- ~SERVICE SPECIFICATION SU-4549 ~

Transcription

1 ,i -' WRBCC - SERVICE SPECIFICATION SU-4549 STYLE PL-59 RELAY GROUPS FOR AUTOMATIC TRAIN CONTROL ***************** This specification covers shop adjustment and testing of the Style PL-59 Relay Groups as used in automatic train control. It is to be used when relay groups are shopped as the result of routine locomotive equipment testing, or periodic shopping. A. MECHANICAL INSPECTION OF INDIVIDUAL RELAYS. 1. The core of each relay within the group must fit tightly and squarely against the backstrap so that the axis of the core is parallel to the edges of the backs trap. 2. The copper washers (when used) and the relay coil should be held firmly on the core. 3. Soldered connections should be tight and all internal wiring should be securely supported in such a way that operation of the relays is not impeded. 4. Burned or pitted contacts should be smoothed with a contact cleaner (can be purchased from U.S. & S. as UJ39892) unless burned enough to require replacement. (Note - Mere discoloration or blackening of silver contacts does not indicate a need for cleaning). Contacts may be cleaned of dust by suction cleaning and/ or by a mild air blast. PRINTED IN U.S.A. C WESTINGHOUSE AIR BRAKE COMPANY SIGNAL & COMMUNICATIONS DIVISION Swissvale Post Office, Pittsburgh, Pa July, 1967

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3 ..., 5. All screws should be drawn down tightly, particularly those holding the contact stacks. 6. The armature should be inspected for the following: Rivets holding the armature insulation plate to the armature should be tight. The arm:1.ture should rest squarely on the backstrap, and the rear edge of the insulation should be as nearly parallel to the surface of the backstrap as possible. The chromium plating should be in good condition, particularly on the hinge surfaces, with no tendency to flake or peel. ANVIL PC DWG. A2586- SH. 16 HIT LIGHTLY WITH HAMMER SWED GE PC DWG. A2586- SH. 95 SQUARE ARMATURE The armature stroke, measured at the rear edge of the insulation, should agree with the value given in the calibration table for each relay in the group. The air gap between the armature and core should agree w.i.th the value given Figure A in the calibration table for each relay in the group. It may be adjusted by bending the armature. (This should be necessary only when replacing arm.1.tures.) The method of bending the armature is shown in Figure A, together with references for the swedge and anvil to be used. Turn the armature over if necessary to bend in oposite direction. After bending arm:tture, check to insure that stroke is still correct. The armature stop should be adjusted so that the armature moves freely, with in. to in. end play in the axis of the hinge. With the armature in the de-energized position it should have vertical play of in. to in. at right angles to the hinge and a horizontal clearance of in. to in. between it and the back stop. B. CLEANING Each relay should have its armature removed and thoroughly cleaned, together with the pole face and backstrap ends, by the use of carbon tetrachloride (fire extinguisher grade), to remove all trace of dirt and sticky material. Wipe dry with chamois or clean lintless cloth. During adjustment, e:,.,_-treme care should be taken to insure that no foreign matter is carried to the assembly by tools or spacers. When the relays are assembled in the case, care should be taken to insure that all dirt or other foreign matter is removed from inside the case. SU-4549, p. 2

4 C. CONTACT ADJUSTMENT 1. General The use of a suitable gram gauge is recommended for measuring spring pressure (can be purchased from U.S. & S. as UJ62103). Measure contact pressure (initial tension of the contact spring against its stop) by applying the tip of the gram gauge just back of the contact buttons, with the contact spring not touching the heel spring. Measure heel spring pressure by applying the gauge just over the point of contact with the armature (de-energized), with all contact springs in normal position; but with any higher heel springs in the same stack slightly lifted. All contacts should be aligned so that they meet squarely. It is not required that all like contacts open or close simultaneously. Contact spril1gs must be free from kinks or sharp bends. Before making any adjustment, a preliminary check should be made to insure that the armature stroke has been correctly adjusted, that each lower heel spring has definite contact with the armature insulation, and that each upper heel, if any, has definite contact with the lower heel spring. Following this, all back contacts should be adjusted, then all heel springs, then all front contacts, as described in parts 2 and 3 of this section. Contact adjustment includes regulating both contact pressure and contact opening. To adjust contact pressure and heel spring pressure, the spring members may be bent slightly close to the stack insulating spacers, but a minimum of such bending should be done. To adjust contact opening, bend only the contact stop Contact Pressures Back contact springs should be adjusted to exert a pressure of 10 to 15 grams against the stop. Each heel spring should be adjusted to exert a pressure of 5 to 10 grams on the armature or on the heel below, in addition to compressing its back contact fully, with armature de-energized. Front contact springs should be adjusted to exert a pressure of 10 to 15 grams against the stop. 3. Contact Openings Measure the opening between each heel contact and its front or its back contact. Front contact openings are measured with the armature in de-energized position and back contact openings with it in fully energized position. The "bridging opening" is defined as the front contact opening measured with the armature near midstroke when the heel and back contacts are just touching. The values of front contact opening, back contact opening, and bridging opening for each individual relay are given in the Calibration Table. SU-4549, p. 3

