Size up, Staging, and Spotting Flashcards
Size up…
Where is the call
Type of structure
Time of day
Aerial will be used for rescue, water tower, vent ops, exposure protection, equipment on apparatus
4 Steps to putting aerial into operation…
Scan
Plan
Stablize
Raise
Scan for factors that influence ladder placement…
Building and fire conditions
Powerlines
Wind and obstacles
Supporting ground conditions
Other apparatus onscene
Condition hazards - over, under and around
Building condition
Size
Height
Occupancy
Construction
Distance from street
Collapse Zone…
The collapse zone is calculated at 15 ft per floor or 1.5x the building height
Powerlines…
Stay 7m away from all power lines
Have Enmax shut down grid if necessary
Lines can be obscured by trees or smoke
Wind…
In excessive winds operate perpendicular to the rungs above 50 km/h
If possible, stage do the wind is behind the rescuer. This way the wind loads the ladder in the designed direction.
Planning for ladder position…
Plan from tip to turntable
Minimize ladder stress and overload by spotting
Judge the distance to the objective and place turntable accordingly
LADDER OVERLOADING
REDUCE/CORRECT LADDER OVERLOADING BY…
REDUCE THE LOAD AT THE TIP
RETRACT THE LADDER
RAISE THE ANGLE OF THE LADDER
CONSTANTLY MONITOR THE OVERLOAD GAUGE
Why to stabilize the apparatus…
Widen the base and prevent tip over
Compensate for grades
Take the bulge out of the tires
Avoid compression of the suspension
Chocking the wheels…
Level ground - both sides
On a grade - downhill side
Stabilization Guidelines - Standard
STANDARD Outriggers on Smeal
On grades 0-5 degrees - 100% capacity
On grades 5-7 degrees - reduced by 50% capacity if the turntable is levelled within 3.5 degrees
On grades above 7 degrees - operation is not recommend
Stabilization Guidelines - Deep Penetrating
DEEP PENETRATING Outriggers on Smeal
On grades 0-5 degrees - 100% capacity
On grades 5-7 degrees - 100% capacity if the turntable is levelled within 3.5 degrees
On grades above 7 degrees - reduced by 50% capacity if the turntable is levelled within 3.5 degrees
On grades above 9 degrees operation is not recommended
Deploying Stabilizers and Leveling
Shortjack operations can be used where space is limited or in an emergency where the ladder must be raised quickly to provide rescue or other important fireground ops. Beware the ladder will only rotate over the supported side. Always extend the stabilizers as far as possible.
Short Jack on Smeal aerials
Outriggers can be deployed right out of the bed.
Limit switches will not allow rotation over the short jacked side more then 15 degrees.