-
the APU SERVICE DATA on the MCDU.
2. Component Location
__________________
(Ref. Fig. 001)
-------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA | | | | DOOR | REF. -------------------------------------------------------------------------------SWITCH - OIL LEVEL 316 316AR 49-93-16
3. System Description
__________________
A. Oil Indication System The primary component of the oil indicating system is the oil level switch. It is installed next to the fill port. A float-mounted magnet operates the switch to supply a discrete signal to the ECB. The sensor transmits the low oil-quantity signal to the ECB, if the oil quantity is at or below the set minimum of oil level.
4. Interface
_________
The Oil Indicating system has interface with:
-
the APU Control and Monitoring System (Ref. 49-61-00),
-
the Storage and Distribution System (Ref. 49-91-00).
R EFF : 001-049, 101-105, 107-107, 151-199, 49-93-00Page 1 201-210, Config-2 Aug 01/05
CES
Oil Indicating - Component Location
Figure 001
CES 5. Operation/Control and Indication
________________________________ (Ref. Fig. 002, 003) The oil level switch is energized from the ECB. When the ECB receives the low oil level signal it transfers the signal to the EIS. The APU system page of the lower ECAM display unit shows the advisory 'LOW OIL LEVEL'. When you enter the CFDS, the MCDU shows on the APU SERVICE DATA page the status of the oil level. The following schedule shows the amount of oil in the gearbox at the condition of the APU:
FULL ............. 6.26 l (1.65 USgal)
ADD ............. 4.60 l (1.22 USgal)
Low Oil Level (LOL) ............. 4.60 l (1.22 USgal)*
Low Oil Pressure (LOP) ............. 2.92 l (0.77 USgal)* * These values are determined for A/C ground condition. The values can vary in relation of the different operating attitudes of the A/C in flight.
R EFF : 001-049, 101-105, 107-107, 151-199, 49-93-00Page 3 201-210, Config-2 Aug 01/05
CES
Oil Indicating - Indications
Figure 002
CES
Oil Indicating - Oil Sight Glass
Figure 003
CES OIL INDICATING - DESCRIPTION AND OPERATION
__________________________________________
1. General
_______ The oil indicating system shows you if the oil quantity in the integral oil reservoir in the accessory drive gearbox is sufficient or if an oil servicing is necessary. The ECB 59KD monitors the oil quantity through the low oil level sensor in the static condition (when the APU does not operate). The set minimum agrees with the ADD mark on the oil sight glass on the gravity oil fill-port. When the ECB 59KD receives a low-oil quantity signal from the low oil level switch, it transmits the signal to:
-
the Electronic Instrument System (EIS) (Ref. 31-60-00),
-
the Central Fault Display System (CFDS) (Ref. 31-32-00).
You can read the oil quantity information on the EIS and the Multipurpose
Control & Display Units (MCDUs) in the cockpit on:
-
the APU page on the lower ECAM display unit,
-
the APU DATA/OIL page on the MCDU.
2. Component Location
__________________
(Ref. Fig. 001)
-------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA | | | | DOOR | REF. -------------------------------------------------------------------------------SENSOR - OIL LEVEL 316 316AR 49-93-17
3. System Description
__________________
(Ref. Fig. 001, 002)
A. Oil Indication System
(1) The primary component of the oil indicating system is the oil level sensor. It is installed at the right side of the accessory drive gearbox. The sensor stays up into the oil in the integral oil reservoir and monitors the oil level in static condition (the APU does not operate). The sensor transmits the low oil-quantity signal to the ECB 59KD, if the oil quantity is at or below the set minimum of oil level. The set minimum agrees with the ADD mark on the oil sight glass on the gravity oil fill-port.
4. Interface
_________
The Oil Indicating system has interface with:
-
the APU Control and Monitoring System (Ref. 49-61-00),
-
the Storage and Distribution System (Ref. 49-91-00).
Oil Quantity - Component Location
Figure 001 (SHEET 1)
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