer
(if furnished), which may remain on the motor
shaft. Note: 115-volt ac and 230-volt ac motors
utilize a
¼"-20 socket-head set screw on the side
of the brake disc hub, as shown in Detail C. Loosen
this
set screw approximately one-halfturn, using a
1/s" Allen wrench, before removing the motor.
769•500 INSTRUCTION SHEET
Page 18 of 23
April 22, 1996
i
(e) Using a %2
11
Allen wrench, loosen the pad assem-
bly socket-head
set screw on the side of the cali-
per assembly approximately one-half turn. See
Detail A.
(f) Then, using a o/16
11
Allen wrench, rotate the pad
assembly clockwise until the free play at the end of
the brake lever is %
11
to ¾", as shown in Detail B.
Now tighten the %2" pad assembly socket-head set
screw.
(g) Insert
the spacer-bushingthrough the angle bracket
and brake lever, and reattach the linkage rod using
the ¼"-20xl¼" hex-head screw, lockwasher, and
flat washer. Tighten the screw securely.
(h) Insert
the square key in the keyway, as shown in
Detail
A. Slip the tubular spacer (if furnished) over
the motor shaft and reinstall
the motor. Position
the motor
such that the two weep holes on the side
of the housing face downward. Replace the four
o/1s" -18 x1¼" screws used to attach the motor and
tighten
them securely. On 115-volt ac and 230-volt
ac motors, further, retighten the ¼"-20 socket-
head set screw on the side of the brake disc hub.
(i) Check
the operation of the brake linkage as
follows: Pull the latch knob on the hub of the
manual operating handle and slowly pivot the
handle forward from its storage position toward
its cranking position until the brake disc can be
rotated by hand. Be careful not to get grease on
the brake disc. Now measure the distance that the
end of the brake lever travels from the point of
initial brake release to the bottom of its stroke
(which occurs when the handle locks into the
cranking position). This dimension should be 1/s"
to ¼". See Detail D. Should the measurement be
outside this range, refer to the nearest S&C Sales
Office.
Since the Type AS-lA Switch Operator may
be conve-
niently decoupled from
the Alduti-Rupter Switch, elective
exercising
of the operator may be performed at any time
without requiring an outage
or switching to an alternate
source.
S&C ELECTRIC COMPANY. Chicago 11
S&C ELECTRIC CANADA L TO.• Toronto

IINSPECTION SCHEDULE AND PROCEDURES -Continued
Brake
disc
Pad assembly
socket-head
set screw
( %2'' Allen wrench
required)
screw
~·"'
assembly Caliper assembly
DETAIL A
Brake assembly
Linkage rod
o/1&"-18X1¼"screws
Operating linkage
r disconnected from brake lever
DETAILB
Measuring brake
leverfree play
__ Ll %"-¾" vertical free play
Brake lever
Operating linkage
connected to brake lever
/ Point of initial manual brake release
1/a"-1/4" travel
DETAILD
¼"-20 socket-head set screw
(1/a" Allen wrench required)
DETAILC
Location of motor shaft set screw
(115- &230-vac operator only)
I
Measuring brake Brake leverat bottom of its stroke (manual operating
lever stroke handle
in cranking position)
Figure 9. Brake Inspection procedure.
S&C ELECTRIC COMPANY• Chicago
S&C ELECTRIC CANADA
LTD.• Toronto
INSTRUCTION SHEET 769•500
Page 19 of 23
April 22, 1996

S&C
Switch
Operators
-
Type
AS-1 A
I
CHECKING SWITCH OPERATOR AND ALDUTI-RUPTER SWITCH POSITIONS
I
Do
not
assume
that
the
switch
operator
position neces-
sarily indicates
the
open
or
closed position
of
the
Alduti-
RupterSwitch. Upon completion
of
an
opening
or
closing
operation (electrical
or
manual),
check
to
be
sure
that
the
following conditions exist:
• The
switch
operator
position indicator, Figure
5,
sig-
nals ·'OPEN"
or
"CLOSED"
to
indicate
that
the
switch
operator
has
moved through a complete operation.
Also
note
the
position-indicating lamps, Figure
5,
if
furnished.
