Operating Fire Pumps

Operating Fire Pumps PowerPoint PPT Presentation

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Three Sources of Water Supply . Tank Water Pressurized source Static Source . Making the Pump Operational begins with:. Positioning the apparatus Setting the parking brake Wheels are chocked. Engaging PTO

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Operating Fire Pumps

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1. Operating Fire Pumps Chapter 11 Mississippi Fire Academy Certification Division

2. Three Sources of Water Supply Tank Water Pressurized source Static Source

3. Making the Pump Operational begins with: Positioning the apparatus Setting the parking brake Wheels are chocked

4. Engaging PTO & Front Mount Pumps Pump & Roll Come to a stop Place transmission in neutral Operate PTO Place transmission into proper gear Release brake and/or clutch

5. Engaging PTO & Front Mount Pumps (Stationary Pump) Come to a full stop & set parking brake Place transmission into neutral Operate PTO Place transmission into proper gear Check Owner’s Manual

6. Disengaging PTO and Front Mount Pumps Reduce engine speed to idle Disengage clutch or place transmission in neutral Operate PTO to disengage pump

7. Engaging Midship Pumps Stop vehicle, put transmission in neutral, set parking brake Engage power transfer device Place transmission into proper gear Check owner’s manual Check pump transfer light and speedometer

8. Disengaging Midship Pumps Reduce engine Place transmission in neutral Watch speedometer go to zero Operate pump shift lever

9. Auxiliary Engine Pumps Designed to be in gear when started

10. Operating from the Water Tank Most fires may be extinguished from this source.

11. Putting the Pump into Operations Safely exit Chock Wheels Opens tank-to-pump Place pump in parallel or series (two stage pump only) Open discharge slowly Increase engine speed Set relief valve

12. Transition to External Water Supply Usually involves a pressurized source such as a hydrant or relay.

13. Making the Transition Position the apparatus Place transmission in neutral Operate shift lever to pump gear Put transmission into proper gear Exit the vehicle

14. Making the Transition (continued) Chock the wheels Open tank to pump Place pump to pressure or volume Open discharge slowly Increase RPM

15. Making the Transition (continued) Set relief valve Connect supply line Open hydrant Open intake valve Crack tank refill

16. Operating from a Pressurized Source Two sources: 1. Hydrant 2. In Relay

17. Hydrant Operations Determine which hydrant is most appropriate Closet Safest Most water

18. Making a Forward Lay Drop line and proceed to the fire Make connections

19. Reverse Lay Used when the apparatus must stay at the source Requires 2½ or larger line Disadvantage-all equipment must be removed

20. Getting the Water Into the Pump Open bleeder valve to bleed air Open hydrant Close bleeder valve Open intake Take static reading

21. Getting the Water Into the Pump (continued) Close tank-to-pump valve slowly Open discharge Operate throttle Set relief valve Watch gauges

22. Putting the Pump in Service Avoid “dry running” Pull booster line Crack tank fill Open auxiliary cooler

23. Shutting Down the Hydrant Throttle down Disengage pressure governor Close discharges Place transmission in neutral Close hydrant

24. Operating from a Static Water Supply Pulling water is Impossible Atmospheric pressure is 14.7 at sea level Friction loss is dependant on Size of hose Distance Height of lift Maximum vacuum most pumps develop is 22 inches

25. Selecting a Drafting Site Dictated by: Amount of water Type of water Accessibility of water

26. Amount of Water Most important factor Use strainer

27. Type of Water Non-potable Water is harmful Salt water corrodes Dirt or sand is bad stuff

28. Accessibility Lift and Friction loss factors to consider Pump capacity decreases with more lift The higher the lift, the less that can be pumped

29. Connecting to the Pump Position Apparatus Less than 20 ft of lift Stop short of draft sight Make connections Move pumper into position

30. Priming Engage pump Increase RPM Open discharge Operate changeover valve if applicable Increase rpm to proper setting Set relief valve or governor

31. Operating the Pump from Draft Most demanding Overheating may occur Problems to look for: Air leaks Whirlpools Defective pump packing Blocked strainer

32. Shutting Down the Operation Decrease engine speed Take pump out of gear and allow to drain Operate primer to lubricate

33. Sprinkler & Standpipe Support Driver/Operator provides adequate water and pressure.

34. Supporting Automatic Sprinkler Systems Consider pre-incident plans Consists of 2 x 2½ or 1 large diameter intake Use at least 2 x 2½ inch or 1 LDH to supply Consult SOPs Rule of thumb 1,000 gpm pumper for every 50 heads Pump in volume on Multi-stage pumps

35. Supporting Standpipe Systems Supply in same manner as sprinkler systems Discharge depends: Friction loss (25psi) Friction loss in supply hose Friction loss in attack lines Max 200 psi Elevation

36. Thanks To Kosciusko Fire Department Flowood Fire Department

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