INSTRUCTION PAMPHLET NUMBER U "'1Ji:t31

UNION SWITCH & SIGNAL ..... SWISSVA.LlfJJl'"1. DIVISION OF WESTINGHOUSE AIR BRAKE COMPAPY

STYLE F-10 TUNED ALTERNATOR

Catalog Plate W-16

********************************** This instruction pamphlet covers the description, application, mainte­

nance, inspection and test of the Style F-10 tuned alternator used as wayside equipment.

INDEX

Page

DESCRIPTION. . . . . . . . . . . . . 1 FIG. NO. 1 - TYPICAL CIRCUIT . 2 APPLICATION . . . . . . . . . . . . 2 REFERENCES............. 3 MAINTENANCE AND FIELD INSPECTION.. 3 TABLE I - FIELD TESTS. . . . . . . . . . . . . 3 SHOP REP AIRS. . . . . . . . . . . . . . . . . . . . 4

A. Removal of Alternator Mechanism From Case and Top Plate. . . . . . . . . . 4

B. Contact Dressing. . . . . 4 C. Contact Replacement . . 4 D. Armature Replacement. 5 E. Contact Readjustment. . 5 F. Electrical Calibration and Load Tests. 6

FIG. NO. 2 - TEST CIRCUIT. . . . . . 7 MEGGER TEST. . . . . . . . . . . . . . 7 TABLE II - SHOP ADJUSTMENTS . 8 TABLE III - LOAD TESTS. . . . . . . 8

DESCRIPTION

The Style F-10 Tuned Alternator is used in conjunction with an output trans­former and condensers to convert direct current into alternating current at the desired voltages and frequencies.

The operating portion of the alternator comprises an armature which carries the moving contacts. This armature is tuned by physical design and by contact adjustment to a definite frequency and is self driven at that fre­quency by means of a set of driving contacts which control the application of di­rect current energy to a very efficient magnetic circuit. High efficiency in the operating mechanism is obtained by the application of two large Alnico perman­ent magnets to the magnetic circuit.

July 23, 1952

u. s. & s. - 2 - U-5421

The driving coil requires from 1 to 6' watts, depending upon the frequency and load power requirements. The overall efficiency of this alternator and its output transformer is approximately 70% at rated load. It is extremely efficient in comparison with the rotating type of converters of similar capacity.

In addition to the set of driving contacts referred to above, four sets of power contacts, two left and two right, are provided for energizing the output transformer. Fig. 1 shows the method of using these contacts in a typical cir­cuit.

All contacts are 1/4 in. in diameter. The contacts on the armature are supported by special springs designed to operate free from bounce at rated fre­quencies. The fixed contacts are made with screw type supports so that they can be readily adjusted.

----,

OUTPUT TRANSFORMER CONDENSER

TO LOAD

+

FIGURE 1. ... TYPICAL CIRCUIT

APPLICATION

The Style F-10 Tuned Alternator is used in conjunction with an output trans­former, proper condensers, and in special cases an output filter, to provide a source of alternating current from a direct current source of supply. It is best suited for stand-by service, or in places where the a-c. power is required only when trains are in the track circuit.

The output transformer may be arranged to provide either track or line a-c. output or both. The power output for the standard arrangement is 100

U S. & S. - 3 - U-5421

volt-amperes, but this may be increased to 225 volt-amperes by the use of a special output filter. The combination is available in frequencies of from 60 to 100 cycles.

The type of load to be supplied materially affects the output and life char­acteristics of the alternator combination, and any proposed application should be referred to our Engineering Department for approval before it is considered for use, in order that we may consider the feasibility of the arrangement and recommend the proper output transformers and condensers for the particular application.

REFERENCES

The ordering references for the Style F-10 Tuned Alternator are given on Plate W-16 of the U. S. & S. catalog. It is important that the d-c. operating voltage and the desired output frequency be specified in the order.

MAINTENANCE AND FIELD INSPECTION

The operating characteristics of the alternator should be checked twice yearly except in cases of excessive operation, where they should be checked after each 500 hours of actual operation. The starting voltage and frequency should be checked in the field, and the alternator removed for shop repair if they are not within the limits given in TABLE I.

