1 - Ansaldo STS
Contents
1. ee A Drawing 0451325 Sh 1601 Rev 1 Figure 8 5 typical Circuit Diagram for 115 VAC Machine 115 VAC Control 7 U 6231 p 31 32 UNION SWITCH amp SIGNAL TS POWER HAND THROW INDICATION fi 191 8 SUPPLIED WITH CONTACTOR t 1 2 FIRST USED DN 1 N451613 0103 JUMPER SUPPLIED WITH MOTOR 1 1 S i 1 1 WW 26 Es B O 12 el lil 88 1 48 48 1 SZ CL s gt lt i 1 BXIISC 3 1 I EE 1 1 CONTACTOR Finca E El 24 Ea 5 gt 5 22 Du Hm R gt lt u R I 1 15 1 i Biol 22 5 1 1 1 Re 0P LF OVERLOAD 18 RE l 1 1 1 I 1 Nxiisc ew 125 191 i MOTDR 11 CONTACTOR CONTACTOR 2 P ES Bx230 41 141173 IL S IR 8 qa 41 b BE R2 RECTIFIER repe I i 1 OCTAL 18413 13 1 RC SOCKET 13 16 E I lili 1 1 i 1 I Iis i BK de 1 EE soc 51 53 2 L i l CLUTCH 0 0 7 L4 MAIN R 7 I WINDING WINDING l i CAPACITDR 1 I REVERSING po SWITCH i ws 1 a T A 342. 9 THERMAL ET 3 61 CUTOUT J Drawing D451325 Sh 1301 Rev 1 u Figure 8 6 1 Circuit Diagram for 230 Machine 115 VAC Control 929 6251 p 33 34 5 INDICATION POWER HAND H lo PLUG 14 NORMAL 1 I SS 8117 I INDICATION 15 y CONTROL la 12 1 Fg 1 gt 1 CONTROL 1 CIRCUITS I 1 1 La 171 1 A la 12 HOLDING 171 CIRCUIT 4 q Pot 93 119 1 881156 1 CONTROL 8 m INDICATION NX115C Lo 112 1 1 1 1 1 1 8 250 15 MOTOR 116 MOTOR NX230M 1 9 5 15 p le ial I l 1 1 15 1 I u 2 UNION SWITCH 8 SIGNAL 3 NOTES li 4 JUMPER SUPPLIED WITH CONTACTOR 1 2 FIRST USED N451613 0107 8 5 6 05 wa 4 8 CONTACTOR L CONTACTOR 15 fe oP SR OVERLOAD LB PROT ul ai m MOTOR CONTACTOR CONTACTOR ER L ei 1 IL L R 1 RECTIFIER E 1 3 I RC cane m 23 I I 4 1 1 I I i 5 1 6 5 i af BK CLUTCH 2 L 2 I L rn a 0 0 7 I 1 i 1 l 1 STARTING 1 I 521 1 WIND1NG 1 1 CAPACITOR 1
3. A REVERSING L0G Limit SWITCH 2 Bg 2 R 551 1 EE I 5 d 541 14 1 4 15 1 11 L THERMAL CUTOUT 1 en I J i Drawing D451325 Sh 1701 Rev 0 Figure 8 7 Typical Circuit Diagram for 230 VAC Machine i 115 VAC Control CN 6231 p 35 36 UNION SWITCH 8 SIGNAL po 5 POWER HAND THROW 5 1 1 i NOTES T INDICATION 3 JUMPERS SUPPLIED 1147 WITH CONTACTOR 1 1 2 FIRST USED le N451613 0201 Es 20 J 1 7 8 CONTROL 9 INDICATIONJ 1 CONTROL 1 I A 29 1 8 14 H Im 5 CONTACTOR 7 7 1 H gt I 1 1 i CONTROL 2 CIRCUITS i I TEE CONTACTOR NC7 ME chu 5 4 Sa lg 3 4L 4 R 1 l peme i Nod le CN 4 B3 IE y Pg i LIIW I 48 HOLDING 71 NR LB RF CIRCUIT 4 1 oP OVERLOAD i 8 RB LF PROT 24 E Vem 5 3 dsl gm CONTR Jol 0 1121 1 MOTOR i CONTACTOR JUMPER CONTACTOR 7 1 ILF L ILR IRR R IRF 6 I i 0 o BS 56 1 _ BIISM Pog 3 1131 1 I MOTOR 2 MOTOR POWER JUMPER B WINDING 1 154 185 E 1 R a L 28 288
4. 1 2 3 4 5 6 7 8 9 0 1 1 1 For output cam shaft assembly Part 451614 0501 Only 6231 12 ci Tre Dwg No D451614 Sh 5 Rev 3 PRESSED IN NY LA 1577 0 N 2 Z YK 55 N N N 90 SS d N Z O16 iho SEEN N N DAI Figure 8 5 UNION SWITCH amp SIGNAL SEE VIEW X Output Crank Shaft 6231 p B 13 B 14 SN UNION SWITCH amp SIGNAL COVER ASSEMBLY WITH GREEN YELLOW GLASS COLOR POSITION LIGHTS See Figure B 6 Cover I R451614 4101 Gasket A690969 Hood N451614 4202 Ring Lens M451614 4203 Module Lamp M451614 4302 tens Sreen 4 1 2 Glass J053142 Lens Yellow 4 1 2 Glass J053151 Screw Thumb 10 32 x 3 8 J507384 Screw Rd Hd 10 32 x 5 8 J525281 0110 Screw Rd Hd 1 4 20 x 1 2 J525269 0108 Washer Steel P1 10 3475132 00 Washer Steel Pl 1 4 1475132 0112 Washer Spring Steel LK 10 3475131 9 Washer Spring Steel LK 1 4 in 3475131 71 Plate Mounting 451614 4601 Socket Lamp J725895 Clamp Cable J709556 Harness N451614 4701 Lens listed are for cover assembly N451614 4401 If lens other than these are required please specify color material and lens location when ordering See tabulation below LENS Green Glass J053142 Yellow Red Green Yellow Red Lunar Whit
5. 1 32 jofoasesa cotter st 34 4 11 523 52 35 T 1 530220 27 1 2 1 2 36 I ho 28 2 Sene 0 6515 128 NOTES LPARTS SHOWN IN FULL 4ES TO BE FURNISHED BY USAS JACUT FOUR 4 INCHES FROM SWITCH END OF SWITCH ROD NO 1 DET 5 50041 o 224218 ROD CIR CONT OPER CONT OPER 10287 SHIM PUNTE YM 4 Ge 451511 DE 50052 286994 PRIOR TO INSTALLATION TO OBTAIN ADEQUATE CLEARANCE FOR 5 TUROW OF MACHINE SET EYEBOLT Alle ANY VARIENCE OF THROW 15 REQ SEE SERVICE MANUAL A PIN CTEM CAN ONLY BE INSTALLED IN ONE DIRECTION LOCATE PIN PER PLAN VIEW OF MACHINE BEFORE PLACING SWITCH MACHINE A ASSEMBLING OPERRTANG ROD BELLOWS amp SWITCH POINT ADIUSTER REFERTO INSTRUCTION MANUAL 6231 FOR OPER INSTRUCTIONS JUNCTION BOX ITEM 7 TO BE LOCATED TO SUIT FIELD CONDITIONS 1 6 Single Split Switch 15 Turnout 6231 p 25 26 Figure 8 2 1 Layout RB or 18 YM 4 Switch Machine Applied to insulated POWER HAND THROW INDICATION ENDICATION CONTROL CONTROL amp INDICATION POWER MOTOR POWER ES 20 CONTROL CONTROL BX115C 9 8 NX115M UNION SWITCH amp SIGNAL TS 912 19 m T JUMPER SUPPLIED ya WITH
6. Figure 8 4 Typical Circuit Diagram for 115 Machine 115VAC Control Se c NNNM IN ur 00 pr 29 20 15 POWER THROW INDICATION ER NOTES e JUMPERS SUPPLIED WITH CONTACTOR 2 FIRST USED ON le N451613 0106 aal 1 G JUNPER SUPPLIED WITH MOTOR 191 5 INDICATION 15 I CONTROL 1 94 18 154 Ka cos 1 1 na eq MEA i CONTACTOR e 1 1 1 1 1 CONTROL i 1 I CIRCUITS A 1 I 1 1 I i lI I 1 2 CONTACTOR 25 3 1 23 1 1 1 1 le 2 HOLDING 191 ES 4 2 CIRCUIT 4 1 1 OVERLOAD 3 I 8 PROT BX1I5C Le CONTROL WM en INDICATION NXIt5C f 021 1 Re 1 CONTACTOR CONTACTOR S 1 IR 1 1 9 25 54 i 1 6 RECTIFIER I OCTAL BXIISM 1 1 3 7 SOCKET 1131 28 I Ka y NXLISM 1 e I I 1 5 l POWER A I I NE 23 d 1 551 E 0 24 2 eg E EN MIS Lo w une D 1 1 gt I 1 g 5 MAIN R WINDING WINDING l I 1 I l l CAPACITOR I I 2 SWI 1 LUG 3L 50 Fel 5 t I Sa 41 Im 18 THERMAL ET 51 51 tow ave d
7. SY SERVICE MANUAL 6231 ELECTRIC SWITCH MACHINE YM 4 DUAL CONTROL TRAILABLE THIS MANUAL SUPERSEDES SM 6231 DATED OCTOBER 1982 November 1986 Rev 1 87 07 UNION SWITCH 8 SIGNAL DIVISION 0 11 87 75 2430 3 AMERICAN STANDARD INC PITTSBURGH PA 15237 SY SERVICE MANUAL 6231 ELECTRIC SWITCH MACHINE YM 4 DUAL CONTROL TRAILABLE THIS MANUAL SUPERSEDES SM 6231 DATED OCTOBER 1982 November 1986 Rev 1 87 07 UNION SWITCH 8 SIGNAL DIVISION 0 11 87 75 2430 3 AMERICAN STANDARD INC PITTSBURGH PA 15237 UNION SWITCH 8 SIGNAL REVISION INDEX This service manual supersedes all previously issued 6231 manuals and has been reissued to provide new and or corrected data Destroy all previously issued 6231 manuals Future revisions to this manual will be handled by addendum wherein a Revision Index page will be provided listing all revised PAGE REVISED 3 8 1 87 UNION SWITCH 8 SIGNAL Contents Section page 1 GENERAL INFORMATION 1 1 1 INTRODUCTION 1 1 2 DESCRIPTION 1 1 3 SPECIFICATIONS 1 1 3 1 Physical Chacacteristics 1 1 3 2 Operating Characteristics 1 1 3 3 Electrical Data for Components 2 H II INSTALLATION AND ADJUSTMENT 5 2 1 GENERAL 5 2 2 MOUNTING 5 2 3 HANDLEVER CUTOUT SWITCH 6 2 4 SWITCH ROD ADJUSTMENT 6 2 5 ELECTRIC AND CONTROL ADJUSTMENTS 8 2 5 1 Motor Limit and Indication Switch Adjustment 3 2
8. 1631 1 4 NUM Te Kess 3001 POWER JUMPER 1 S WINDING 1 19115 1 T R Ge 2LF z 28 288 R gg 81 V ORF BK T 51 1 11 I 1 I I JUMPER l 1 I I 2 2 2 i I L41 ll Tel B7 3LF L IT i O O D e I 1 Tt 3LR 3RR 1 11 JUMPER I 1 I I 1 f 1 8 1 I 1 i I 1 14 I 1201 5 1 pic m Drawi 45132 LJ rawing 5 5 Sh 1501 Rev 0 D Figure 8 9 Typical Circuit Diagram Cor 115 VDC Machine 12 VOC Control Z _ 6221 p 39 40 SERVICE MANUAL 6231 Appendix Parts List ELECTRIC SWITCH MACHINE 4 DUAL CONTROL TRAILABLE FOR SWITCH MACHINES MANUFACTURED AFTER JANUARY 1 1984 THIS MANUAL SUPERSEDES SM 6231 DATED OCTOBER 1982 N mber 1986 Rev 1 87 UNION SWITCH 8 SIGNAL DIVISION D 11 87 75 2430 3 AMERICAN STANDARD INC PITTSBURGH PA 15237 UNION SWITCH 8 SIGNAL gt YM 4 SWITCH MACHINE ASSEWBLIES Motor Control Power Indication Lights US amp S Part No 1 AC 115V AC 115V AC 115V 115 AC 115V Ac 115v 115 AC 115V AC 24 28V DC Control AC AC AC AC AC AC AC Control Control Control Control Control Control Control Control AC 12V DC Control AC 115V AC Control AC 115V AC Control DC 24 28V DC Control DC 12V DC Contro
