Do not stand between trailer drawbar and truck coupler during hook-up procedures to
prevent being pinned between truck and trailer. Serious injury or death could result to
Wheels on trailer must be chocked to prevent trailer from moving during hook-up
procedures. Serious injury or death could result to personnel.
Chock wheels of trailer.
Unhook two safety chains (38) from clevises (41) and attach to trailer.
Hook safety chains (38) to chain links (42).