Pumping/ drive Flashcards
1
Q
Pumping from the tank steps
A
- Spot the apparatus at the fire
2.Brake, put in pump, gauges, chock
3.Ensure tank to pump valve is open
4.If pump is two stage select” pressure” setting
5.Pull pre-connected hose line, or connect the required hose lines to a discharge valve
6.Open appropriate discharge valves when water is called for ENGINEER should communicate that hose line is being charged with tank water - Select PSI Mode on pressure governor
- Select pump pressure for appropriate pre connect
TRANSITIONING FROM tank to HYDRANT
1.Connect supply hose to 2.5 aux intake
2.Open the auxiliary intake drain valve - Charge supply hose or give signal to charge line
- Close intake drain valve after steady stream of water is produced.
- Open the intake valve slowly ensure the electric governor is adjusting to incoming pressure there should be no more than 10 psi change
- Communicate that a water source has been established
- May close the tank to pump valve
- Refill engine water tank
- Housekeeping kinks, couplings and cones
2
Q
Shut down procedures steps
A
- Throttle down the engine
- Gate down discharge valves Slowly
- Provide for water circulation
- Refill water tank if needed
- Shut down intake
(DRAFTING)6.Open tank to pump - Reset relief valve if equipped
- Disengage pump
- Place chock for slope
- Walk around engine restore equipment
3
Q
Forward Lay Steps
A
- Stop 10-15’ past fire hydrant and set brake
- Upon receiving signal to “Go”, proceed to the incident scene(Max15mph).
- if hydrant is on opposite side of street from incident, crossover at the incident scene - Stop, set brake, engage pump, check gauges, and place chock down
- select pressure setting
- Dual lines laid clamp right side. Do not give signal yet!
- Pull off sufficient hose to reach Aux. intakes
- Disconnect couplings. Leave right side line
- Connect supply hose to the 2.5” Aux intake(driver side)
- Open the Aux. drain valve
- Give hydrant person signal to charge lines, leave hose clamped line in place until ready to connect
- close bleeder after steady stream of water is produced
- SLOWLY open the suction intake valve
- Mark static intake
- Slowly open appropriate discharge when water is called for
- Increase pressure to IOP, mode, preset up or down to IOP(computer maintains the set discharge pressure by adjusting engine RPMs in response to pressure fluctuations)
- Make hydraulic calculations and set final pump pressure
- Housekeeping kinks couplings cones
4
Q
Reverse Lay Steps
A
- Stop at incident scene
- Upon receiving the signal to “GO” proceed to hydrant(max 15 mph)
- Correctly spot apparatus at the hydrant
- Set parking brake, engage pump, gauges, place chock
- open front bleeder valve
- Connect 4” front intake hose to hydrant and charge hydrant
- After a steady stream of water is produced from the bleeder valve, closed bleeder valve and slowly open the suction intake valve
- Mark static intake pressure on gauge
- Pull off sufficient hose to reach discharge outlets and BRAKE couplings
- Connect discharge lines USING DOUBLE FEMALE couplings
- Open appropriate discharge valves when water is called for
- Increase to IOP mode, preset, up or down
- Make hydraulic calculations and set final pump pressure
- Housekeeping kinks couplings cones
5
Q
Pumping to FDC steps
A
- Spot apparatus at the hydrant
- Set P brake, Engage pump, gauges, place Chock
- Open front intake bleeder valve
- Connect 4” front intake hose to hydrant and charge hydrant
- After a steady stream of water is produced from the bleeder valve, close the bleeder valve, and SLOWLY open the suction intake valve
- Mark intake pressure
- Pull off sufficient hose to reach discharge outlets and FDC
- Connect discharge lines and FDC connection
SPRINKLER SYSTEM - Open appropriate discharge valves
- Pump 150 psi to the FDC
STANDPIPE - Open appropriate discharge valves when water is called for
- Increase pressure to IOP mode, preset
- Make hydraulic calculations and set final pump pressure
- Housekeeping kinks couplings cones
6
Q
Drafting steps
A
- Spot engine as close as possible to water source and set P brake
- Chock wheel
- Close tank to pump valve and all discharge valves including tank filler and bypass cooling
- Connect hard suction hose to pump intake and strainer after checking for gasket, tighten all fittings completely
- Place suction strainer in water at least 18”
- Establish a recirculation hose line
