If failure of Racers occurs in WAG9 locos, procedure to mount
axle should be inspected in the shop.:
G9 Racer is
induction heated before fitting over the axle journal. ( two racers on each
side ).
Axle box and Racer Bearing in above and below snap.
Due to failure of induction heaters, gas heated racers may get the profile
damaged and this may result in failure. B
The radial
clearance measurement procedure ( different for SKF and FAG racers ) should be followed with the help of NO-GO gauges.
Centre Pivot:
Castings need to be rejected during machining if there are large number
of blow holes.
Blow holes in
Centre Pivot of WAP4 ( Raj ) locos loo like this:
