Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations...
-
Upload
mitchell-cox -
Category
Documents
-
view
217 -
download
0
Transcript of Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations...
![Page 1: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/1.jpg)
Chapter 14
Ladders
![Page 2: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/2.jpg)
Introduction• Ladders provide access to elevated
or below-grade locations• Truss-type beams have replaced
solid wood beams• High-strength aluminum replaced
wood• New design technology continued to
meet ladder needs• Ladders can be used for many
purposes14.2
![Page 3: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/3.jpg)
Ladder Terminology
• Defined as:– “A structure consisting of two long sides
crossed by parallel rungs, used to climb up and down”
– “A means of ascent and descent”
• Many different types of ladders
14.3
![Page 4: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/4.jpg)
Parts of a Ladder
• Many parts to a ladder• Different parts of the ladder might
have multiple names• Common terminology usage will
reduce miscommunication• Glossary of ladder parts on page 417
14.4
![Page 5: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/5.jpg)
14.5
Figure 14-1 (A) Straight ladder terminology. (B) Steel spurs on a ladder of truss construction. (C) Swivel shoes with pads and spikes.
(A)
(B)
(C)
![Page 6: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/6.jpg)
Ladder Companies
• Apparatus that carry ladders, devices, tools, and personnel to upper levels
• Tower ladders and boom ladders are included in this category
• Ladder companies are also responsible for tasks associated with entry
14.6
![Page 7: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/7.jpg)
Grounded (or Portable) Ladders
• Complement of ground ladders, sometimes called portable ladders
• Common types:– Straight– Extension– Various specialized ladders
14.7
![Page 8: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/8.jpg)
Straight Ladder
• Also referred to as wall ladder• Fixed length ladder• Found in lengths between 12 and 20
feet• Generally light• Departments without ladder
companies carry ladders on pumping engines
14.8
![Page 9: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/9.jpg)
14.9
Figure 14-2 Straight wall ladders.
![Page 10: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/10.jpg)
Extension Ladder
• Consists of two or more ladders• Bed ladder acts as a nest• Fly ladder is movable and slides in
channels• Halyard – rope used to extend
ladder• Each section locked into place
14.10
![Page 11: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/11.jpg)
14.11
Figure 14-4 Extension ladder terminology.
![Page 12: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/12.jpg)
Roof or Hook Ladder
• A straight wall ladder with set of retractable hooks at the tip end
• Used on a sloped roof• Can be used as a standard straight
wall ladder• Not designed to be used as a
hanging ladder
14.12
![Page 13: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/13.jpg)
14.13
Figure 14-6 A hook ladder, with retracted hooks, being used as a straight ladder.
![Page 14: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/14.jpg)
Folding Ladder
• Known by many names• Available in lengths from 8 to 16
feet• Provide access to attic spaces• Very portable• Used to remove occupants from
elevator car
14.14
![Page 15: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/15.jpg)
14.15
Figure 14-7 Folding ladder (also called a suitcase or attic ladder). (A) Folded. (B) Opened.
(A) (B)
![Page 16: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/16.jpg)
A-Frame Combination Ladder
• Combination ladder used in various configurations
• Acts as a mini-extension ladder• When fully articulated and
extended, can be a full fixed straight ladder
• Can become a step ladder• Used in tight places
14.16
![Page 17: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/17.jpg)
14.17
Figure 14-8 Combination A-frame ladder. (A) Used as a short extension ladder. (B) Being converted from an extension ladder to an A-frame stepladder.
(A) (B)
![Page 18: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/18.jpg)
Figure 14-8 (cont’d.) Combination A-frame ladder. (C) In the A-frame stepladder mode.
