Coming into oxygen
Put breathing apparatus on the floor
Loosen the shoulder straps and waist straps
Put breathing apparatus on the back
Fasten the shoulder and waist straps
Remove face mask from the bag
Loosen the straps on the face mask
Remove the T - piece connection cap from the T - piece connection and secure it in your pocket
Connect the face mask into the T - piece connection until you her the Locking sound
Don the face mask
Fasten the bottom straps on the face mask while holding the T - piece connection against your chin
Clack open the oxygen cylinder valve
Fasten the middle and top straps on the face mask
Open the oxygen cylinder valve fully and a half turn back
Shout pressure to captain or record pressure
To test the inhalation valve pitch the exhalation hose
When you sack and blow
There will be restrictions in breathing out but no restrictions in breathing in meaning the inhalation valve is okay
To test the exhalation valve
Pitch the inhalation hose
When you sack and blow
There will be restrictions in breathing in and no restrictions in breathing out
To test the sealing of the face mask
Pitch both the hoses the inhalation hose and the exhalation hose
When you sack and blow
There will be restrictions in both breathing in and breathing out meaning the exhalation valve is okay
Wait for 3 minutes to test the functionality of the breathing apparatus