Paratech Rescue Support Systems(Working Air Cart)

Question 1

Before using the air cart do 9 things

Answer 1

1)wear proper PPEs
2)inspect nipples/couplings for damage
3)ensure nipples/couplings are free of dirt/dust/grease/grime
4)ensure all bleed valves are closed
5)ensure all control knobs are closed
6)ensure 3-way diverter valve is “OFF”
7)ensure shutoff valve is closed
8)ensure all CGA-347s are tight
9)ensure all hoses are fully inserted and
locking rings are closed

Question 2

when changing a cylinder, always ensure

that ____has been released before ____

Answer 2

the pressure
unscrewing the CGA fitting (nut) from the
tank

Question 3

when finished using the air cart do these

2 things first

Answer 3

1) close cylinders

2) bleed off all pressure in the system

Question 4

working air cart provides _____ air for tools

and equipment. it does not provide _____.

Answer 4

working

breathing air

Question 5

the air cart is designed to _____

Answer 5

provide continuously regulated working air

to a variety of components

Question 6

components that can be used with the

air cart include 3 types

Answer 6

air bag systems
rescue support/strut systems
portable pneumatic hand tools

Question 7

the high pressure manifold has a _____

that tells you the _____.

Answer 7

high pressure guage
cylinder air pressure or the alternate
working air supply pressure

Question 8

a shut-off valve is provided between
the _____ and a _____ to permit access
to _____.

Answer 8

high pressure manifold
CGA-347 adapter
alternate sources of working air

Question 9

4 alternate sources of working air

Answer 9

external cascade system
mobile air compressor
air truck
in-plant or in-facility source

Question 10

the CGA-347 adapter allows 3 things

Answer 10

1)for filling of the air cylinders on the cart
2)for providing an alternate air source
3)for providing up to a 5500psi outlet
connection

Question 11

3-way diverter valve when “ON” is getting

air from _____.

Answer 11

one of the cylinders

Question 12

3-way diverter when “OFF” is getting air

Answer 12

through the CGA-347 adapter and
shut-off valve from a remote high pressure
source

Question 13

the 3-way diverter allows for either bottle to be ____

for _____

Answer 13

selected

Question 14

the 3-way diverter does not allow both

bottles to ______

Answer 14

simultaneously provide air

Question 15

bleed valves are located between the

_____ and the _____ connected to the ____

Answer 15

3-way diverter valve
high pressure hose assemblies
air cylinders

Question 16

bleed valves release all pressure in the
_____ between the _____ and the ______
or _____.

Answer 16

system
air cylinders
couplings (female for 300psi side)
nipples (male for 150psi side)

Question 17

low-pressure whistle is just below the
_____ and activates when pressure within
the air source is between _____.

Answer 17

high pressure manifold

400-500psi

Question 18

the working air cart has ____ low pressure
regulators. one is for ____ and has the
____ and the other is for _____ and has the
_____.

Answer 18

2
up to 150psi max
nipples
up to 300psi max
couplings

Question 19

each low pressure regulator has it’s
own ____ for ensuring it’s respective low
pressures.

Answer 19

adjusting knob

Question 20

each low pressure regulator is between

the _____ and their ____.

Answer 20

high pressure manifold

respective low pressure manifold

Question 21

each nipple and coupling have their own

_____

Answer 21

shutoff control knob

Question 22

each low pressure manifold has a ____ to

show the outgoing pressure to a component

Answer 22

pressure gauge

Question 23

maximum inlet pressure is _____ at the ____

Answer 23

5500psi

CGA-347 adapter

Question 24

the air cart has an adjustable handle for
____ of movement. it also allows the cart
to be operated safely 3 ways

Answer 24

ease
vertically
horizontally
at an angle

Question 25

the cart weight with 2 empty cylinders | the cart weight with 2 full cylinders

Answer 25

110# | 122.2#

Question 26

rotate adjusting knobs on the low | pressure regulators _____ to close

Answer 26

counter-clockwise

Question 27

if charging an air cylinder via an external | source follow 16 steps

Answer 27

1)ensure all nipples/couplings are closed 2)ensure both low pressure regulators are closed 3)ensure shutoff valve is closed 4)ensure all bleed valves are closed 5)orient 3-way diverter valve towards cylinder to be filled 6)remove protective cap for CGA-347 7)connect external source to CGA-347 8)open air cylinder 9)open shutoff valve 10)open external source and fill cylinder 11)close air cylinder upon filling 12)close external source 13)open bleed valve 14)close shutoff valve 15)disconnect external source and cap CGA-347 adapter 16)orient 3-way diverter as necessary

Question 28

do not use external source that ____ the | capacity of the air cylinder

Answer 28

exceeds

Question 29

to open air cylinder valves turn ____

Answer 29

counter-clockwise

Question 30

to open low pressure regulators turn ____

Answer 30

clockwise

Question 31

the shutoff valve can be used in _____ directions. the air cylinders can be used to provide _____ thru the _____.

Answer 31

both high pressure air CGA-347 adapter

Question 32

control knob banks are on _____

Answer 32

each low pressure manifold

Question 33

control knobs align vertically for ____

Answer 33

closed

Question 34

control knobs align horizontally for ____

Answer 34

open

Question 35

5 gauges

Answer 35

2 air cylinder gauges 1 high pressure manifold gauge 2 low pressure manifold gauges

Question 36

when operating and will be using air supply | from the cylinders, open _____.

Answer 36

both air cylinders

Question 37

when initially orienting the 3-way diverter valve to an air cylinder, the _____ briefly

Answer 37

low pressure whistle will sound

Question 38

rotate low-pressure regulator knobs ____ | to increase pressure

Answer 38

clockwise

Question 39

rotate low-pressure regulator knobs ____ | to decrease pressure

Answer 39

counter-clockwise

Question 40

adjust finally in the _____ direction for the | low pressure regulators

Answer 40

increasing

Question 41

to switch to the other air cylinder, simply _____ to the full cylinder. since both tanks have already been _____, this switch enables _____ air supply

Answer 41

orient the 3-way diverter valve opened interruption-free

Question 42

``` to switch to the external source all you have to do is _____ and then _____ and then open ______. continuous ops can occur if the external source has been turned on and the shutoff valve opened prior to moving the 3-way diverter valve ```

Answer 42

orient the 3-way diverter facing forward open the shutoff valve the external air supply

Question 43

8 steps to shut down air cart

Answer 43

1) turn control knobs to closed position 2) close air cylinder valves/ext. air supply 3) close shutoff valve if necessary 4) orient 3-way diverter valve to "OFF" 5) disconnect hoses from nipples/couplings 6) open both bleed valves, bleed, close 7) replace air cylinders 8) inspect/maintain make ready

Question 44

5 inspection checks for the air cart

Answer 44

1)dust/dirt/grease/grime 2)loose hardware 3)cracked/deformed parts 4)during ops, check for air leaks 5)make sure low pressure gauge is steady at all times

Question 45

there is a _____ to assure that the max. low pressure are not exceeded. adjusting this screw will _____ pressure.

Answer 45

pressure relief adjustment screw | increase/decrease