CnW Maintenance Manual 490-491 PDF

APPENDIX – II - LIST OF IMPORTANT MODIFICATIONS TO BE CARRIED Page 1 of 2 OUT ON FREIGHT STOCK APPENDIX “II” LIST OF IMPORTANT MODIFICATIONS TO BE CARRIED...

APPENDIX – II - LIST OF IMPORTANT MODIFICATIONS TO BE CARRIED Page 1 of 2 OUT ON FREIGHT STOCK APPENDIX “II” LIST OF IMPORTANT MODIFICATIONS TO BE CARRIED OUT ON FREIGHT STOCK (IRCA letter No. M/129/Policy/W dated 12.4.99 & Rly Bd. L. No. 98/M(N)/951/11 dt.6.4.99) I. WHEELS, AXLES, BEARINGS SN Item Description RDSO’s Reference To be done in Sick ROH POH New line Built 1. Adoption of worn wheel profile for MW/CWSC/58 YES YES YES YES all BG wheels dt.18.3.92 2. Additional Intermediate Profile for RDSO letter no. ----- Yes Yes ----- wagon wheel. MW/WA/GENL. Dated 13/15.01.2010 3. Stamping of Overhauling date of RDSO letter no. ----- ---- Yes ----- CTRB on Backing Ring MW/WA/GENL Dated 26.04.2012 4. Non Use of Seal Wears Rings with 1. RDSO letter no. ----- ---- Yes ----- vent holes MW.RB.GENL. Dated 15/18.06.2012 2. RDSO letter no. MW/RB/BOXN Dated 08/12.08.2002 5. Non Use of Backing Rings with Vent 1. RDSO letter no. ----- ----- Yes ----- holes MW/RB/BOXN Dated 20.12.1993 2. RDSO letter no. MW/RB/BOXN Dated 02.06.1995 6. Phasing out of wheels having Sprag Railway Board’s letter Holes from freight stock. no. 2000/M ----- Yes Yes ----- (N)/960/1/Pt Dated 03.09.2008 II. WAGON SUPER STRUCTURE AND BRAKE RIGGING 1. Strengthening of horizontal lever MW/BOXN/MAINT/d NO YES YES YES support (large on BOXN/BCNA t.24.1.94 wagons) 2. Provision of anti rotation lug on MW/BOXN/MAINT/d YES YES YES YES empty tie rod coupling nut of t.15.1.94 BOXN/BCN wagons 3. Provision of stiffener angle on axle MW/CWSC/Secretaria NO NO YES YES guard of BVZC wagon t dt. 23.11.93 & 28.2.94 4. Increase in the diameter of control MW/SLA dt NO YES YES YES rod from 28 to 32 mm of IRSA-600 23/29.12.93 & 10.5.94 Slack Adjuster 5. Provision of side bracket with link on MW/ACT/BG dt. NO YES YES YES BRH/BRN wagons to facilitate 27.5.94 securing of steel plant consignment to wagon body WAGON MAINTENANCE MANUAL APPENDIX – II - LIST OF IMPORTANT MODIFICATIONS TO BE CARRIED Page 2 of 2 OUT ON FREIGHT STOCK SN Item Description RDSO’s Reference To be done in Sick ROH POH New line Built 6. Modification to empty/load spindle MW/BTPN dt. 1.11.94 NO NO YES YES bracket 7. Provision of extra roller type pull rod NO YES YES Not supports as per drg. WD-90016-S/1 under Alt 12 manuf acture 8. Underframe strengthening of all MW/BRN dt 12.12.98 NO NO YES Not welded BRN wagons under manuf acture 9. Modification of existing door hold MW/DOM/BOBR NO YES YES YES stiffener of BOBRN dt. 14.6.90 10. Modification to anchoring tee joint MW/BTPN NO NO YES NA on BTPN wagons dt.24/26.8.98 III. COUPLER & DRAFT GEARS 1. Fitment of modified striker casting MW/CPL/BG/HT NO NO YES YES wear plate in CBC dt.6.1.88 IV. AIR BRAKE SYSTEM 1. Standardisation of isolating handle MW/APB/TP/M NO YES YES YES cock on DV dt.27.9.88 2. Modification to filtering arrangement MW/APB/TP/M NO YES YES YES of C3W DV of SCL dt.24.11.88 3. Provision of additional APD to DV MW/APB/TP/M NO YES YES YES dt.1/6-5-92 4. Modification to quick release valve MW/APB/TP/M NO YES YES YES of DV of Escorts make dt.3/9-7-92 5. Strengthening of APD for DV MW/APB/TP/M NO NO YES YES dt.15.7.92 6. Modification to the piping of BVZC MW/APB/TP/M NO YES YES YES wagon for fitment of quick coupling dt.3/6-12-93 and detachable pressure gauge 7. Modification to hose coupling MW/APB 8/10-4-94 NO YES YES YES support 8. Modification to the locking MW/SLA NO YES YES YES arrangement of barrel with leader nut dt. 20/21-7-88 casing of DRV2-600 WAGON MAINTENANCE MANUAL