Introduction. Module 7 (Training & Equipment Manual 304)

Transcription

1 Introduction Module 7 (Training & Equipment Manual 304)

2 Critical fireground operations rely on proper placement of ladders Photos courtesy of Anthony Delucia, Thomas Lenart,Chris Saracenco and Robert Yates 2

3 Types of Ladders Types of Ladders

4 Two Types of Fire Service Ladders Types of Ladders Photo courtesy of M. Kuhar Photo courtesy of Kevin Soucie 4

5 Apparatus-Mounted Ladders Types of Ladders Aerial Ladder Permanently mounted telescoping ladder Constructed of steel or aluminum Uses a hydraulic system with steel cables and pulleys Typically May have pre-piped waterway 5

6 Apparatus-Mounted Ladders Types of Ladders Platform Photo courtesy of Frank Ricci Photo courtesy of Thomas Lenart Straight Stick 6

7 Apparatus-Mounted Ladders Types of Ladders Quint Ladder Performs both ladder and engine functions Equipped with: o Pump, tank and hose o Aerial with waterway o Compliment of ground ladders Photo courtesy of Matt Fernandez 7

8 Ground Ladders Types of Ladders Straight Ladder Single section Fixed length: 12 to 20 long FFD uses aluminum roof ladders as straight ladders Engines carry one 14 Trucks carry a compliment of 14, 16, and/or 20 roof ladders 8

9 Ground Ladders Types of Ladders Roof Ladder Straight ladder: long Spring loaded hooks mounted to tip Hooks allow ladder to bite into roof ridge Provides stable work platform 9

10 Ground Ladders Types of Ladders Extension Ladder Adjustable ladder with two or more sections Typically lengths More flexibility to reach different heights Larger ladders equipped with tormentor poles (No longer used) FFD utilizes 10, 14, 24, and 35 extension ladders 10

11 Ground Ladders Types of Ladders Folding (Attic) Ladder Narrow, collapsible ladder Ideal for small and narrow spaces Photo courtesy of Robert Yates 11

12 Ground Ladders Types of Ladders Fresno Ladder Narrow extension ladder No pulleys or halyards; raised manually by pushing up fly Provides access to narrow areas FFD utilizes 10 and 14 Fresno ladders 12

13 Structural Components of Ladders Structural Components of Ladders

14 Construction Materials Structural Components of Ladders Fiberglass Wood Aluminum (FFD) 14

15 Components of a Ladder Structural Components of Ladders Beam main structural component Supports the rungs at 14 intervals Trussed Beam Solid Beam (FFD) I-Beam Trussed Solid I-Beam 15

16 Components of a Ladder Structural Components of Ladders Bed section Bottom section In touch with ground or apparatus Widest section, others retract into it 16

17 Components of a Ladder Structural Components of Ladders Fly section Extends from bed section Multiple fly sections move at same time Narrower than base 17

18 Components of a Ladder Structural Components of Ladders Butt (spur) Base of ladder or bed section Designed to prevent ladder from slipping 18

19 Components of a Ladder Structural Components of Ladders Channel guides A channel or slot in the ladder beam Supports and interlocks with fly section Guides the fly section as it is raised 19

20 Components of a Ladder Structural Components of Ladders Dogs Mounted on end of beams of fly section Spring-loaded Engages rungs on bed section as it is raised 20

21 Components of a Ladder Structural Components of Ladders Heat sensor labels Small orange sticker Attached in various locations Turns black when heated over 300º F Exposure No Exposure 21

22 Components of a Ladder Structural Components of Ladders Halyard Manilla or nylon rope Used to extend or retract fly section 22

23 Components of a Ladder Structural Components of Ladders Pulley for halyard Reduces friction on the rope Allows for easier raising of the fly section 23

24 Components of a Ladder Structural Components of Ladders Rungs Horizontal cross members tie beams together Circular in design with rung spacing of 14 24

25 Components of a Ladder Structural Components of Ladders Tip Top of ladder or fly section Should rest squarely against the building 25

26 Easy Identification of Length Marking Ladders Length identification Manufacturers label both beams near base Allows for quick identification Some departments color code ladder bases 26

27 Components of a Ladder Review 27

28 Ladder Maintenance, Inspection & Cleaning Ladder Maintenance, Inspection, Testing, and Cleaning

29 Ladder Maintenance Maintenance, Inspection & Cleaning Exposed to harsh conditions Must be cleaned, maintained and inspected weekly per T&E Manual Photo courtesy of Frank Ricci 29

