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no abnormal indications.
The plane has now taken off, let’s retract the landing gear.
HYDRAULIC MENU Normal operation 45/46
HYDRAULIC MENU Normal operation 46/46
Observe a slight decrease of the GREEN Hydraulic fluid
level due to the retraction of the landing gear.
MMoodduullee ccoommpplleetteedd
NEXT
HYDRAULIC MENU Normal operation 47/46
LLIISSTTOOFFSSUUBBJJEECCTTSS
EXIT
AUDIO GLOSSARY FCOM
RETURN
CCAARRGGOODDOOOORROOPPEENNIINNGG
EENNGGIINNEE22SSTTAARRTT
GGEEAARRRREETTRRAACCTTIIOONN
EENNGGIINNEE11SSTTAARRTT
PPRREEFFLLIIGGHHTTCCHHEECCKKSS
HYDRAULIC MENU System presentation 1/19
HYDRAULIC MENU
System presentation 2/19
The A320 family has three independent
hydraulic systems :
- GREEN,
-- YELLLLOW,,
- and BLUE.
Now, let’s look at the systems in more detail.
HYDRAULIC MENU
System presentation 3/19
The GREEN and YELLOW hydraulic systems are each
pressurized by an engine driven pump.
HYDRAULIC MENU
System presentation 4/19
TThhee YELLLLOWhhyyddrraauulliicc ssyysstteemccaann aallssoo bbee pprreessssuurriizzeedd bbyy aann eelleeccttrriicc ppuumpp..
HYDRAULIC MENU
System presentation 5/19
A Power Transfer Unit (PTU) enables the GREEN system to be
pressurized by the YELLOW system and vice versa.
HYDRAULIC MENU
System presentation 6/19
Fire shut off valves are located between the reservoirs and the engine
driven pumps.
HYDRAULIC MENU
System presentation 7/19
TThhee BLLUE hhyyddrraauulliicc ssyysstteemiiss pprreessssuurriizzeedd bbyy aann eelleeccttrriicc ppuumpp..
HYDRAULIC MENU
System presentation 8/19
In an emergency the BLUE system can be pressurized by the Ram Air
Turbine (RAT).
HYDRAULIC MENU
System presentation 9/19
YYEELLLLOOWWUUSSEERRSS
Eaacchh hhyyddrraauulliicc ssyysstteemddeelliivveerrss aa ccoonnssttaanntt pprreessssuurree ttoo tthhee uusseerrss..
GGRREEEENNUUSSEERRSS BBLLUUEEUUSSEERRSS
3000 PSI 3000 PSI 3000
HYDRAULIC MENU System presentation 10/19
GGRREEEENNUUSSEERRSS BBLLUUEEUUSSEERRSS YYEELLLLOOWWUUSSEERRSS
RAT
ELEC
ELEC
1 2
3000 PSI 3000 PSI 3000
Allll tthhee ccoomppoonneennttss wee hhaavvee ttaallkkeedd aabboouutt aarree ddiissppllaayyeedd oonn tthhee ECAMHYD ppaaggee..
HYDRAULIC MENU System presentation 11/19
Let’s briefly review the
basic system using the
ECAM HYDRAULIC page.
. The reservoirs,
. The fire shut-off valves,
HYDRAULIC MENU System presentation 12/19
. The pumps,
. The RAT,
HYDRAULIC MENU System presentation 13/19
. The PTU,
. The pressure indications.
HYDRAULIC MENU
System presentation 14/19
The controls for the components that we have introduced are located
on the overhead hydraulic control panel.
Let’s now go to the ECAM HYD page together with the hydraulic
control panel.
HYDRAULIC MENU
System presentation 15/19
The hydraulic system is fully automatic. However each pump and the PTU have an
associated pushbutton switch for abnormal operation.
HYDRAULIC MENU
System presentation 16/19
Each hydraulic engine pump is controlled by a pb sw
located on the overhead panel.
HYDRAULIC MENU
System presentation 17/19
Eaacchh hhyyddrraauulliicc eelleeccttrriiccaall ppuumpp iiss ccoonnttrroolllleedd bbyy aa ppbb ssw..
HYDRAULIC MENU
System presentation 18/19
TThhee PTTU iiss ccoonnttrroolllleedd bbyy aa ppbb ssw..
HYDRAULIC MENU System presentation 19/19
The RAT may be extended manually by
using this guarded pb sw.
MMoodduullee ccoommpplleetteedd
NEXT
HYDRAULIC MENU System presentation 20/19
LLIISSTTOOFFSSUUBBJJEECCTTSS
EXIT
AUDIO GLOSSARY FCOM
RETURN
YYEELLLLOOWWAANNDDGGRREEEENNCCIIRRCCUUIITTSS
BBLLUUEECCIIRRCCUUIITT
CCOONNTTRROOLLSS
EECCAAMMPPAAGGEE
HYDRAULIC MENU Summary 1/24
HYDRAULIC MENU
Summary 2/24
PTU switch
ENG 1 PUMP switch YELLOW ELEC PUMP switch
Seelleecctt aannyy yyeelllloow bbuuttttoonn ffoorr rreevviieew..
HYDRAULIC MENU
Summary 3/24
Controls the PTU.
PTU armed
Hydraulic power transfer disabled
GREEN or YELLOW reservoir overheat
GREEN or YELLOW reservoir low air pressure
GREEN or YELLOW reservoir low level
PTU switch
ENG 1 PUMP switch YELLOW ELEC PUMP switch
Seelleecctt aannyy yyeelllloow bbuuttttoonn ffoorr rreevviieew..
HYDRAULIC MENU
Summary 4/24
Controls the Engine 1 pump. (Green)
Pump pressurizes the system
Pump is depressurized
Reservoir low level
Reservoir low air pressure
　
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