Measuring the hole spacing/ measuring hole location using SBKL1 tool
If necessary, check the specified hole spacing between the two fastening holes from hole center to hole center using a sliding calliper. It must be 145-mm
Always check the distance –C– (see Table 1) between the center’s of the holes and the rail head bottom using the rail hole check gauge type SBKL1.
Screw SBKL1 into the rail web holes.
Release the knurled screw, press the movable leg against the rail head underside firmly and then tighten the knurled screw again.
Cautiously take the SBKL1 off the rail and read the measured value.
Compare the read dimension with the dimension required according to Table 1. For rail types not shown in the Table 1 chart consult with Pintsch Tiefenbach to get the appropriate values.
Note: Too many fastening holes weaken the rail /tolerances
If the dimensions obtained with the BVR17 should deviate by more than ± 0.5mm or, when using the LD-3PY, by more than ± 0.5mm from the value stated in the table, then the holes must be drilled another time. If there are too many holes in a stretch of 6 feet, the strength of the rail could be weakened and is not allowed