(C)
14.18
![Page 19: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/19.jpg)
Use and Care
• Care must be employed to prevent ladder damage
• NFPA Standard 1932 covers use, maintenance, and service testing of ground ladders
14.19
![Page 20: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/20.jpg)
14.20
Table 14-1 Ground Ladder Tips
![Page 21: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/21.jpg)
Maintenance, Cleaning,and Inspection
• Ladders should be inspected at regular intervals
• Certification label must be affixed• Ladders needing repair are
removed from service• Work beyond general maintenance
performed by trained technicians
14.21
![Page 22: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/22.jpg)
14.22
Table 14-2 General Inspection Guidelines
![Page 23: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/23.jpg)
14.23
Table 14-3 Extension Ladder Inspection Guidelines
![Page 24: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/24.jpg)
Cleaning Ladders
• Dirt and caustic substances act as an abrasive
• Warm soapy detergent and scrub brush will remove most dirt
• Manufacturer’s recommendations should be consulted
14.24
![Page 25: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/25.jpg)
Ladder Uses
• Primarily used for climbing• Used for many purposes:
– Shoring tool– Fence– Hold back loose debris– Chute to channel water
14.25
![Page 26: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/26.jpg)
Access
• Most obvious use• Provides a path otherwise
inaccessible• Can be used to descend into an
opening
14.26
![Page 27: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/27.jpg)
Rescue
• Extracting a victim• Use of ladders that is employed least
often
14.27
![Page 28: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/28.jpg)
Salvage Operations
• Used as a tool to support salvage covers
• Protect hoselines from falling glass
14.28
![Page 29: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/29.jpg)
Stability
• Hook or roof ladder• Provides footing for firefighters on
sloped roofs
14.29
![Page 30: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/30.jpg)
Ventilation
• Can take place in two ways– Firefighter can use ladder to remove
glass with a tool from elevated position
– Ladder itself can be used as the tool
• Safety must be paramount
14.30
![Page 31: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/31.jpg)
Bridging
• Ladder can be an effective bridge between two points
• Supports weight over a weakened floor
• Bedded extension ladder is safest
14.31
![Page 32: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/32.jpg)
Elevated Streams
• Ground ladders are still an option to provide water from an exterior location
• Used when no other approach to fire is available
14.32
![Page 33: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/33.jpg)
Elevated Work Position
• Serve as exterior work platform• Need to remove something or check
for heat during overhauling
14.33
![Page 34: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/34.jpg)
Ladder Selection• Once target is identified, ask these
questions:– What length of ladder is necessary?– What will be done with the ladder?– Will ladder be used at several locations?– Is a straight or extension ladder needed?
• Some additional considerations:– Ground condition– Accessibility of location– Available personnel
14.34
![Page 35: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/35.jpg)
Butt Section
• If ground slopes, raising a ladder might be impossible
• 75 degrees is the proper climbing angle
• Placed directly under the target• Butt should be carried in the
direction of the target
14.35
![Page 36: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/36.jpg)
Fly Section
• Tip of fly dictates how ladder will be used
• Several specific locations where placement of tip will be important:– Windows– Roof level– Fire escapes
14.36
![Page 37: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/37.jpg)
14.37
Figure 14-9 (A) Ladder placed with the tip below the windowsill. (B) Ladder placed with the tip at the top of the windowsill to either side.
(A) (B)
![Page 38: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/38.jpg)
Special Uses
• Can be used as tools or as portable stairs
• Ladder integrity must not be compromised
14.38
![Page 39: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/39.jpg)
Removal of Numerous Victims• Method:
– Raise ladder– Ascend and secure victim onto ladder– Descend escorting victim
• For several victims, use two or more ladders
• One “supply” ladder can service many escape ladders
14.39
![Page 40: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/40.jpg)
14.40
Figure 14-11 Multiple ladder rescue technique.
![Page 41: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/41.jpg)
Chute with a Tarp
• Prevent water damage
• Ladder with tarp used as a makeshift chute to direct water out a window
14.41
Figure 14-12 Ladder with salvage cover, plastic sheet, or tarpaulin used as a chute to divert and discharge water.
![Page 42: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/42.jpg)
Over a Fence
• Two short ladders tied together in an A-frame can be used to climb over fences
• There are times a fence cannot be cut
14.42
Figure 14-13 Ladders can be used to climb over a high fence.
![Page 43: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/43.jpg)
Elevated Hose Streams
• Used in locations that could not be approached conventionally
• Basic safety practices must be employed:– Firefighter and hose must be secured to
ladder– Ladder must be stabilized at base or tip
14.43
![Page 44: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/44.jpg)
14.44
Figure 14-14 A handline can be used off a ground ladder for difficult-to-reach areas. Note the use of a ladder belt.
