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Specifications/Drawings
   Loco, EMU & Power Supply
      Other important links for Loco
         SMI/MS/TC
            Serial number wise
               Master list of Special Maintenance Instructions
                  SMI no. 201 to 300


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SMI no. 201 to 300

SMI no. 201 to 300
 

SN

SMI no.                     

Description

Date

File no.

195. ELRS/SMI/201 Rev’0’

Grease Pan for Pantograph type AM12 or Similar Design

 ...04.1998  EL/2.2.1
196. ELRS/SMI/202 Rev’1’

Modified Trouble shooting Instructions for “Tripping through QOP’ cases.

 11.09.1998  EL/3.1.3
197. ELRS/SMI/203 Rev’0’

 25 KV condenser bushing on AC Electric Locos

 19.05.1998 EL/3.2.21
198. ELRS/SMI/204 Rev’0’

Remedial Measures To Main Problems Of VCB Type 20CB Of GEC ALSTHOM Make

 22.05.1998  EL/3.2.61
199. ELRS/SMI/205 Rev’0’

Procedure for tightening of axle cap fixation bolts of Traction Motor type TAO-659.

 31.08.1998  EL/1.3.10
200. ELRS/SMI/206 Rev’0’ Use of Helisert Insert to prevent TAO-659 Motor Gear case screws from falling.  8.10.98  EL/3.2.115
201. ELRS/SMI/207 Rev’0’

Main dimensional checks of suspension tube while mounting on magnet frame of Traction Motor type  HS15250A.

 .99  EL/3.2.172
202. ELRS/SMI/208 Rev’0’ Maintenance schedules for vacuum circuit breaker (VCB) type 20 CB of M/s. ALSTOM 22.3.99  EL/3.2.61
203. ELRS/SMI/209 Rev’0’

Provision of silicon rubber compound RTV-738 in the terminal box of three phase asynchronous traction motor type 6FRA6068

31.5.99 EL/3.2.182
204. ELRS/SMI/210 Rev’0’ Modified menthod of VPI for three phase asynchronous traction motor type 6FRA6068. 31.5.99 EL/3.2.182
205. ELRS/SMI/211 Rev’0’

Improved method of brazing of terminal bus rods on respective phase ring of the stator windings of three phase traction motor type 6FRA6068.

