BOGIES AND SUSPENSION - South Central Railway

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CHAPTER 6 – BOGIES AND SUSPENSION K. REPAIR AND MAINTENANCE IN SICK LINE WAGON MAINTENANCE MANUAL Page 118 of 121 i. Inside Crown of the Axle Box should be checked for wear at the time of repacking. Concave wear on the inside Crown should not be permitted under any circumstances. ii. The dust shield should be examined during re-packing of axle boxes in sick lines. If found worn, torn, or if it has lost its stiffness, it should be replaced. iii. Axle boxes with rejectable defects to be attended as given in para 605 I(b). iv. Bearing brass to be examined and repaired as given in para 605 N(g). v. Periodicity of re-packing and oiling to be followed as given in para 605 -O. vi. Procedure of re-packing of axle boxes to be done as given in para 605 P. vii. Important do’s & don’ts in re-packing of axle boxes to be followed as given in para 605 R. viii. Examination and maintenance of Axle, wheels and tyres should be done as per IRCA Part III (2000) Rule 2.8. L. REPAIR AND MAINTENANCE DURING ROH & POH The following additional work is also to be carried out during maintenance at the time of ROH and POH including the work mentioned in para J. i. The dust shield should be examined, every time the axle box is repacked during POH. If found worn, torn, or if it has lost its stiffness, it should be replaced. ii. Axle boxes should be examined and inspected on open lines for defects. Rejectable defects of axle box to be attended as given in para 605 I(b). iii. The elongated/oval cut holes on face plate should not allowed. Proper riveting of the face plate to be done with axle box. iv. Bearing brass to be examined and repaired as given in para 605 N(g). v. Repair of the journal to be done as per IRCA Part III (2000). vi. Periodicity of repacking and oiling to be followed as given in para 605-O. vii. Procedure of re-packing of axle boxes to be done as given in para 605 P. viii. Proper attention must be paid to the examination and riveting of the face plate at the time of POH in workshop. Important do’s & don’ts in re-packing of axle boxes to be followed as given in para 605 R. ix. Procedure for white metalling to be done as given in para 605 S. x. Examination and maintenance of Axle, wheels and tyres should be done as per IRCA Part III (2000).
CHAPTER 6 – BOGIES AND SUSPENSION 607. IMPORTANT DIMENSIONS RELATED TO SUSPENSION (Unless otherwise indicated, the dimensions are in mm) Sr. No. Description MG BG 1. Scroll iron eye hole dia max. 23.65 mm 29.65 mm Shackle pin-dia 21.6 mm 27.6 mm Max. Clearance between 1.05 mm 1.05 mm Shackle pin and scroll iron when new Max. clearance between 1.15 mm 1.15 mm. shackle pin and spring eye when new 20 mm 25 mm Shackle plate thickness 23.65 mm 28.65 mm Shackle plate eye hole dia Washer 6 mm 4 mm 2. plated IRS type spring for 4 wheeler wagons (MG) plated non standard sp- 76 mm ring for 4 wheeler wagons plated non standard for 4 & 6 wheeler wagons plated IRCA type plated BG spring for 4 wheelers plated BOX spring for UIC bogies 3. Spring buckle packing pieces step sizes Pressed steel axle guard plate thickness 4. Horn cheek thickness Leg size Height Rivet hole dia Distance of centre line of holes from bent corner 5. Tie bar thickness Rivet hole dia Axle Guard packing plate Edge radius WAGON MAINTENANCE MANUAL Free camber 50.8(+5/-0)mm 76 mm 86 mm 51 mm Buffer Height adjustment. 9, 19, 26 & 35 mm 8 mm 12 mm 82x36 317 mm 21.5 mm 47 mm 12 mm 17.5 mm 387x55x12 (thick) 6 mm 75.5(+6/-0) mm 47(+6/-0) mm 11,26, 37 mm 10 mm 19 mm 96x48(for 16 t) 95 x 64 (for 22t) 419 (for 16t), 432 (for 22t) 21.5 mm 57 mm Page 119 of 121 20 (for 22t ISA 50 x 50 x 6 (16.3t) 17.5 mm 536x75x10 (thick) 10 mm
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BOGIES AND SUSPENSION - South Central Railway

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