north idaho emergency services academy. objectives types of fire service ladderstypes of fire...
TRANSCRIPT
ObjectivesObjectives
• Types of fire service laddersTypes of fire service ladders
• Ladder termsLadder terms
• Ladder raising proceduresLadder raising procedures
• Roof ladder operationsRoof ladder operations
SINGLE LADDERS
• Are nonadjustable
• Have only one section
• Are sometimes called wall ladders
• Are used for quick access to windows and roofs of one- and two-story buildings
• May be truss construction
TS 9–2
ROOF LADDERS
• Are equipped at tip with folding hooks for anchoring ladder to roof ridge
• Are used to distribute firefighter’s weight during roof work and to prevent slipping
• May also be used as single wall ladders
TS 9–3
EXTENSION LADDERS
• Are adjustable in length
• Indicated length on ladder equals the length of side rails when fully extended
• Are used to provide access to windows and roofs within their length limits
TS 9–5
GUIDELINES FOR LIFTING & LOWERING LADDERS
• Have adequate personnel for the task.
• Lift properly:– Bend the knees.– Keep your back as straight as possible.– Lift with your legs, not with your back or arms.
• When two or more firefighters are lifting a ladder, lift on command of firefighter at rear who can see the whole operation.
TS 9–16a
GUIDELINES FOR LIFTING & LOWERING LADDERS
• Reverse the lifting procedure when it is necessary to place a ladder on the ground before raising it.– Lower the ladder with the leg muscles.
– Keep your body and feet parallel to the ladder to avoid toe injury.
TS 9–16b
CORRECT LADDER PLACEMENT
• Ventilation or climbing into or out of narrow windows — To windward side of window with tip about even with window top
• Window rescue — Tip even with or slightly below sill, or inside window opening with two or three rungs above sill if window is wide enough
• Directing streams or supporting a smoke fan — Directly in front of window with tip on wall above window
TS 9–20
CLIMBING ANGLE
• Approximately 75 degrees
• Climber can stand upright and reach the rungs at arm’s length
• Distance of butt from wall equals used length of ladder divided by four
• Inclination marking on outside beam perfectly horizontal and vertical
TS 9–21
GENERAL RAISING PROCEDURES
• Survey for electrical hazards.
• Transition from carry to raise.
• Position extension ladder fly section out.
• Tie the halyard.– Clove hitch around two convenient rungs– Overhand safety knot
• Secure and heel.
TS 9–22
GENERAL RAISING PROCEDURES
• Survey for electrical hazards.
• Transition from carry to raise.
• Position extension ladder fly section out.
• Tie the halyard.– Clove hitch around two convenient rungs– Overhand safety knot
• Secure and heel.
TS 9–22
GENERAL RAISING PROCEDURES
• Survey for electrical hazards.
• Transition from carry to raise.
• Position extension ladder fly section out.
• Tie the halyard.– Clove hitch around two convenient rungs– Overhand safety knot
• Secure and heel.
TS 9–22
LADDER MAINTENANCE
• Keep ground ladders free of moisture.
• Do not store or rest ladders in a position where they are subjected to exhaust or engine heat.
• Do not store ladders in any area where they are exposed to the elements.
• Do not paint ladders except for the top and bottom 12 inches (300 mm) of the beams for purposes of identification or visibility.
TS 9–9
CLEANING LADDERS
• Clean ladders after every use and before inspecting.
• Use a soft-bristle brush and running water for cleaning.
• Wipe the ladder dry, checking for defects.
TS 9–10
GENERAL LADDER MAINTENANCE,
INSPECTION, AND REPAIR• Two methods of determining whether metal
ladders have been exposed to high temperatures:
– Water boils when sprayed on the ladder
– Heat indicator label has changed color
• Only trained fire service personnel or an approved testing organization should service test fire service ground ladders.
TS 9–11c