LM2021Edition Flashcards
(133 cards)
Aerial reach: The four-section steel ladder will extend to a height of 107’ above ground at ____ degrees and 100 ft horizontal at ____ degrees. The aerial will go ____ degrees above horizontal.
75
0
77
Ladder pipe:
It is capable of discharging up to 1000 GPM at 100 PSI with the nozzle in any position in a ____ wind.
50 MPH
The maximum flow rating on the automatic fog nozzles on the end of JFRD’s ladder trucks is _______ GPM.
2000
The aerial has the capapbility of going ____ degrees below horizontal by adjusting the stablilizers and _____ degrees below horizontal when manipulating stablizers and the aerial. This coupled with the nozzles ability to be pointed upward at a ____ degree angle allows for a ____________ (useful on strip malls, store fronts, and garage doors etc.) or some level of below grade access.
5 , 15
30
Blitz Attack
Tiller ladder:
Height ______
Length ______
GVWR ________
11 ft. 1.19 inches
58 ft. 7.5 inches
73,300 lbs (36.65 tons)
The aerial is equipped with a _________________ that will prevent the aerial from being rotated to the side where the stabilizer is not fully developed or when short-jacked.
rotation interlock system
The ladder is equipped with ____________ and a _______________ to restrict ladder movement when system hydraulic pressure is not present.
The ladder has a safety factor of _______ based on the rated load.
holding valve cartridges, rotational brake
2 to 1 (2:1)
Stabilizer deployment warning (beeper) alarm:
The warning alarm will deactivate when ______________________________________.
all stabilizers are in the load support position.
A “stabilizer not stowed” indicator light, located in the _______________, illuminates automatically when a stablilizer is not _____________.
driver’s compartment, fully stowed.
As a safety feature the jack cylinders are equipped with ____________________ that will hold the cylinder in place should a hydraulic line become severed.
integral holding valves
Emergency Hydraulic Power Switch (Aerial Controls): activates the secondary hydraulic system (EPU). The proper sequence is to activate the desired function, then place the EPU switch in its _____ position until the operation is complete, then ______ the EPU switch before returning the manual control handle to the ________ position.
ON
release
neutral
If the electronic system has failed and the ___________ or ___________ are being used, the ______ switch located at the manual stabilizer controls will be the only one active.
manual stabilizer, stabilizer controls, EPU
Aerial Speed Switch (High Idle Switch): Allows the aerial to be __________________.
operated faster.
Tip Tracking Lights Switch: when activated, the switch energizes the spot lights located on each side of the ladder tip and the ________________.
lower tracking lights.
Nozzle deployed/fault indicator: When the indicator is lit, the nozzle is in the fully stowed position (________ light on as in the picture. The indicator goes out whenever the nozzle is moved from the stowed position.
orange
Emergency stop: There are (__) total emergency stop buttons located on the ladder. There is (__) located at each lower control station ( ___ on each side of the ladder) and (__) located at the turntable control console.
Twist the button ________ to deactivate this function.
3
1, 1
clockwise
Nozzle controls: There is no manual control to adjust the ___________ (older models can be adjusted).
stream
(Older) Hydraulic system pressure gauge: This gauge indicates the hydraulic pressure availabe to operate the aerial. The system standby (____) pressure is ______ PSI (+/- ____ PSI). The maximum system pressure is _______ PSI.
bias, 350, 10, 3000
(Older) Water flow gauge display selector button: When pressed, it changes the water flow gauge display from ____________ to ________________.
gallons per minute (GPM), total gallons consumed.
Aerial controls from left to right:
Extend (top) retract (bottom)
Right (top) left (bottom)
Lower (top) raise (bottom)
Special Emergency Ladder Functions (4): only 3 included on this note card. Continuation on next notecard.
1. _______ switch
2. EMERGENCY _________________ switch
3. _________/__________ EMERGENCY POWER switch, the MANUAL OVERRIDE ___________________, and MANUAL OVERRIDE _________________
- OVERRIDE
- HYDRAULIC POWER
- AERIAL/STABILIZER, STABILIZER CONTROLS, AERIAL CONTROLS
Special Emergency Ladder Functions cont.
4. Electrical failure operations: using the MANUAL OVERRIDE _________________, and the MANUAL OVERRIDE _______________ ONLY.
- STABILIZER CONTROLS, AERIAL CONTROLS
The override swtich is used to bypass ALL safety inerlocks (except for the __________________ button).
EMERGENCY STOP
The AERIAL/STABILIZER EMERGENCY POWER switch is used when the apparatus has a _____________________.
total catastrophic failure.