LTI Aerial ladder QS100 Flashcards
LTI-QS 100 ____ lb tip load
250lb
LTI-QS 100;
___ “ hand rails and ____” diameter k -braced rungs; spaced___ on center
15” rails and 1-1/2” diameter k braced rungs
14” on center
LTI-QS 100
Retracted length
31.8
The hudraulic pump is an axial piston, variable displacement type pump with a capacity of ___ gpm. Hydraulic oil is supplied from an all steel reservoir with a capacity of ____ gal.
20.gpm; 40 gal
The ladder elevation range from ____ to. ____
-4 to +75
An____and ____ attach the aerial to the chassis; thus providing 360 degree continuous rotation
Anti friction ball bearing and ring gear
An automatic ___ type brake is used to stop the rotation of the aerial
Disc type
Transmission fluid goes to the ___ when the power take off switch is turned on
PTO
Relief valves also protect components from damage due to excessive pressure build up. The variable displacement pump will create ____ psi and approximately ____ gpm
2800; 20gpm
The aerial main control valve opens to ,et hydraulic fluid to the aerial ______. The aerial main control valve opens when?x2
Control spool valves
When deadman is depressed or emergency blocking solenoid is actuated.
The aerial electrical system is a single wire; negative ground return type, utilizing the ____ as ground
Apparatus frame
The ___ consists of numerous sets of brushes and brush holder assemblies, collector rings and connectors.
Electrical swivel coupling
Will the epu electric switch work with the battery off?
Yes
Aerial system communication system;
Operating controls are located on the master control unit and provide the following -3
Listen volume, push to talk and talk volume
“____” introduces component stress, resulting in reduced load capacities. Position the ladder approximately ___ to ___ in. Above object
Reverse loading; 6 to 12in.
Always keep aerial ___ ft away from all wiring
10ft
Use extreme caution when operating in windy conditions. Careful considerations must be given to the following: -3
Apparatus supporting surface, aerial profile
And intensity of wind gusts
Do not operate with ladder elevated in wind conditions exceeding ___ mph
30
When may you initiate the extend or retract function with personnel on ladder.
Never
Ladder limitations
Full rated capacities are allowable on grades up to but not including;
Capacities reduced to one half between ___and _____
Below 6%/3.5 degrees = full
6%(3.5 degrees) to 14%(8 degre)
Aerial ladder load chart;
26 -46 degrees
65 -85 feet
+85’ to 26 degrees =250lb or WT
+85’ to 46 degrees=250 and WT
+85’ above 46 degrees=500&WT
65-85’ to 46 degrees=250&WT
65-85’ above 46 degrees=500
Below 65’ all angles=500&WT
Heel pin = ___ ft
9.5 ft
Aerial reach @ 0 degrees
94.5’
____ determines length of epu operation. Limit operation to retracting, bedding ladder and stowing outriggers
Battery condition
Fast idle switch
When actuated a preset engine speed of ___ - ___ is obtained
1500-1600
Outrigger override control
Outrigger control pressure gauge ____ - ___ psi
0 to 5000psi
Out rigger system relief valve relieves at ____ psi
2000
In the event of electrical failure , the outrigger controls and the aerial controls will became disabled because of the interlock system. The circuit selector requires a ___ turn to the ___ for engagement
1/4 turn to left or right
Out rigger not deployed light is a ____ light that illuminates when outrigger not fully deployed
Red
Aerial controls pedestal
Hydraulic system pressure gauge
____ to ___ psi
0 to 5000
In the lower position it is used t9 power the ladder into the cradle (___ psi)
800psi
Inclinometer
A floating ball -type angle indicator calibrated from ____ to ___ degrees
-20 to +80 degrees
Aerial extension indicators
Located along handrails of the main section are extension indicators marked off in ___ ft increments
5’
Extension gauge control
Small wire connected to the tip of the___
Inner mid
Even though aerial operation is permissible with t(e tiller trailer in line, optimum stability is attained with the trailer _____
Jackknifed away from the working site
Over the rear operation is defined as angles up to and including ____ degrees to either side of apparatus
45 degrees
Total outrigger spread (2000)
16’
Can jack control switches be operated simultaneously?
Yes but not recommended
Can the beam in and jack up be operated simultaneously
Yes after jack pressure is released and only in emergency response
When all switches are activates for a particular outrigger, its green light at the outrigger control box will light at ____ lbs
800
If at anytime the road transmission is shifted into gear while performing aerial operations , the ____ will automatically disengage the pto
Chelsea hot start
The proper method for deployment of the outriggers is to relieve the weight from ____
Tractors rear springs
Outrigger operation;
Place chock blocks where , if on hill place chock blocks where
In front and behind both front tires
Hill = on downhill side of front and tiller tires
Outrigger operation ;
Extend down low side jack until bubble in the aerial leveling indicator moves just past level ____ “
Take bulge out of tires but not off ground
Choose a hole that is minimum ___ below jack skirt. Fully insert locking pin and then back pin out ___ (if leveling is not required)
1/8” past level
Hole 1/4” min below jack skirt
Back out pin 1/2”
Rear tractor tires must remain in contact with the ground. If the apparatus cannot be leveled without raising the tires you must, _____________…Front (steering) axle tires must remain in contact with the ground.
Not level and operate within the reduced capacities
Lower or raise ladder until approximately ___ to ___ above objective
6 -12
Lowering ladder
Lower ladder to tiller cab roof, visual to alignment of red marks on main and third fly section and or extension gauge is at ____ ‘
30’
EPU
The EPU is a ___ volt dc electric motor and a ____ gpm at ____ psi pump
12 volt
1.5 gpm
2000psi
EPU
The epu is rated for a maximum of ___ minutes continuous operation
3 min
Epu
Can be used over a long period of time @ ___ % duty cycle which is approximately ___ seconds in every ___ min
7%21sec
5min
Aerial loading warning display alarm;
Activates when the maximum aerial load is exceeded by ___ -___ lbs
50 to 100
Outrigger system;
Double box ___ and ___.
Integrated ____ and manual pin locks as back up locks
Beams & jacks
Box beams and jacks
Interlock over ride switch
Both rotational directions are allowed but toward the short set side will be cut out after approximately ___ degrees rotation
4 degrees
Cab operation sequence x 10
- Apparatus running
- Emergency lights
- Parkin* Brakes
- Tiller man horn signal
- Check parking brake indicator light
- Transmission in neutral
- Aerial switch on
- PTO switch on
- Check pto engaged
- AC off ( voltage draw consideration)
09 lti anchor attachment weight rating
9000lbs
