Ladder Manual Flashcards
(63 cards)
Aerial reach
Will extend to 107’ at 75 degree angle
100’ horizontally
Aerial will go 77 degrees above horizontal
The Ariel has the capability of going () below horizontal, and () below horizontal when manipulating stabilizers.
5 degrees and 15 degrees
Coupled with the nozzles ability to be pointed upward at a () angle allows for a blitz attack
30 degree
System that will prevent the aerial from being rotated to the side where the stabilizer is not fully deployed or when short jacked
Rotation interlock system
To restrict ladder movement when system hydraulic pressure is not present
Holding valve cartridges
Ladder has a safety factor of
2:1
A “stabilizers not stowed stowed” indicator light is located
In the drivers compartment
As a safety feature the jack cylinders are equipped with
Integral holding valves that will hold the cylinder in place should a hydraulic line become severed
Hydraulic system pressure gauge
System standby (bias) pressure is 350 PSI.
(+/-10 PSI)
Max system pressure is 3000
NFPA order for aerial controls
Extend Right Lower
Retract Left Raise
Four special emergency functions
Override switch
Emergency hydraulic power
Aerial/stabilizer emergency power
Electrical failure operations
Override switch
Is used to bypass all safety interlocks
Except emergency stop button
Manual override stabilizer controls
Are only found on the engineers side of the ladder behind a fold down door
Aerial/stabilizer emergency hydraulic power switch
Is used when the apparatus has a total catastrophic failure.
Will activate the electric backup pump when engaged
Manual override aerial controls
Located on the turn table inside the aerial control tower. Behind a hatch that flips down.
An alarm will sound when the hatch is open and turned off when hatch is closed.
When using the manual override aerial controls, the collision avoidance system is deactivated.
Collision avoidance system
Newer tiller ladders
Will stop aerial movement if you attempt to move the aerial into a position where it would contact other parts of the apparatus
Lubricating the exterior of the ladder pipe should be done
Using a light coat of automatic transmission fluid
Communication systems
3 separate communication systems
Intercom system at the tip and turntable console, push to talk switch to talk to the tip
Headphones
1 Beep = stop
2 beeps = go
3 beeps = backup
Listed reasons why an aerial may need to be raised
Ladder pipe operations Elevated rescue Elevated ventilation Egress for interior crews Gain access to upper levels Used as an exterior standpipe Special rescue situations Overhead scene lighting
Jack placement considerations
Avoid manhole covers and storm drains
Concrete is better than asphalt
Undisturbed earth (not sand)
Avoid underground parking facilities
Power line considerations
Aerial should maintain at least 20’ clearance from power lines and 50’ clearance from high voltage power lines
High voltage power lines can arc to the aerial
Do NOT run the aerial between wires
At full ladder height expect to flow
180 PSI
If unable to level apparatus within the green range, you may setup within the yellow range.
The device can be operated at 50% capacity
The aerial is only rated for
750 lbs
