FIREFIGHTER I • LESSON 12A

1. FIREFIGHTER I • LESSON 12A

2. FIRE HOSE TERMS TS 12A–1a • Expansion-ring gasket — Gasket used at the end of hose where it is expanded into coupling shank • Fire hose — Type of flexible tube used to carry water under pressure from source of supply to point where it is discharged • Hose bed — Hose storage compartment • Dutchman — Reverse bend at coupling of bedded hose that allows it to be payed out without bending • Flake — To lay out fire hose in a loose accordion pattern to reduce chances of hose tangling and kinking when pulled

3. FIRE HOSE TERMS (cont.) TS 12A–1b • Shank — That portion of coupling that serves as a point of attachment to the hose • Standpipe — Wet or dry piping system that provides fire department outlets and private hoseline • Storz coupling — Sexless coupling commonly found on large diameter hose • Swivel gasket — Gasket used to make a watertight connection between male and female couplings

5. NFPA 1901 PUMPER HOSE REQUIREMENTS TS 12A–2 • Attack hose — 400 ft. (122 m) of 1½-, 1¾-, or 2-in. (38 mm, 45 mm, or 50 mm) • Supply hose — 1,200 ft. (366 m) of 2½-in. (65 mm) or larger • Soft-sleeve intake hose — 15 ft. (5 m), large diameter, or hard-suction intake hose — 20 ft. (6 m)

6. HOSE APPLIANCE VALVES TS 12A–3 Ball Valves Gate Valves Butterfly Valves Clapper Valves

7. VALVE DEVICES & HOSE FITTINGS TS 12A–4 • Valve devices • Wye appliances • Siamese appliances • Water thief appliances • Large diameter hose appliances • Hydrant valves • Fittings • Intake devices

8. HOSE TOOLS TS 12A–5 • Hose roller (hoist) • Hose jacket • Hose clamp • Spanner, hydrant wrench, and rubber mallet • Hose bridge or ramp • Chafing block • Hose strap, hose rope, and hose chain

9. HOSE CLAMP USES TS 12A–6 • Prevent charging the hose bed during hose-lay operations • Allow replacement of a burst section without shutting down the water supply • Allow hoseline extension without shutting down water supply • Allow advancement of a charged hoseline up stairs

10. HOSE CLAMP RULES TS 12A–7 • Apply at least 20 feet (6 m) behind apparatus. • Apply approximately 5 feet (1.5 m) from coupling on incoming water side. • Stand to one side when applying or releasing press-down type. • Center hose evenly in jaws to avoid pinching hose. • Close and open slowly to avoid water hammer.

13. CARE OF FIRE HOSE COUPLINGS TS 12A–8 • Avoid dropping and/or dragging couplings. • Do not permit vehicles to run over fire hose. • Examine couplings when hose is washed and dried. • Remove gasket, and twist swivel in warm, soapy water. • Clean threads to remove tar, dirt, gravel, and oil. • Inspect gasket, and replace if cracked or creased.

16. HOSE LOADING GUIDELINES TS 12A–9a • Check gaskets and swivel before connecting any coupling. • Keep flat sides of hose in same plane when connecting two sections. • Tighten couplings hand-tight when two sections are connected. • Remove wrinkles from hose when it must be bent to form a loop in the hose bed — press with the fingers so that inside bend is smoothly folded.

17. HOSE LOADING GUIDELINES (cont.) TS 12A–9b • During loading, make a short fold or reverse bend in the hose so that couplings do not have to be turned around to be pulled out of bed. • Load large diameter hose with all couplings placed at front of bed. • Do not pack hose too tightly.

18. HOSE LOADING METHODS TS 12A–10a • Coupled and folded into hose bed — Attack and supply lines • Preconnected and folded into hose bed — Collapsible attack and supply lines • Racked, compartmentalized, or secured to apparatus • Preconnected or unconnected soft-sleeve and hard-suction intake hose • Attack and intake hose that is loaded on raised trays or in tailboard compartments, side bins, or front bumper wells

19. HOSE LOADING METHODS (cont.) TS 12A–10b • Preconnected and reel wound • Noncollapsible booster line • Some large diameter hose • Some attack handlines • Tied bundles or rolls • Standpipe hose • Wildland attack hose

21. ACCORDION LOAD TS 12A–11 • Advantages • Simple design • Easily loaded • Easily shoulder-loaded for carrying • Disadvantage — Loaded on edge, subjecting edges to wear from apparatus vibration

23. HORSESHOE LOAD TS 12A–12 • Advantage —Fewer sharp bends than accordion or flat loads • Disadvantages • In wide hose beds, hose may come out in a wavy, snakelike lay in the street as hose is pulled from one side of the bed to the other • Folds for shoulder carry cannot be obtained as easily as for accordion load • Large diameter hose tends to fall over in bed and may become entangled

25. FLAT LOAD TS 12A–13 • Advantages • Easiest to load • Suited to any size supply hose (best way to load large diameter hose) • Folds lie flat rather than on edge so is not subject to edge abrasion • Disadvantages • Folds contain sharp bends at both ends • Hose must be reloaded periodically to relocate the bends

26. PRECONNECTED HOSE LOADS FOR ATTACK LINES TS 12A–14 Preconnected Flat Load Triple Layer Load Minuteman Load

29. HOSE LOAD FINISHES TS 12A–15 Straight Finish Reverse Horseshoe Finish

32. STRAIGHT HOSE ROLL TS 12A–16 • Used when hose will be placed in storage, especially rack storage • Used when hose will be returned to quarters for washing • Reversed (male coupling exposed) to identify a damaged coupling or hose section

34. DONUT HOSE ROLL TS 12A–17 • Used when hose is going to be deployed directly from a roll • Advantages over straight roll • Both ends are available on the outside of the roll • The hose can be quickly unrolled and placed in service • The hose is less likely to kink or spiral when unrolled • One or two firefighters can perform a donut roll

36. TWIN DONUT HOSE ROLL TS 12A–18 • Is most adaptable to 1½inch (38 mm) and 1¾-inch (45 mm) hose, though it can be used on hose up to 3 inches (77 mm) • Provides a compact roll that can be carried for special applications such as high-rise fires • Creates couplings on the outside of the roll • Can be coupled together for protection if the couplings are offset • Creates its own carrying strap and requires no additional rope