30 Inspection Procedure Maintenance, Inspection & Cleaning Ensure all components are in good order Halyard Feet Dogs Rungs Beams Ladder locks Tip Channel guides Pulleys Ladder hooks Heat sensors 30

31 Inspection Procedure Maintenance, Inspection & Cleaning Check all components for Gouges Chips Dents Sharp Edges 31

32 Testing Requirements Maintenance, Inspection & Cleaning Service & Load Testing of Portable Ladders Annually on portable ladders or Exposure to possible damage Dropped Overloaded Exposure to high heat Structural damage Repaired Unsure of serviceability 32

33 Testing Requirements Maintenance, Inspection & Cleaning All Department ground ladders are tested annually by a certified vendor during the months of September and October. 33

34 Testing Procedures Maintenance, Inspection & Cleaning Horizontal load test Weight is placed on horizontally supported ladder Amount of deflection is measured Photos courtesy of Neil Perotti Additional load tests Roof hook test Extension ladder hardware test 34

35 Ladder Cleaning General Maintenance, Inspection & Cleaning Ladders must be cleaned regularly Use approved degreaser or solvent for removal of tar or grease Use soft bristle brush and rinse with clean water Replace heat sensor sticker if it is falling of or expired 35

36 Ladder Cleaning General Maintenance, Inspection & Cleaning Post cleaning Lubricate Ladder locks or dogs Side rails Pulleys Roof hook assembly Inspect Halyard For frays, damage, or kinks 36

37 Ladder Cleaning Fiberglass Maintenance, Inspection & Cleaning Cleaning procedures Wash in mild soap and water solution If small nicks or scratches are found Lightly sand them Apply small coat of clear epoxy glue When dry sand smooth Apply wax to restore fiberglass surface 37

38 Operating Safely with Ladders Operating Safely with Ladders

39 Safety Guidelines Operating Safely with Ladders Use ladders safely Work in teams to prevent injury Any ground ladder greater than 16 must be handled by 2 Explorers Maintain a 10 distance from power lines Look for trees, overhangs, canopies, elevated decks, or platforms Full PPE Photo courtesy of Jim Duffy 39

40 Safety Guidelines Operating Safely with Ladders Always Lift ladder from ground using leg muscles o Avoids injury to the back 40

41 Safety Guidelines Operating Safely with Ladders Always Ascend and descend facing the rungs Photo courtesy of Patrick Egan 41

42 Working from the Ladder Operating Safely with Ladders Safety first Do not overreach when working on a ladder Always use an arm or leg lock Ensure 4 points of contact for the ladder Keep 3 points of contact on the ladder Always have someone footing the ladder, unless it is tied off Photo courtesy of Patrick Egan 42

43 Selecting the Proper Ladder Selecting the Proper Ladder

44 Selection Considerations Selecting the Proper Ladder Quickly determine Where does the ladder have to be placed? Photo courtesy of Michael Schwartzberg What length is needed? What purpose is it being used for? Photo courtesy of Thomas Lenart Photo courtesy of John Rainey 44

45 Know your Complement of Ladders Selecting the Proper Ladder Firefighters must Be familiar with the different types and lengths of ladders available to them You may only have a split second to decide Choosing the wrong one may have severe consequences 45

46 FFD Typical Complement of Ladders Selecting the Proper Ladder Engines 24 Extension Ladder 14 Roof Ladder 10 Fresno Ladder Trucks 35 Extension Ladder 24 Extension Ladder (2) 16 Roof Ladders 14 Fresno Ladder 10 Folding Attic Ladder 46

47 Common Ladder Lengths Selecting the Proper Ladder Learn what you carry - Not all ladders are the same Ladder Type Bedded Length 24 foot extension 14 feet 28 foot extension 16 feet 35 foot - 2 section 20 feet 35 foot - 3 section 15 feet 47

48 Consider Type of Building Selecting the Proper Ladder Residential structures: 8-10 per floor Commercial structures: per floor 48

49 Straight vs. Extension Ladder Selecting the Proper Ladder Choose an extension ladder When possible use an extension ladder over a straight ladder Extension ladders offer more options A bedded 24 extension ladder has the same length as a 14 roof ladder Photo courtesy of PJ Norwood 49

