Avoid injury! Brush bristles can be sharp. Wear heavy
gloves when handling the brush head.
Avoid damage! Help avoid damage to the broom drive
mechanism. Tighten adjustment bolt by hand only. Using a wrench can
result in overtightening and subsequent damage to the drive chain
and other assembly parts.
While rotating brush manually, turn adjustment bolt (B) clockwise
by hand until it will not tighten any more.