31.5.99 EL/3.2.182
206.         ELRS/SMI/212 Rev’0’ Implementation of RDSOs modification sheet no. RDSO/WAM4/174 & 194 on traction motor type TAO-659 for freight & passenger electric locomotives application respectively. 17.6.99 EL/3.2.5.
207.         ELRS/SMI/213(REV0) Guidelines on maintenance procedure and schedule to be followed for CBC and draft gear assembly 12.7.99 EL/3.2.119
208.         ELRS/SMI/214(Rev.0)  Standardization of the gauge & instructions for measuring loco wheel diameter. (B.G ) 25.10.99 EL/3.2.13
209.         ELRS/SMI/215(Rev.0) Readjustment of sander pipe nozzle height fitted on WAG7 loco. 24.12.99 EL/3.1.38
210.         ELRS/SMI/216(Rev.0) Maintenance practices schedules, dos & donts to be followed for axle box assembly WAP1/,4,WAG7 class of electric locomotives. 14.1.2000 EL/3.2.108
211.         ELRS/SMI/217(Rev.01) Dated:21.08.2025 Remedial measures to arrest the failures of MSU of traction motor type HS15250A/TAO-659 due to the dropping of its adjustment washer/ failure of its taper roller suspension bearings. 21.08.2025 EL/1.3.10(MSU)
212.         ELRS/SMI/218(Rev.0) Improvement in the reliability of plain sleeve suspension bearing oil from various locations. 19.4.2000 EL/1.3.10
213.         ELRS/SMI/219 Rev.0) Burning of PCB on Air Dryer 21.6.2000 EL/3.2.19
214.         ELRS/SMI/220 (Rev.1) Preventive measures to arrest the failures of commutator end armature bearing type NH 324 of traction motor type HS 15250A due to shear off /breakage of its locking HEX head bolts, size M16 X 35L 19.7.2000 EL/3.2.172
215.         ELRS/SMI/0221 (Rev0) The maintenance practice to be followed during AOH maintenance schedule of MSU of traction motor HS 15250A/TAO - 659 24.7.2000 EL/3.2.172
216.         ELRS/SMI/0222 (Rev.0) Special instruction for essential requirement of facilities to rewind 3 phase AC auxiliary motors used in electric locomotives in loco shed and rewinding shops. 20.9.2000 EL/3.2.70
217.         ELRS/SMI/0223 (Rev.0) Replacement overhauling kit for double bottle vacuum circuit breaker type 20 CB Alstom make during AOH, IOH and POH.  31.01.2001 EL/3.2.61
218.         ELRS/SMI/0224 (Rev.0) Reliability improve measure for operative coils (solenoids) in the equipment like air blast circuit breakers reverses/CTFs contactors (EP/EM) & electrovacves of Electric locomotive 15-1-01 EL/2.2.51
219.         ELRS/SMI/0225 (Rev.0) Improvement in the performance of eQualiser spring seat on co.co trimount bogies of WAM4/WAG5/WCG2/WCAM1 CLASS OF Electric loco 15-1-01 EL/3.2.13
220.         ELRS/SMI/0226 (Rev.0) Fixture for checking of concentricity & parallelism to suspension tubes of HITACHI (175-15250 A TMS) DRG no. 10 P701-898 28.1.02 EL/1.3.10
221.         ELRS/SMI/0227 Maintenance Instructions in regard to link compensating & equalising beam of WAG7, WCAM3, WCAG1 loc o bogie 00.8.02 EL/3.1.41
222.         ELRS/SMI/0228 Assembly of electrical terminations of traction winding bushings 2u1_2v1,2u2_2v2,2u2_2v3,2u4_2v4 in indigenously manufactured  transformers type lot_6500/lot_7500 used in 3phase drive locomotives type WAG9/WAP5 06.08.02 EL/3.2.1_3phace
223.         ELRS/SMI/0229(Rev.-0) Tightness of enclosure ring fixed on main gear wheel of Hitachi Wheel Set. Aug.,2003/ 16..9.03 E>/1.3.10/2
224.         ELRS/SMI/0230 (Rev.-0) Guideline of maintenance of Capacitor in Single Phase AC Electric Locomotive. 28.5.04 EL/3.2.185
225.         ELRS/SMI/0231(Rev.0) Maintenance Practices Schedules Dos And donot to be Followed for P1&P2 29.11.04 EL/3.2.19/ 2
226.         ELRS/SMI/0232 (Rev.0) Improvement in the reliability of pulse generator of speedometer. 31.1.05 EL/2.2.9/3
227.         ELRS/SMI/0233 (Rev.0) Ultrasonic testing procedure for compensating        beams, equalizer beam and link for WAG7, WCAM3 & WCAG1 locomotives 18 .8.05 EL/3.2.13/6
228.         ELRS/SMI/0234 (REV.0) Regarding reliability improvement measures to be taken CTF/ reverser & up gradation to 1500 AMPS high capacity CTF/ reverser. 12.5.05

EL/3.2.9

 

229.         ELRS/SMI/0235 (REV.0) Schedule for extended IOH/AOH for electric locos after completion of 32 yrs 10.6.05

EL/3.6.1

 

230.        

ELRS/SMI/0236 (Rev.1) Annexure A

Overhauling kits for AOH/IOH/POH of single bottle VCBs 31.12.12

EL/3.2.61

 

231.         ELRS/SMI/0237 (REV.0) Modified layout of cables from transformer to RSI blocks to avoid chances of on line failure/fire in conventional Electric Locomotive 20.1.06

EL/2.2.4

 

232.         ELRS/SMI/0238 (REV.0) Setting of QLM relays for WAG5/WAM4 locos fitted with 3900 KVA transformer 20.3..06 EL/3.2.10/1
233.         RDSO/EL/SMI/0239 (Rev.0) Winding scheme for oil cooling blower motors different makes used on 3 phase drive Locomotive 01.9.06 EL/3.2.70/2
234.         RDSO/2006/EL/SMI/ 0240 Rev.1 Measures to improve the quality of smoothing reactors (sl.42/30) during manufacturing / Maintenance 2.7.24 EL/3.2.3
235.         RDSO/EL/SMI/0241 (REV.0) Provision of Modified traction link flance mounting bolts in WAG9& WAP7 3phase locomotives. 08.11.06 EL/3.1.35/2
236.        

