Burley FLATBED Owner's Instruction Manual page 5

Make sure wheels are held securely; you should not be able
to rock or shift wheels. Improperly installed wheels can fall
off, causing accident and serious injury.
Only use dished, 20 x 1.75 wheels supplied with Burley
Flatbed. Do not operate with tires in fl at ed above 35 P.S.I.
Failure to comply can cause trailer tip over, resulting in
accident and serious injury to cyclist.
Swing Tongue and Hitch into Place
Tip your trailer frame on its back end. If you are work ing on a rough or dirty
sur face, lay down a cloth or other protective barrier to avoid damage to
your trailer. Swing the tongue 180˚ for ward, so that it snaps into the plastic
tongue re cep ta cle at the front frame. Slip the safety pin through the hole in
the tongue re cep ta cle to lock the tongue in place. Refer to the illustration
be low for correct use of the safe ty pin.
Safety pin must be locked in place before using trailer,
otherwise tongue could shift and cause accident and serious
injury.
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