Pierce Enforcer Flashcards
Gross Vehicle Weight
44,000 lbs (22.0 tons)
Vehicle Height
9’ 11”
Vehicle Length
31’ 1/4”
Tank size (Water / Foam)
600 gal / 30 gal
Engine HP
Cummins 450 hp
Pump capacity (gpm)
1500 gpm
Size compared to Quantum
4 ft shorter length
2 ft shorter wheel base
(Turns sharper)
NFPA 1901
All equipment in cap, except for wht is needed in emergency response, must be secured in cabinet or bracket
- Use helmet holders
- Do not store anything in area needed for air bags; nothing w/in 4” of the offer’s knee bag
Side roll and front impact safety
apparatus accidents #2 killer of firefighters; 60% involve a rollover
- front impact protection: Pre-tensioner, seat retraction, side and front airbags
- rollover protection (SRP): retract and tighten seatbelts, pull air ride seats to lowest position, deploy side airbags
Diesel Exhaust Fluid (DEF) reservoir size
4.5 gal
DEF consumption is 2-3% of fuel consumption - refill DEF every other fuel fill
Passive Regen
Occurs during normal engine operation (driving or pumping)
Active Regen
May occur without action by driver, but driver can activate by switching to highway driving or initiating a parked regen. Occurs when:
- sufficient soot in filter
- sufficient exhaust flow and temp
>5 mph on speedometer
NO NEED TO INHIBIT REGEN DURING PUMPING
Parked Regen Temperatures
Exhaust temp reached 1500 degrees
- Keep 5’ clearance around exhaust
- Do not park on asphalt
- Park off roadway
- Do not have ladders near exhaust
HEST light illuminates when exhaust > 977 degrees
Cancelling a parked regen
No need to take vehicle out of service during regen
To respond to call:
- press regen inhibit switch, or:
- step on throttle, release parking brake, put transmission in gear, turn ignition off
Indicator Lights
Check Engine: Contact maintenance
Stop Engine: Major fault, take out of service
Malfunction indicator light (MIL): fault of emission related component, contact maintenance
Diesel Particulate Filter (DPF) light - solid (not flashing)
Initiate regen in reasonable amount of time
DPF light (flashing)
Regen ASAP
DPF light w/ Check Engine light
Parked Regen MUST be performed… if DPF light remains on, do another regen. If DPF light remains on after 2nd regen, take out of service
DPF light w/ Stop Engine light
Take out of service immediately
HEST Light
Indicates active regen has been initiated, exhaust temp > 977 degrees (occurs when vehicle stationary or >5mph)
DEF Indicator Light (solid color)
Between 1/4 and 1/8 full
DEF indicator light (flashing)
Below 1/8 full
When does fan clutch engage to cool the engine?
1) engine coolant or air intake temp exceeds 220 degrees, OR;
2) Engine in Pump gear
What does shoreline plug charge (other than apparatus batteries)?
1) Plug in officer’s rear compartment
2) Water heater for decon rinse system
Warm water decon tank size
18 gallons
Warm Water Decon heater types
Two heaters, 12v and 120v
Warm water decon system - how long does it take to fully warm on shore power?
45-60 mins
If station GFI trips on shorepower, what do you do?
Turn off 120v warm water decon heater
Warm water decon system - what happens when water float shows low water in warm water tank?
1) Turns off both heaters
2) illuminates warning light
Warm water decon system - best practice for “on-demand” pump
Leave pump off unless needed
Pump can be on without valve open
Filling warm water decon system tank
ONLY FILL WITH POTABLE WATER (not hydrant water)
use garden hose intake low on pump panel
Fill until water is draining from overflow (check valve prevents water from draining through inlet)
What type of oil should be used in the Engine?
API CJ-4 15W-40
Oils that are not CJ-4 damage the after treatment system
5 conditions needed to do electronic transmission fluid check
1) fluid temp 140-220 degrees
2) In Neutral
3) Engine at idle
4) trans output shaft is stopped
5) vehicle stationary for 2+ mins
How to do electronic transmission fluid check
Press up and down arrow keys at the same time (oil level now displayed in plain english)
Cycle through different transmission diagnostics by pushing up/down arrows
What do do if transmission fluid is low when doing electronic transmission fluid check?
Contact the fire shop
Anti-slip resistance (ASR) - what does it do?
If one wheel off the road spinning, ASR applies brake to that wheel to increase torque to other wheel
If both wheels spinning, ASR reduces engine torque to match conditions
ASR is 100% automatic, driver doesn’t need to do anything
When might you not want Anti-Slip Resistance (ASR) to work at 100%?
When trying to climb out of deep mud, snow, loose dirt or sand
How do you turn off the Anti-Slip Resistance (ASR)?
Press the Off Road Traction Control Switch
This will allow some slippage to assist in climbing out
Press it again to turn off…cycling ignition also resets
What are the features of Anti-Lock Braking (ABS) system?
Anti-Slip Resistance (ASR)
Stability Control: Roll Stability Control (RSC)
Stability Control: Electronic Stability Control (ESC)
Roll Stability Control (RSC) - What does it do?
senses when rollover may occur:
- reduces throttle
- applies retarder
- and/or selectively brakes wheels
Electronic stability control (ESC) - what does it do?
Controls skidding
compares where you are steering to where vehicle is actually moving
tries to correct by selectively applying brakes and throttle
(Driver still needs to provide steering input)
Onspot chains – effective in snow how deep?