The contacts should be examined to make certain that they are not unduly worn. They normally operate in a roughened condition, so that this, in itself, is not an indication of unsatisfactory operation.

In making the field tests, the tuned alternator may be retained in service and connection made as required to obtain the calibration shown in TABLE I.

TABLE I

FIELD TESTS OF STYLE F-10 TUNED ALTERNATOR (CAT. PL. W-16)

Frequency - Cycles Max.

Pc.No. Rate a 3tarting Voltage Rated Min. Max. Voltage

212500 12 100 95 101 9.0 213750 10/12 60 57 61 8.0 215840 16 60 57 61 12.0 239060 16 100 95 101 9.0 275955 10 80 76 81 8.0

The frequency can be measured by any standard reliable frequency meter. The minimum starting voltage should be checked by placing a voltmeter across the d-c. terminals, inserting a series resistance in the negative lead to the tuned alternator, and reducing this resistance until the alternator just starts to operate. The starting voltage is the voltmeter reading just before the alterna­tor starts to operate.

u. s. & s. - 4 - U-5421

SHOP REPAIRS

All repaired alternators should be adjusted and tested in accordance with TABLES II and III. TABLE II shows the adjustment values which are adhered to in alternators manufactured at our factory, and these adjustment values should be obtained in alternators repaired in the railroad shops.

The detailed references used in describing the following procedures are shown on Catalog Plate W-16 at the end of this pamphlet.

A. Removal of Alternator Mechanism From Case and Top Plate

Remove the base and glass shield by removing the two sealing screws, Ref. 55a, in the botton of the alternator. Remove all wire leads from the top of the alternator mechanism by removing nuts, Ref. 26a, on terminal posts, Ref. 25b. It is unnecessary to unseal the terminals at the top plate. Discon­nect the top plate from the mechanism base by removing nuts at the lower end of rods, Ref. 52. Remove positive lead connection (screw, Ref. 33b) from frame. The top plate and leads can then be swung clear of the operating posi­tion of the alternator.

B. Contact Dressing

Most changes in alternator operation are caused by contact wear. If this wear is not excessive, the alternator can be restored to its original condition through adjustment, by dressing and readjusting the contacts as described be­low.

The surfaces of all contacts should be dressed as flat as possible using a Rimac Flexstone or its equivalent for this purpose as an ordinary steel contact file is not suitable. Both the spring and post mounted contacts may be removed for this operation, the former by removing four bracket screws, Ref. 86, and the latter by removing contact arm, Ref. 20a. Filing of the spring mounted contact will be facilitated if the contact spring is wedged to prevent movement during filing. Care should be taken, however, to see that the contact is not bent out of shape or scratched during the operation. A very fine emery wneel may also be used for resurfacing the contacts. It is recommended that only contact tips which will have at least~ in. of the contact tip rem:ciining after resurfacing be used again. 0.020

C. Contact Replacement

If the contact tips do not have at least 0. 020 in. remaining after resurfac­ing they should be removed per the following instructions and replaced. The fixed left and right post mounted contacts can be readily removed by removing contact arm, Ref. 20 or 20a. With this arm removed, the contacts can be re­moved from the block and replaced with contacts of similar material. The power contact posts, Ref. 21, have tungsten tips and the drive contact post, Ref. 22, has an Elkonium tip.

The movaole contacts and their associated sorings and stops are fastened to the armature on removable brackets. These brackets may be removed from the armature by removing 4 bracket screws, Ref. 86. H.eplacement brackets, Ref. 84 and 85 may then be substituted as necessary and attached to the ar­mature by means of the four bracket screws, Ref. 86.

u. s. & s. - 5 - U-5421

On tuned alternators manufactured prior to 1948, the movable contacts and their associated springs and stops are permanently fastened to the armature so that the contacts may not be removed without removing the entire armature. These alternators may be readily discerned from the newer type by the pres­ence of rivets instead of screws on brackets fastening the movable contacts to the armature. When it becomes necessary to replace the contacts on this type alternator, an armature complete, Ref. 82, 82a or 82b, with removable brack­ets should be ordered.