9. Cover 451614 1402 Cover with Position indicating Lights N451614 4401 B See Figure B 6 Cover Assembly N451614 4402 D Plug Pipe 3 14 14 NPT J032906 All Gear Box w Motor Assembly See Fig 3 N451614 0301 A B Gear Box w Motor N451614 0302 0 Gear Box w Motor N451614 5001 Bolt 3 8 16 x 1 1 4 Hex J050056 All Washer LK 3 8 17047779 All Pin Dowel J 703412 All Spr ing Toggle See Figure 4 N451614 0401 all Pin Spring Block M451614 2303 All Pin Toggle Spring 451614 2302 Boit 1 2 13 1 3 4 Hex 1950095 All Washer LK 1 2 J047783 All Pin Cotter 1 4 x 2 J048645 ALL Shaft Output Crank See Figure 5 5 451614 0501 A B D E Shaft Output Crank N451614 0503 Plate Crank Shaft Mtg R451614 0103 All Shim M451614 0104 All Boit 3 8 16x1 Hex Hd 1050053 ALL Shatt Band Throw See Figure 2 N451614 0601 Bolt 1 13x6 Hex Hd J050251 11 Trough Wire M451614 3205 1 pin 451614 3105 11 Brkt Limit Sw Mtg M451614 3204 All Boit 1 4 20 x 5 8 Hex Hd J050013 All Washer LK 1 4 J047775 All Nut 1 4 20 2048203 AL Bolt 1 4 20x1 Hex Hi J050019 All Brkt Limit Switch M451614 3202 All Brkt Limit Switch M451614 3203 All B 2 Descr iption Switch Limit Switch Limit Insulators Bellows Plate Bellows Mtg Bolt 1 4 20 x 1 1 4 Hex Bd Nut 1 4 20 Hex Washer 1 4 PL Support Lever Cam Shaft Bolt 3 8 16 x 1 1 4 Hex Lever
10. Hand Throw Washer LK 1 Stud Lever Lever interlocking Bolt 5 8 11 x 3 1 4 Hex Nut 5 8 11 Slotted Hex Washer 5 8 Pl Brass Washer LK 5 8 Latch Hand Throw Nut Pin Cotter 1 8 x 1 Stl Gr omme t Bolt 1 2 13 x 1 1 4 Hex Hd Brkt Cut out Sw Mtg Screw 4 40 x 1 1 2 Rdh St Contactor Motor Rev Contactor Rev 7 5 Hb Screw 10 32 x 5 8 RDH Strip Term AAR 12 pole Strip Term AAR 4 pole Connector Term Strip Brkt Term Strip Mtg Screw 10 32 x 3 4 Fil Nut 10 32 Hex Stl Washer LK 10 Screw 10 32 x 3 8 RDH Nut AAR Nut AAR Jam Washer AAR Nut Insulating Strip Jones Term Protector Overload Heater Heater Heater Resistor 2K ohms 2 dA Resistor 7 5K ohms 2 dA 1725666 1725707 0193 451614 3208 3751327 451614 3601 2050021 17048002 1047501 451614 2 2050056 451614 3403 2047823 192069 77451614 4 8 451614 7 2048074 1475189 2047822 451614 3001 451614 3102 3048620 1751324 2050090 451614 3201 17525093 2706448 17709599 2052566 2077653 107471 451614 3206 451614 3207 17052299 2048172 7047733 1052564 2480301 7480300 2047818 1048300 1724351 J726153 0016 J713807 J713154 0006 J713154 0005 J073817 UNION SWITCH 8 SIGNAL Used On Code A B D E 11 11 a All All A B C D E All All All All All A B D 6 8 A B D E 6231 5 3 D UNION SWITCH amp SIGNAL 73 74 75 76
11. Part 451614 0501 Only 6231 p 16 UNION SWITCH amp SIGNAL ag VO 0 9f XS Kit Z 4 1 GO N SS lt mi BN A aqui 5 N SS CS fa t s E ae Seel ES U 1 N S Na SEE VIEW X SS 159553 AN SS S BL 3 ggessen 2 Z2 Z d 0 Ee WS J lt S Y 0 A 1 X Dwg No D451614 Sh 5 Rev 3 Figure A 5 Output Crank Shaft 6231 p A 17 A 18 PX TBI 25 D UNION SWITCH amp SIGNAL b COVER ASSEMBLY WITH TWO COLOR POSITION LIGHTS See Figure A 6 5 Cover 7451614 4471 10 Gasket A690969 15 Hood N451614 4202 20 Ring Lens M451614 4203 25 Module Lamp M451614 4302 30 Lens Green 4 1 2 Glass 1053142 35 Lens Yellow 4 1 2 in Glass J053151 40 Screw Thumb 10 32 x 3 8 J507 384 h 45 Screw Rd Hd 10 32 x 5 8 J525281 0110 2 50 Screw Rd Hd 1 4 20 x 1 2 J525269 0108 55 Washer Steel Pl 10 J475132 0110 60 Washer Steel Pl 1 4 in J475132 0112 65 Washer Spring Steel LK 10 J475131 0109 70 Washer Spring Steel LK 1 4 in J475131 0111 75 Plate Mounting 451614 4601 85 Socket Lamp J725895 90 Clamp Cable J709556 95 Harness N451614 4701 Lens listed are for cover assembly N451614 4401 lens other than these are required please specify color ma
12. limits of 28 0 2 VDC for 115 volt machines or Table 2 1 for 230 volt machines NOTE sure to tighten the set screw on the resistor slider when final adjustment is complete 2 6 INITIAL LUBRICATION Before leaving the factory all working parts of the machine are well lubricated Unpainted and unplated parts are coated with a special lubricant designed to protect these parts against corrosion To insure reliable operation lubricate the switch machine according to this section before placing in service During service lubricate at periodic intervals determined by the railroad Use the following lubrication chart 6231 10 Point of Application A 6 Locations B 2 Locations C 1 Location LUBRICATION CHART Type of Lubricant Method Grease Alemite 117650 01 Grease Gun A041089 Grease Stazon M M7652 2 Brush A041477 Machine Oil 10W 30 Oil Can or equivalent Figure 2 4 Lubrication Points UNION SWITCH amp SIGNAL Apply To Grease Fittings All geartooth surfaces Bushing Pin UNION SWITCH SIGNAL SECTION IIT OPERATION 3 1 MODES OF OPERATION The switch machine has basically three modes of operation power operation hand throw operation and trailing Operation a The power mode electrically drives the main shaft 180 and rotates the main crank 90 to move the operating rod and switch points hand throw mode m
13. 2 13 x 1 1 4 Hex Hd J050090 11 Brkt Cut out Sw 11451614 1 All excent G Cut out Sw Mtg M451614 5801 G Screw 4 40 x 1 1 2 Rdh St J525093 All Contactor Motor Rev J706448 A B C D F G ES I J M N Contactor 24 VDC Coils y J709599 E K Contactor 12 VDC Coils J709599 0001 H L O Screw 10 32 x 5 8 RDH J052566 11 Strip Term AAR 12 1 J077653 All Strip Term AAR 4 pole M107471 ALL Connector Term Strip M451614 3206 All Brkt Term Strip Mtg M451614 3207 0 Brkt Term Strip Mtg 451614 3209 All except 6231 2 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 85 86 87 88 90 91 92 94 Description Screw 10 32 x 7 8 Fil Hd Nut 10 32 Hex Stl Washer LK 10 Screw 10 32 x 3 8 RDH Nut AAR Nut AAR Jam Washer AAR Nut Insulating Strip Jones Term Protector Overload Heater Heater Heater Resistor 2K ohms 25 Watt Resistor 7 5K ohms 25W Harness Harness Harness Harness Harness Harness Harness Harness Harness Washer 8 Shakeproof LK Lead Clamp Trough Spring Soring Test Link Nut 9 16 18 Lead Term Ins Faston 250 Term Amp 6 Post Clamp Screw 3 48 x 3 4 Rd dd Ventilator Cap Plug Power Supply Power Supply Socket Octal Spiral Pin Cover Gear 80 Part No J052299 048172 7047733 7052564 7480301 4480300
14. 5 2 Electromagnetic Clutch Adjustment 9 2 6 INITIAL LUBRICATION 10 II OPERATION 12 3 1 MODES OF OPERATION 12 3 2 MANUAL OPERATION 12 OPERATING PRINCIPLES 13 4 1 GENBRAL 13 4 2 SWITCH OPERATING MECHANISM 13 43 MANUAL OPERATION 13 4 4 HANDLEVER CUTOUT DEVICE 15 4 5 OVERLOAD CUTOUT RELAY 16 4 6 TRAILING OPERATION 16 FIELD MAINTENANCE 17 5 1 GENERAL 17 VI SHOP MAINTENANCE 18 1 6 1 GENERAL 18 6 2 BEVELED GEAR WEAR PATTERN 18 6 3 ALTERNATE BEVELED GEAR ALIGNMENT 18 VII RECOMMENDED TOOL LIST 21 VIII DIAGRAMS 22 APPENDIX PARTS LIST UNION SWITCH SIGNAL ator Lights D on Indic zi 1 si D With Position Indicator Lights 4 Dual Control Electric Switch Machine ii UNION SWITCH 8 SIGNAL D SECTION I GENERAL INFORMATION 1 1 INTRODUCTION The YM 4 is a trailable dual control electric switch machine for rail transit systems and yards where an electrically powered machine is required It is designed for use in transit yards receiving and departure areas of classification yards industrial sidings and flat switching or storage yards 1 2 DESCRIPTION The mechanism of the 4 is totally enclosed a weatherproof all steel case measuring with standard cover 13 1 16 high x 12 7 8 wide x 43 1 2 long Mounting lugs are provided both sides of the case for firmly securing the machine between the ties providing a mounting arrangement
