If you do not have the correct equipment to test a DMF then follow below.
There are 4 stages.
Stage 1 - 2 are visual inspections. bla, bla, bla.
Step 3: With fly still fitted rotate the inner mass by hand anticlockwise and mark the flywheel then rotate it clockwise and measure the travel. Replace if movement is less than 15mm or more than 30mm.
Step 4: Check for bearing play by rocking the inner mass from side to side. replace if movement is more than 2mm.
The above is just general guidelines, however at 71K it will be fooked.
Alex.