Manual Locking System for Ladder Access System (LAS) per set
The Manual Locking System provides a positive means of retaining the ladders. The lock must be deactivated prior to operating electrical control. This is done by pulling outward on the strap or pushing back on the handle.
New style 3097-280-101 base casting has been provided with all LAS systems since March 23, 1998. If your system was delivered prior to the above date, you will require new base castings in addition to the locking system.