We have added an integral “dual pin interlock” safety feature to our LL500 to LL700 hoist line (*patent # 11453580).  The spring-loaded interlock pins are positioned mid-hoist to engage at approximately 35 degrees of lift.  An integral interlock eliminates the need for installing a traditional body prop and doubles your benefit as dual prop qualified for municipal specifications. This running change is already integrated as standard into the LL700, LL600, LL500 and LL500 hoists.