Title: Describing Different Parts of SCBA
Headings: Describing Different Parts of SCBA
Describing Different Parts of SCBA
Air Cylinders
Protective Hood
Portable Transporting Bag
Portable Hauling Bag
The arrangement of the whole apparatus is as follows:
Approximate consumption by a person is as follows:
Assembly Instructions
Donning Instructions
Pre Use Checks
During Use
After Use
Routine check and maintenance
Alarm Testing
About Shilavadra Bhattacharjee

Content: Line up the cylinder valve with reducer valve hand wheel and turn handwheel counterclockwise until hand tight. Hook cylinder strap over cylinder and pull down the operating lever onto the tension spring to be clipped to place. To attach demand valve assembly to facemask- line up assembly with the red by pass valve knob upwards with the centreline of facemask and turn assembly clockwise through 90 degrees until it clicks into place
Donning Instructions
Hang facemask from neck by the neck strap
Lift cylinder with the cylinder valve on top and backplate facing the wearer and raise it over the head and straighten hands to slide the shoulder straps on the shoulder. Fasten the waist belt and tighten shoulder straps
Slide arms through shoulder straps and place back plate on the back with cylinder valve down, then tighten shoulder straps and fasten waist belt
Open cylinder valve by turning handwheel slowly counterclockwise
Check pressure on the gauge
Open all facemask straps fully. Hold breath and place chin into the facemask and pull head harness and straps over the head
Ensure mask is correctly placed on face with the nose guard on the nose and then tighten upper straps first and then lower ones. Both side straps must be tightened together
Start to breathe deep which will actuate positive pressure and then breathe slowly
Pre Use Checks
Close the cylinder valve
Breathe normally to vent system
During venting observe gauge- whistle alarm should sound at preset pressure of 55 bar +/- 5 bar
When gauge indicates zero, hold breath. Face piece should hold onto face indicating positive seal
Open cylinder valve slowly, but fully to pressurize system
Inhale and hold breath. There should be no audible leak
Continue breathing. Expired air should easily flow out of exhalation valve
Press center of rubber cover on demand valve checking supplementary supply
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During Use
Cylinder pressure to not be less than 80% full
Keep checking the gauge reading
If and when the whistle sounds, go to a safe area with plenty air
Do not remove the apparatus till in safe area
After Use
Press reset lever and switch OFF
Press and hold down button and remove demand valve
Insert finger behind neck strap and press buckles forward.