| SL. No. | Name | Description | Course | Youtube Link | G Drive | Category | |
|---|---|---|---|---|---|---|---|
| 101 | Multi layer wheel set stacking arrangement |
Multi layer wheel set stacking arrangement has been developed and provided in PP Yard/BIA. This streamlines wheel sets movement, enhance working space and easies out bogie section activities.
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| 102 | Multi Dimensional spring cleaning device at PP Yard/BIA |
In regular practice coil springs used in Bogie are being cleaned manually. During manual cleaning it is observed that dust particles are spread in the nearby area, which is not desirable. In addition to the above, carrying of spring from the dismntling area to the cleaning bench is also a laborious job. To get rid of the above a “Multi dimensional spring cleaning device” has been made with the available resources. A rejected unserviceable conveyor system has been used by providing motorized reduction gear box with chain sprocket system. It’s two sides are having protecting wings for safety purpose and four types of brushing arrangements provided for cleaning of springs in different ways. No new items used. Only scrap & unserviceable relevant items used. Hence total direct cost is Nil. Indirect cost for scrap value is Rs.10,000/- approximately & cost of man power is Rs.8000/- approximately. |
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| 103 | Basics of CNC Programming (Trainer Model) |
CNC turning lathe (trainer model) is used to provide basic training of programming on various turning operations through simulation. |
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| 104 | Heavy Corrosion attention - Mysore Workshop |
The following practices are being done during the corrosion attention of passenger coaches
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| 105 | Cleaning of breather plug to reduce wheel shelling in LHB Coaches |
Wheel shelling on wheel tread is a common problem in LHB coaches. This primarily occurs due to partial brake binding. When the brakes are not fully released, some amount of skidding takes place which gives flat spots on wheel tread. If this phenomenon occurs repeatedly, it eventually leads to metal chip off, also known as wheel shelling. As a result, the coach is then marked sick on this account if the length & depth of shelling spot becomes 40 mm or more and 1.5 mm or more respectively. Subsequently, the wheel needs to be changed by detaching the coach from rake. This involves a lot of efforts and a significant cost. During brake application and release process, air exhaust and intake takes place through a small part present in the brake cylinder integrated unit, known as ‘Breather plug’ (fig.1).During course of time, dust and other foreign particles deposit in the vent hole (fig.2). This obstructs the passage of air due to which brake application and releasing do not take place in a smooth manner, which eventually leads to intermittent skidding, thereby resulting in wheel shelling. The breather plug was then cleaned properly and installed back (fig.3). This practice was started from 01.02.2018. The condition of wheel before cleaning of breather plug (fig.4, wheel shelling marks can be seen) and after cleaning of breather plug (fig.5, wheel shelling marks have considerably reduced) is shown below. The cleaning of breather plug helps in smooth brake application and releasing, thereby preventing wheel skidding. |
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