Take the front wheel and ease the brake mechanism into the drum.
Line up the wheel centre with the end of the forks. Feed the axle bolt
through the fork end and the wheel until you can locate larger
aluminium spacer inside the forks. Push the axle through the wheel.
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Put the smaller spacer onto the axle then push it fully through the left
fork. Add the washer then tighten the axle bolt using two spanners.
Rotate the wheel to see that it is turning freely and not rubbing. At this
stage the brake should be tested and adjusted if necessary.