Pilot's Operating Handbook
Section 8
Handling, servicing and maintenance
Edition 0 - March 05, 2019
Rev. 0
Page 8.7.9
Replenishment procedure
▲
WARNING
▲
Make sure that the airplane is fitted with a grounding cable and is
properly grounded.
The oxygen cart must be electrically bonded to the airplane.
Do not operate the airplane electrical switches or
connect/disconnect ground power during oxygen system
replenishment.
Do not operate the oxygen system during refueling/defueling or
perform any other servicing procedure that could cause ignition.
Introduction of petroleum based substances such as grease or oil
to oxygen creates a serious fire hazard. Use no oil or grease with
the oxygen replenishment equipment.
Always open shut-off valve slowly to avoid generating heat and
replenish the system slowly at a rate not exceeding 200 PSIG
(13.7 bars) per minute.
▲
▲
CAUTION
▲
Replenishment of the oxygen system should only be carried out by
qualified personnel.
▲
●
NOTE
●
The cylinder full charge is assured for a pressure of 1850 PSIG (127 bars) at a
temperature of 70
°
F (21
°
C). If the cylinder temperature differs from 70
°
F
(21
°
C), refer to figure 8.7.4 which lists the required pressures according to the
cylinder temperature.
●
1 -
Open the oxygen service door on the R.H. rear karman.
2 -
Measure the oxygen cylinder temperature.
3 -
Make sure the thermometer indication is constant. Note the indication.
4 -
Refer to the temperature/pressure chart for the correct oxygen cylinder
pressure.
PIM - DO NOT USE FOR FLIGHT OPERATIONS