 

RDSO/EL/SMI/0242 (REV’3’)

 

 

Maintenance Practices of Under slung Compressor mounted on WAP-5, WAP-7 & WAG-9/WAG-9H/HC class of Electric Locomotive to avoid falling down  of the compressor unit on line. Standardization of safety wire rope arrangement of under slung compressor mounted on WAP-5, WAP-7 & WAG-9/WAG-9H/HC class of Electric Locomotives

02.02.2023

 

EL/3.2.15/3-phase
237.         RDSO/2006/SMI/243 (Rev.0) SMI for JIGs & Fixtures for Brush Holders and BHRR assemblies of TM type TA0659 and HS 15250A of Electric Locomotives. 22.3.07 EL/3.2.100
238.         RDSO/2007/EL/SMI/244 (Rev.0) Provision of additional safety sling on brake lever  of WAP 7 / WAG 9 Locomotive. 2.4.07 EL/3.2.19(3-Phase)
239.         RDSO/2007/EL/SMI/245 (Rev.0) Ultrasonic test procedure to detect crack at the key groove portion of the DJ flange shaft 29.06.07 EL/2.2.2
240.         RDSO/2007/EL/SMI/246 (Rev.2) Maintenance of Axle Box bearing for WAP7 & WAG 9 /WAG9H locos 26.11.15 EL/3.2.108(3-Phase)
241.         SMI/247 Rev ’0’ Failure improvement of Valve Set in Power Converter for 3-phase electric locos 21.11.07 EL/11.5.5/5
242.         SMI/248 Rev ’0’  Maintenance of Earthing System in 3-phase electric locomotives type WAP5, WAP7 & WAG9. 22.11.07 EL/3.1.35/2
243.         SMI/249 Rev ’0’ Test procedure, Lower limit and process of adding inhibitor in transformer oil of inservice traction transformer 28.11.07 EL/3.2.1-3
244.         SMI/250 Rev ’0’ Mounting of energy regenerated during braking in WAP5/WAP7/WAG9 electric locos for Clean Development Mechanism under Kyoto protocol. 22.01.08 EL/ 0.9.3
245.        

SMI/251 Rev ’2’

Drawing no. 1209-01.416-063

Maintenance instructions of Brake Hanger for WAG9 & WAG9H Electric locomotives 31.05.2018 EL/3.1.35/2(TBU)
246.         SMI/252 Rev ’0’ Testing of Weigand speed sensor fitted with traction motor in WAG9, WAG9H, WAP7 & WAP5 locos. 01.05.08 EL/ 3.1.35/2
247.         SMI/253 Rev ’0’ Periodic Maintenance instructions for improvement in reliability of Twin Beam Headlight and DC-DC Converter during major schedules of electric locomotive 28.04.08 EL/6.11.1
248.         SMI/255 Rev ’0’ Air delivery measurement in 3-phase locomotive to ascertain proper cooling and pressurization of machine room. 06.05.09 EL/11.5.5/5
249.         SMI/256 Rev ’0’ Testing of WRE gate unit card of Auxiliary Converter of 3-phase electric locos to analyze failure of gate unit card. 19.05.09 EL/11.5.5/2
250.         SMI/257 Rev ’0’ Improvement in reliability of gate unit cards of power converter of 3-phase locos by measuring dBm level of QFBR-1478C transmitter (Component No. 151) 22.05.09 EL/11.5.5/2
251.         RDSO/2009/EL/SMI/ 0258 Rev ’0’ Improvement in reliability of LWL cards (AFB635A01)and bus coupler cards (UFB660A01&UFB701A01) of 3 phase locomotives by testing QFBR-1478C & 2478C  transmitters & recivers. 26-08-09 EL/11.5.5./5
252.         RDSO/2009/EL/SMI/ 0259 Rev.0 Maintence & use of materials for traction link & housing  for 3phase electric locomotive. 16-12-09 EL/3.35./12
253.         RDSO/2009/EL/SMI/ 0260 Rev 0  Instruction for development of testing setup of signal conditioning card (SAP) & senders for 3phase electric locomotives 30-10-09 EL/11.5.5./3
254.         RDSO/2009/EL/SMI/ 0261 Rev 0 Repairing  & testing of WRE modules of auxiliary converter for 3 phase electric locomotives 15-12-09 EL/11.5.5./2
255.         RDSO/2010/EL/SMI/ 0262 Rev.0 Detection of rotor bar crack & stator defect for traction motor type 6FRA 6068 used on WAG9 / WAP7 locomotives. 10-06-10 EL/3.2.182
256.         RDSO/2010/EL/SMI/ 0263 Rev 0 Instructions for development of testing setup of gate unit of traction converter for 3 phase electric locomotive. 14-06-10 EL/11.5.5./5
...... RDSO/2010/EL/SMI/ 0264 Rev 0

Use and Maintenance/Fitment Practices of Equalizer & Compensating Beam Pins, Bushes & Cotters in WAG7 Locomotives.