15. Gear M451514 2501 55 Gear M451614 2504 60 Washer 714591614 4 0 65 Screw 3 8 x 1 1 4 Hex HD 1050056 70 Ring Retaining Snap Ext J792852 75 Ring Retaining Snap Ext 7192855 80 Ring Retaining Snap Ext J792854 85 Gear 11451614 073 90 Bearing Needle RLR Cage 2066416 95 451614 5504 100 M451614 3505 105 Key M451614 3506 110 Gear M451614 2502 115 Ring Retaining Bowed Ext 4792849 120 Module Elect Clutch 7192845 125 Motor Perm 115V J717250 150 Gear M451514 2505 135 Screw 1 4 x 1 4 SAF Set 1050500 140 Washer 3 8 Stl Med J415121 0115 145 Gromnet 2751197 150 Spacer M451614 3511 155 Terminal PR INSUL DMDGRP 4150055 160 Card Quik Label Code 4065646 0001 gt 165 Card Quik Label Code 7063646 0002 170 Bushing Insul 1 2 4690429 175 Gear Bevel 451614 2701 180 M451614 3508 185 Nut 3 8 16 Hex Jam 1048010 190 Screw 5 8 16 x 1 1 4 Hex Hd 2046428 195 Washer Lock 4047786 200 Nut Lock 40485175 205 Shaft Hand Throw R451514 6402 210 Bearing Ball 8 215 Ring Retaining J790344 220 Washer M451614 3503 225 Ring Retaining 2079388 M 6231 p A 7 gt v UNION SWITCH amp SIGNAL GEAR BOX AND MOTOR ASSEMBLY PARTS Item 6231 p 8 Description Gear Key Bushing Ring Retaining Block Lever Bearing Spacer Ball Bearing LIST Cont d Part No 11491614 6 114516
16. Hex 1050056 70 Ring Retaining Snap Ext J792352 75 Ring Retaining Snap Ext J792853 80 Ring Retaining Snap Ext 7792354 85 Gear 451614 2503 90 Bearing Needle 858 Cage 1066416 95 451614 3504 100 M451614 3505 105 Key M451614 3506 110 Gear M451614 2502 115 Ring Retaining Bowed Ext J792849 120 Module Electro Clutch J792843 125 Motor 1 HP 115 239Vac J717245 0001 130 Gear 451614 2505 135 Screw 1 4 x 1 4 SAF Set J050500 140 Washer 3 8 Stl LK Med J475121 0113 145 Grommet J751127 150 Lead N438713 003 155 Lead N438713 004 150 Lead N438713 005 165 Lead N438713 006 gt 170 Lead 11438713 7 175 11438713 98 180 451614 3511 ae 185 Bushing Insulating 1 2 J690429 190 Gear Pinion Bevel M451614 2701 195 Key 451614 3508 200 Nut 3 8 15 UNC 28 Jam 4048010 205 Screw 3 8 16 x 1 1 4 Hex 17046428 210 Washer W 06 SKF Lock J047786 215 Nut N 06 SKF LK J048573 220 Shaft Hand Throw R451614 6402 225 Bearing Ball 081 w Seals J066 368 230 Rings Waldes Retaining J790344 235 Washer M451614 3503 6231 11 UNION SWITCH amp SIGNAL Ring External Ring J079388 Gear 451614 2506 11451614 7 Bushing M451393 0203 Ring Internal Ring 7192964 Block Lever Bearing R451514 2203 Spacer M451614 3512 Tubing Heat Shink 3 16 ID 8774169 Bearing Ball Single Row J066428 6231 p 12 UNION SWITCH 8 SIGNAL VIEW A t xI
17. by installing the padlock behind the post pedal locking device thus disabling the machine electrically 6231 15 UNION SWITCH 8 SIGNAL 4 5 OVERLOAD CUTOUT RELAY A thermal overload ambient compensated relay senses continuous motor current the clutch slips for any reason before stroke completion the overload relay is designed to remove power from the motor and clutch via the reversing contactor approximately 2 minutes after the start of the switching cycle overload relay heater can be sized to increase or decrease the approximate 2 min trip time Once the overload relay has actuated it will recycle in approximately 3 minutes The overload can be set for either automatic or manual operation In automatic operation the overload relay will automatically reset itself in manual operation the relay must be reset manually 4 6 TRAILING OPERATION e Trailing a switch equipped with a YM 4 machine merely reverses the mechanism In doing so the toggle spring is driven over dead center by the main crank Depending upon the control scheme used power may or may not be admitted to the electric motor Regardless of whether power is admitted the toggle spring force at First opposes the initial shift of the switch points the same as at an ordinary spring switch but unlike action at the latter the force required to throw the switch decreases as the switch points approach mid stroke During the last half of the s
18. equipment clearance diagram 15 shown in Pigure 2 1 AREA YARD SIGNAL EQUIPMENT P CLEARANCE DIAGRAM YM 4 WITH POSITION INDICATOR LIGHTS AREA YARD SIGNAL EQUIPMENT CLEARANCE DIAGRAM YM 4 WITHOUT POSITION INDICATOR LIGHTS Figure 2 1 Clearance Diagram 2 2 MOUNTING After the machine has been properly assembied for the layout proceeu as follows s NOTE The throw of the machine is recommended to be i incn greater than the throw of the points Place the rubber boot bellows tem 32 Figure 1 the Appendix on the operating rod having the open end facing away from the switch D Place tie metal bracket item 33 over top of the rubber boot C Instait rod on switch aujuster bracket d Siiqe operating rod through opening in case and mate with the eyebolt 6231 p 5 UNION SWITCH amp SIGNAL Mount and Fasten the machine on ties in accordance with layout plans appiying to the particular location i Connect the external wiring to the terminal boara in accordance with the w r ng diagram applying to the particular location Main terminal board wiring scheme 15 shown in Figures 8 3 through 8 9 Approved wiring plans should be followed for actual wiring However these diagrams can serve as an ald in developing the master plans g Adjust the eyebolt according to the total movement of the switch points kefer to Figure 2 2 and proceed as follows L Reier to the table in Figure 2 2 an
19. 14 7 M451593 0203 J792964 R451614 2203 451614 5515 7066426 UNION SWITCH 8 SIGNAL gt VIEW VIEW B VIEW C SECTION D D SECTION EE SECTION VIEW SHOWING MOUNTING OF PRHON GEAR CLUTCH MODULE ee Gennes Gas SEE VIEW A CZ lt E 25 S f 215 cU 0 g EIS M SUPPLIED pur x e LL diis 4 2 22 A J C K E 1 w 1 AN 3 le s 2 AP GC CL 7 N u en SHAFT WITH GEARS SET VIEW 87 FOR ASSEMBLY OF SHAFT WITH GEARS SEE VIEW C e N Drawing F451614 Sh 61 Rev 1 Figure A 2 Gear Box and Motor Assembiy 6232 p 9 10 UNION SWITCH amp SIGNAL GEAR BOX MOTOR ASSEMBLY PARTS LIST Part Nos N451614 6001 amp 6002 See Figure 3 5 Frame Gear Box N451614 6301 10 Shaft Gear N451614 1701 15 Shaft Gear Box N451614 1702 20 Shaft Gear Box N451614 1703 25 Bearing Ball Single Row J066419 30 Bearing Ball Single Row J066418 35 Bearing Ball Single Row J066417 40 Cup Bearing Single Row J066420 45 Bearing Cone Single Row J066421 50 Geat M451614 2501 55 Gear M451614 2504 60 Washer 451614 3510 65 Screw 3 8 x 1 1 4
20. 4 Figure A 1 can be adjusted by loosening the eight mounting bolts 17 and repositioning the crank The bevel gears are mated together as shown in Figure 6 2 Notice that the prick points in both gears are in alignment Should maintenance be required that separates the bevel gears re assemble the machine with prick points aligned for proper gearmesh In the event that the prick points have been worn off see paragraph 6 3 for an alternate method of aligning the bevel gears 6 3 ALTERNATE BEVELED GEAR ALIGNMENT Referring to Figure 6 3 mate the first gear tooth of the half moon segment gear as viewed from the operating bar end with the seventh groove counterclockwise from the keyway of the pinion gear 6231 p 18 Desirable Bearing Pattern UNION SWITCH 8 SIGNAL PROFILE ERROR To correct decrease mounting distance PROFILE ERROR CONVEX SIDE LOW HEEL CONTACT To correct increase mounting distance CONVEX SIDE HIGH TOE CONTACT CONCAVE SIDE _ p CONCAVE SIDE LOW TOE n HIGH HEEL CONVEX SIDE CONCAVE SIDE CONTACT CONVEX SIDE CONCAVE SIDE CONTACT HIGH TOE HIGH HEEL LOW HEEL LOW TOE CONTACT CONTACT CONTACT CONTACT CROSS CONTACT To correct move pinion up CROSS CONTACT To correct move pinion down CONVEX SIDE TOE CONTACT CONVEX SIDE HEEL CONTACT CONCAVE SIDE CONCAVE SIDE HEEL CONTA
21. 4047818 1048300 1724351 37261593 6 0713154 04 3713154 6 317 131 54 095 1073817 1735519 6 11451514 1 11451514 1 11451614 1 11451614 71 11451614 71 11451614 71 11451614 1 11451614 1 1451614 71 4047892 11438713 71 11451614 6 1451614 3 451614 4804 7071626 7480315 N438431 007 J525055 J5 25097 J731443 J730077 J709590 J525234 0 9 7102 3725709 0 J725709 0085 J792847 4487318 11451614 71 gt UNION SWITCH amp SIGNAL Used 11 11 ALL All All All all All All All A B D F G J L M N ne G J K L A B C D F G 1 J M N All A B D F G J K L N C I M All All A B C D F G 1 J M 6231 3 D UNION SWITCH amp SIGNAL Item Description Resistor 800 ohms 30 Watt Nut Jam 3 8 16 Nut 1 4 20 Hex Stl Heater Plate Name Lubricant Stazon M Spacer Pin Cotter 3 16 x 1 1 2 Stl Ties Cable Shim Screw 1 4 20 x 7 8 Hex Screw 10 32 x 1 2 In Rd Plate Cont Adapter Plate Cont Adapter Screw 10 32 x 1 4 Rd Washer 6 Shprf Lk Switch 6 amp 1257 SP ST Lead Label Not Shown Stud Hasp Screw 3 8 x 1 1 2 Hex Hd Pin Roll Elas Stp Nt Washer Hasp Washer 10 Shprf Lk Washer 10 Flt Stl Coml Clamp Cable Bracket Standoff Grommet Rubber Insulator Overload Protector Tubing Spiral Wrap Black Strip Term AAR 8 Pole Thermostat Washe
