Quartering
Taking the cranks as pairs, screw in a 2mm x 10mm countersink screw to each for the front pair and a 2mm x 16mm countersink screw to each for the rear pair. Enlarge slightly the holes in the rods to enable the 2mm bearings to fit freely. Fit the rods to the front cranks and fit to the axles using a 0.9mm allen key. Loosely set the front cranks 90 degrees to each other. Do not over tighten.
Similar to the above, fit the rear cranks 90 degrees to each other. Don't fit the rods to the rear just yet.
Test for free movement and if necessary adjust the cranks until running freely. Then fit the connecting rods and test again.
The footplate can now be fitted. But before doing so, countsink the two front holes before fitting to the chassis using four 2mm x 6mm bolts.
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