15-07-10 EL/3.2.13/6
257. RDSO/2010/EL/SMI/ 0265 Rev 0 Procedure of repairing valve sets of traction converter of three phase Electric Locomotives. 23.12.10 EL/11.5.5/5
258.

RDSO/2011/EL/SMI/0266(Rv’0’)

Provision of compensating spacer ring between wheel disc hub and abutment piece (RWE) to eliminate possibility of shifting of MSU assembly of TM type 4303BY/C1005 (Fuji Design) of BHEL/CGL make used in AC-EMU. 31.03.11 EL/1.3.10
259.

RDSO/2011/EL/SMI/0269(Rev’1’)

Maintenance of  Traction Motor support plate and Bogie nose to prevent crack/ breakage of  Traction  Motor support plate (Holder for Traction Motor suspension). 16.03.2016 EL/3.1.35/2(Brake Lever)
260.

RDSO/2011/EL/SMI/0270

(Rev ‘0’)

Special Maintenance Instruction for Axial Wear of serviceable Spheriblocs used in WAP5/WAP7/WAG9 Locomotives 17.11.2011 EL/3.1.35/12
261.

RDSO/2011/EL/SMI/0271

(Rev ‘0’)

Special Maintenance Instruction for testing of brazed joints of interconnectors of field coils and compolescoils in traction motors type HS 15250A and TAO 659 using high current injection test.

17.11.2011

EL/3.2.172
262.

RDSO/2011/EL/SMI/0272

(Rev ‘0’)

Use of extreme pressure lubricant paste for shafting of rotors of traction motors tupe 6FRA6068 and 6FXA7059 to prevent damage to stampings and scoring of shaftsat the time of removal of shaft

02.12.2011

EL/3.2.182

263.

RDSO/2011/ELlSMI/0273(Rev ’0’)

Detection of rotation of outer race of bearing and assembly components in 3 Phase traction motors type 6FRA6068

 23.12.2011 EL/3.2.182
264. RDSO/2012/EL/SMI/0274(Rev.’0’) Preventive measures to check flash over of roof insulators and roof line fittings of electrical locomotives, 29.03.2012 EL/2.2.1
265.

RDSO/2012/EL/SMI/0275 (Rev ’0’)

RDSO/2012/EL/SMI/0275 (Rev ’01’)

Special maintenance Instruction for measurement of millivolt drop of Contractor no.218 and 126.

Special maintenance Instruction for measurement of milli volt drop of Contactor numbers 218,126, 136.4 & 130.1.

22.03.2012

19.09.2024

EL/3.1.35/2

RDSO-EL/0/SYS(RLAY)/1/2020-O/o PED/SE/RDSO

266.

RDSO/2012/EL/SMI/276 Rev ‘0’

Maintenance instruction of Dynamic braking excitation contactor C145 auxiliary contact for 25 kv ac electric locomotives

27.07.2012

EL/4.2.15

267.

RDSO/2013/EL/SMI/278(Rev.0)

Amendment-1 dtd. 8.3.2021

Amendment-2 dtd. 29.3.2022

Instruction for fitment of Traction Motor drive end bearing NU2236 used in three phase traction motors type 6FRA6068

24.12.2013

8.3.2021

29.3.2022

EL/2.2.13
268. RDSO/2014/EL/SMI/0279(Rev.0) Removal of orifice ring provided in the inlet and outlet flange of converter oil cooler (COC) and transformer oil cooler (TOC) of three phase oil cooler assembly manufactured and supplied by M/s APOLLO. 24.01.2014 EL/3.2.1/Radiator
 269.

RDSO/2014/EL/SMI/0280 Rev.0

Maintenance instructions to prevent crack/ breakage of TM mounting bogie nose in WAP/WAG9 locomotives

05.05.2014 EL/3.1.35/2(Brake Lever)
270.

RDSO/2014/EL/SMI/0281(Rev.0)

Use of loctitc in place of RTV 1080 to seal upper and lower insulators of  Schnider make  single bottle VCBs type 22cb 27.06.2014 EL/3.2.61

271.

 

 

RDSO/2014/EL/SMI/0282(Rev.0)

 

Use of increased capacity silica gel breathers in N-32 tap changers and transformers of conventional electric locomotives to meet the requirement of increased periodicity of schedule maintenance. 20.01.2015 EL/3.2.1
 272 RDSO/2015/EL/SMI/0283(Rev.0)  Special Maintenance Instruction to prevent  failing of brake hanger in middle axles of WAP-7 Locomotives  16.09.2014  EL/3.1.35/2
273

RDSO/2015/EL/SMI/0284(Rev.0)

 Review of setting of Relay Q20 to reduce the traction motor flashing cases  11.09.2015  EL/3.2.10/Gen
274 RDSO/2015/EL/SMI/0285(Rev.0)

Re-application of RTV 1080 sealant in Schneider make VCBs fitted in conventional and 3-phase locomotives.

