BOGIES AND SUSPENSION - South Central Railway

CHAPTER 6 – BOGIES AND SUSPENSION
601 D. REPAIR AND MAINTENANCE DURING ROH & POH
WAGON MAINTENANCE MANUAL
Page 12 of 121
In addition to all the work prescribed at para 601 C above, the following work
is also to be done in ROH/POH :-
a. The bogie should be dismantled. Dismantling and assembly procedure is given
in para e. The bogie clearances and tolerances should be checked and rectified,
if found necessary.
b. Position the job for down hand welding and carry out the repairs. Ensure that
suitable manipulators are used.
c. After the repairs the repaired surface should be checked with relevant gauge
for correctness. Excess material, if any, should be removed by grinding or
machining.
d. All the wearing surfaces of bogie shall be brought to “As New” condition.
e. Assembly and disassembly of the bogie
I. DISASSEMBLY
Disconnect bogie brake rigging attachment to underframe and brake
gear and raise car body. Run out the bogie.
Inset assembly pin (12mm dia x 250 mm long) to retain friction shoes.
Raise bolster to connect top member of side frame.
Remove outer, inner and snubber springs.
Remove assembly pins and lower wedge blocks to take them out.
Lower bolster to rest on the spring plank.
Slide the bolster to one side to take it out.
Take out the key from side frame to release the wheel sets.
Take out the side frames and spring plank assembly.
Remove the adapter retainer bolt to release the adapter.
II. ASSEMBLY
Re-assemble the bogie by re-raising the procedure as above.
Important: Inspect all the load and snubber springs for proper seating
after wagon body is on bogies.