50 Ladder Length vs. Working Length Selecting the Proper Ladder Photo courtesy of PJ Norwood 50

51 Ladder Placement Operating Safely with Ladders Caution when placing ladders Placing ladder in front of door/window: Blocks means of egress and ingress Could be knocked off of balance by a charged hose line Photo courtesy of Frank Ricci 51

52 Ladder Placement, Climbing & Operational Guidelines Ladder Placement, Climbing, and Operational Guidelines

53 Setting the Proper Climbing Angle Placement, Climbing, and Operational Guidelines Ladder climbing angle Must be set at a 65º to 75º angle Anything greater than 75º is too steep and can result in injury Photo courtesy of Rob Ladd 53

54 Setting the Proper Climbing Angle Placement, Climbing, and Operational Guidelines Check the climbing angle Stand in front of ladder Reach outward at chest level, arms extended Rung should be in a comfortable location for climbing Double-check using label on beam 54

55 Ladder Orientation Placement, Climbing, and Operational Guidelines Fly position Most ladders require fly section to be out Follow manufacturers guidelines 55

56 Raising the Ladder Position Assignments Placement, Climbing, and Operational Guidelines Butt position Hand-over-hand motion on halyard Listen for clicks of the dogs Never place hands on the rungs 56

57 Raising the Ladder Position Assignments Placement, Climbing, and Operational Guidelines Front position Supports ladder with right or left foot Notifies butt firefighter when ladder is properly extended 57

58 Raising the Ladder Placement, Climbing, and Operational Guidelines Lower ladder When proper height is achieved Lower ladder slowly into objective 58

59 Butting or Footing the Ladder Placement, Climbing, and Operational Guidelines Front Rear Stabilizes ladder and prevents movement Anchor Must be done before climbing 59

60 Butting or Footing the Ladder Placement, Climbing, and Operational Guidelines Apply pressure with one boot against the base If a firefighter is working off one side of ladder, the boot must be applied to opposite side Front 60

61 Butting or Footing the Ladder Placement, Climbing, and Operational Guidelines Rear Hold beams from rear of ladder and lean back Disadvantages o o o Falling tools may strike firefighter Cannot see building Cannot assist climbing firefighter 61

62 Butting or Footing the Ladder Placement, Climbing, and Operational Guidelines Secure ladder to substantial object such as a car or dumpster Anchor tool into ground Pry bars can be used to secure to a window Anchor 62

63 Securing the Ladder Tip Placement, Climbing, and Operational Guidelines Securing tip of the ladder Used when ladder is to remain stationary Prevents ladder from being moved in an emergency 63

64 Climbing a Ladder Placement, Climbing, and Operational Guidelines Climbing Technique Climb with hands on rungs If carrying a tool, slide hand along beam Stand up straight Keep balls of your feet on the rungs 64

65 Climbing a Ladder Placement, Climbing, and Operational Guidelines Spacing Personnel on the Ladder Space firefighters evenly (per FFD) spacing on an aerial ladder Limit one firefighter per section Follow guidelines and recommendations from manufacturer 65

66 Climbing an Aerial Ladder Placement, Climbing, and Operational Guidelines Climbing Always maintain contact with rail or rung Never utilize a leg lock Use a safety belt 66

67 Leg-Lock Placement, Climbing, and Operational Guidelines Leg-Lock Originally used with ¾ length boots Today s turnout pants with pockets full of tools make this difficult 67

68 Portable Ladder Placement: Access & Egress Portable Ladder Placement: Access & Egress

69 Portable Ladder Placement Portable Ladder Placement: Access & Egress Placement is critical Butt and tip must be secure Both beams in contact with a solid surface If integrity is doubted, move ladder 69

70 Portable Ladder for Roof Operations Portable Ladder Placement: Access & Egress Five rungs above roof line Provides visibility for quick exit Provides stability for stepping on and off structure Photo courtesy of M. Kuhar 70

71 Portable Ladder for Window Access Portable Ladder Placement: Access & Egress Place portable ladders with tip slightly below or even with window sill Tips placed in window opening decreases the size of window and limits operations Photo courtesy of Joseph Ciscone 71

72 Portable Ladder for Working at Window Portable Ladder Placement: Access & Egress Place portable ladders even with top of the window on the windward side 72