 23.09.2015  EL/3.2.61/Gen.
275 RDSO/2016/EL/SMI/0286(Rev.0) Special Maintenance Instruction for maintenance of filters of Oil Cooling Blower (OCB), Machine Room Blower (MRB) and Traction Motor Blower (TMB) for 3- phase Electric Locomotives 09.06.2016  EL/3.2.176/2
276 RDSO/2016/EL/SMI/0287(Rev.1) Special Maintenance Instruction for maintenance of Radiators of Oil Cooling Unit of 3- Phase Electric Locomotives. 15.06.2018 EL/3.2.176/2
277 RDSO/2016/EL/SMI/0288(Rev.0) Technical Scope of work for Annual Maintenance Contract (AMC) of Microprocessor based Control & fault diagnostic System (MPCS) 21.06.2016 EL/4.2.15/AMC
278 RDSO/2016/EL/SMI/0289(Rev.0) Technical scope of works for Annual Maintenance Contract (AMC) of Microprocessor based Electronic Speed cum Energy Monitoring System (ESMON) fitted in Electric Locomotives and EMUs/MEMUs. 21.06.2016 EL/2.2.9/10
279 RDSO/2016/EL/SMI/0290(Rev.0) Technical Scope of work for Annual Maintenance Contract (AMC)of vigilance control device (VCD)to be used in 25kv ac tap changer locomotive. 21.06.2016 EL/3.1.14
280 RDSO/2016/EL/SMI/0291(Rev.0) Technical Scope of work for Annual Maintenance Contract (AMC)of 180 KVA Static Inverter (SIV)fitted in conventional tap changer electric locomotives. 21.06.2016 EL/1.2.9.1
281 RDSO/2016/EL/SMI/0292(Rev.0)

Special Maintenance Instructions (SMI) for AM-92 and IR-03H type Pantograph.

27.06.2016 EL/2.2.1/1
282

RDSO/2016/EL/SMI/0293(Rev.1)

Special Maintenance Instructions for roof mounted air conditioning system for cabs of Electric Locomotives and EMU/Vande Bharat. 25.02.2025 EL/3.1.10/2 (Cab AC)
283 RDSO/2016/EL/SMI/0294(Rev.0)  Technical Scope of work for Annual Maintenance Contaract(AMC) of GTO based Traction Converter(SR), Auxiliary converters (BUR) and MICAS based Vehicle control unit (VCU) of Three Phase Locomotives

 

16.08.2016

 EL/11.5.5/1
284 RDSO/2016/EL/SMI/0295(Rev.0) Special Maintenance Instruction for maintenance of Distributed Power Wireless Control System(DPWCS) for AC Tap-changer & 3- Phase Electric Locomotives. 16.08.2016 EL/3.1.3/DPWCS
285 RDSO/2016/EL/SMI/0296(Rev.0) Standardisation of scheduled maintenance practices for 1750 lpm capacity lubricated reciprocating compressors for Electric Locomotives. 02.09.2016 EL/3.2.15/3-Phase
286 RDSO/2016/EL/SMI/0297(Rev.1) Operational, Maintenance and Trouble Shooting of 2x500 kVA, IGBT based Hotel Load Converter of WAP7 locomotives 13.11.2024 EL/11.5.5/6
287 RDSO/2016/EL/SMI/0298(Rev.0) Technical Scope of Work for annual maintenance contract of brake system fitted in 3 phase electric locomotive 06.10.2016 EL/3.2.19/3-Phase
288 RDSO/2016/EL/SMI/0299(Rev.0) Technical Scope of Work for annual maintenance contract for 1750 LPM  capacity lubricated copressors of Electric Locomotives 05.10.2016 EL/3.2.15/3-Phase
289 RDSO/2016/EL/SMI/0300(Rev.0) Defining Periodicity of overhauling schedule of MSU of WAG9/WAG9H/WAP7 locomotives to prevent premature MSU failiure 02.11.2016 EL/1.3.10
   

For others, please click on below link 

SMI no. 1 to 100

 

SMI no. 101 to 200

 

SMI no. 301 onwards

   
 

 

 



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