• TheAlduti-Rupter Switchpositionindicator, located on
the
switch
operator
output
shaft. Figure
1,
is in agree-
ment
with
the
switch
operator
position indicator. That
is,
both
indicators should simultaneously show
"OPEN"
or
"CLOSED."
•
The
blades
on all
three
poles
of
the
Alduti-Rupter
Switch
are
fully
open
or
fully closed
(by
visual verifi-
cation).
I
APPENDIX
For
Type
AS-IA
Switch
Operators
furnished
with
Source-Transfer
Control
Compatibility
(suffix
"-Ul"),
follow
the
step-by-step
proce-
dure
outlined
below
after
having
completed
Step
9.
Step
A
The cranking direction
to
close the Alduti-Rupter Switch
is indicated by
an
arrow
plate located
near
the
hub
of
the
manual operating handle. See Figure
5.
This direction has
been
predetermined from
the
erection drawing for
the
specific installation and has
been
factory-set accordingly.
The direction
of
rotation
of
the
switch
operator
motor
has
also
been
set
at
the factory.
Verify
that
these directions
of
rotation are
correct
as
follows:
(a)
With
the
selectorhandle in the coupled position, man-
ually
crank
the
Alduti-Rupter Switch
to
the
fully
open
position and then
to
the fully closed position. Tempo-
rarily
mark
on the
top
of
the
switch
operator
enclo-
sure
the
direction in which
the
output
shaft rotates to
close
the
Alduti-Rupter Switch.
(b)
If
the
cranking direction required
to
close
the
Alduti-
Rupter S\vitch is opposite to
that
indicated by
the
arrow
plate, remove the arrow-plate mounting screws
and
remount
the
arrow plate, exposing
the
opposite
side.
769-500
INSTRUCTION
SHEET
Page 20 of 23
April 22, 1996
Then tag
and
padlock the switch operator in accor-
dance with standard system operating procedures. In all
cases, make certain
that
the
switch operator is padlocked
before "walking away."
To
restore
to
normal
operation
So
that
the
switch operator is ready for normal
power
operation
of
the
Alduti-Rupter Switch by remote auto-
matic
or
supervisory control,
be
sure that the following
conditions exist:
• The selector handle is in the coupled position.
• The manual operatinghandle is in its storageposition.
• The two-pole pull-out fuseholders for
the
motor
circuit
and space-heater circuit
are
inserted.
• The pushbutton protective cover
is
closed.
• The switch operator
is
tagged
and
padlocked in accor-
dance with standard system operating procedures.
I
(c) With the manual operating handle in its storage posi-
tion and
the
selectorhandle in the decoupled position,
reinsert
the
motor-circuit fuseholder. Open
the
push-
button protective cover and operate
the
switch opera-
tor
by means
of
the
externally mounted open/close
pushbuttons, if provided,
or
in their absence, by
momentarilyjumpering terminals 1 and 8 to open, and
1 and 9
to
close.A
Note the direction
'in
which the
travel-limit discs rotate when the switch operator
closes. The direction should agree with
the
temporary
direction
mark
previously made
on
the
top
of
the
enclosure and with
the
direction displayed in
the
cut-
away section
on
the
outer
ring
of
the travel-limit discs.
See Figure
10.
(As
a matter
of
information, the direc-
tion
of
rotation
of
the
travel-limit discs
is
always the
same
as
the
direction
of
rotation
of
the outputshaft.)
(d) In
the
event
that
the
direction
of
rotation
of
the
travel-
limit discs
noted
in (c) above
is
opposite to the tempo-
rary direction mark previously made in (a) above, a
reversal
of
the
motor
direction will
be
necessary.
Remove the motor-circuit juseholder
to
avoid acci-
dental
or
remote energization
of
the control circuit.
Interchange
the
"Sl"
and
"S2"
motor leads connected
to
terminals 4
and
5
on
the
terminal block in the
switch operatorenclosure.
• Terminal des1gnat10ns may differ m special wtring diagrams. In
suc:h cases,
refer
to
the
spectfk
winng
diagram for
the
correct
termmal
designat10ns
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It
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LTD.•
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