22. 6 1048627 041477 7703360 N451607 7101 M438876 4052565 7525046 2047733 1720074 7724515 451563 5101 7052568 387732 7050057 1487025 391200 072832 7047715 4475077 7709556 451174 0601 145117 4 01 we 9 dii t3 9 J 11 11 All All All All All All All A B D A B C D All All All All All all All All All UNION SWITCH amp SIGNAL ds Figure B l YM 4 Electric Switch Machine Exploded View 6231 5 n UNION SWITCH amp SIGNAL HAND THROW SHAFT PARTS LIST Part No N451614 0601 See Figure B 2 Description Gear Bevel M451614 2701 Key 1451614 28 3 8 16 Hex Jam 17048010 Screw 3 3 16 x 1 1 4 Hex Hd J050056 Washer Lock J407786 Nut Lock 2048573 es Sha ft 51614 2 i Co Ov U Du Bearing Ball 2066368 Ring RING J079344 Washer M451614 3503 Ring RING J079388 Gear M451614 2506 Key M451614 3507 Brg Ball Bushing J066426 Ring RING 3792964 Bracket Mtg R451614 2203 Housing Upper BRG M451614 0802 The following items are for reference Screw 3 8 16 x 1 1 4 Hex Hd J050056 Washer 3 8 Stl Lk Med J047779 Case YM 4 Switch Machine R451614 0901 Support Lever Shaft R451614 1802 6231 B 6 L a d 17 Ya sl H 8 PRESSED INTO I
23. 77 79 80 81 82 83 84 85 86 87 88 90 91 94 95 96 97 98 100 101 103 104 105 106 107 108 109 110 112 113 114 115 116 117 118 119 120 121 122 Harness Harness Harness Washer 8 Shakeproof LK Lead Lead Clamp Trough Spring Spring Test Link Lead Lead Screw 6 32 x 1 8 Screw 6 32 x 1 Rd Hd Term Ins Faston 250 Term Amp 6 Post Plate Cover Clamp Screw 3 48 x 3 4 Rd Hd Ventilator Cap Plug Power Supply Power Supply Socket Octal Cover Gear Box Resistor 800 ohms 30 Watt Nut Jam 3 8 16 Latch Assembly with Hasp Bolt 1 4 20 x 3 4 Hex Hd Spacer Pin Cotter 5 32 x 1 1 2 Stl Lubricant Stazon M Ties Cable Plat e Name Lead Screw 10 32 x 1 2 In Rd Screw 10 32 x 9 16 Rdh St Washer 10 Stl Lk Med Resistor 800 Ohms 30 Watt Switch 6 125 SP ST Bracket HTR Mounting Screw 10 32 x 7 8 Rd Hd Stud Hasp Screw 3 8 x 1 1 2 Hex Hd Pin Roll Elas Stp Nt Washer Hasp Washer 10 Shpr Lk Washer 10 Flt Stl Coml Clamp Cable Shim Top and Bottom Shim Side 0231 8 4 N451614 3801 N451614 5201 451614 4901 1047892 438713 001 N451614 5101 N451614 4802 M451614 4803 M451614 4804 1071626 N438713 007 451614 5102 7525241 4525097 4731443 4730077 451614 1302 7709590 525234 0 9 2703392 7725709 0070 J725709 0085 J792847 M451614 1303 J720074 J048010 J792898 4050016 451614 210
24. CONTACTOR 2 FIRST USED ON 451613 010 j Ire A JUMPER SUPPLIEO WITH MOTOR le 1915 Er E 1 l s wen Wi CONTACTOR 910 38 0 1 ti 1 S CL 1 1 D 1 JUMPER 1 I I 1 I I i 1 EN i ot CONTACTOR NCT NC8 mu AIF I x p I 1 I 7 x la 2 IE i I ira 22 TE 14 RB op F over oan t ER PROT lio El al d en i21 5 Ea WEN ICI CONTACTOR CONTACTOR L R I 41 I 9 o 58 BS I RZ R2 RECTIF i E Tet 1 I RECTIFIER RC SOCKET TET m 28 I i f i 7 1 I I I 1 6 2 29 1 e D BK BO LEAD i Lo 2 L R l 51 15 3 i i j_l 55 Sg 5 i Lo 85 I I l d START E MAIN I l i I S WINDING WINDING i I CAPACITOR 2 I I 89 REVERSING 2 ra 1 5 1 I 1 37 1 I le 50 1 1171 1 1 m I 1 4 84 4 1 lo Lo E 19 1 THERMAL 3 3 gj 6 CUTOUT i 1 f i i o La Drawing 0451325 Sh 1201 4 Figure 8 3 Typical Circuit Diagram for 115 VAC Machine trol 2 POINT OPEN REVERSE POWER HAND THROW INDICATION INDICATION 85 CON
25. CT EN CONVEX SIDE CONCAVE SIDE CONVEX SIDE CONCAVE SIDE HEEL CONTACT TOE CONTACT TOE CONTACT HEEL CONTACT SHAFT ANGLE ERROR SHAFT ANGLE ERROR To correct decrease shaft angle To correct increase shaft angle CONVEX SIDE CONVEX SIDE TOE CONTACT HEEL CONTACT CONCAVE SIDE ERROR CONCAVE SIDE lt A HEEL CONTACT CONVEX SIDE CONCAVE SIDE CONVEX SIDE CONCAVE SIDE TOE CONTACT TOE CONTACT HEEL CONTACT HEEL CONTACT Figure 6 1 Beveled Gear Pattern 6251 19 20 D 1231 UNION SWITCH 8 SIGNAL gt Viewed from operating bar end of the machine mesh the first tooth of the half moon gear into the seventh groove of the pinion gear This groove is located by starting at the keyway and counting seven positions in a counter clockwise direction PINION GEAR OPERATING 5 NOTE Rotate gears to verify that the prick ARM points align CRANK GEAR SEGMENT Figure 6 3 Alternate Bevel Gear Alignment 5231 p 20A 7 1 GENERAL SECTION VII RECOMMENDED TOOL LIST gt UNION SWITCH amp SIGNAL The following tabulation is a list of tools required for servicing the YM 4 Switch Machine be used tools are not supplied by US amp S ona p On Description Part No Screw Driver Combination Wrenches Ratchet Extension Sockets Hex Key Wrench 4 Bla
26. EMBLY SHAFT GEARS SEE Vie a VIEW SHOWING MOUNTING OF PINION GEAR OM CLUTCH MODULE MENTES keem L Im AC MOTOR 115 AND 230V AC MOTOR FOR ASSEMBLY SHAFT WITH GEARS SEE VIEWS 13 28 25 mua gt A 1 D LE DC MOTOR Dwg 451614 Sh 3 Rev 3 AC Motor Dwg F451614 Sh 50 Rev 0 DC Motor 115 7 DC MOTOR x FOR MOTOR PART NUMBER SUFFIX 0103 ONLY Figure B 3 Gear Box and Motor Assembly P 6231 p B 9 B 10 q UNION SWITCH amp SIGNAL TOGGLE SPRING ASSEMBLY Part No N451614 040i See Figure B 4 Spring Toggle J680196 Retainer Spring M451614 2801 Cap Spring Retainer M451614 2101 Rod Spring Retainer M451614 1301 Nut Spring Retainer 191309 Fitting 3 16 Alem Str J039139 Bushing 2 0 D x1 1 4 1 1 Ball J066415 END VIEW Figure B 4 Toggle spring Assembly 6231 p B 11 gt UNION SWITCH 8 SIGNAL OUTPUT CRANK SHAFT See Figure 5 5 Fitting 3 16 Alemite J039139 Bolt Adjustable Eye N451614 3106 Shaft Crank R451614 0502 Bearing Ball Bushing 1066415 Bolt 3 8 16 1050053 Nut 3 8 16 1048010 Bearing Ball Bushing J066414 Limit Switch 3776705 Cam Limit Switch 3776706 Screw BIN HD 10 32x5 8 J507373 Washer 10 Shprf Lock J047715
27. LICATION OF NAME PLATE Sg FOR COVER WITH LIGHTS 50 X i 11 Meee RLF 3 TC PIANE 4 80 od SCH oo 3 Ka SECTION SLIOA w d t SCALE BHIH9VW MS W al i SHOP HIAD 5 Drawing 451614 Sh 70 Rev 0 68 D ji Figure 7 Cover Assembly With Three Position Lights i 6231 25 26 gt SERVICE MANUAL 6231 Ka Appendix B Parts List ELECTRIC SWITCH MACHINE 4 DUAL CONTROL TRAILABLE FOR SWITCH MACHINES MANUFACTURED BEFORE JANUARY 1984 November 1986 Rev 1 87 0 UNION SWITCH amp SIGNAL DIVISION 4879551504 AMERICAN STANDARD INC PITTSBURGH PA 15237 4 UNION SWITCH 8 SIGNAL YM 4 SWITCH MACHINE ASSEMBLIES USES Part No N451613 0101 N451613 0102 N451613 0103 N451613 0104 N151613 0201 Indication Lights V 115 AC Control V 115 AC Control Green Yellow Glass AC 115V AC Control V 115 Control Lunar White Red Plastic V DC 24 28V DC Control 6231 4 SWITCH MACHINE ASSEMBLY Part No s 41613 01071 See Figure B 1 PARTS O1XX LIST Used On Description Pact No Code Case R451614 0901 All Cover w out Position Indicating Lights N451614 1401 A E
28. R 2 41 m 2 en 1 um 1 1 1 JUMPER 1 6 d E 21 2 1 L 3 37 em mm emm pm 17 gt 1 1 1 3LF L R 1 0 25 4 B4 l 4 BI LR 3RR _ f JUMPER 1 i 119 i 1 Drawing 0451325 Sh 1401 Rev 2 Figure 8 8 Typical Circuit Diagram for 115 VDC Machine e 24 28 VDC Control 6231 37 28 i UNION SWITCH amp SIGNAL 2 POWER HAND THROW g 1 5 INDICATION Ie JUMPERS SUPPLIED 1141 WITH CONTACTOR 1 2 FIRST USED ON N451613 030 5 20 J 171 e pel 151 5 INDICATIONJ 151 CONTROL 181 1 1 05 1 NC3 77574 NC4 1 8 14 H CONTACTOR 1 1 1 te 1 gt lt I 1 1 1 i CONTROL J i CIRCUITS 7 i H 1 1 1 1 1 1 I CONTACTOR ner 4 nce 151 3 1 e Cal 52 4 4 R 5 1 lt gt 1 R 1 I 1 i2 m m x HOLDING 4 CIRCUIT 1 op FF OVERLOAD tn RB LEI PROT 19 ST i S toy im CONTROL PN en TNOLCATION I NI2C 12 m 5 1 MOTOR I 1 CONTACTOR JUMPER CONTACTOR CZ I 1 ILF L ILR LRR R IRF 55 7 6 1 I 0 gt an ME an x BII5M 1 2
