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SSSStudy > 2009 LTI > Flashcards

2009 LTI Flashcards

1
Q 
Height (max.): Top of Tiller Cab
Height: Top of Cab Roof 
Height: Cab Full Tilt Position 
Length
Width (including mirrors)
A 
H Tiller: 11'3"
H Cab: 10'0"
H Tilt: 15'6"
L: 54'6"
W: 9'5"
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2
Q

GVWR (Gross Vehicle Weight Rating)
GAWR (Gross Axle Weight Rating) Front Axle
GAWR (Gross Axle Weight Rating) Rear Axle
GAWR (Gross Axle Weight Rating) Tiller Axle

A

65,500 lbs
20,000 lbs (Rockwell)
24,000 lbs (Rockwell)
21,500 lbs (Rockwell)

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3
Q

Ground Jack Spread - Fully Deployed

A

14 ft

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4
Q

Apparatus Normal System Voltage Operating Range

A

12.9 – 14.4 Volts

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5
Q

Engine Oil Pressure Normal Operating Range

A

10 psi (min) @ idle 30 - 45 psi @ rated rpm

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6
Q

Engine Coolant Temperature Normal Operating Range

A

190º to 208º F Max. 219º F

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7
Q

Engine Fan Clutch Engagement

A

208º F and at idle with parking break set

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8
Q

Transmission Fluid Temperature Normal Operating Range

A

160º to 200º F

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9
Q

Air Brake System Normal Operating Range

A

90 psi to 120 psi

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10
Q

Fuel Tank Capacity

A

65 Gallons

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11
Q

Fast Idle

A

1500 – 1600 RPM

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12
Q

Emergency Power Unit (EPU) Pump

A

1.5 GPM @ 2000 PSI

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13
Q

Onan: Engine Oil Pressure

A

28 – 64 PSI @ normal operating temp.

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14
Q

Onan: Engine Coolant Temperature

A

160º to 195º F

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15
Q

Onan: Output

A

7.5 kW

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16
Q

Onan: DC Voltmeter

A

12.5 – 15 Volts

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17
Q

Oil Reservoir Capacity

A

40 Gallons

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18
Q

Hydraulic Pump Capacity

A

20 GPM

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19
Q

Maximum System Pressure

A

2800 PSI

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20
Q

Outrigger Relief Valve Setting

A

2000 PSI

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21
Q

Hoist Maximum Pressure

A

2800 PSI

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22
Q

Rotate Maximum Pressure

A

1500 PSI

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23
Q

Extend/Retract Maximum Pressure

A

2000 PSI

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24
Q

Lowering into Cradle Maximum Pressure

A

800 PSI

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25
Q

Ground Jack Deployed Light Activation Pressure

A

800 PSI

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26
Q 
Aerial Ladder: Elevation 
Aerial Ladder: Retracted
Aerial Ladder: Extended
Aerial Ladder: Elevated Height 
Aerial Ladder: Sections
A

-4º to +75º
31.8 Feet
94 Feet
100 Feet
4

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27
Q

Engine:
Transmission:
Brakes

A
  • Caterpillar 525 BHP, 12.5 Liter, C-13
  • Allison HD 4560P 5-Speed Automatic World Transmission
  • Meritor EX 225, Disc Plus, Air Disc Brakes,
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28
Q

Power to the Kenwood and 800 radios are
also cut when the battery master switch is turned to the OFF position. The one
exception to this is the _____. The _____ will continue to draw electrical current (approximately _______)

A

MDT

7 to 8 amps

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29
Q

High Idle Engine RPM:

A

Engine rpm approx 1000 rpm

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30
Q

Approaching Jackknife Indicator

A

65º and an 80º angle

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31
Q

Low Oil Pressure/High Water Temp:
Illuminates when oil pressure falls below ___
PSI or water temperature rises above ___.

A

12 PSI

230º F

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32
Q

Brake System: Illuminates when air pressure

falls below ____PSI.

A

65-75

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33
Q

Low Fuel: Illuminates when approximately

____ tank of fuel remains.

A

1/8

34
Q

Primary Air Reservoir Gauge

Indicates the air pressure in the _____brake circuit.

A

Rear axle

35
Q

Secondary Air Reservoir Gauge

Indicates the air pressure in the _____brake circuit.

A

Front

36
Q

Air Cleaner Restriction Gauge:
Maximum restriction
at full-load and governed rpm is ____ in. H20 and maximum restriction at no-load and
governed rpm is _____ in. H20.

A

Load: 25 in.

No Load: 15 in.

37
Q

Engine:
Engine Size:
Horsepower:
RPM Range

A

Caterpillar, C-13, is a six-cylinder
763 Cubic in.
525 Hp @1800 rpm
1200 to 2100 rpm

38
Q

When all segments of the digital display are illuminated for more than ____, the ECU did not complete initialization. When the digital
display is blank, there is _____ to the selector

A

12 seconds

no power

39
Q

When the display shows a “cat eye”

symbol, a selector-related ___ has been logged.

A

fault code

40
Q

If the engine fails to start within ____, release the starter button and allow the
starting motor to cool for approximately _____ before trying again. If the engine
fails to start after _____

A

15 seconds
15 seconds
4 attempts

41
Q

parts are getting lubrication is when the oil pressure gauge registers pressure (at least__ psi) at idle speed. If there is no oil
pressure indicated within _____ seconds, stop the engine
and check the lubricating system

A

10 psi

10 to 15 seconds

42
Q

Try not to shut down the engine unless

coolant temperature is ____ or less

A

195º F

43
Q

The front axle and the rear axle brake circuits are each supplied air by separate air reservoirs.
safe operation is between ______

A

90 and 120 psi

44
Q

In the event air brake system pressure drops below approximately ___ a warning buzzer and light will come on

A

65 psi

45
Q

If air pressure is reduced to

approximately ____ in both systems, the spring brake valve will automatically apply.

