Exposed rotating drive-shafts should be guarded.
It is highly recommended by Darley to use safety rings around drive tubes. Especially
near connecting u-joint crosses. Such safety rings would be sufficiently attached to the
chassis frame and sufficiently strong enough to prevent a broken u-joint assembly from
allowing a driveline to slide out from underneath the truck at high speeds while still
rotating, causing severe personnel injury. Said safety rings would be larger than the
drive tube OD and provide enough clearance for dynamic non-rotational movement of
the drivelines through loaded and unloaded conditions, driving operations and where
chassis flex may occur.
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