![Page 45: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/45.jpg)
Portable Pool• Three or four ladders can be tied
together to form a crib and lined with a tarp– Filled with water– Used to capture runoff
14.45
Figure 14-15 Ladders can be turned into an emergency water pool or collection area.
![Page 46: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/46.jpg)
Barrier• Tied off to secure dangerous areas• Provides a positive visual deterrent
as well as a physical mechanism to prevent passing
14.46
Figure 14-16 A ladder can be used as a barrier.
![Page 47: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/47.jpg)
Support• With ropes a ladder
can secure objects as an emergency structural stabilizer
• Should be replaced as soon as possible with tools designed for the situation
14.47
Figure 14-17 Ladder used as a shoring tool. A ladder secured to substantial objects by ropes can assist in stabilizing a structural defect as an emergency measure.
![Page 48: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/48.jpg)
Hoist Point
• Set of ladders tied off at tip and at base into an A-frame
• Pulley and rope are attached to apex
• Ladder weight limits should not be exceeded
14.48
Figure 14-18 A-frame hoist.
![Page 49: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/49.jpg)
Ventilation Fan Supports
• Short ladder spanning an opening can support a ventilation fan or blower
• Innovation must be tempered with safety
14.49
Figure 14-19 A ladder can be used to support a fan in a doorway.
![Page 50: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/50.jpg)
Safety
• Equated with common sense• Use gloves• Use correct ladder• Overhead wires must be considered
“live”• When moving on a ladder,
firefighter should keep three limbs in contact
14.50
![Page 51: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/51.jpg)
Overhead Obstructions
• Carry injury potential:– Tree limbs, structural overhangs– Television and telephone wires– Overhead electrical lines
14.51
Figure 14-20 A ladder can make an electrical connection to ground.
![Page 52: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/52.jpg)
Climbing Path
• Imaginary passageway a firefighter climbs through while ascending ladder
• Obstructed climbing paths:– Firefighter is required to alter normal
climbing angle– Squeeze through a tight space
• Breathing apparatus must be considered when estimating space
14.52
![Page 53: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/53.jpg)
14.53
Figure 14-21 “Climbing path” pass-through area.
![Page 54: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/54.jpg)
Ground Considerations• Ladder must be stable, ground must be
level• Cannot create a dangerous lateral lean
14.54
Figure 14-22 Uneven ground effect is magnified as the ladder increases in height.
![Page 55: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/55.jpg)
Ladder Load
• Number of people permitted on ladder at one time will vary
• Load capacity based on weight• Recommended maximum load
found on label affixed to ladder
14.55
![Page 56: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/56.jpg)
14.56
Figure 14-23 Ladders must be positioned properly and not overloaded.
![Page 57: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/57.jpg)
Working Off a Ladder
• Firefighter secured to ladder– Ladder belts– Safety harness– Leg lock
14.57
Figure 14-25 Leg lock.
![Page 58: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/58.jpg)
Ladder Storage
• Supported by more than two support points
• Should be stored on a flat surface• Avoid using the same contact points
when storing ladder
14.58
![Page 59: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/59.jpg)
Apparatus Ladder Storage
• Should be stored under cover in compartments
• De-icing products on ladders during inclement weather
14.59
![Page 60: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/60.jpg)
Ladder Apparatus Parking
• Place ladder apparatus at an angle to the fire building
• Ladders need to be easily accessible and removed
14.60
Figure 14-27 (A) It is important to leave room to remove portable ground ladders. (B) Parking apparatus can impede ladder access: parking on an angle can be a simple solution.
