LTI Ladders Flashcards
What are the LTI ladders constructed of?
Rectangular tubular steel
How high are the handrails of the LTI ladders?
15”
How far apart are the rungs on the LTI ladders?
14”
What is the retracted length of the LTI ladders?
31’8”
What is the elevation range of the LTI ladders?
-4 to 75 degrees
What is the capacity of the hydraulic pump on the LTI ladders?
20 gpm @2800 psi
How far apart shall personnel be on LTI ladders?
Maintain 10 feet separation
When extended over an objective, the LTI ladder should be how far over the objective?
6-12”
LTI ladders should not be operated in winds over how many mph?
30 mph
The fast idle switch on LTI ladders will increase engine speed to how many rpm?
1500-1600 rpm
Full capability of LTI ladders is up to what percent grade?
6%
3.5 degrees
At what degree can the LTI ladder be used at 50% capabilities?
6-14%
3.5 - 8 degrees
The outrigger pressure gauge on LTI ladders reads what range?
0-5000 psi
On the LTI ladder, what does the outrigger system relieve at?
2000 psi
What are the hoist, rotate, and extend pressures of the LTI ladders?
Hoist- 2800
Rotate- 1500
Extend- 2000 psi
When bedding the LTI ladders, what pressure should be applied?
800 pounds
On the LTI ladder, what does the inclinometer range from?
-20 degrees to 80 degrees
On the LTI ladder, on the main section there is red tape indicators every how many feet of ladder extension?
5 feet
On the LTI ladders, the ladder is most stable when thrown how?
Over the tiller cab up to 45 degrees to either side
What happens when the transmission of the truck is shifted into gear while operating the LTI ladder?
The Chelsea hot start will automatically disengage the PTO
When placing the pins in the LTI ladder outriggers, how far below the outrigger skirt should the pin be inserted? The pin should be inserted and backed out how far?
Whole should be 1/4” below the skirt
Back pin out 1/2”
How many volts is the motor of the EPU?
12 volt D.C. Motor
What is the EPU pump rated to?
1.56 gpm @2000 psi
How long can the EPU be run on apparatus from 1995-2003?
3 minutes continuous then 7% duty cycle.
21 seconds on then 5 minutes off
On the trucks equipped with lockout cylinders, how many cylinders are there?
4
What is the capacity of the aerial hydraulic fluid tank?
40 gallons
What is the diameter of the rungs on the LTI ladder?
1 1/2”
