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18 Cards in this Set
- Front
- Back
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What is perhaps the most critical aspect of preparing an aerial device for use.
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Apparatus stabilizaiton
page 226 |
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As long as the gravity circle does not extend outside the ___ _ ______, the apparatus should remain stable.
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base of stability
page 226 |
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_____ are required to prevent the apparatus from tipping as the aerial device is ectended away from the centerline of the chassis.
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Stabilizers
page 228 |
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What are some of the more common types of stabilizers? (3)
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1 Straight jacks that extend down from the chassis
2 A-frame, scissor, or X-style stablilzers that extend down and away from the chassis at an angle 3 Box stabilizers that extend straight away from the truck and have jacks that extend straight down to the ground. (H style) page 228 |
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The type of PTO activation switch used on stabilizers varies from manufacture to manufacturer and may be_________, ________,________ or a combination of these three.
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pneumatic, electric, hydraulic
page 229 |
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pneumatic operated PTO systems require anywhere from ___ to ____ psi to operate the PTO
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50 to 140 psi
page 229 |
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Before the actual deployment of the stabilizers, the driver operator should make the following quick observations to avoid potential problems: (2)
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1 Make sure that the PTO engagement light is lit berfor leaving the cab
2 Ensure that the wheels are properly chocked, if required. page 233 |
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The ____ type of stabilizer is the most common on newer apparatus and are basically two-part devices
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Box type
page 236 |
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______ type stabilizers can be deployed only in the fully extended position and cannot be deployed at all if obstructions are present.
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fulcrum type.
page 239 |
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There are two ways that the truck can be uneven: laterally or longitudinally. Of the two, which is the easiest to correct?
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lateral unevenness is the easiest to correct
page 240 |
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Correction of lateral unevenness can be achieved on grades of up to __ or __ percent.
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5 or 6 percent
page 240 |
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A 5% grade means that there is a rise in terrain height of 5 feet for every run of ___ feet.
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100 feet
page 240 |
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Most manufacturers of aerial devices recommend that the stabilizers on the _____ side of the vehicle be lowered first when on uneven terrian.
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uphill side first.
page 240 |
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When on uneven terrian and the apparatus is stabilized, it is preferable that the aerial device be operated over the ____ side of the apparatus.
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uphill side of the apparatus.
page 240 |
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When setting up on a longitudinal grade, the aerial be operated either ______ _______ __ _______ _ ______ of th apparatus, depending on weather the apparatus stopped short of the objective or past it.
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directly over the front or rear of the apparatus.
page 241 |
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Most aerial devices have restricted loads when operating on grades, some as much as ______ the normal load
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one half the normal load
page 242 |
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_______ stabilizers consist of an extension arm that has a sqrew jack attached to the end of the arm. The primary difference is that the extension arm must be swung into position by hand.
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Manual Stabilizers
page 244 |
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True / False
On manual stabilizers, if the stabilizers lifts off the pad during aerial operations, adjust it untill it makes contact with the ground again. |
False
If the stabilizer lifts off the pad during aerial operations, DO NOT ADJUST. This is normal load shifting. page 245 |
