Aerial extra cards

Question 1

Platform apparatus loads wet/dry

Answer 1

• min load capacity of 750 lbs when dry

- 500 lbs wet

Question 2

what are the 4 types of valves for a hydraulic system

Answer 2

1) check valves
2) relief valves
3) counterbalance valves
4) selector valves

Question 3

Manual controls

Answer 3

used when the system will not allow for normal operation

Question 4

Overrides

Answer 4

used when the electrical system malfunctions or the interlock will not allow operation

Question 5

Emergency Power Unit (EPU)

Answer 5

• electric motor that is connected to the hydraulic system

- will operate the system if the main pump/motor fails.

Question 6

What are 3 types of stabilizers

Answer 6

1) A-frame
2) Box
3) Straight jacks

Question 7

The proper distance between the objective and the aerial apparatus is one that

Answer 7

1) Affords maximum stability
2) The best climbing angle
3) Allows for adequate extension

Question 8

Ladders are weakest at

Answer 8

• long extensions and low angles

Question 9

All AFR ladders are designed to operate in the

Answer 9

cantilever position
(do not rest tip of ladder on anything)

Question 10

DO NOT

Answer 10

extend or retract ladder while a FF is at the tip

Question 11

Platforms types and heights
L-13

L-21

Answer 11

• 100 ft Rear-mount

- 95 ft Mid-mount

Question 12

Platform stabilizers will only correct

Answer 12

• 5 degrees of slope and grade

Question 13

Override

EPU

Answer 13

• you as an operator have to override the system over the manufacturers recommendations
• when something fails you have to bed or have an issue (small motors/be careful of run times)

Question 14

actuators

Answer 14

• devices that convert fluid power developed in the system back into mechanical force.

Question 15

interlocks

Answer 15

• keeps the ladder from operating if the stabilizers are NOT secure or aerial device is not bedded correctly
• can be overridden

Question 16

limiting switches

Answer 16

• when ladder is reaching its full extended reach and retracting, ladder may slow itself down to prevent slamming the hydraulic systems.

Question 17

Regen Process

Answer 17

• hold ENGINE TEST switch for 6 sec
• exhaust 10 ft away temps can reach 1,000 degrees
• can take 40 to 120 minutes
• to cancel engage foot break and turn on engine test switch

Question 18

L-17 set up

Answer 18

• lower front stabilizers first but do not fully extend, then move to the back and lower rear stabilizers simultaneously approx 6 inches.
• Do not forget to check slope and grade to see if you are in the green.

Question 19

Always check where nozzle is

Answer 19

• Do not forget where your nozzle is, depending the situation for rescue or attack.
• Attack the nozzle will move to the tip for rescue nozzle will stay below tip. Always leave in rescue.

Question 20

Autofails

Answer 20

• fails to apply parking brake
• fails to apply front wheel lock
• fails to place wheel chocks at front tire
• front tires not in contact w/ground
• safety pins not in place
• failure to demonstrate how to operate the pinable waterway
• aerial ladder strikes an object
• placement of aerial ladder incorrect for the given scenario
• personnel climbing aerial ladder w/o ladder belt
• fails to remover personnel from the aerial ladder before bedding the device

Question 21

when bedding ladder make sure to check

Answer 21

that the drain is open

Question 22

WARNING

Answer 22

-any time that an override or manual controls are used ALL safety systems are over ridden.

Question 23

Override Controls require

Answer 23

• two operators
  one to hold the override switch
  one to operate controls
• these controls should only be used to get you back from a dangerous situation.

Question 24

Aerial rotation overrides

Answer 24

• if a stabilizer becomes unstable or a sensor has failed and you are unable to move the aerial ladder, activate the aerial rotation override and bed the ladder by moving it

Question 25

Seagrave 100’ EPU switch locations

L-4 & l-15

Answer 25

• on switch is located in the front panel under the aerial control consoles on the pedestal
• the other two are are located on in each of the outrigger control boxes

Question 26

Seagrave short jack procedure will limit range by how much?

Answer 26

the aerial limits the rage of rotation to 15 degrees from center line of the truck on short jack side. Must be overridden if needed to go beyond 15 degrees.