BOGIES AND SUSPENSION - South Central Railway
BOGIES AND SUSPENSION - South Central Railway
BOGIES AND SUSPENSION - South Central Railway
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CHAPTER 6 – <strong>BOGIES</strong> <strong>AND</strong> <strong>SUSPENSION</strong><br />
b) AXLE<br />
WAGON MAINTENANCE MANUAL<br />
Page 5 of 121<br />
Axles have to be subjected to ultrasonic testing during ROH/POH or<br />
whenever the wagons are sent to the shops. Wheel sets whose axles have<br />
under gone ultrasonic testing shall be stamped on the hub fillet as per RDSO’s<br />
drawing no. WD-81089-S/1.<br />
Axle end holes should be properly cleaned and lubricated before reuse.<br />
Threads should be checked with standard thread gauge. Reclamation of axles<br />
with defective cap screw holes shall be carried out as per instructions given in<br />
RDSO letter MW/WA/Genl dated 8.5.92.<br />
Some axles on CASNUB bogies have been reported to have grazing on<br />
account of Main pull rod. This can be reclaimed in case notches/scratch/nicks<br />
are less than 5 mm as per instructions issued vide RDSO’s letter No.<br />
MW/WA/GENL dated 20.12.91. The reclamation of the axle, for reasons not<br />
indicated in the above quoted letter, is not permitted.<br />
Whenever axles are renewed, the workshop shall punch the following<br />
particulars in 5 mm letters on the axle end :-<br />
i. Serial No.<br />
ii. Workshop code where pressing has been done<br />
iii. Date of pressing<br />
iv. Journal centre<br />
v. Pressing on pressure in tonnes (Both ends)<br />
After rediscing, the stamping shall be as per RDSO Drg No. WD-<br />
87080/S-1.<br />
c) AXLE BOX ADAPTER, RETAINER BOLT & SIDE FRAME KEY<br />
ASSEMBLY<br />
CASNUB 22W<br />
Initial lot of CASNUB 22W type bogies were provided with<br />
cylindrical roller bearing axle box on the wheel sets. However, cartridge taper<br />
roller bearing was soon standardised having adapter & adapter retainer bolt.<br />
The CASNUB 22W bogies are provided with wide jaw adapter as per RDSO<br />
sketch No. Sk-78527 but without elastomeric pads with wheel sets to Drg. No.<br />
WA/WL-4902, Sk-68512 and WD-89025-S/1 with retainer bolts to Drg No.<br />
SK-69594.<br />
CASNUB 22W(M)<br />
Wheel sets are with wide jaw adapter, cartridge roller bearing and<br />
adapter retainer bolt (WA/WL-4902/WD-89025-S/1 for wheel sets).
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