BOGIES AND SUSPENSION - South Central Railway

CHAPTER 6 – BOGIES AND SUSPENSION
WAGON MAINTENANCE MANUAL
Page 92 of 121
Wooden keep is made of hard wood to IRS K-2. It is rectangular in shape. Its
one surface is square to the bottom and the other surface inclined. The square surface
is kept towards journal end and the inclined surface towards faceplate. In the central
portion a cut has been made to facilitate oiling of the cotton waste. The oil is required
to inject as near the journal as possible.
For this purpose, 13 mm semi-circular slot has been provided on the inclined
surface upto 2/3rd height from the bottom. From the top a V cut or a rectangular cut
is made on the inclined surface extending along its thickness upto the back surface.
The circular slot joins with this slot. The V slot is also made inclined downwards the
inner side. The oil can spout if inserted through the oil hole provided on the faceplate
and it extends itself upto the Vee slot and oil is poured. The oil thus finds its way to
the cotton waste packing by gravity through Vee and circular cut.
Wooden keep packing should be free from any cracks and other defects and
should be of correct dimensions. Its surface finish should be smooth. Before use new
wooden keep should be soaked in oil for 48 hours. It should be prevented from
coming into contact with water.
605O. PERIODICITY OF REPACKING AND OILING
The axle boxes of Broad Gauge and Metre Gauge stock have either
permanently secured face plates or have face plate secured with studs/bolts. Face
plates are secured permanently with axle boxes by means of 2 snap headed rivets, of
dia. 12 mm or more which ensures reasonable tight joint between them. On MG stock
face plates are also permanently secured by means of a bolt and nut with a lock
washer which should bite into the threads and can only be removed by hammer and
chisel. On many MG non-standard wagons, such as WE, face plates are permanently
secured by bent over rivets or bolts riveted flush over the nut because due to design, it
is not possible to use snap headed rivets on them.
For BG container flats of C. Rly., the B.G. vegetable oil tank wagons of N.
Rly., B.G. wagons, special permission has been given to move them with face plates
secured with bolts. The studs/bolts used for securing faceplates should have
prescribed security fastenings.
The periodicity and occasion of re-packing will as under :-
(i) Permanently secured face plates -
8 months (+) 7 days for loaded (Maximum)
(-) 7 days for empty (Optional)
(ii) Face plates secured by studs and bolts -
BG - 2 months.
MG -3 months
(iii) In addition to above, all axle boxes should be repacked whenever a
wagon is lifted or its wheels are drawn out.
(iv) During Hot Box attention
(v) Re-packing should also be done in Workshops at the time of POH.
(vi) Derailed wagon.