D. Armature Replacement

If it becomes necessary to replace the armature, it can be removed by re­moving the permanent magnets, Ref. 42, loosening nuts, Ref. 15, and remov­ing lower pole piece stud, Ref. 14. The armature may then be taken from the mechanism and replaced.

If it is necessary to remove the permanent magnets, an iron keeper should be placed across each magnet. Under no circumstances should the magnets be placed together. The location of the magnets should be marked before they are dismantled from the alternator and they should be reassembled in the same position.

If the permanent magnets are handled properly by removing them care­fully and retaining the flux by iron keepers, it should be possible to replace them on the alternator without further checks. These magnets are charged to a definite strength at our factory by means of a suitable charging device. This strength is measured in terms of grams (TABLE II) on a special testing frame which is not usually required in the railroad shops if the magnets are properly handled. Instructions for charging and testing these magnets is given in our In­struction Pamphlets U-5455 and U-5456 covering Magnet Charger and Magnet Tester, respectively.

After the magnets have been assembled, the pole piece air gaps should be set in accordance with the values given in TABLE Il. In making these adjust­ments, make certain that all of the five contacts are open so that they do not make when the armature is extended to the maximum in either direction. Ad­just the right-hand air gap to the minimum value specified in TABLE II, and the left-hand air gap to the maximum value specified. The armature should then be held against the right pole face, and, if necessary, the opening of the right­hand air gap should be increased until the armature does not stick against the right pole piece. It may later be necessary to reduce the left-hand air gap slightly, but not to less than the minimum value specified in TABLE II, to meet the other requirements of alternator operation.

E. Contact Readjustment

After the contacts have been dressed or replaced, they should be adjusted to thP values specified in TABLE II, first making sure that the permanent mag­nets are in place.

The initial contact spring pressure shown in TABLE II represents the force in ounces required at the tip of the contact to just move the contact spring away from the stop. This pressure is set at the factory to the values shown

u. s. & s. - 6 - U-5421

and the contacts are thoroughly baked and rechecked to insure that this value is maintained. If it is necessary to readjust these contacts, care should be taken to make certain that no sharp bends or scratches are produced in the spring structure.

All the contacts should be so adjusted that their faces meet flat when first touching and remain flat during the entire stroke of the contacts. This adjust­ment can be made by slightly bending the metal contact support if necessary or raising or lowering the support by means of the slot provided for this purpose.

The driving contacts are closed when the tuned alternator is deenergized and these contacts should be adjusted to have a contact compression as given in TABLE II. The driving contact should be adjusted first by means of the follow­ing procedure:

1. Back off all post mounted contacts far enough so that there is no possi­bility of the spring mounted contacts touching the post mounted contacts when

I the armature is moved to its limits between the pole pieces.

2. With the armature free, adjust the left-hand rear (power) post mounted contact L2 until an opening of 0. 006 in. to 0. 008 in. exists between the face of this contact and its corresponding movable contacts located on the armature. (All post mounted contacts may be located by reference to the terminal tags on the top plate. )

3. Now force the armature to the left until the movable contact just touches the fixed contact L2. The armature should then be held in this position by in­serting a wooden wedge between the armature and the upper right pole piece.

4. The post mounted driving contact located on the opposite side of the fixed contact structure from contact L2 should then be moved inward until it just touches its corresponding movable contact. The lock nut on the contact post should then be securely tightened.

After the driving contact has been adjusted, the power contacts should be set by adjusting the post mounted contacts so that the opening between them is in accordance with the values shown in TABLE Il.

After the power contacts have been properly set, they should be locked in place by tightening their respective lock nuts.

F. Electrical Calibration and Load Tests

CAUTION: Before operating alternator be sure that the condensers called for in TABLE III are properly applied as shown in Fig. 2 to prevent damage to contacts.

The following tests should be performed with the base top plate and shield still removed as it may be necessary to readjust the contacts after these tests have been performed.

