OSHA Quick Card

Semi Tractor Tip Over

Operators of semi tractors should be aware of conditions that may cause
them to tip over.    

Tip over may occur When:

You are backing in the jack knifed position.  (This will reduce the
stability of the unit)

The 5th wheel is all the way up.  (The center of gravity is raised and
stability is reduced)

You make a sudden acceleration or jerky motion while backing.

Driving too fast while cornering.

Note: Reduce the chances of injury or death by wearing your seat belt.

Practices to help avoid Tip Over:

Use the S-curve backing procedure and avoid using the jack knife method
if possible.

Keep your 5th wheel as low as possible without hitting or grounding the
landing legs; thereby, lowering the center of gravity. (This may require
cranking up the landing gear.)

Avoid sudden acceleration, jerky motions, or sudden stopping while
backing.  Always back in slowly and smoothly.

Avoid blind side backing whenever possible.  If you must use this
procedure, check that the area is clear of hazards and pedestrians.

Obey all speed and traffic regulations (1917.44 (d)).

Inspect all vehicles prior to use and report any defects  (1917.43
(c)(5)).

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