(c) Install the speed sensor(s) (8060KM1), (8060KM2) (Ref. AMM TASK 49-71-13-400-002).
(d) Start the APU (Ref. AMM TASK 49-00-00-860-005) and operate it for 15 minutes.
(e) Do the APU shutdown procedure (Ref. AMM TASK 49-00-00-860-006).
(f) Remove the speed sensor(s) (8060KM1), (8060KM2) (Ref. AMM TASK 49-71-13-000-002).
(g) Inspect the speed sensor(s) under a source of white light for metal particles and if you find any metal particles on the speed sensor(s):
1 Replace the APU (front bearing failure) (Ref. AMM TASK 49-11-
_ 11-000-003) and (Ref. AMM TASK 49-11-11-400-003).
(2) If you find a large quantity of metal particles:
- replace the APU (front bearing failure) (Ref. AMM TASK 49-11-11-000-003) and (Ref. AMM TASK 49-11-11-400-003).
TASK 49-00-00-810-947
Continous Load-Compressor Surge or Load-Compressor Reverse Flow (APS 3200)
1. Possible Causes_______________
- COMPRESSOR DISCHARGE-PRESSURE SENSOR (8039KM)
- BLD CTL VLV (8051KM)
- INLET PRESSURE/TEMPERATURE SENSOR (8013KM)
- wiring
- ECB (59KD)
2. Job Set-up Information______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 49-00-00-710-008 Operational Test of the APU (APS 3200)
AMM 49-23-17-000-001 Removal of the Inlet Pressure/Temperature Sensor (8013KM) (APS 3200)
AMM 49-23-17-400-001 Installation of the Inlet Pressure/Temperature Sensor (8013KM) (APS 3200)
AMM 49-51-19-000-002 Removal of the Sensor - Compressor Discharge Pressure (8039KM) (APS 3200)
AMM 49-51-19-400-002 Installation of the Sensor - Compressor Discharge Pressure (8039KM) (APS 3200)
AMM 49-51-53-000-001 Removal of the Bleed Control Valve (8051KM) (APS 3200)
AMM 49-51-53-400-001 Installation of the Bleed Control Valve (8051KM) (APS 3200)
AMM 49-61-34-000-002 Removal of the Electronic Control Box (ECB) (59KD) (APS 3200)
AMM 49-61-34-400-002 Installation of the Electronic Control Box (ECB) (59KD) (APS 3200)
ASM 49-61/02
3. Fault Confirmation__________________
A. Do the operational test of the APU (Ref. AMM TASK 49-00-00-710-008).
4. Fault Isolation
_______________
A. If the APU Last Leg Report gives the maintenance message:
BLD FLOW XDCR (8039KM) / BLD CTL VLV (8051KM)
Fault Code Number: 169
NOTE : Do a check and make sure that the orifices and the lines which are
____ connected to the compressor discharge-pressure sensor are not clogged. Clean the orifices and the lines if necessary. Make sure that the Load Control Valve sense line is correctly installed and torqued.
NOTE : Do a check of the IGV Actuator guide pin for correct installation.
____ If the the fin is disengaged, replace the pin or carry out the APIC VSB 4500001-49-84.
- replace the COMPRESSOR DISCHARGE-PRESSURE SENSOR (8039KM) (Ref. AMM TASK 49-51-19-000-002) and (Ref. AMM TASK 49-51-19-400-002).
(1) If the fault continues:
- replace the BLD CTL VLV (8051KM) (Ref. AMM TASK 49-51-53-000-001) and (Ref. AMM TASK 49-51-53-400-001).
(a) If the fault continues:
- replace the INLET PRESSURE/TEMPERATURE SENSOR (8013KM) (Ref. AMM TASK 49-23-17-000-001) and (Ref. AMM TASK 49-23-17-400-001).
1 If the fault continues:
_
- do a check of the wiring from the ECB (59KD) AB/A1, A4, B2, B3, A2, A3 to the COMPRESSOR DISCHARGE-PRESSURE SENSOR P24/1, 2, 3, 4, 5, 6 (Ref. ASM 49-61/02).
a If the fault continues:
_
- do a check of the wiring from the ECB (59KD) AB/A1, A4, C8, C9, D3, E6 to the INLET PRESSURE/TEMPERATURE SENSOR (8013KM) P22/1, 2, 3, 4, 6, 5 (Ref. ASM 49-61/02).
b If the fault continues:
_
- replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-002) and (Ref. AMM TASK 49-61-34-400-002).
B. Do the test given in para. 3.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 106-106, 108-149, 211-299, 301-399, ∞∞49-00-00∞∞∞∞∞∞∞∞∞∞Page A219
Config-2 Aug 01/05 CES
TASK 49-00-00-810-948
APU AUTO SHUT DOWN - OVERTEMPERATURE, EGT Mismatch (APS 3200)
1. Possible Causes
_______________
- EGT THERMOCOUPLE 1 (8057KM1)
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