The starting voltage of the alternator should be checked as explained on Sh. 3. If the alternator does not start within the limits specified in TABLE Il, the left-hand air gap should be closed slightly. After changing this air gap, the contact openings and driving contact compression should be rechecked to see that they still conform to the specified values.

u. s. & s.

D.C. + ..,-1 I

...I..

D.C.

- 7 -

COIL CONDENSER

~---------o---1P

2P

'------+-3P

TUNED ALTERNATOR TOP PLATE

U-5421

LOAD CONDENSER

•

• • • •

TEST OUTPUT TRANSFORMER

FIGURE 2 .... TEST CIRCUIT

The frequency should be set to the value shown in TABLE II. Slight ad­justments in frequency should be made by changing the number or size of the adjusting nuts (Ref. 62 and 65) at the top of the armature.

Each power contact should be checked for "on time", which should be not less than the values specified in TABLE II. This check can be made by using a Style PD-20 Code Meter, Pc. 291611, or its equivalent. (Instruction Pamphlet U-5486)

After the alternator has met the foregoing requirements, it should be given a load test of at least 10 minutes duration corresponding to the loads obtained in actual service. If such a test is not practical, the alternator should be given a test of at least 10 minutes duration in accordance with test circuit, Fig. 2, and load per TABLE Ill. During this test it should be noted that the contacts operate with only very slight sparking and that no undue flashes are apparent.

Following the load test, the alternator should be operated at no load for a period of twenty-four hours, and the load test repeated to make certain that there have been no undue changes during the breaking in process. After the no load test of twenty-four hours, it may be necessary to reset the frequency by means of the armature adjusting nuts.

After the foregoing tests have been completed, the terminal leads should be securely fastened to their respective terminal posts. Care should be taken when placing the driving coil condenser and coil lead on the driving contact post that the metal sleeves on these leads do not make contact with any part of the common relay frame. After the leads have been connected the shield, base and top plate should be assembled to the alternator mechanism.

MEGGER TEST

Before returni.ng the alternator to service, it should be checked for insu­lation breakdown between all termmal posts and the relay base using a 500 volt megger. Any points of voltage breakdown should be corrected.

Alternator Rated Piece No. Volts

212500 12

213750 10/12

215840 16

239060 16

275955 10

Test Alternator Volts Piece No. D.C.

212500 12 213750 12 215840 16 239060 12 275955 10

Frequency Cycles

Rated New

100 101

60 60

60 60

100 100

80 80

Rated

Perm. Magnet Grams

80-85

70-80

70-80

80-85

85-90

TABLE II

SHOP ADJUSTMENTS OF STYLE F-10 TUNED ALTERNATOR (PERMANENT MAGNETS ASSEMBLED)

Air Gaps Right Left Initial Cont. Driving Cont. Power Cont.

Min. Max. Spring Press. Compression Opening ± 0. 001 in. Min. Ounces± 1/2 ± 0. 001 in. Left Right

O. 030 in 0. 046 in.

9.5 0. 007 in. 0. 025 in. 0. 012 in. 0. 055 in.

0. 050 in. 0. 060 in.

9.5 0. 007 in. 0. 025 in. 0. 012 in. 0. 065 in.

0. 050 in. 0. 060 in.

9.5 0. 007 in. 0. 025 in. 0. 012 in. 0. 06b in.

0. 030 in. 0. 046 in.

9.5 0. 007 in. 0. 025 in. 0. 012 in. 0. 055 in. 0. 046 in. ..

0. 050 in. 0. 055 in. 9.5 0. 007 in. 0. 021 in. 0. 012 in.

TABLE III

LOAD TESTS PER FIG. 2 FOR STYLE F-10 TUNED ALTERNATOR

Coil Load Output Lamp Lamp Load

Coil Max. Cond. Start. MFDS Volts

7.0 5.0

7.0 5.0

7.0 8.0

7.0 5.0

7.0 5.0

Frequency Condenser Condenser Transf. Condenser Rating Connections Volts A. C. Cycles MF MF Pc. No. Connections (Watts) (Approximate) ± 5 Volts

100 7.0 7.0 213130 1L-3L 100 2L-5L 110 60 7.0 7.0 224923 1L-8L 100 2L-7L 110 60 7.0 7.0 264266 1L-6L 100 2L-5L 110

100 7.0 7.0 213130 1L-3L 100 1L-4L 110 80 7.0 0.94 275966 1L-6L 25 1L-6L 120

Min. Contact

"On Time"

26%

26%

26%

26%

22%

Amps. A.C. ±. 02 Amps.

