How to prepare Specimen

Using an s2.5 Allen key, attach ball holder to cantilever with 8 X M3 Allen bolts

Ball holder

Ball holder cap

Weigh the following together as one,

Ball holder cap

Nut (to keep in place the ball specimen in the ball holder cap)

M12 Bolt (to hold the ball specimen in fixed position)

Tare this weight value

Wear gloves

Unscrew the M12 bolt from the ball holder cap

Place ball specimen in ball holder cap as shown

Place a nut above the ball specimen

Tighten this arrangement with a size M12 bolt

Take note not to be in contact with exposed surface of ball specimen at all times

With the addition of the ball specimen, weigh this arrangement and take down weight of ball specimen before experiment

Using LAS EZ,

Check for surface defects

If surface hasn't been worn, take photo of pre-cleaned surface and save it as 'Ball, before expt, before clean'

Tear open a new stick of Collection swab and dab it in acetone

Clean the exposed surface of the ball specimen with the wet swab

Next, tear open a new Collection swab and dry the exposed surface of the ball specimen with a new dry Collection swab

Again, using LAS EZ,

Take photo of cleaned surface and save it as 'Ball, before expt, after clean'

Unscrew the M12 bolt slowly, keeping the exposed surface in the same position as before

Vertically screw the ball holder cap back to the ball holder

Be conscious of exposing the exact same ball surface