Step 3:
Push axle (8) through the Wheel (6),
φ
10 Spring Washer (F),
φ
10 Washer(D) and hole
on the Left Side Panel (20). Screw it onto the weld-nut and clip on the Wheel Cap (7).
Step 4:
Push the M6*12 Bolt (B) through the
φ
6 Spring Washer (E),
φ
6 Washer (G) and fix
Bottom Beam (5) to the two side panels (19 & 20) by screwing it into the riv-nuts on the side
panels.