0.90 0.90 0.90 0.90 0.20

c:: "(/]

~

w

co

c:: I

<:.,1 ,.p.. ts-' ~

PL 1

47

80

59 60

51

50~49 48 .

47

~26a 27

28' 25 b

44

48

50

70

72

47

11156"

~-llf--s I

I

PLATE W-16

UNION SWITCH & SIGNAL DIVISION OF WESTINGHOUSE AIR BRAKE COMPANY

CODED TRACK CIRCUIT CONTROL SYSTEM

STYLE "F-10" TUNED ALTERNATOR

Order by Plate, Piece, Reference and Abbreviated Description Given in Heavy Face Type Only

PIECE REF. I DESCRIPTION

212500 A STYLE "F-10" TUNED ALTERNATOR, for 12 Volt D. C. operation and

I tuned for 100 Cycles. . . . . . . . . . . . . . . . . . . . . . . . . .......... .

DWG. REF.

C-9358-7

213750 Aa STYLE "F-10" TUNED ALTERNATOR, for 10-12 Volt D. C. operation

215840

239060

275955

106296

106297

34065

108884

106316

239468

276589

106298

107010

276588

106769

106301

106302

44407

106299

Ab

Ad

Ae

2

3

4

5

5a

5b

5c

6

6a

6b

7

14

14a

15

and tuned for 60 Cycles. . . . . . . . . . . . . . . . . . . .............. . C-9358-7

STYLE "F-10" TUNED ALTERNATOR, for 16 Volt D. C. operation and tuned for 60 Cycles .................................... . C-9358-7

STYLE "F-10" TUNED ALTERNATOR, for 16 Volt D. C. operation and tuned for 100 Cycles ................................... . C-9358-7

STYLE "F-10" TUNED ALTERNATOR, for 10 Volt D. C. operation and tuned for 80 Cycles .................................... . C-9358-7

CORE COMPLETE ......•.•............................ 8101-397

POLE PIECE ............... . 8250-117

NUT ..................... . 8109-228

COIL COMPLETE, 1-0hm, for Ref. A. . . . . . . . . . . . . . . . • . . . . . . . . 8133-523

COIL COMPLETE, 2. 2-0hms for Refs. Aa and Ab ....•.•.•••..... ·I 8133-523

COIL COMPLETE, 1. 5-0hms, for Ref. Ad. . . . . . . . . . . . . . . . . . . . . . 8133-523

COIL COMPLETE, 5-0hms, for Ref. Ae. . . . • • . • . . . . . . . . . . . . . . . . 8133-523 i

BACK STRAP for Refs. A and Ad ........................... · I 8162-269

BACK STRAP for Refs. Aa and Ab. . . . . • . . . . . . . • . . . . . . . . . . . . . 8162-269

BACK STRAP for Ref. Ae. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8162-269

SPACER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7828-415

STUD with Nut, Washer and Lock Washer (Inc. 1-14a, 2-15, 1-16 and 1-17)

STUD ONLY, for Ref.14 ...... . 8114-940

NUT ................... . 8265-70

16 LOCK WASHER, 3/8" S. (C. N. 47672)(Tin Pl.)

17 WASHER .......................................... . 7828-184

18 TERMINAL BOARD arranged for three terminal posts (Used previous to 12-2-43, not shown) ..................................... 9968-1246

7-1-52

PLATE W-16 -(CONTINUED)

UNION SWITCH 8: SIGNAL DIVISION OF WESTINGHOUSE AIR BRAKE COMPANY

PIECE REF. I DESCRIPTION DWG. REF.