5 Mv"" D. ELECTRICAL INSPECTION OF INDIVIDUAL RELAYS - (See Table of Group Components and Calibration Table.) 1., Resistance Each winding should have the resistance specified in the Calibration Table. A value appreciably different may indicate that a short circuit or other defect has occurred. 2. Insulation Each assembled relay should be given a megger test between each contact terminal or coil lead and the backstrap and should show at least 10 megohms at each point. 3. Calibration The Calibration Table shows the correct values of calibration for each individual relay in the group. E. ELECTRICAL INSPECTION OF CAPACITORS Certain PL-59 Relay Groups use electrolytic capacitors, which are mounted on the rear of the base. These capacitors have a life limited to several years, the number depending upon the condition of temperature and voltage under which they are used. It will be necessary, therefore, to remove and replace these capacitors at certain intervals, probably not oftener than every three or four years. The condition of the capacitors is indicated by the time measurements made in the operating tests outlined in Section F. If the time measured on the operating tests is not within the specified limits, the individual capacitors should be removed and their capacitance measured. Any on which the capacitance is found to be outside the limits given in the table below should be replaced. The capacitance should be measured with a capacitance bridge, but if a bridge is not available which will measure the high capacitance units, these may be measured by the impedance method shown in Figure B. 110 v. 60"' V A.C.VOLTMETER CAPACITOR UNDER TEST ' A A.C. AMMETER Figure B. Impedance Method Adjust voltage so "V" reads exactly 2.65 volts. Current read on "A" multiplied by 1000 equals the capacitance in microfarads. Capacitor Pc. No. Rated Mfd. Rated v. Capacitance Max. Min. UN UN SU-4549, p. 4

6 MOUNTING BASE, PC f',., C16655-SH.15, SUPPORTED I..._... f VERTICALLY. (VIEW FROM REAR) _ I :J I O I I I j I e I I 3:V.O.C. SWITCH "A" SWITCH \ V. D.C. VOLTMETER Figure 1. Circuit for Testing PL-59 Relay Group UN Cl 7045-Sh. 1 F. ELECTRICAL INSPECTION OF COMPLETE RELAY GROUPS Each group should be given an operating test as follows: 1. Group UN Dwg. Cl 7045-Sh. 1 The completely wired relay group should be placed on a mounting base, connected as shown in Figure 1, and tested as follows: a. With 32 volts d-c. applied and with both switches open, both relays should be released and the voltmeter should read zero. b. Close switch "A" to the left and note that the upper relay "A", only, picks up and that the voltmeter reads 32 volts. c. Close switch "B" to the right and note that the lower relay "B" does not pick up.. d. Close switch "A" to the right and note that relay "A" releases, that relay "B" picks up, and that the voltmeter reads 32 volts. e. Close switch "B" to the left and then open switch "A". Note that relay "B" remains picked up and that the voltmeter still reads 32 volts. pick up. f. Close switch "A" to the left and note that relay "A" does not g. Open switch "B" and note that relay "B" releases and that relay "A" picks up. SU-4549, p. 5