29. Shaft Output Crank See Figure 5 N451614 0501 14 Shaft Output Crank N451614 0503 15 Plate Crank Shaft Mtg R451614 0103 6231 1 gt b UNION SWITCH amp SIGNAL Used On Item Description Part No Code Shim M451614 0104 All Bolt 3 8 16x1 Hex Hd 17050053 11 Washer LK 9 16 J475209 All Screw 10 32 x 5 16 RD 17052562 Trough Wire M451614 3205 A11 Pin 1 N451614 3105 A11 Brkt Limit Sw Mtg 01451614 4 All Bolt 1 4 20 x 5 8 Hex Hd J050013 All Washer LK 1 4 J047775 All Nut 1 4 20 4048203 11 5 Bolt 1 4 20x1 Hex Hd J050019 All Brkt Limit Switch 10451614 4 2 11 Brkt Limit Switch M451614 3203 All Switch Limit J725666 All except C Switch Limit J725707 0193 All Insulators M451614 3208 All except Bellows J751327 All Plate Bellows Mtg 451614 3601 11 Bolt 1 4 20 x 1 1 4 Hex Hd J050021 All Nut 1 4 20 Hex J048002 All Washer 1 4 PL J047501 All Support Lever Cam Shaft 1451614 72 All Bolt 3 8 16 x 1 1 2 Hex Hd J050057 All Lever Hand Throw R451614 3403 All 1 Washer LK 1 17047823 All Stud Lever 192069 All Lever Interlocking 11451614 8 11 Bolt 5 8 11 x 3 1 4 Hex Galv 451614 2107 11 Nut 5 8 11 Slotted Hex J048074 11 Washer 5 8 Pl Brass J475189 All Washer LK 5 8 J047822 All Latch Hand Throw N451614 3001 All Nut 451614 3102 Pin Cotter 1 8 x 1 Stl J0 48620 All Bushing M451393 0701 All 7 Bolt 1
30. THREE POSITION LIGHTS See Figure A 7 Cover Assembly Complete N451614 7001 Cover Assembly Complete N451614 7002 5 Cover Case R451614 6901 10 Hood Complete 1145151440727 15 Lens Ring M451614 4203 20 Lamp Module 11 51614 27 25 Lens 4 1 2 Plastic Green 7001 4551506 Lena 4 1 2 Glass Green 7002 2055142 50 Lens 4 1 2 Plastic Yellow 7001 1551507 Lens 4 1 2 Glass Yellow 7002 2055151 35 Screw 10 32 x 3 8 Thumb 1507384 40 Screw 10 32 x 5 8 Rd Hd 15925281 0 45 Screw 1 4 20 x 1 2 Rd 1525269 0108 50 Washer 10 Steel Pl 2415152 0110 55 Washer 1 4 in Steel Pl J475132 0112 60 Washer 10 Spring Steel LK J475131 0109 65 Washer 1 4 in Spring Steel 1 31475131 01 70 Mounting Plate 11451614 461 T5 Lamp Socket 7125895 80 Cable Clamp 1109556 85 Harness N451614 6701 90 Lens 4 1 2 Plastic Red 7001 15305 Lens 4 1 2 Glass 7002 1055141 95 Gasket 1 2 5 8 A690969 100 Contact Adhesive A041988 6231 A 23 A 24 4 UNION SWITCH amp SIGNAL gt POINT OPEN POINT OPEN TERMINAL 8 N POST wor 29 REV KEN 3 TAGS TAGS e COMMON COMMON CEMAL MALE ENC END el 14 common SHOWING 7 OF PLUGS wRtdhG PURPOSES D RENERSE 3NIHOVM HOLIMS 2 4 WA FILS POINT OPEN lt 1 NORMAL NORMAL HANC THROW 5125 VIEW DIRECTION OF ARROW CIRCUIT DIAGRAM APP
31. TI BEFORE ASSEMBLY SECTION 12 Figure 2 1 15 PRESSED INTO IT 16 BEFORE A H ASSEMBLY 22 23 1 FOR RER ONLY de OE 24 FOR REF ONLY e MS nana Ihrow 1VNDIS Y HOLIMS 6 UNION SWITCH 8 SIGNAL AN HI V La 6231 8 8 GEAR BOX AND MOTOR ASSEMBLY PARTS LIST See Fiqure 3 Description Frame Gear Box Shaft Sha t Shaft Bearing Ball Bearing Ball Bearing Ball Cup Bearing Ball Bearing Gear Gear Washer Screw 3 8 16 x 1 1 4 Hex Hd Ring Retaining Ring Retaining Ring Retaining Gear Bearing Needle RLR Cage Key Key Key Gear Ring Retaining Module Electro Clutch Motor 1 HP 115 230 Vac Motor Perm Magnet 115 Vdc Gear Pinion Screw 1 4 20 x 1 4 SAF Set Washer 3 8 Lock Grommet Part No R451614 0201 451614 1701 451614 1702 451614 1703 1066419 1066418 1066417 1066420 1066421 451614 2501 451614 2504 451614 3510 17050056 4792852 1792853 1792854 451614 2503 1066416 451614 3504 451614 3505 451614 3506 451614 2502 1792849 2 1792843 1717245 0001 1717250 11451614 5 1050500 1047779 4751127 Rev 1 87 UNION SWITCH amp SIGNAL v 11 SECTION D D SECTION SECTION F F 13 28 Aic me lt lt FOR ASS
32. TROL 3 1 2 BX SM MOTOR 4 NXI 15M T r s 19 414 m 17 5 1 8 x 2 wm au dem 35 m am 49865 1 l XX w KE Q inel 0 e De 29 19 ame om em La di UNION SWITCH 6 SIGNAL V A JUMPER SUPPLIED E WITH CONTACTOR 2 FIRST USED N451613 0108 FOR D 6 w 02 CHA d i EES NC3 Eng NCA i R CONTACTOR 13 EI T gt cS iio Bs JUMPER CONTACTOR RB OVERLOAD LB ar PROT MOTOR JS s up ED s gr Uu 5 3 CONTACTOR CONTACTOR e 41 Y 9 i RECTIFIER OCTAL 13 1 3 RC SOCKET I 1 i e E 1 3 51 82 1 ua on WS rm i 21 8 28 a STARTING BI i tt WINDING 8 E 52 l CAPACITOR H REVERSING i 1 4 5 H SWITCH 132 q 2 1 Sa 2 k n 58 gi i 1 5 Ba 54 ER T i i 1 1 THERMAL CUTOUT 1 gy 15 BT L i H Drawing 1451325 Sh 1801 Rev 0
33. TS DEC 17 NUMBER LT NUMBER SHEET z SUFFIX iit nlesicia MX machine 0 4 switch 4 5 3 ol 211 8413 0 5 566 5 1 WASHER C I 3 4 Ole Y 21 1 38 3 i v wl aif v IN 8 us 1 B 631 311 t N 0 6 8 1 2 02 el v el 8j Df HE a u hi 1 5 13 5 s el 5542 25 4 8065206 va SCREW i5 fit a 55 4 5700 374 4 sito Bl 356 2 2 11 4 3 1 4862 34 ev en j 4 1316462231 nur 54 59 551 1 4 047772 wasa 58 2 2 552 504 415 47 sa 8479 1 2 l o4soso Taux wen en 21 ft 2 0047774 660 6 5 2211 2 jJojo4seas CoY Va X er 90 23 1 3 3 64150 SIL 21 AAA ee asl WS 221 2 1032488 seer 1 127 1 1 slesoesz conn 2 semmire 2 2 3 645417 voce ne T 29 fi 47 0015 6 5 III 2 41451565 6 02 0 5 172 Ser 3 BA51569 o1 AN a 1622583 00
34. V4 KEY S wi TH 17 24 SECTION D D SECTION EE VIEW SHOWING MOUNTING OF PINIO ONSEN Se CLUTCH FOR ASSEMBLY OF SHAFT 210 WITH GEARS SEE VIEW A eis 45 1 4 m OOD 79 i 8 2 VIEW X 9 5 9 T as Aa d Sei T A N ze Ne ei FOR ASSEMBLY SHAFT WITH GEARS SEE VIEW C Drawing F451614 Sh 60 Rev 2 Figure A 3 Gear Box and Motor Assembly 6231 13 14 UNION SWITCH amp SIGNAL gt TOGGLE SPRING ASSEMBLY Part No 11451 6118 001 See Figure A H Spring Toggle J6801 96 Retainer Spring M451 614 2801 Cap Spring Retainer M451 614 21 01 Rod Spring Retainer M451 61 4 1 301 d Nut Spring Retainer ML91 309 Fitting 3 16 Alem Str JO 391 39 Bushing 2 0 D x1 1 4 I D Ball J066415 END VIEW 6555555 MI SENS 22222 Figure A 4 Toggle Spring Assembly 6231 15 UNION SWITCH amp SIGNAL OUTPUT CRANK SHAFT See Figure 5 Fitting 3 16 Alemite J039139 Bolt Adjustable Eye N451614 3106 Shaft Crank R451614 0502 Bearing Ball Bushing 1065415 Bolt 3 8 16 7050053 Nut e 3 8 16 048010 Bearing Ball Bushing 17066414 Limit Switch 1776105 Cam Limit Switch J776706 Screw BIN HD 10 9 J507373 Washer 10 Shprf Lock J047715 1 2 3 4 5 6 7 8 9 0 1 For Output Crank Shaft assembly
35. anually operates the points the same as electrically by rotating the main shaft But during the hand throw operation only the gearbox is driven The motor is disconnected from the drive train due to the electro magnetic clutch This clutch is only energized engaged when the motor is energized The cutout switch will break the circuit to the motor reversing contactor preventing the motor from being energized When the switch points are trailed the operating rod rotates the main crank thus compressing the toggle spring to mid stroke and then allows the toggle spring to complete the operation 3 2 MANUAL OPERATION To operate the YM 4 manually follow this procedure 1 Remove vadlock from foot pedal latch 2 Depress foot pedal to unlatch the hand throw lever 3 Raise hand throw lever and complete the movement to Operate the switch Note that slightly beyond mid stroke the spring toggle action becomes operative to complete the stroke 4 Rotate lever counterclockwise and engage lever into latch stand and secure with lock The electric motor does not function during manual operation And during electric operation the hand throw lever does not go through the cycle The hand throw lever must be in its latch with the foot pedal closed during trailing operation si see paragraph 4 6 6231 p 12 UNION SWITCH amp SIGNAL b SECTION IV OPERATING PRINCIPLES 4 1 GENERAL The switch points are either thro