264971 18a TERMINAL BOARD arranged for three terminal posts (Used since 12-2-43, as shown) ........ · ......•.................... C-9387-6

106300 19 TERMINAL BOARD arranged for two terminal posts (Used previous to 12-2-43, not shown) ......•.........•........... , ..... . 9968-1246

242467 19a TERMINAL BOARD arranged for two terminal posts (Used since 12-2-43, as shown) ..•.•...........................•. 9968-1331

106303 20 CONTACT ARM (Used previous to 9-3-46) ................... . 12748-10

264959 20a CONTACT ARM (Used since 9-3-46) ............... , ....... . 12748-10

221114 21 CONTACT POST with Tungsten Tip 8094-2369

106317 22 CONTACT POST with Elkonium Tip 8094-2369

23 LOCK WASHER, No. 6 Ph. Bz. (Int. Teeth)(C. N. 47708)(N. P.)

1505 24 NUT ................... , ........................ . 8109-11

25 TERMINAL POST with Nuts, Washers and Lock Washer (Inc. l-25a, 3-26, 3-27 and 1-28) Used with Terminal Boards Refs.18 and 19 . . . . . . . . . 12451-

213169 25a

268825 25b

TERMINAL POST ONLY (No.10-30 threads) ..........•........

TERMINAL POST with Nuts, Washers and Lock Washer (Inc.1-25c, 3-26a, 2-27 and 1-28) Used with Terminal Boards Refs.18a and 19a ...

8094-2392

12451-396

264968 25c TERMINAL POST ONLY (No.10-32 threads) ................•.• ' 8094-530

73488 26

30086 26a

53 27

28

29

NUT (No. 10-30 tap) For Ref. 25 .......•.•..........•....•.

NUT (No. 10-32 tap) For Ref. 25b ... , .............•........

WASHER .............••...........................

LOCK WASHER,No.10 Ph.Bz. (Int. Teeth)(C.N.47710)(N.P.)

STUD Ref. 29a with two Nuts Ref. 30, two 1/ 4"Ph. Bz. Lock Washers (Int. Teeth)(C.N.47792)(N.P.) and two Washers Ref.31. For use with Terminal Boards Refs. 18 and 19.

212580 29a STUD ONLY for Refs. 29 and 29b ........................•.

33217

29b STUD Ref. 29a with two Nuts Ref. 30 and two 1/ 4"Ph. Bz. Lock Washers (Int. Teeth)(C. N. 47792)(N. P.) For use with Terminal Boards Refs. 18a and 19a.

30 NUT .........•.....•.....• , ......•.........•.......

50252 31 WASHER for Ref.29 (Not shown) ...•.•...........•....•....

212579 32 SPACER. Used with Terminal Boards Refs.18 and 19 ...•........

223474 32a SPACER. As shown. Used with Terminal Boards Refs.18a and 19a

33 SCREW Ref. 33a with Washer Ref. 27 and No. 10 Ph. Bz. Lock Washer (Int. Teeth)(C. N. 47710)(N. P.) Used previous to 8-23-46)

10-28-52

8265-111

8265-111

7828-5

8098-1097

8265-114

7828-184

8350-856

C-9387-5

PIECE

135060

264972

106304

106305

' 106306

106321

i 212653

265005

212658

264973

213690

106360

197182

197183

106309

33872

106310

164014

130593

69705

29103

29102

29101

PLATE W-16 -\CONTINUED)

UNION SWITCH & SIGNAL DIVISION OF WESTINGHOUSE AIR BRAKE COMPANY

REF. I DESCRIPTION DWG. REF.

33a

33b

33c

34

35

36

37

38

38a

39

39a

40

40a

41

42

43

44

45

46

47

47a

48

49

50

51

52

j SCREW ONLY (No. 10-30 threads) Used previous to 8-23-46. . . . . . . . . 8098-1147 !