7 """' """' WABCO... r,...,, c-1_6_6_55--s_h_._15_,_s_u_p_p_o_r_t_e_d MOUNTING BASE, PC i \ VERTICALLY. (VIEW FROM REAR) + I 32V.O.C. I 50 OHM 20 WATT LAMP PC SW. 11 A 11 DPST If---, ' '-1'.. x C) i sw."e" DPDT 11 ov. 60'""..J I :...J ---- CYCLE COUNTER Figure 2. Circuit for Testing PL-59 Relay Group UN and UN C Sh Groups UN and UN Dwg. C17045-Sh. 2 The completely wired relay group should be placed on a mounting base, connected as shown in Figure 2, and tested as follows: a. With 32 volts d-c. applied and with switch "A" closed and switch "B" closed to the left, both relays "B" (upper) and "BP 11 (lower) should pick up, the lamp should be lighted and the L-10 relay should be released. b. Open switch "A". Both relays "B" and "BP" should release, the L-10 relay should pick up and the lamp should be extinguished. The time read on the cycle counter should be between one and one-and-one-half seconds. c. Close switch "B" to the right. Both relays "B" and "BP" should pick up, the L-10 relay should release and the lamp should be lighted. For UN313005, the time read on the cycle counter should be between one and one-and-one-half seconds. For UN328651, this time should be approximately 0.2 seconds. SU-4549, p. 6

8 """" MOUNTING BASE, PC r""'- _...,... f C SH.15, SUPPORTED f _/'... T VERTICALLY. (VIEW FROM REAR) + I I I 32V.-15W. LAMP PC V.O.C. SIMPSON ANALYZER r-, l-_+j SWITCHA" DPST rr----::, CYCLE COUNTER I ij C)! Ix I 110V. 60"' --L J--- Figure 3. Circuit for Testing PL-59 Relay Group UN Cl 7045-Sh Group UN Dwg. Cl 7045-Sh. 3 The completely wired----relay group should be placed on a mounting base, connected as shown in Figure 3, and tested as follows: a. With 32 volts d-c. applied and with switch "A" open, put analyzer on resistance scale and measure resistance. This value should be 1000 ohms ±10%. b. Put analyzer on 50-volt d-c. scale and close switch "A". Both relays "B" (upper) and "BP" (lower) should pick up, the lamp should be lighted and the analyzer should read 32 volts. c. Open switch "A". Both relays should release, the lamp should be extinguished and the analyzer should read zero. The-time measured on the cycle counter should be between one and one-and-one-half seconds. SU-4549, p. 7

9 WRBCC MOUNTING BASE, PC ,-... _/ C16655-SH. 15, SUPPORTED (... _... T VERTICALLY. (VIEW FROM REAR) I V.D.C. + l I o o o I I '"'....,,,, L-:....:...J... CYCLE COUNTER SWITCH 11 A" DPDT SWITCH "B" SPOT SWITCH 11 C 11 DPDT SWITCH "o" SPOT 110V. so- Figure 4. Circuit for Testing PL-59 Relay Group UN Cl 7045-Sh Group UN Dwg. Cl 7045-Sh. 1 The completely wired relay group should be placed on a mounting base, connected as shown in Figure 4, and tested as follows: a. With switches "B" and "C" open and switches "A'' and "D" closed to the left, apply 28 volts d-c. to the terminals indicated. The voltmeter should read 2 8 volts. b. Close switch "A" to the right and switch "B" to the left. Close switch "C" to the left; both relays should pick up and the voltmeter should read zero. Quickly move switch "C" to the right; the LP (lower) relay should release and the voltmeter should read 28 volts. c. Move switch "B" to the right; the RP (upper) relay should release and the voltmeter should read zero. Close switch "C" to the left and both relays should pick up. Quickly move switch "C" to the right; both relays should remain picked up and the voltmeter should read 28 volts. d. Move switch "C" to the left and switch "D" to the right. Apply 110 volts, 60 cycles, to the cycle counter terminals. Open switch "C" and read the release time of the LP relay on the cycle counter. This release time should not be less than 0.25 seconds. e. Close switch "C" to the left and move switch "B" to the left. Open switch "C" and read the release time of the RP relay on the cycle counter. This release time should not be less than 0.25 seconds. SU-4549, p. 8