4 inches
Speed requirements to engage Onspot chains
engage when traveling 2-25 mph just before hitting slippery conditions
DO NOT EXCEED 35 mph
How to silence alarms
Ignition switch “third position”…press and hold to silence active alarms
Will re-alarm for any new alarms
May be necessary to cycle parking brake for this feature to work
Overhead switches - Opticom
Infrared and not visible
Small LEDs on when its operating
Momentarily press and hold when master switch is not on
Overhead switches - Wheel Scene
Turns on lights over rear wheels
also activates turn signal and reverse emergency when emer master is on
Switches - Backup alarm disable
turns off back up alarm (resets when shifted out of reverse)
Switches - Load manager disable switch
system auto sheds electrical devices to maintain voltage - if this is a problem, disable shedding
But driver must then monitor electrical system
Switches - Front Wheel Lock
applies air to front brakes for additional holding
parking brake must be set first
apparatus must be running and attended
Command Zone Information Center (CZIC) - what’s on the home screen
Fuel level
DEF level
Seatbelts
Tire Pressure
(Displays cautions and warnings)
Press the menu button to get to other screens
CZIC - Engine information screen - what does it display
Battery voltage
Air pressure
Odometer
Coolant temp
Pump Shift Control Lever - Min PSI in air system to operate
Must have 80 PSI
Pump shift control lever - what is the middle position used for?
Manual pump engagement
Parking brake while in pump gear
Parking brake must be set to engage pump (hand throttle / PSG will not work without it)
If parking brake released while pumping, pump will disengage and pump slows to idle
Manual pump engagement – how many people does it require?
Two person operation (only in emergency situations)
Manual pump engagement three step process
1) In neutral, w/ brake set, in idle –> Move pump shift lever to middle position
2) 2nd person pushes in the manual pump shift on pump panel
3) With manual handle pushed in, driver puts pump shift lever in down position and transmission to D
Pressure System Governor (PSG) - switching between Pressure and RPM
Press and hold the Mode button
Works at idle or throttled up
PSG “Preset” pressure and RPM
125 PSI when in “Pressure” mode
1000 RPM when in “RPM” mode
“Inc” and Dec” buttons on PSG
One touch = 1 psi or 10 RPM
Hold for 2 sec = 5 PSI or 50 RPM twice, then 10 PSI or 100 RPM until button released
Cavitation protection - Pressure Mode
- Pressure falls -> PSG throttles up
- If PSG can’t recover, switches to RPM Limit
- If pressure recovers, returns to Pressure mode
- If does not recover but stays above 45 psi, remains in RPM limit
- If below 45 but >15 –> “Lo Water” model –> RPM set at 1100, idle after 7 seconds
- If below 15 psi –> No Water Mode, goes to idle
Cavitation protection – What happens if pressure resolves while in RPM Limit/Lo Water/No Water mode?
PSG returns to Pressure Mode
Cavitation Protection – In RPM Limit/Lo Water/No Water mode –> What happens if in idle and pressure does not resolve?
After 3 mins in idle, enters idle mode and pressure setting is canceled
Type of primer
Air primer, uses air pressure from brake system to crease venturi (no fluids or oil)
Auto priming
Starts when in pump gear and shuts off when primed (20 psi)
If loses prime while operating, automatically reprimes
Which valves have electronic controls?
Large Diameter and Deluge discharges
Main pump drain considerations
Do not open main pump drain under pressure
Side suction relief valves location
Under apparatus - difficult to adjust and will be left preset
DO NOT CAP
May cause vacuum leak when drafting
Manifold drain - when to open and why
FOAM system injects foam concentrate into a foam manifold
This manifold is pressurized and check valve keeps it so
AFTER EVERY PUMP OPERATION, TAKE OUT OF PUMP GEAR AND OPEN MANIFOLD DRAIN VALVE MOMENTARILY TO REVENT DAMAGE TO THE CHECK VALVE
Booster reel hose length/diameter, flow and friction loss
Length: 150’
Diameter: 1”
Flow: Designed for less than 50 GPM
FL: @ 30 GPM FL is 37 PSI per 50’ section
Booster reel: discharge gauge
There isn’t a dedicated gauge - use master discharge
Booster reel blowout
Blows pressurized water/air and clears all water, prevents mold, prevents freezing
Foam system: which discharges have foam?
All crosslays
booster reel
aft 2.5” discharge
Foam system: tank size/flow capacity
30 gallon tank
Can flow 3000 gpm at 0.4%
Can flow 7500 gallons water with 30 gal foam tank at 0.4%
Foam system: concentrate % for class A and class B fires
Class A: 0.1%
Class B: 0.4%
Activating foam system
Foam pump is active whenever in pump gear
When in pump, press on (red) button (foam pumps to match water flow)
Goes into standby at less than 20 gpm
Turning off foam system - procedure
Turn off with red button
Flow water until free of bubbles
Then flush with clean water (must be flushed after each use)
Drafting foam procedure
1) set pails at the panel and connect pickup hose to inlet
2) Press the “Page” button until “Draft Class A” appears
3) Press enter
4) Use Up/Down arrows to adjust %
Flushing foam system procedure
Needed every time (Nova Cool damages pump seals)
1) Flow water from a discharge
2) Press “Page” button to “Mode Select” screen
3) Use arrows to get to “Flush On/Off”
4) Press Enter
5) System Flush timer will countdown on screen
6) After flushing, open foam pump drains
7) Take out of pump gear and open manifold drain
Filling foam tank - dome fill method
Use only Novacool
Pour down round fill tube in center of tower (reduces aeration) - if bubbles form, stop and wait
Filling foam tank - pickup tube method
Set pails at pump panel
Connect pickup tube
Engage pump gear
Set foam selector valve to tank fill (behind door by foam fill inlet)
On screen press “Page” to get to “Mode select” screen
Toggle Up/Down to highlight the tank to be filled
Press Enter button, then toggle to “manual fill”
Tank will fill until full
Return foam selector valve back to “Inject”