: SCREW Ref. 33c with Washer Ref. 27 and No. 10 Ph. Bz. Lock Washer (Int. I Teeth)(C.N.47710)(N.P.) Used since 8-23-46)

SCREW ONLY (No. 10-32 threads) Used since 8-23;46. . . . . . . . . . . . . 8098-51

SUPPORTING SPRING .......••• , .•.•.•...•.•.. ; • . . . . . . . 8735-910

INSULATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8750-2921

INSULATION. . . . . . • . . • . . . . . . • • • • . . . . . . . . • . • . . . • . . . . . . 8750-2921

CLAMPING PLATE COMPLETE. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9999-1523

SCREW (No. 10-30 threads) witll No.10 Ph. Bz. Lock Washer (Int. Teeth) (C. N. 47710)(N. P. )(Used previous to 8-23-46). . . . . . . . . . . . . . . . . . . 8098-476

SCREW (No. 10-30 threads) with No.10 Ph. Bz. Lock Washer (Int. Teeth) (C. N. 47710)(N. P. )(Used since 8-23-46). . . . . . . . . . . . . . . . . . . . . . . 8098-1482

SCREW (No. 10-30 threads) with No. 10 Ph. Bz. Lock Washer (Int. Teeth) (C. N. 47710)(N. P. )(Used previous to 8-23-46). . . • . . . . . . . . . . . . . . . 8098-1147

SCREW (No. 10-32 threads) with No.10 Ph. Bz. Lock Washer (Int. Teeth) (C. N. 47710)(N. P. )(Used since 8-23-46) .......... , ... , . . . . . . . . 8098-51

SCREW Ref. 40a (No.10-32 threads) with No.10-32 Hex. Nut (C. N. 48172) (Tin Pl.)

I SCREW ONLY (No.10-32 threads) ........................... I 8098-51

BASE PLATE COMPLETE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12538-205

PERMANENT MAGNET. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12586-11

CLAMP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10914-736

TOP PLATE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-9453-2

GASKET. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8078-76

TERMINAL POST LOCK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8750-2922

TERMINAL POST with Nuts and Washers (Inc.1-47a, 1-48, 1-49,2-50, 2-51 and 1-70). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12451-241

TERMINAL POST ONLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8094-1192

WASHER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7828-287

NUT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8109-194

WASHER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7828-139

NUT. . . . . . . . • . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . . . 8109-193

STUD with Nuts and Washers (Inc. 1-52a, 1-30, 2-53, 1-70 and one 1/4" Ph. Bz. Lock Washer (Int. Teeth)(C. N. 47792)(N. P.)

7-1-52

PLATE W-16 -(CONTINUED)

UNION SWITCH & SIGNAL DIVISION OF WESTINGHOUSE AIR BRAKE COMPANY

PIECE REF. I DESCRIPTION DWG.REF.

,~~~~-1---~1~--~~~~~~~~~~~~----~~--~---~~~~~~~-1~

106313

84

212604

106323

410442

48854

186398

106329

52a

53

54

55

55a

56

59

60

61

STUD ONLY. . . • . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8114-941

WASHER .............. ·. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7828-6

GLASS CASE. . . . . . . . . . • . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8163-96

MACHINE SCREW, No.10-30 x 1" Flat Hd. S. (C. N. 52085)(Tin Pl. )(Used previous to 8-23-46)

MACHINE SCREW, No.10-32 x 1" Flat Hd. S. (C. N. 521013)(Tin Pl. )(Used since 8-23-46)

BASE COMPLETE ....•...................... , . . . . . . . . . 10937-7

MACHINE SCREW, No.14-24 x 1/2"Fil. Hd. Br. (C.N.51340)(N. P.) with Nut Ref. 60

NUT

MACHINE SCREW, No.14-24 x 3/4"Fil. Hd. Br. (C. N. 51342)(N.'P.) with Washer Ref. 50, 1/4"Ph. Bz. Lock Washer (Int. Teeth)(C. N. 47792)(N. P.) and Nut Ref. 62 (Used previous to 6-29-43)

6 la TERMINAL POST with Nut, Terminal Post Lock and Insulated Nut. As

6lb

62

63

64

shown. (Used since 6-29-43)(Inc.1-6lb, 1-70, 1-78 and 1-79). . • . . . . . . 12451-

TERMINAL POST ONLY ................................ .

NUT for Refs. 61 and 63 ................................. .