10 r MOUNTING BASE, UN / Cl6655-SH.15, SUPPORTED I r... '-""'.,.- T vert,calt.:v (v1ew FROM REAR) I!. I + I O O o! I 50 V. D.C. VOLTMETER 32V. D.C. + SWITCH A" SPOT WABCO... l 0, I o o o SWITCH s SP OT,,,, Figure 5. Circuit for Testing PL-59 Relay Group UN Cl 7045-Sh Group UN Dwg. Cl 7045-Sh. 1 The completely wired relay group should be placed on a mounting base, connected as shown in Figure 5 and tested as follows: a. With 32 volts d-c. applied and both switches open, both relays should be released and the voltmeter should read zero. b. Close switch "A" to the left and note that relay "A'"', only, picks up and that the voltmeter still reads zero. 32 volts. c. Close switch "B" to the left and note that the voltmeter reads d. Close switch "A" to the right and note that relay "A" releases, relay "B" picks up and the voltmeter reads zero. reads 32 volts. e. Close switch "B" to the right and note that the voltmeter SU-4549, p. 9

11 - } D.C. VOLTAGE EITHER 58V. + OR 70V. SWITCH "B' SPST SWITCH A SPOT 75V.-15 WATT UJ LAMP Figure 6. Circuit for Testing PL-59 Relay Group UN Cl 7045-Sh Group UN Dwg. Cl 7045-Sh. 4 The completely wired relay group should be placed on a mounting base, connected as shown in Figure 6, and tested as follows: a. With the d-c. supply voltage set at 70 volts and both switches open, both relays should be released and the voltmeter should read zero. 70 volts. b. Close switch "A" to the left and the voltmeter should read c. Close switch "B"; relay CR should pick up and the voltmeter should read zero. d. Close switch "A" to the right and note that the lamp is either lighted steadily or flashing on and off. Adjust the potentiometer, which is mounted in the lower left hand corner of the relay group, until the lamp flashes on and off at a rate of between thirty and forty times a minute. The potentiometer shaft can be reached for adjustment by removing hex headed screw, UM137935, from the back of the relay base and inserting a screw driver into the tapped hole. Reduce the d-c. supply voltage to 58 volts and note that the lamp continues to flash but not necessarily at the same rate. If the lamp does not flash at this voltage, readjust the potentiometer until it does flash. Then change the d-c. supply voltage to 70 volts and check that the rate of flashing is still between thirty and forty times a minute. When adjusting the potentiometer, note that considerable force is required to turn the potentiometer shaft. If the shaft turns easily, the shaft lock nut should be tightened. SU-4549, p. 10

12 :' MOUNTING BASE, UN I C16655-SH. 15, SUPPORTED VERTICALLY (VIEW FROM REAR) + 32V. D.C. 2H SWITCH "A DPDT SWITCH s SPST SWITCH "c' DPDT SWITCH o DPST Relays manufactured since late 1966 have the 2H terminal inside of the relay connected to relay "RP or AP" at terminal color code R. G. and the 3H terminal inside of the relay connected to relay ' LP or BP' at terminal color code G.W. Figure 7. Circuit for Testing PL-59 Relay Group UN Cl 7045-Sh Group UN Dwg. Cl 7045-Sh. 1 The completely wired relay group should be placed on a mounting base, connected as shown in Figure 7, and tested as follows: a. With switches "B", "C" and 'D" open and switch "A" closed to the left, apply 32 volts d-c. to the terminals indicated. The voltmeters should read 32 volts. b. Close switch "A'' to tlre right. The voltmeter should read zero. Close switch ''B" and the "RP or AP" (upper) relay should pick up. Open switch "B" and the ''RP or AP" relay should remain picked up and the voltmeters should still read zero. Close switch "C'' to the left and the voltmeters should read 32 volts. c. Close switch "C" to the right, the "RP or AP" relay should remain picked up and the voltmeters should read zero. Close switch "B" and the ''LP or BP" (lower) relay should pick up. Open switch '"B" and the 'LP or BP'' relay should remain picked up and the voltmeters should still read zero. Close switch "D" and voltmeter #1 should read 32 volts and voltmeter #2 should read zero. d. Move switch "C" to the left. The "LP or BP" relay should release and the voltmeters should read 32 volts. e. Move switch "A'' to the left. The ' RP or AP" relay should release and the voltmeters should read 32 volts. SU-4549, p. 11

13 SWITCH"C" O P.D.T. SWITCH"D" S.P.S.T. SWITCH"E" SP.O.T. 4H / SWITCH"F" 0.P.D.T. IIOV. so- CYCLE COUNTER Figure 8. Circuit for Testing PL-59 Relay Group UN Cl 7045-Sh Group UN Dwg. Cl 7045-Sh. 1 The completely wired relay group should be placed on a mounting base, connected as shown in Figure 8, and tested as follows: a. With switches "A" and "C" closed to the left, switch "F" closed to the right and switches "B", "D" and "E" open, apply 28 volts d-c.- to the terminals indicated. The voltmeter should read 28 volts. b. Close switch "A" to the right and switch "E" to the left. The voltmeter should read zero. Close switch "D" and bath relays should pick up. Open switch "D" and the LP (lower) relay should release. The voltmeter should still read zero. Close switch "B" to the left and the voltmeter should read 28 volts. c. Move switch "E" to the right, the RP (upper) relay should release and the voltmeter should read zero. Close switch "D" and both relays should pick up. Open switch "D" and both relays should remain picked up. The voltmeter should read zero. Close switch "B'' to the right and the voltmeter should read 28 volts. ct. Move switch "C" to the right and apply 110 volts, 60 cycles to the cycle counter terminals. Quickly move switch "F" to the left and read the release time of the LP relay on the cycle counter. This release time should not be less than seconds. e. Move switch "E" to the left, quickly move switch "F" to the right and move switch "B" to the left. Open switch "F 1 ; and read the release time of the RP relay on the cycle counter. This release time should not be less than 0.25 seconds. SU-4549, p. 12

14 '"V".A,.,.'"V" MOUNTING BASE, UN Cl6655-SH. 15 SUPPORTED VERTICALLY (VIEW FROM REAR) V. D.C. SWITCH "A' S.PS.T. SWITCH''a" D.P.S.I SWITCH"c" 0.PS.T. SWITCH "o" D.PO.T. SWITCH "E" DP.D.T. SWITCH"F" D.P.D.T. 50 VOLT D.C. VOLTMETER Figure 9. Circuit for Testing PL-59 Relay Group UN Cl 7045-Sh Group UN Dwg. Cl 7045-Sh. 1 The completely wired relay group should be placed on a mounting base, connected as shown in Figure 9, and tested as follows: a. With switches "A", "B", "C" and "D" open and switches "E" and "F" closed to the left, apply 32 volts d-c. to the terminals indicated. Both relays should remain released and the voltmeter should read 32 volts. b. Close switch "B" and close switch "D" to the left. Close switch "A" for one second. The RP (upper) relay should pick up and remain picked up and the voltmeter should read zero. Move switch "E" to the right and the voltmeter should read 32 volts. c. Close switch "C" and then close switch "A" for one second. The LP (lower) relay should pick up and both relays should remain picked up. The voltmeter should read zero. Move switches "D 11 and "F" to the right and the voltmeter should read 32 volts. d. Open switch "C ", the LP relay should release and the voltmeter should read zero. Move switches "D" and "F" to the left and the voltmeter should read 32 volts. e. Open switch "B", the RP relay should release and the voltmeter should read zero. Move switch "E" to the left and the voltmeter should read 32 volts. SU-4549, p. 13

15 TABLE OF GROUP COMPONENTS ' Figure Group Piece No. Relay Pc. No. Upper Lower Capacitor Pc. No. (Rear of Base) Upper Lower Resistor (Rear of Base) Pc. No. Ohms 1 UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN UN CALIBRATION TABLE INDMDUAL RELAYS IN GROUPS (Pc. No. of each relay is stamped on the top face of the backstrap) Relay Pc. No. Coil Re sis. ohms Air Gap in. Arm stroke Contact Onings Max. Min. Max. Min. For B Bridging Full stroke Droe-Awa;r in. in. ±.005 Volts Amps. Volts Amps D. A. Retardation Min. Max. Volts-Sec. Volt.;---- c, UN UN UN UN UN UN UN UN UN UN UN / / , / Min Min (Rear Coil) (Front Coil) Min..010 Min , Max Max Min (Either Coil) , Min.010 Min ,059, Min Min..010 Min, ,020 Min ,025 Min SU-4549, p. 14

