Long screws through a louver casing jam the adjustable blades
Fasteners must stay in the mounting flanges, clear of moving parts. Remove long screws, inspect the blade tracks, and replace with the correct fastener length/location.
Do not drive long screws blindly through louver casing walls where blade linkages may run.
Check
Find where the screw tips entered the casing.
Manually test blade movement after removing suspect screws.
Check for bent linkage, gouged tracks, or damaged blades.
Use correct fastener length at approved mounting points.
Cycle actuator/manual linkage before cover.
Steps
Find where the screw tips entered the casing.
Manually test blade movement after removing suspect screws.
Check for bent linkage, gouged tracks, or damaged blades.
Use correct fastener length at approved mounting points.
Cycle actuator/manual linkage before cover.
Say this to your foreman
The adjustable louver at [location] is jammed and long screws appear to hit the blade track. Do you want me to remove them, inspect the linkage, and refasten only at the approved flange?