MACHINE SCREW, No. 14-24 x 5/8"Fil. Hd. Br. (C. N. 51341)(N. P.) with Washer Ref. 50, Nut Ref. 62, and 1/ 4"Ph. Bz. Lock Washer (Int. Teeth) (C. N. 47792)(N. P.)

I COIL RETAINING SPRING .......•...•..........•......... j

8094-797

8109-476

8735-911

31670 65 i NUT .....•...•..................................... 1 8109-218

106359 66 NAME PLATE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8225-531 I

67 MACHINE SCREW, No. 6-40 x 1/4" Rd. Hd. Br. (C.N. 51625)(N. P.)

106408 68 NUT LOCK .......•............................. , . . . . 8486-429

69 MACHINE SCREW, No. 14-24 x 3/8"Rd. Hd. S. ( C. N. 52580)(Tin Pl.) with 1/4"Ph. Bz. Lock Washer (Int. Teeth)(C. N. 47792) To replace shipping screw Ref. 71 when Alternator is placed in service (Not shown)

72948 70 NUT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8109-383

71 SHIPPING SCREW with Washer Ref.27 and No.10-32 Hex.Nut (C.N.48172) ( Tin Pl.) used for shipping only

106319 71a SHIPPING SCREW ONLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8098-1445

280854 72 TERMINAL POST with Nuts and Washers (Inc. l-47a, 1-48, 1-49, 3-50, 2-51 and 1-70). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12451-360

73 TERMINAL POST with Nuts, Washers and Lock Washer (Inc.1-73a, 1-48, 1-49, 2-50, 2-51, 1-70, 1-74, 1-75 and one No.10 Ph. Bz. Lock Washer (Int. Teeth)(C.N.47710)(N.P.) .......•.......•................. 12451-

7-1-52

PIECE REF.

189159 73a

189165 74

159694 75

142777 77

29063 78

105713 79

170656 80

276590 82

289376 82a

289377 82b

276591 83

289374 83a

289375 83b

276592 84

276593 85

86

278944 87

37661 88

PLATE W-16 -(CONTINUED)

UNION SWITCH & SIGNAL DIVISION OF WESTINGHOUSE AIR BRAKE COMPANY

DESCRIPTION DWG. REF.

i

TERMINAL POST ONLY, for Ref. 73. . . . . . . . . . . . . . . . . . . . . . . . 8094-982

SCREW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8098-403

LOCK WASHER. . . . . . . . . . . . . . . . . . . • . . . . . . . . . . . . . . . . . . 8486-379

TAG (Orders should specify marking desired). . . . . . . . . . . . . . . . . . 8988-75

TERMINAL POST LOCK ................................. I 8486-111

INS. NUT. . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . . . . . . . . . . . 12770-1

CONNECTOR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8064-305

ARMATURE COMPLETE with removable contacts. For 80 Cycle Alternator.... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8157-516

ARMATURE COMPLETE with removable contacts. For 60 Cycle Alternator.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8157-516

ARMATURE COMPLETE with removable contacts. For 100 Cycle Alternator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8157-516

ARMATURE ONLY, for Ref. 82. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8157-515

ARMATURE ONLY, for Ref. 82a. . . . . . . . . . . . . . . . . . . . . . . . . . . 8157-530

ARMATURE ONLY, for Ref. 82b. . . . . . . . . . . . . . . . . . . . . . . . . . . 8157-531

CONTACT SPRING ASSEMBLY COMPLETE with two Tungsten and one Elkonium contact tips. . . . . . . • . . . . . . . . . . . . . . . . . . . . . . . . . . . 8385-2880

CONTACT SPRING ASSEMBLY COMPLETE with two Tungsten Contact tips. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8385-2881

MACHINE SCREW, No. 6-40 x 7/16" Fil. Hd. S. (C. N. 52394)(Tin Pl.) with No. 6 Plain S. Lock Washer (C. N. 47662)(Tin Pl.)

NUT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8109-307

ANCHOR WASHER. Used with Screw Ref. 55a (Not shown). . . . . . . . . . 7828-168

7-1-52