Oxygen (HC-130H)

Question 0

Oxygen system components

Answer 0

1. 7 high pressure storage cylinders grouped into two banks
2. 1st bank is a two bottle system for pilot and flight engineer
3. 2nd bank is a 5 bottle system for copilot, navigator, radiomen, cabin crew
4. 4 recharging ports for portable units
5. lower gauge is for 2 cylinder bank
6. upper gauge is for 5 cylinder bank

Question 1

Oxygen pressures and precentages

Answer 1

1. 1800 psi reduced to operating pressure of 300-475psi
2. 5 hour supply is normally provided for each crew member
3. pilot and flight engineer have aprox. 20% greater duration than crew.

Question 2

Oxygen instructions and componenets

Answer 2

1. system will be serviced at 450 psi
2. left cutoff switch for pilot and flight engineer
3. right cutoff switch for copilot, flight nav, and crew
4. 500-600 psi relief valve blow out and 20 psi green disk
5. ruby red tape pilot, copilot and flight engineer hoses

Question 3

If the portable oxygen bottle is depleted, determine if the bottle has been depleted for over 2 hours or unknown. If the bottle has been depleted for over 2 hours or unknown, the portable bottle must be what?

Answer 3

Inspected and purged IAW TO 15X-1-1

CGTO 1C-130J-2-12JG-10-2 (Oxygen servicing section)
P. 1

Question 4

If portable oxygen bottle pressure reads below 25 psi and has been out of use for at least 2 hours, the bottle must be what

Answer 4

Purged by filling and emptying the bottle 3 times, once in each of the settings-32m, 42m, & emer.

CGTO 1C-130J-2-12JG-10-2 p.1

Question 5

What do you reference for servicing oxygen on C-130

Answer 5

MPC 121401.0

CGTO 1C-130J-2-12JG-10-2 p.1

Question 6

What threads on on pipe elbows do you not apply anti-seize tape

Answer 6

Do not wrap anti-seize tape on first 2 threads of fitting nearest opening.

CGTO 1C-130J-2-35JG-00-1 p.3 of Oxygen systems removals and Installations Section

Also referenced in other manuals, TOs and MPCs