Pandrol Ind Inc Calorite Training Manual LP-AP CJ 2019 En-test (2)

Trainee Workbook
Module I
Step 5: Rail-end Alígnrnent (cont'd)
Peak: Concrete ties
. Make sure the tie pads have been removed, and place
a welder's straight edge centered on the running
surface of the rail, across the gap
. For concrete ties, the peak must be 1.6 mm (1/16 in)
at both ends of the straight edge
. Taking into consideration what you saw when you
eyeballed the rail-ends... and what the straight edge
indicates... position one wedge under the rail, on the
side that appears to be furthest out-of-line
. Do this on the first tie on both sides of the weld
location
o Adjust the wedges until you have the correct peak at
both ends of the straight edge, or...
. adjust the peak using a 'rail raiser', if available
. If a rail-end is too high (without wedges), lower it by
jacking up the high rail with a track jack placed a
minimum of 8 to 12 ties back from the rail-end
Caution!
o Be careful not to 'hump' the track. Remove the fasteners
if necessary.
o The track jacks must remain in place until the weld has
cooled down below 370"C (700'F).
1.6 6i 1.6 mm (1/16 in)
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figure l5
34