Pumping knowledge

Question 1

Type 1 pumper capabilities

Answer 1

100% of rated capacity at 150 psi
70% of rated capacity at 200 psi
50% of rated capacity at 250 psi

Question 2

Air must build up to what before releasing air break?

Answer 2

60 psi

Question 3

how far do you park away from a car fire?

Answer 3

75-100 feet

Question 4

What happens when frontal impact protection is avtivated?

Answer 4

• Seatbelts retract and tighten
• It pulls the air ride seats to the lowest level.
• Deploys side curtain air bags from the seatback head rest.
• deploys air bags in steering wheel
• deploys air bag in front of officers knees

Question 5

DEF cunsumption

Answer 5

2-3% of fuel consumption

Question 6

2 types of regen

Answer 6

• passive regen- Can occur during normal engine operations, driving or pumping. No action needed by the driver.
• Active regen - The apparatus may active regen without any action by the driver. However, when needed, driver can assist in activating the regen by changing the ‘duty cycle’ of the engine, i.e. switch to highway driving or pumping conditions, or initiating a parked regen.

Question 7

Steps when initaiting parked regen

Answer 7

• park outside, off roadway, on clean/ clear surface - no asphalt!
• Minimum 5 ft clearance around exhaust and away from people, or any flammable material.
• Temps during regen can reach up to 1500 degrees.

Question 8

HEST light illuminates when exhaust is over what temp?

Answer 8

• 977 degrees
• HEST light will remain illuminated until exhaust temp drops back to normal.

Question 9

How long does parked regen take?

Answer 9

20-40 minutes

Question 10

Check engine light

Answer 10

engine may have exceeded its limits - check gauges. Contact shops.

Question 11

Stop engine light

Answer 11

Major engine fault, serious damage may result. Move to nearest safe location and contact shops.

Question 12

Malfunction indicator light (MIL)

Answer 12

Indicates a fault of an emission related component. Contact shops.

Question 13

Diesel particulate filter light (DPF)

Answer 13

• Light is solid - Vehicle requires regen in reasonable amount of time.
• Light flashing - vehicle requires regen ASAP.
• Light in combination with stop engine light - immediately move to nearest safe location, shut down, take out of service.

Question 14

Def indicator light

Answer 14

• Solid - between 1/4 and 1/8 full
• Flashing - below 1/8 full

Question 15

Fan engagement

Answer 15

• Fan clutch will engage when one or more conditions met:
• engine coolant or air intake reaches 220 degrees.
• placing the truck in “pump gear”

Question 15

Electronic transmission fluid check

Answer 15

• Fluid temp is between 140-220 degrees.
  Vehicle has been stationary for about 2 minutes.

Question 16

Antilock braking system (ABS)

Answer 16

• also allows for Anti-slip-resistance (ASR).
• If one wheel is off the road, spinning, ASR will apply that brake to increase torque to the other wheel.
• If both wheels are spinning ASR will reduce the engine torque to match the conditions.
• ASR is completely automatic.

Question 16

Off road traction control switch

Answer 16

• Use when you don’t want ASR to work at 100%.
• in conditions such as deep mud, snow, loose dirt, or sand

Question 17

Onspot chains

Answer 17

• Engage when going 2-25 mph
• Do not exceed 35 mph.

Question 18

PSI to operate pump

Answer 18

Must have 80 psi or greater to operate pump.

Question 19

Steps to manually engage pump

Answer 19

1. In neautraul, park break set, at idle; Driver puts the ‘pump shift control’ lever in the middle position.
2. Second person pushes in the ‘manual pump shift override’ handle (on pump panel)
3. With handle held in, driver puts ‘pump shift control’ lever to pump and shifts to drive.

-Control lever must be in pump for throttles and interlocks to function.

Question 20

Pump pressure system governor (Enforcer)

Answer 20

• When placed in pump gear, defaults to Pressure Control mode for pressure and cavitation protection.

Question 21

Enforcer Foam system: Flow at what percentage?

Answer 21

• Can flow 3,000 gpm at 0.4%
• 30 gallon tank 7,500 gallons of foam solution at 0.4%