- Walk around entire apparatus. Make sure all discharges, nozzles, intakes, and drains are closed tightly
- Engage pump type 1= midship type3=PTO/Hydrostatic, switch to volume
- Backfill intake hose, if there’s water in tank: open intake valve and tank to pump valve. Close tank to pump valve once hose is full of water from tank
- Open suction valve if not already open and while in RPM mode, accelerate engine to 1000-1300 RPM
- Engage priming pump (30 sec max) until pressure builds on the discharge gauge and a steady stream of water flows from the primer pump
- SLOWLY open the recirc discharge valve until a steady flow is established from the recirc line
- Check the three indicators of success water flowing through intake, pressure increase on pump discharge gauge, and water flowing out of recirc line
- Attach the necessary discharge hoselines as needed for pump operations
- Switch to PSI mode
7
Q
Friction loss per 100’ of 1.5” hose with fog nozzle gpm 40
A
4psi
8
Q
Friction loss per 100ft 1 3/4 with fog nozzle 125gpm
A
24psi
9
Q
Friction loss per 100ft with 2 1/2” hose with fog nozzle 250gpm
A
13psi
10
Q
Friction loss per 100ft with 2 1/2 with fog nozzle at 125gpm
A
3psi
11
Q
Friction loss per 100 ft of 3” with fog nozzle at 250 gpm
A
5psi
12
Q
Friction loss per 100 ft of 3” hose going to monitor with master fog nozzle 1000gpm
A
20psi
Ex. 100psi + 15 + 20=135psi
13
Q
Friction loss per 100 ft of 3” hose with 1 3/8 smooth bore tip 500gpm to monitor
A
5 psi
14
Q
Friction loss per 100 ft of 3” hose with 1 1/2smooth bore tip 600gpm to monitor
A
7 psi
15
Q
Friction loss per 100 ft of 3” hose with 1 3/4smooth bore tip 800gpm to monitor
A
13 psi
16
Q
Friction loss per 100 ft of 3” hose with 2” smooth bore tip 1000gpm to monitor
A
20psi
Ex 80 psi +15 + 20 =115 for 100ft
17
Q
Friction loss coefficient for 1" 1 1/2" 1 3/4" 2 1/2" 3" 4"
A
1"=150 1 1/2"=24 1 3/4"=15.5 2 1/2=2 3"=.8 4"=.2
18
Q
Initial operating pressures for Highway & Blitz= Preconnect Crosslays= Blitz line w/wye 1 line= Blitz line w/wyes 2 lines= Sprinkler system @ FDC= IOP=
A
Highway blitz =125psi Preconnect/Crosslay=150psi Blitz line w/wye 1 line=130psi Blitz line w/wye 2 lines= 150psi Sprinkler system @ FDC =150 psi IOP=125psi
19
Q
Appliance friction loss Standpipe Portable monitor 4 way valve Wye or Siamese
A
Standpipe =25psi
Portable monitor = 15psi
4 way valve= 15psi
Wye or Siamese =0
20
Q
Nozzle pressure
Handheld fog
Master stream fog
Master stream SB
A
Handheld =100psi
Master stream fog=100psi
Master stream SB= 80psi
21
Q
Like volumes 10% or less drop= 11-15% drop= 16-25% drop= Greater than 25% drop=
A
Like volumes 10% or less drop=3 like gpm 11-15% drop=2 like gpm 16-25% drop=1 like gpm Greater than 25% drop= possibly a less gpm
22
Q
Gpm for smooth bore nozzle monitor 1 3/8= 1 1/2 1 3/4 2
A
Gpm for smooth bore nozzle monitor 1 3/8=500gpm 1 1/2=600gpm 1 3/4=800gpm 2=1000gpm
23
Q
Volume for rectangle and cylinder
A
Rectangle =LWH*7.5
Cylinder =6(D^)*H
24
Q
Apparatus Operator Minimum Daily Inspection
Approach/ walk around
A
- note overall condition of vehicle
- look under vehicle for fluid leaks or hanging equipment
- tires(condition,inflation/thump test, depth)
- damage to apparatus or missing equipment
25
Apparatus Operator Minimum Daily Inspection
Fluids
Check all fluids from engine access hatch
-engine oil-check with engine off
-transmission fluid-must be checked while engine is running
-coolant level- check overflow reservoir daily
Radiator weekly
-power steering fluid( check while running, cold or hot)
26
Apparatus Operator Minimum Daily Inspection
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Air Brake
C
O
L
A
```
C-Cut in ( no lower than 85psi)
O-cut Out(110-120,130maxpsi)
L-Low air warning(55-75psi)
A-Air leakage(2psi static, 3psi applied)
27
Apparatus Operator Minimum Daily Inspection
Gauges
- fuel above 3/4 tank
- oil pressure
- voltmeter
- temperature
28
Apparatus Operator Minimum Daily Inspection
Pump Operation
-in cab pump check
Engage pump, confirm "ok to pump" light is on, transmission is in 4th gear, speedometer is registering speed
-outside pump check
Place chock, pump discharge gauge should read approximately 50 psi, check primer pump operation, ensure governor operation, flow red line, ensure water in tank
29
Apparatus Operator Minimum Daily Inspection
Lights
- dot (parking lamps, headlights, tail lights, 4 way)
- emergency (engage "master ", minimum one solid red), siren test
- Dot electric horn
- air horn
