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 />
CASNUB 22W(M) Bogies<br />
WAGON MAINTENANCE MANUAL<br />
Page 10 of 121<br />
The bogie is fitted with unit type suspended cast steel brake beam. The<br />
brake head is a separate sub assembly which is fixed with brake beam circular<br />
end by means of pin passing through brake beam end and brake shoe adjuster<br />
along with spring loaded brake head. Assembly provides rotational flexibility<br />
to brake head. Details are shown in Drg No. WD-85084-S/1, WD-88012-S/1<br />
& WD-86034-S/1.<br />
n) RECLAMATION OF BRAKE BEAM ON ACCOUNT OF WORN OUT<br />
BRAKE HEADS<br />
Reclamation procedure for different versions of CASNUB bogie brake<br />
beams shall be as follows.<br />
I) CASNUB 22W Bogie<br />
Brake heads are welded with brake beam channel, side rest and outer<br />
stiffener plate as shown in Drawing No. SK 69596. The repair procedure for<br />
worn out brake heads is as follows.<br />
REPLACEMENT<br />
i. Remove worn out brake heads by gas cutting the welds<br />
indicated in drawing SK 69596 with as little damage to other<br />
members as possible. Other part, if damaged should be built up<br />
by welding by using electrode and taking precaution followed<br />
by proper cleaning and finishing operation.<br />
ii. Weld new brake head at correct position with brake beam<br />
channel, outer stiffener plate and side rest by fillet welds of<br />
sizes indicated in Drawing SK 69596.<br />
REPAIR BY WELDING<br />
Depending upon extent of wear on brake head it is optional for<br />
repairing shop/depots to either go for total replacement of worn out<br />
brake heads or to build up worn out portion by welding followed by<br />
proper finishing operations.<br />
II) CASNUB 22 W(M) Bogie<br />
Brake heads are fitted on brake beam with the help of brake<br />
shoe adjuster as shown in drawing no. WD-88012-S/1. Brake heads are<br />
further secured on brake beam-ends by washer and split pin.
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