36. ar basket nut until the main crank has rotated approximately 5 degrees Operate the switch several times by hand to see if the tension is maintained If it is tighten the basket lock nuts and again check for tensions 2 5 ELECTRIC AND CONTROL ADJUSTMENTS After completion of the switch rod adjustments described in paragraph 2 4 check the motor limit and indication switches as follows these switches are preset at the factory 2 5 1 Motor Limit and Indication Switch Adjustment 7 Loosen button head cap screw on four cams on the main crank item 14 Figure 1 Rotate cams to insure limit switches click on and off If switches don t click loosen the two 1 4 20 nuts and bolts and adjust the switches in or out from the crank until the cams will activate the appropriate switch Tighten the 1 4 20 nuts and bolts Note Maintain proper over travel on switch after adjustment See paragraph 1 5 5 d Throw the switch machine so the main crank is at mid stroke toggle point Rotate the two inside cams for switch S1 and S2 to activate deactivate the switches simultaneously then tighten screws Complete stroke to the out position Rotate the cam for switch SL case side to activate switch Rotate cam an additional 109 Hand throw the machine to the in position of the main crank Rotate the cam for switch SR on the gear side to activate the switch Rotate the cam an additional 10 Tighten t
37. d determine A dimension dimension will vary depending on throw of points For example the throw of the points is 4 3 4 inches A dimension should be 3 95 inches 2 Adjust eyebolt to proper A dimension by turning eyeboit in or out A dimension is the distance from the machined surtace of the shaft to the tip or the eyeboit h Attach the operating rod to the adjustabie eyebolt with pin provided Secure with cotter pin Attucn meta bracket and rubber boot to case with screws that are holaing the shipping plate over the case opening 2 3 HAND LEVER CUTOUT Gei Check the adjustment of the hana lever cutout switch to make certain the switch operates as the foot pedal is depressed the switch must click oerore the top of the foot pedal clears the hand throw ever to assure that simuitaneous handlever n power operation will not occur 5 With the hand thiow lever out of the foot pedal stand try to close the foot peual to make sure the pedal will not close and the switch does not 2 4 SWITCH ROL ADJUSTMENT WARNING while making switch rod adjustments make sure the hand lever cutout switch is operating pec paragraph 2 3 ana Foot peual is ruliy depressed Inadvertent operation could cause personal injury After the switch machine has peen installea and wirea in accordance with the approved switch plans it must be adjusted to obtain proper operation and develop the 1equireu f
38. de 2 7 8 Blade 037 x 1 4 Tip 032 x 3 16 Tip 1 2 9 16 11 16 3 4 3 8 Drive 3 8 Drive x 12 1 2 9 16 11 16 3 4 1 8 T Handle Hex Key Wrench 1 8 Adjustable Wrench 6 Adjustable Wrench 10 Retaining Ring 11 w Right Angle Tip Slip Joint Pliers 11 Peen Hammer AAR Wrench Torque Wrench 15 Foot Pound Mid Range 3 8 Drive Hex Bit Holder with a 4 Inch x 5 32 Hex Bit The part number provided is a Snap On number but any equivalent tool may SSD4 SSD2 160 180 220 OEX 240 F725 FX11 FS161 5181 FS221 5241 AWL4 GAW1608 DA26 DA210 PR349A 46 BP2OA 6231 21 v UNION SWITCH amp SIGNAL SECTION VIII DIAGRAMS The following diagrams are included in this section Figure Figure Figure Figure Figure Figure Figure Figure Figure 6251 p 22 8 1 8 2 8 5 8 6 8 7 8 8 8 9 Timing Diagram Typical Layout RH or YM 4 Switch Machine Applied to Insulated 16 6 Single Split Switch 15 Turnout Typical Circuit Diagram for 115 VAC YM 4 Switch Machine Typical Circuit Diagram for 115 VAC YM 4 Switch Machine Typical Circuit Diagram for 115 VAC YM 4 Switch Machine Typical Circuit Diagram for 230 VAC YM 4 Switch Machine Typical Circuit Diagram for 250 VAC YM 4 Switch Machine Typical Circuit Diagram for 115 VDC Control YM 4 Switch Machine Typical Circuit Diag
39. e Glass Glass Plastic Plastic Plastic Plastic 4053151 17053141 1531506 4531507 7531505 1531504 6231 15 16 BEN MOR com MALE END c e TERMINAL POST TAGS TAGS wong EI Je 1 I E SHOWING TEA MARAIS OF PLUGS FoR couRIMG PURPOSES wm DETAIL B SCALE i i 39 5 KN NORMAL NORMAL THROW 5125 CIRCUIT DIAGRAM FOR COVER WITH LIGHTS PLUG Y 4 53 u 5 peut Y D N en 0 ER gid woiow o BOTH ENDS 5170 N d 3NIHIVW MS a OD 5 SEE DETAIL BR kees Bo Loos ueus 6 5 covor ereen 5053151 GLASS RED MS MATER PLASTIC PTCA PLASTIC OPTICNL PLASTICCOPTICAL 1 3531505 Lion 3531505 REO VIEW IN DIRECTION OF ARROW APPLICATION OF NAME PLATE Figure 6 gt gt SEES om Do afte EE le De 9 SECTION ALL DIMENSIONS MARKED ARE FOR REF ONLY Drawing 451614 Sh 44 8 Cover Assembly With Green Yellow Color Position Lighhts EIN p
40. esistance Ohms Amps Watts Operating emp Bearings 23 Vde 2Vdc 452 0 199 at 90 Vdc 18 800F to 3009F 12Vdo 1 HP 375 Amps 9 6 Vde 15 Amps 8 d TEZO LIFTING TOGGLE HOLE SPRING MOUNTING HOLE ASSEMBLY MOUNTING LOCKABLE FLANGE FROST AND TOGGLE SWITCH SERIAL NO CRANK ASSEMBLY OPTIONAL CAM AND CONTROL THERMAL SWITCHES OVERLOAD PROTECTOR MOTOR REVERSING CONTACTOR RECTIFIER HAND THROW CUT OUT SWITICH PEDAL LATCH MAIN SHAFT AND GEAR BOX HAND THROW ASSEMBLY ASSEMBLY CLUTCH ELECTRIC MOTOR WIRING PROTECTOR TERMINAL STRIP Figure 1 1 115 YM 4 Electric Switch Machine Internal View Cover Removed 1VN91S Y HOLIMS NOINN ER UNION SWITCH 8 SIGNAL e 13 1 16 58 x a N Birne GENTER OF TIE CENTER OF Figure 1 2 Mounting Dimensions 6231 p 4 UNION SWITCH 8 SIGNAL D SECTION 11 INSTALLATION AND ADJUSTMENT 2 1 GENERAL A typical track layout plan ot the 4 switch machine is shown Figure 8 2 with optional U5 circuit controller and junction box Detail mounting plans approved by tne railroad shouid be Followed when installing the machine Special tovuis are required for installation Mounting dimensions for the switch machine are snown Figure 1 2 AREA yard signal
41. essed and the toggle mechanism is rotated to dead center As the machine continues the toggle mechanism is driven past center where upon the spring force assists the motor in completing the stroke Since the holding force of the spring is equal to that used at spring switches the motor is turned off and the clutch disengaged at the end of the stroke clutch is engaged only while throwing the switch by power 4 3 MANUAL HAND LEVER OPERATION See Figure 4 1 Removal of the padlock from the foot pedal latch and subsequent foot depression of the latch will unlatch the hand throw lever A plunger is directly connected to this latch which will through a limit switch interrupt the electrical circuit to the motor reversing contactor and open a circuit to inform the controller that the Switch machine is in manual mode of operation An external interlocking lever prevents accidental closure of the latch while the hand throw lever is out of the lever stand When the hand throw lever is removed from its stand the cam surface on the lever hub forces the interlocking lever in a clockwise direction thus not allowing the latch stand to be closed 6231 13 UNION SWITCH 8 SIGNAL Disengagement Feature of the Hand Throw Lever 1 Figure 4 6231 p 14 UNION SWITCH amp SIGNAL gt The hand throw lever rotates the main crank through bevel gears Use of a disengagement collar on the main shaft permits the machine
42. he 4 four button head cap screws gt UNION SWITCH 8 SIGNAL v 2 5 2 Electromagnetic Clutch Adjustment a Clutch Operating Voltage CAUTION THE FOLLOWING MEASUREMENTS ARE MADE WITH THE MACHINE IN OPERATION CAREFUL NOT TO COME IN CONTACT WITH ANY MOVING PARTS OR ELECTRICAL TERMINAL POSTS NOTE Step 1 is needed only on 230 volt machines N451613 0103 0107 0111 3 L4 Measure the line voltage across terminals 13 and 15 with the machine in operation NOTE several measurements to confirm readings 2 Measure the DC clutch operating voltage lead to clutch wire on Variable resistor lead to Pin 7 on base of plug in power supply see Figure 2 3 for Pin 7 reference CLUTCH MINUS TEST POINT Figure 2 3 Top View of Octal Socket Pin Layout 6231 p 9 D UNION SWITCH amp SIGNAL For all 115 VAC and 115 vpc machines the clutch voltage is in within tolerance if it is 28 0 2 Vdc For the 230 VAC machines N451613 0103 0107 and 0111 the clutch voltage is in tolerance if it falls within the limit shown in Table 2 1 Table 2 1 AC Input Voltage pc Clutch Voltage NOMINAL b Clutch Voltage Adjustment Les The clutch voltage may be adjusted by removing power from the switch machine and relocating the position of the slider on the wirewound resistor item 71 on page A 5 A 6 or B 5 2 Re test the clutch voltage to verify that the voltage is within