16 PARTS LIST FIG. & INDEX PART DESCRIPTION 10-A UN B UN C UN D UN E UN F UN G UN H UN I UN J UN * UN a* UN b* UN c* UN * For details see Figure 12. Style "PL-59" Acknowledging or Directional Relay Group, Refer to View W of Fig. 11 for Base Arrangement Style "PL-59" Bell Control Relay Group, Refer to View X of Fig. 11 for Base Arrangement Style "PL-59" Bell Control Relay Group, Refer to View X of Fig. 11 for Base Arrangement Style "PL-59" Magnet Control Relay Group, Refer to View Y of Fig. 11 for Base Arrangement Style "PL-59" Acknowledging or Directional Relay Group, Refer to View W of Fig. 11 for Base Arrangement Style "PL-59" Acknowledging or Directional Relay Group, Refer to View W of Fig. 11 for Base Arrangement Style "PL-59" Bell Control Relay Group, Refer to View Z of Fig. 11 for Base. Arrangement Style "PL-59" Acknowledging or Directional Relay Group, Refer to View W of Fig. 11 for Base Arrangement Style "PL-59" Acknowledging or Directional Relay Group, Refer to View W of Fig. 11 for Base Arrangement Style "PL-59" Acknowledging or Directional Relay Group, Refer to View W of Fig. 11 for Base Arrangement 3-Way Style "L" Relay Complete, with lf (Elk) - lb-lfb Contacts, 650 Ohms Resistance (For Ref. A) 2-Way Style "L" Relay Complete, with 2F Contacts, 0.60 Ohm Resistance (For Refs. Band D) 2-Way Style "L" Relay Complete, with 2F Contacts, 2 Ohms Resistance (For Ref. C) 3-Way Style "L" Relay Complete, with 2F- 2FB Contacts, 380/380 Ohms Resistance (For Refs. E and I) SU-4549, p. 15

17 A To J INCLUSIVE Figure 10. Style PL-59 Relays SU-4549, p. 16

18 "V",A,',/' PARTS LIST FIG. & INDEX PART DESCRIPTION 10-2d* -2e* -2f* UN UN UN * UN a* -3b* -3c* -3d* -3e* -3f* UN UN UN UN UN UN UJ UA UM UM UJ UM UM UM Way Style "L" Relay Complete, with 3F Contacts, 650 Ohms Resistance (For Ref. F) 2-Way Style "L" Relay Complete, with 2FB Contacts, 2250 Ohms Resistance (For Ref. G) 3-Way Style "L" Relay Complete, with 2F- 2FB Contacts, 380/380 Ohms Resistance (For Refs. Hand J) 3-Way Style "L" Relay Complete, with 2F- 2FB Contacts, 600/900 Ohms Resistance (For Ref. A) 3-Way Style "L" Relay Complete, with 2BlFB Contacts, 1200 Ohms Resistance (For Refs. B and C) 3-Way Style "L" Relay Complete, with 2FlFB Contacts, 1200 Ohms Resistance (For Ref. D) 3-Way Style "L" Relay Complete, with 2F- 2FB Contacts, 380/380 Ohms Resistance (For Refs. E and I) 3-Way Style "L" Relay Complete, with 3F Contacts, 650 Ohms Resistance (For Ref. F) 2-Way Style "L" Relay Complete, with 2B (Elk) Contacts, 2250 Ohms Resistance (For Ref. G) 3-Way Style "L" Relay Complete, with 2F- 2FB Contacts, 380/380 Ohms Resistance (For Refs. H and J) Seal Seal Wire (Orders should specify length desired) Nut Handle Rubber Washer Sleeve Nut Tag (Orders should specify marking desired) *For details see Figure 12. SU-4549, p. 17

19 ..., PARTS LIST FIG. & INDEX PART DESCRIPTION UJ UJ78335 UJ47397 UJ52141 UM UM Machine Screw, No x 3/16 ", Rd. Hd., Stl. (Tin Pl. ) Name Plate Machine Screw, No x 5/16", Fl. Hd., Stl. (Tin Pl. ) Cover Gasket Machine Screw, No x.1-1/4" Fl. Hd., Stl. (Tin Pl.) Bushing Plate Base Arrangement (Refer to Figure 11) SU-4549, p. 18