A

40 psi

46
Q

The engine brake reacts quickly; it will activate or deactivate in less than ____.

A

1/4 of a second

47
Q

The three-position selector switch allows the operator to choose the desired braking level:
Low – Activates ____ for medium engine retarding.
Medium – Activates ___ for moderate engine retarding.
High – Activates _____ for maximum engine retarding.

A

Low: 2
Medium: 4
High: 6

48
Q

An alarm sounds if a low voltage condition (below____)

  • Shedding begins if low voltage condition continues for ___
A

11.9 volts

1 Minute

49
Q

A shed system (load) will not be recognized for 5__minutes or until the unshed voltage
setting is maintained for __ minute. The fast idle system will be maintained for a
minimum of __ minute and until a voltage reading of ___ is achieved, even if any
system shedding did not occur.

A

5’
1’
10’
13.0 volts

50
Q

Onan Mobile Genset, model 75HDKAL-1E
voltage
Amps
RPM

A

120/240
31
1800

51
Q

Cord Reel
Reel contains ___ of electrical cord with __
__-amp receptacles.

A

200’
2
20amp

52
Q

Electrical panel has __ circuit breakers

provide ___ volt

A

12

110 volt

53
Q

When stopping the Genset, let it cool down by running at no-load for____ minutes.

A

3 to 5 minutes

54
Q

The LTI QS-100 aerial ladder is a 4 section, all rectangular tubular steel, welded
construction, ___pond tip load,__ handrails and 1-1/2” diameter K-braced rungs, spaced ___ on center

A

rectangular tubular steel,
250 lb tip
15” handrails
14” OC

55
Q

Three other spool valves are the aerial
control spool valves; which operate hoisting cylinders, rotation motor, and extension
cylinders.

A
56
Q

Personnel on the ladder should maintain a distance of ___ apart.

A

10’

57
Q

EPU Switch
Activates the emergency power unit (electric motor) when a _____ within
the main system occurs.

A

hydraulic failure

58
Q

Outrigger and Lockout Cylinder Override Control Buttons:
The control buttons are momentary switches, which will shift necessary flow of oil to
the appropriate outrigger jack in the event of an _____.

A

electrical failure

59
Q 
Green indicates full operating capacity, yellow indicates 50 percent
operating capacity (\_\_\_\_\_) and red indicates aerial operation prohibited.
A

3.5 to 8.0 degrees

60
Q

The attachment point has a rating of____.

A

9,000 lbs

61
Q

The
ladder can be moved______ degrees past the tiller cab toward the short set side and __
degrees past the cab toward the short set side

A

8 to 10 degrees

2 degrees

62
Q

Capstan Receiver
Location where the capstan is attached.
The capstan has the same _____. rating
as the tip load of the aerial ladder.

A

250 lbs

63
Q

The fast idle is set between _____.

A

1500 to 1600 rpm

64
Q

Pressure to hoist should not exceed___psi. Pressure to rotate should not exceed ____ psi. Pressure to extend/retract should not exceed ____ psi.

A

Hoist 2800
Rotate 1500
Extend/Retract 2000

65
Q

A floating ball-type angle indicator calibrated from ____.

A

-20º to + 80º

66
Q

Choose a hole that is a minimum ___ below jack skirt. Fully insert manual locking pin and then back pin out ___

A

1/4”

1/2”

67
Q

Street grades from 6% to 14% (3.5º to 8.0º on inclinometer) reduce
capacities of the aerial ladder by 50%. Street grades in excess of
14% (>8.0º on inclinometer) prohibit the operation of the aerial.

A
68
Q

The EPU is a 12-volt dc electric motor and a ___ gpm at ___-psi pump.

A

1.5 gpm @ 2000 psi

69
Q

The EPU is rated for a maximum of ___(approx.) continuous operation

A

7’ minutes

70
Q

The EPU can be used over a long period of time at a 23% duty cycle, which is
approximately 2.3 minutes in every 10 minutes

A

(2.3 minutes on and 7.7 minutes off).

71
Q

The alternator is a Leece-Neville LN 4962PA ____ pad mount and is of the selfenergizing type.

A

320 amp

72
Q

Weekly Engine Maintenance:
Run engine for ____ at high idle (1000
rpm) with air conditioning at maximum cool and
all electrical accessories activated.

A

10 minutes

73
Q 
Tire Pressures (Log Books)
Front, Rear, Tiller
A

Front: 100 psi
Rear: 95 psi
Tiller: 115 psi

74
Q

When lubricating the fifth wheel, inject grease with the tractor___, ___ to the left and
___ to the right of the trailer

A

Inline
60º
60º

75
Q

Motor Oil: 15W-40
Including Filter
Not Including Filter

A

42 Quarts

76
Q

C-13 Engine develops its highest torque at ____

A

1650 ft lbs

77
Q

The Caterpillar C-13 engine is equipped with an _____ fuel injection system.

A

electronically controlled

78
Q

The C-13 engine has no ____ governor.

A

mechanical

79
Q

The engine brake reacts quickly; it will activate or deactivate in less than _____.

A

1/4 of a second

80
Q

2006 LTI

General Specifications for Shop # 60691 – 60704

A

60691 – 60704

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