43. l DC 12V DC Control Description Case Green Yellow Glass Lunar White Red Plastic Green Yellow Plastic Green Yellow Glass Green Yellow Plastic Red Yellow Green PLastic Green Red Yellow Plastic Green Red Yellow Glass Green Red Glass Green Yellow Glass N451613 0101 N451613 0102 N451613 0103 N451613 0104 N451613 0105 N451613 0106 N451613 0107 N451613 0108 N451613 0109 N451613 0110 N451613 0111 N451613 0112 N451613 0201 N451613 0301 N451613 0302 YM 4 SWITCH MACHINE ASSEMBLY PARTS LIST Part No s 451613 0101 0 See Figure 1 Part No R451614 0902 O m DG SD Com D gt On Code 2 Cover 11451614 72 Cover with Position Indicating Lights N451614 4401 See Figure 6 Cover Assembly N451614 4402 Cover Assembly N451614 4403 Cover Assembly N451614 4405 Cover Assembly N451614 7001 Cover Assembly 451614 7002 3 Plug Pipe 3 14 14 NPT J032906 4 120 Gear Box and Motor Assembly N451614 6001 See Fig 3 Gear Box and Motor Assembly See Figure 3 N451614 6002 ge Gear Box and Motor Assembly See Figure 2 451614 6101 5 Bolt 3 8 16 x 1 1 4 Hex 7050056 6 Washer LK 3 8 J475121 0113 7 Pin Dowel J703412 8 Spring Toggle See Figure A 4 N451614 0401 9 Pin Spring Block M451614 2303 10 Pin Toggle Spring M451614 2302 11 Bolt 1 2 13x1 3 4 Hex Hd J050095 12 Washer LK 1 2 J047783 13 Pin Cotter 1 4 x 2 17048645 14
44. nts of the motor Motor oiling is only required once every 5 to 10 years 5 Lubricating the switch machine at periodic intervals is essential The frequency of lubrication should be determined by experience and specific applications and amount of operations Minimum lubrication should occur not less than once every 6 months more frequent might be necessary in specific applications Refer to paragraph 2 6 and Figure 2 4 6231 p 17 gt UNION SWITCH amp SIGNAL SECTION VI SHOP MAINTENANCE 6 1 GENERAL Shop maintenance consists of restoring a damaged switch machine to an operable state This is accomplished by repairing and or replacing damaged parts Refer to the parts list for ordering information and the lowest replaceable unit The exploded view in the parts list section will aid in disassembling and reassembling the switch machine 6 2 BEVELED GEAR WEAR PATTERN g Mark the teeth of the two beveled gears of the crank assembly with a suitable marking compound Throw the switch machine a few times Check the contact a pattern as shown in Figure 6 1 Gears are cut with a contact pattern about half the length of the tooth the location slightly favoring the toe end of the tooth Under load the pattern will shift somewhat toward the heel of the tooth and will thus become more central Under no circumstances must the pattern be concent rated on the ends of the teeth Tf an adjustment is needed the crank assembly Item 1
45. oke Adjustable from 3 1 2 to 6 inches b Operating Time 2 seconds Force on Switch Rod 1 000 pound minimun Extreme Position i d Trailing Speed 5 MPH Max 6231 1 S v UNION SWITCH amp SIGNAL 1 5 5 Motor will operate satisfactorily on voltages within 10 of CH 6251 Blectrical Data Motor Voltage Horsepower Hz Phase Current Full Load In Rush Clutch Slip Max nameplate value 115 VAC 1 60 1 14 6 42 0 100 16 0 230 VAC 1 50 1 741 28 5 125m sec 8 0 Reversing Contactor AC Control 115 VAC Contactor will operate at 70 of rated voltage Rating Coil Current Contacts 115 volts ac Auxiliary Contacts 115 volts ac Reversing Contactor DC Control 115 6 10 0 44 0 200m sec 12 5 1 HP 159 Milliamps 15 Amps 5 8 Contactor will operate at 80 of nominal voltage with 10 overload Rating Coil Current Voltage Minimum Contacts Auxiliary Contacts 24 6 1 HP 192 Amps 22 5Vdc 15 Amp3 5 Control and Indication Switches Sl 52 SL SR Type Rating 10 Amps 125 250 VAC Vibration Resistance 25G s 2 000 CPS Mechanical Life 10 000 000 Cycles Minimum Snap Action Switches SPDT DPDT Elec Life 750 000 Cycles Overtravel 0 015 Min Release Force 4 oz Min Ambient Temp Range 659F to 7 Clutch Voltage 90 VDC Rated Operated from DC or rectified AC Cluteh Operating Voltage R
46. orces on the operating rod Use the following procedure to produce the specified holding torce on the switch rod See Figure 8 2 a Set the handlever so the operating rod is in the in position and the switch point against the near rail Tighten the far basket nut until ali the slack 15 removed from the switch rod components UNION SWITCH amp SIGNAL 4 1 4 4 1 2 4 3 4 5 Throw Recommended Play of Points In Basket Total A D im Inches 2 2 2 1 4 2 18 2 1 2 2 36 2 3 4 2 54 3 2 71 7 3 17 2 89 3 1 2 307 3 3 4 3 25 e 1 3 43 3 60 3 78 3 96 4 14 ADJUSTABLE EYE BOLT Note Adjust A Dimension to Corresponding Throw of Points i Figure 2 2 Machine Stroke Adjustment 631 p 7 D UNION SWITCH amp SIGNAL b Move the operating rod to the out position with the handlever and move the switch points against the far rail Tighten the near basket nut until all the slack is removed from the switch rod components Return the operating rod to the in position by the handlever This should move the near point up against the near stock rail Tighten the far basket nut until the main crank has rotated approximately 5 degrees Fasten the operating boot to the operating rod with the band clamp Compress the boot to a comfortable position in toward the machine Move the operating rod to the out position by the handlever Check to make sure the boot is not overextended Tighten the ne
47. r 10 Stl Lk Screw 10 32 x 3 16 Rd Hd Cable Clamp Screw 8 32 x 3 16 Rd Shim Top and Bottom Shim Side 6231 5 4 Used Dart Code 7120074 4048010 4048631 451607 7101 041477 451614 2106 7048634 3703360 451614 0105 1050017 7052565 451614 5103 451614 5105 7052563 1047713 4724515 438876 451523 2501 387732 4050057 4487025 391200 4072832 1047715 7475077 741709556 451614 5603 1075487 17780059 774186 223608 J6 20940 J047733 J052561 J700651 4052601 11451174 1 1451174 71 C G H I O 11 11 C G H 1I 0 All All All All 11 All All All except G G All All C G H I O0 C G H I O 11 11 11 11 11 11 1 7 11 All A11 11 All All except UNION SWITCH amp SIGNAL 132 133 AS REQUIRED Figure 1 YM 4 Electric Switch Machine Exploded View 6231 gt UNION SWITCH amp SIGNAL GEAR BOX AND MOTOR ASSEMBLY PARTS LIST Part No N451614 6101 See Figure 2 5 Frame Gear Box N451614 6301 10 Shaft Gear Box M451614 1701 15 Shaft Gear Box N451614 1702 20 Shaft Gear Box M451614 1703 25 Bearing Ball Single Row 2066419 50 Bearing Ball Single Row J066418 35 Bearing Ball Single Row JO66417 40 CUP BRG Single Row 2066420 1 45 Bearing Cone Single Row J066421 50
48. ram for 115 VDC YM 4 Switch Machine Machine Machine Machine Machine Machine Machine Machine 115 VAC Control 115 VAC Control 115 VAC Control 115 VAC Control 115 VAC Control 24 28 VDC 12 VDC Control 4 UNION SWITCH 8 SIGNAL O O OO O O OO O O 90 006000 CRANK POSITION HORIZONTAL LINES INDICATE THAT PORTION OF THE CRANK MOVEMENT DURING WHICH THE CIRCUIT IS CLOSED THROUGH THE INDICATED CONTACTS Figure 8 1 Timing Diagram 6231 p 25 24 TYPICAL LAYOUT WITH OPTIONAL U 5 CIRCUIT CONTROLLER AND JUNCTION BOX INCLUDING SEALTITE CONDUIT AND ALL ASSOCIATED MOUNTING HARDWARE TEXa 9 8 4 WE 5 THIXWET f vw DIM FOR CLERRENCE OF MACH Omm 34 2 3 0002 9969 TE RI T x9xu Tl 7 36 56 2 1 at OPTIONAL L H LAYOUT LH POINT CLOSED YARD SIGNAL EQUIPMENT CLEARANCE DIAGRAM lt E lt gt AAA A A A SA Ma de NEO COVER WITH 2 POSITONLIGHTS OPTIONAL COVER WITH 3 POSITION UGHTS OPTIONAL Drawing 0451567 Sh 81 Rev 0 i i 1 H UNION SWITCH amp SIGNAL 72 PART QUANTITY IDENTIFICATION UNI