20 "'V'Ar,.,"'V' PARTS LIST FIG. & INDEX PART DESCRIPTION a -7-7a lla a la -2lb -22 UM UM UM UM UM UM UM17376 UM UM UM UJ UJ UM UN UN UN UN UN Base Arrangements Contact Block (2-Way) Contact Block (4-Way) Screw for Attaching Contact Blocks to Base (Not Shown) Contact Spring Machine Screw, No x 1-1/2", Fil. Hd., Br. (N. Pl.) (For Refs. A, E, F, H, I and J of Fig. 10) Binding Post (For Refs. B, C, D and G of Fig. 10) Hexagon Nut, No. 8-32, Br., (N. Pl.) (Used with Ref. 6) Nut (Used with Ref. 6a) Washer Lock Washer, No. 8, Ph. Brz. (N. Pl.) (Used with Ref. 6a) Mounting Plate Cover Plate (For Refs. A, E, F, H, I and J of Fig. 10) Cover Plate (For Refs. B, C, D and G of Fig. 10) Index Pin Terminal (For Refs. B, C, D and G of Fig. 10) Bracket (For Refs. B, C, D and G of Fig. 10) Lock Washer, No. 8, Ph. Brz. (N. Pl.) Hexagon N'ut, No. 8-32, Stl. (Tin Pl.) Machine Screw, No x 5/8", Fl. Hd., Stl. (Tin Pl. ) Machine Screw, No x 5/16", Fil. Hd., Stl. (Tin Pl.) Machine Screw, No x 5/16", Rd. Hd., Stl. (Tin Pl. ) Lock Washer, No. 6, Brz. (N. Pl.) Capacitor (For Refs. B, C and D of Fig. 10) Capacitor (For Ref. B of Fig. 10) Capacitor (For Ref. C of Fig. 10) Capacitor (For Ref. G of Fig. 10) Condenser (For Ref. D of Fig. 10) SU-4549, p. 19

21 '-/'At,,"""' < ' r L Ul,r';;,filH{:\fl i--: VIEWW Figure 11. Arrangements of Bases (Sheet 1 of 4) SU-4549, p. 20

22 'V" ,, ""'' 15 I VIEWX Figure 11. Arrangements of Bases (Sheet 2 of 4) SU-4549, p. 21

23 VIEWY Figure 11. Arrangements of Bases (Sheet 3 of 4) SU-4549, p. 22

24 WRBCC 'V'A,'V'" VIEW Z Figure 11. Arrangements of Bases (Sheet 4 of 4) SU-4549, p. 23

25 PARTS LIST FIG. & INDEX PART DESCRIPTION a -25b -25c UM UN UM UM UM UM Plug Potentiometer Base (For Refs. A, B, C, D, F and J of Fig. 10) Base (For Ref. G of Fig. 10) Base (For Refs. E and I of Fig. 10) Base (For Ref. H of Fig. 10) SU-4549, p. 24

26 "'v"a,.,,""' PARTS LIST FIG. & INDEX PART DESCRIPTION 12-A UN B UN C UN D UN E UN F UN G UN H UN I UN J UN K UN UN a UN b UN c UN d UN e UN ' -2f UN UN UN UN UMl UN a UN UM Way Style "L" Relay Complete, with IF (Elk) - lb-lfb Contacts, 650 Ohms Resistance 3-Way Style "L" Relay Complete, with 2F (Elk) - 2FB Contacts, 600/900 Ohms Resistance 3-Way Style "L" Relay Complete, with 2BlFB Contacts, 1200 Ohms Resistance 3-Way Style "L" Relay Complete, with 2FlFB Contacts, 1200 Ohms Resistance 3-Way Style "L" Relay Complete, with 2F- 2FB Contacts, 380/380 Ohms Resistance 3-Way Style "L" Relay Complete, with 3F Contacts, 650 Ohms Resistance 3-Way Style "L" Relay Complete, with 2F- 2FB Contacts, 380/380 Ohms Resistance 2-Way Style "L" Relay Complete, with 2F. Contacts, 0.60 Ohm Resistance 2-Way Style "L" Relay Complete, with 2F Contacts, 2 Ohms Resistance 2-Way Style "L" Relay Complete, with 2FB Contacts, 2250 Ohms Resistance 2-Way Style "L" Relay Complete, with 2B (Elk) Contacts, 2250 Ohms Resistance Coil, 650 Ohms Coil, 600/900 Ohms Coil, 1200 Ohms Coil, 380/380 Ohms Coil, Ohm Coil, 2 Ohms Coil, 2250 Ohms Core Backs trap Backstrap and Core Spring Washer Square Armature Round Armature Armature Stop SU-4549, p. 25