(A)
(B)
![Page 61: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/61.jpg)
Ladder Painting
• Should never be painted as a means of maintenance
• Only small areas should be painted:– Identification– Visibility– Quick reference– Hoist points
14.61
![Page 62: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/62.jpg)
Certification andTesting Procedures
• NFPA Standard 1931 outlines specific procedures for ladder testing and certification
• When ladder model is designed, rigid testing is needed
• Ladder label attests that ladder is in compliance with NFPA and OSHA guidelines
14.62
![Page 63: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/63.jpg)
Ladder Skills
• Without common terminology and technique, the moving and positioning of ladders can be chaotic
• Commands should be established by local department policy
• Basic commands relying on common sense should be the norm
14.63
![Page 64: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/64.jpg)
Carrying Ladders
• Several techniques used for carrying ladders:– Suitcase carry– Shoulder carry– Flat carry
• Single firefighter can carry a small ladder individually
• Many types of techniques used when dealing with a victim on a ladder
14.64
![Page 65: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/65.jpg)
Raising Ladders• Several considerations must be
weighed:– Heel of ladder must be a calculated
distance from building– Ideally, climbing angle should be about
75 degrees
• Number of firefighters needed to raise a ladder will vary
• Most situations call for two firefighters
14.65
![Page 66: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/66.jpg)
14.66
Figure 14-29 The working length is the distance from the ground to the point where the ladder contacts the building. The ladder is placed at a point approximately one-quarter of the working length from the building.
![Page 67: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/67.jpg)
Rung and Beam Raises• Two methods of raising a ladder:
– Two-person rung raise– Two-person beam raise
• Raising an extension ladder:– Fly extension raise– Three-person raise
• Four-person ladder raise safer than three-person raise– One firefighter should never bring down
a ladder
14.67
![Page 68: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/68.jpg)
14.68
Figure 14-30 (A) Beam raise. (B) Rung raise.
(A)
(B)
![Page 69: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/69.jpg)
Leg Lock
• Used to secure firefighter to ladder• Both hands are needed to perform a
task• Ladder belt is not available• Second alternate leg lock known as
hyper-extended leg lock
14.69
![Page 70: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/70.jpg)
Carrying Tools
• When carrying tools, security is sacrificed
• Tools should be passed up to another firefighter first
• Tools can be hung on an upper rung and climbed to
• Tools can ride up the rails of an aerial ladder
14.70
![Page 71: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/71.jpg)
Mounting and Dismounting• Getting on and off a ladder is the
most difficult action for the uninitiated– As height increases so does fear of
falling– If ladder is not secured by rope, it
should be heeled by another firefighter– When climbing into a window from a
ladder, two methods are used– Special care should be observed when
mounting or dismounting ladder from ornamental works
14.71
![Page 72: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/72.jpg)
Roof and Ladder Deployment
• Raised to the eave of the roof directly under desired access point
• Hook ladder is raised alongside pre-positioned ladder using beam-raise method
14.72
![Page 73: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/73.jpg)
Hoisting Ladders by Rope
• Need to use ladder from elevated location might arise– Hoisting ladder by rope
• When lowering ladder, procedure is reversed
14.73
![Page 74: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/74.jpg)
Types of Truck-Mounted Ladders
• Many types of ladder trucks are used today
• Each designed to serve a particular function
14.74
![Page 75: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/75.jpg)
Aerial Ladder
• Apparatus-mounted ladder capable of reaching heights of 100 feet
• Various sections slide out from one another to produce greater reach
• Ladder’s reach achieved through use of cables and pulleys
14.75
![Page 76: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/76.jpg)
14.76
Figure 14-38 Aerial ladder raising mechanisms as seen from under a raised bed ladder.
![Page 77: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/77.jpg)
14.77
Figure 14-39 Ladder positioning terminology.
![Page 78: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/78.jpg)
Tower Ladder
• Standard piece of equipment in moderate to large departments
• Telescopic boom with mounted basket
• Affords people who suffer from a fear of heights
• Takes slightly longer to place into operation
14.78
![Page 79: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/79.jpg)
14.79
Figure 14-41 Tower ladder.
![Page 80: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/80.jpg)
Articulating Boom Ladder
• Also called snorkel ladder• Among the first designs for elevated
platform use• Uses several articulating booms• Can also be used as an elevated
water application platform or observation point
14.80
![Page 81: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/81.jpg)
14.81
Figure 14-42 A snorkel basket can reach places not possible with other types of apparatus.
![Page 82: Chapter 14 Ladders. Introduction Ladders provide access to elevated or below-grade locations Truss-type beams have replaced solid wood beams High-strength.](https://reader036.fdocuments.us/reader036/viewer/2022062423/56649d015503460f949d392b/html5/thumbnails/82.jpg)
Lessons Learned
• Ladders have many applications• Different types of ladders are
designed for a specific use• Ladder use is packed with additional
dangers that each firefighter must respect
14.82