Categories of Aerial Ladders Aerial Ladders Aerial Platforms Telescoping Aerial Platform Tele-Squirt...

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Transcript of Categories of Aerial Ladders Aerial Ladders Aerial Platforms Telescoping Aerial Platform Tele-Squirt...

Categories of Aerial LaddersAerial LaddersAerial PlatformsTelescoping Aerial Platform Tele-Squirt Articulating Aerial Platform Quint

Uses of AerialRescue

Master Streams

Ventilation

Access to Upper Storeys

Lighting Platform

Observation Platform

Ladder ConstructionTruss Beam

Triangular Shape Trusses

Aluminum Alloy or Steel

Welded or Riveted

Tension and Compression Distributed over beam

Hoisting CylindersSeamless Steel

Sealed

Hydraulic Oil

Safety Valve

Emergency Operation

Extension Cylinders and Cables

Cylinder at Base of Ladder Aircraft Cables Pulleys

Turntable

Continuous Rotation - 3600

Metal Plate

Operating Pedestal

Manual Control

Emergency Operation

Control Pedestal

Mounted at Side of Ladder Levers Elevation Extension Rotation

Control Pedestal

Joy Stick Gauges Oil Pressure Engine Starter Switch Light Switch Intercom

CommunicationsGround to tipHands free operation

Jacks Out-Riggers and Stabilizers

Stabilizing Jack Plates or Stabilizer Pad

Other FeaturesInclinometer Load Indicator Emergency Outside Controls Platform Controls Turret Nozzle Heat Stress Indicator

What are the drivers Responsibilities?

What are the firefighters responsibilities?

Rescue PrioritiesMost Severely Threatened Victims Largest Groups of Victims Remainder of People in Fire Area Victims in Exposed Areas Position Aerial at Corner of Bldg., When

Possible

Window RescuePerpendicular to Bldg., If Possible

Don't Block Opening

Platform

Top of Basket Even with Sill

Approach From Side or Top

Victim Removal on Ladder

Capable Adults

F/F to Act as Guide for Descent

Injured Adults

Over the Shoulder Carry - One F/F to Assist

Infant One Arm Carry

Victim Removal by Stokes Down Ladder

Top Guide Rope

Rope Lowering

Guy Lines

Rope Through Rungs Lower Ladder

Stokes Mount on Platform

Aerial used for Exposure ProtectionDirect Application of Stream Onto Exposure

Stream into Thermal Column

Eliminate Brands

Wide Sweeping Motion of Stream

Don't Break Windows

Fire AttackOffensive Straight Stream Into Structure Defensive External Never when F/F or Victims Are In Building Stream Elevation Maximum of 80% of Ladder Length

Fog Stream AdvantagesGreater Heat Absorption

Steam

Wider Area of Coverage

Close-up Offensive Attack

Exposure Protection

Siphon Ventilation

Disadvantages

Short Reach and Penetration

Affected by Wind

Fire

Atmosphere

Detachable Water Pipe Set Pattern on Ground

Clamp Nozzle to Top Two Rungs

Secure with Safety Rope

Attach Guide Ropes if Applicable

Detachable Water Pipe Attach Supply Line

77m (3")

Hose Straps

Attach Siamese and Gate

Master StreamClimb ladder as per safe ladder practices

Foot Pads Down and Locked

Fasten Safety Belt

Master StreamCreate the Fire Stream as Per Officer’s Orders

− Type of Stream

− Direction

− Purpose

• Avoid Electrical Wires with Stream

Factors affecting aerial performance HeatDiscolorationDeformed WeldsImproper operation of any partPaint BlisterHeat LabelsPressure relief valve on hydraulicsWarm to the touch

Mechanical Failure Signs

Leaking fuelLeaking hydraulic fluidCooling system leakMotor oil leakOverheating of componentsVibrations and noisesStress cracks

Cold TemperaturesSlower operation due to thick hydraulic fluidSteel affected ( minimized shock load)Ice forming on ladder ( increased weight)Frozen hydraulic linesWon’t retractFreezing runoff ( truck may slide downhillDrain water pipe as soon as completed with it