27 WABCC 17 b. il1 IM,mIIJI,, I ' A To G INCLUSIVE :i _ -_ -..: \ H To K INCLUSIVE Figure 12. style L Relays SU-4546, p. 26

28 PARTS LIST FIG. & INDEX PART DESCRIPTION a a * -17a* -17b* -17c* -17d* -17e* -17f* -17g* -17h* -17i* -17j* UM UN52247 UM UM UJ77811 UM UM UM UN UN UN UN UN UN UN UN UN UN UN Tag Holder Machine Screw, No x 3/16" Fil. Hd. Stl. (Tin Pl. ) Screw Lock Washer, No. 10, Stl. (Tin Pl.) Bolt Lock Insulating Washer Washer Coil Retainer Contact Bracket Machine Screw, No x 1/4" Fl. Hd. Stl. (Tin Pl. ) *For details see Figure 13. SU-4549, p. 27

29 'V",A.,'V" PARTS LIST FIG. & INDEX PART DESCRIPTION 13-A -B -c -D -E -F -G -H -I -J -K a -3b -3c -3d -3e -3f -3g -3h a UN UN UN UN UN UN UN UN UN UN UN UM UM UM UM UM UM UM UM UM UM UJ78298 UJ78167 UM UN UN UN UN UN UN UN UN UM UM UJ78353 UJ78421 Plate Bushing, 47 /64" Long Bushing, 49/64" Long Bushing, 59/64" Long Bushing, 29/32" Long Bushing, 19/32" Long Bushing, 37/64" Long Bushing, 39/64" Long Bushing, 41/ 64" Long. Bushing, 15/32" Long Insulation, 1/64" Thick Insulation, 1/8" Thick Terminal Connector Contact Spring Contact Spring Contact Spring Contact Spring Contact Spring Contact Spring Contact Spring Contact Spring Stop, Contact Spring Stop, Contact Spring Insulation,.015" Thick Insulation,.010" Thick Screw, Machine, 3-56 x 15/16", Fil. Hd. Stl. (Tin Pl.) Screw, Machine, 3-56 x 1-1/8", Fil. Hd. Stl. (Tin Pl. ) SU-4549, p. 28

30 ' (Jq CD... c..:, C":l 0.., (') rt Ul it A a B /j -..._,,_ -H \\ \\ = D a E I//,/ I 4- \ G H c F cri c: I.i::,.. CJ1.i::,.. ;O 'd N ' J K t\ bttr= I' \ \, r r l -, , 8

31 PARTS LIST FIG. & INDEX PART DESCRIPTION 13-20b -20c -20d Screw, Machine, 3-56 x 3/4", Fil. Hd. Stl. (Tin Pl.) Screw, Machine, 3-56 x 13/16", Fil. Hd. Stl. (Tin Pl. ) Screw, Machine, 3-56 x 11/16", Fil. Hd. Stl. (Tin Pl.)..., SU-4549, p. 30

32 PARTS LIST FIG. & INDEX PART DESCRIPTION 14-A -B -C -2-2a -2b UN Mounting Base Complete UN Mounting Base Co;mplete UN Mounting Base Complete UN Mounting Base Subassembly (For Ref A) UN Mounting Base Subassembly (For Ref B) UN Mounting Base Subassembly (For Ref C) UJ Base UJ Spring Retaining Cover (Upper For Ref A and C, Lower for Ref B) UM Spring Retaining Cover (Upper For Ref B, Lower for Ref A and C) Machine Screw, No x 7 /16" Fil. Hd. (Tin Pl.) Lockwasher, No. 6, (Tin Pl.) UJ Indexing Pin UN UM Contact Receptacle Stud Nut, 5/16" -24 S. Hex. (Cad. Pl.) Nut, 5/16" -24 Hex. Br. (N. Pl.) Lockwasher, 5/16" Plain S., (Cad. Pl.) s \ \ 8 E-,--;r =-= 't.... ;- - - /11 13 Figure 14. Mounting Base SU-4549, p. 31

33 r