49. sition shown in Figure 4 1 c Now stud D is in the front track of the shaft collar and in position to rotate the main shaft hand throw shaft when the lever is returned to the latch staud The clockwise stroke of the lever is um by the engagement of the flat surface of the cam with stud D Figure 4 1 c In returning the hand throw lever to the latch stand the operation is similar to the clockwise stroke in that again at slightly beyond mid stroke the toggle spring through its action on the main crank completes the motion of the switch points and the rotation of the main shaft As the hand throw lever is returned to the latch stand cam B on the lever hub engages with stud D Figure 4 1 d forcing the lever back into its original position on the shaft with stud D Figure 4 1 4 in the rear track of the shaft collar This allows the interlocking lever to rotate counter clockwise to close the latch stand and allow tue machine to return to power operation 4 4 HANDLEVER CUTOUT DEVICE The handlever cutout switch COS is opened when the padlock is removed from the handlever locking device and the device is pulled out to clear the handlever This switch COS will break the electrical circuit thus preventing the motor reversing contactor to energize This switch also supplies indication through an open circuit that the machine is in the manual mode of operation The handlever cutout switch can be locked in the open position
50. terial and lens location when ordering See tabulation below LENS Green Yellow Red Green Yellow Red Lunar White Glass Glass Glass Plastic Plastic Plastic Plastic J053142 4053151 7053141 7531506 2531507 1531505 2531504 6231 19 20 UNION SWITCH 8 SIGNAL TERMINAL LENS MRT lt gt BO COLOR LENS COLOR Ge Qe 8 sens 63 cocos o 3531507 ei PURASTIC OPTACAL Caen 1531506 een swiss Reo 6 rra END END TEA PARIS OF PLUGS Fok uuRIMG PURPOSES 1 H2LUAS 2041227 t r TIALS DETAIL B 5 SCALE y 39 A 3 oa IN 7 2 OF ARROW NORMAL NORMAL AFELICATIN NAME PLATE HAND THPCW SIDE 55 4 2 CIRCUIT Di iF MIA FOR COVEF Aar LIGHTS 75 D 1 N as 15 Se Le REF 3 10 BACK PLANE ii LENS 4 SOSA 10 FRONT amp BACK SEE DETAIL B IT uoiow BOTH ENDS SLIOA SEE DETAILS SECTION A A 31113 MS W 4 Drawing 451614 Sh 44 Rev 8 Eo es Mere A 5 Color Assembly Wita Two Position Lishts UNION SWITCH amp SIGNAL Q COVER ASSEMBLY WITH
51. that lowers the machine b profile to 7 5 16 above the top of the ties The same machine and operating rod can be used in right hand or left hand applications The typical 4 track layout has a straight operating rod which connects to the basket The stroke of the operating rod is internally adjustable from 3 1 2 to 6 and allows the 4 to be utilized with different switch throws The major components of the YM 4 switch machine Figure 1 1 are the case motor clutch gearbox main shaft assembly main crank assembly toggle spring assembly hand throw assembly and controls wire harness Two pairs of independently adjustable control switches are provided pair consists of SPDT switches which are used in a holding circuit and one pair of switches which are used for motor cutout non vital point indication and local indication lights Also optional with NWP RWP relay control A hand throw lever is provided to operate the switch machine when manual operation becomes necessary or desired An optional cover is available with position indicator lights bulbs are to be ordered separately Either cover can be removed to provide convenient access for maintenance and adjustments The serial number is stamped on the mounting flange see Figure 1 1 1 3 SPECIFICATIONS 1 3 1 Physical Characteristics a Overall Dimensions See Figure 1 2 b Weight Approx 450 pounds 1 3 2 Operating Characteristics a Str
52. to complete its stroke after the toggle spring goes over dead center without reaction on the hand throw lever The hand throw lever does not move during power operation of the switch although the main shaft does rotate Figure 4 1 illustrates the disengagement feature of the hand throw lever With the hand throw lever in the latch stand the stud D in the lever hub is positioned in the rear track of the main shaft hand throw shaft collar P Figure 4 1 a shows the stud D in this position and the hand throw snaft in the position that corresponds with the switch operating rod in its out position near switch point open During operation of the hand throw lever Figure 4 1 a and b lever stud D engages the collar P rotating the main shaft hand throw shaft clockwise At slightly beyond mid stroke however the toggle action becomes effective in completing the switch stroke Tnrough the crank and bevel gear arrangement the main shaft hand throw shaft is thereby rotated the remainder of the stoke by the spring force with no reaction on the lever It should be noted that while the lever stud D is still in the rear track of the collar P Figure 4 1 b the hand throw lever cau be returned to the latch stand without further operating the hand throw lever However continuation of the lever stroke clockwise from the position shown in b engages cam on the lever hub with the shifting stud C forcing the hand throw lever out into the out po
53. troke the toggle spring assists the shift to point closure CAUTION The YM 4 switch machine is designed to operate in 2 seconds Therefore the trailing speeds should not force the machine to throw in less than 2 seconds 5 MPH Trailing speeds in excess of this time will produce abnormally high forces within the machine thus decreasing the life of the machine To avoid personal injury or damage to the machine the hand throw lever must be in its latch with the foot pedal closed during trailing operation 6231 p 16 4 UNION SWITCH 8 SIGNAL gt FIELD MAINTENANCE 5 1 GENERAL This section outlines recommended procedures for periodic inspection and maintenance of the YM 4 switch machine WARNING Remove all operating power at the nearest local break point to avoid personal injury 1 Connection to the switch points including the holding force of switch rod should be checked for proper adjustment Refer to paragraph 2 4 2 Check to insure all bolts are tight inside the switch machine i e 8 bolts holding plates for main crank 2 bolts for toggle spring 4 bolts for hand lever support 4 bolts for gear box 1 cotter pin for toggle spring 3 Periodically check the electrical and control adjustments paragraph 2 5 and hand lever cutout switch paragraph 2 3 for proper operation in accordance with instructions 4 No maintenance be performed on the internal compone
54. wn electrically refer to para 4 2 or manually refer to 4 3 points are held in position 600 in toggle spring mounted on the main crank which is compressed 1 2 3 inches NOTE clutch is deenergized disengaged when the motor is deenerqized to facilitate trailing and hand operation The toggle spring maintains a minimum holding force to the closed points of 1 000 pounds switch throw is adjustable from 3 1 2 with basket to a full 6 inches Operating time is approximately 2 seconds Motor control and switch indication are obtained from contacts operated by cams the main crank and are directly associated with the switch position I The following paragraphs provide brief operating principles of the YM 4 Switch Machine This information may be helpful in troubleshooting and maintaining the Switch machine 4 2 SWITCH OPERATING MECHANISM See Figure 1 1 The electric motor controlled by an electromagnetic reversing contactor drives the gear box through an electromagnetic clutch An output gear in the gear box meshes with the spur gear on the main shaft assembly rotating the main shaft 1800 Through set of bevel gears the main shaft drives the main crank rotating the main crank 909 operating rod which is connected to the eyebolt on the main crank is then driven a predetermined distance During the first half 45 of the switch operating stroke the toggle spring is compr
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