. OPERATION DETAILED CONTROLS AND GAUGES OPERATION DETAILED CONTROLS AND GAUGES operation in Step 5 to engage the lock. 3 - 47 5. When the botto m of th e window reach es the top of the bottom window, push t he top of the w indow to th e front to push it against le ft and right lo ck catch es (G) and engage the lock. 6. Check th at leve r (B) is securely at the LOCK positi The lo ck is e ngage d if the ar row on lock case (F ) matches the po If the the ar sition o arrow o row on f the a n lock lever ( rrow on l case (F) B), the lo ever (B does n ck is n ). Check vis ot match the ot engaged.