- do a repair/cleaning.
(2) If the electrical connections of the EGT 2 THERMOCOUPLE is OK:
- use a multimeter to do a resistance check across the terminals: chromel and alumel of the EGT 2 THERMOCOUPLE; required value < 20 Ohms, and chromel and grounded EGT 2 mount flange; required value > 100 kOhms, and alumel and grounded EGT 2 mount flange; required value > 100 kOhms.
(a) If the resistance values are out of the specified limits:
- replace the EGT 2 THERMOCOUPLE (Ref. AMM TASK 49-72-15-000-002) and (Ref. AMM TASK 49-72-15-400-003).
(b) If the resistance values are in the specified limits:
- do a check and repair of the aircraft wiring from the ECB (59KD) AB/A8,A9 to the EGT 2 THERMOCOUPLE terminals chromel/alumel (Ref. ASM 49-61/01).
1 If the fault continues:
_
- replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-003) and (Ref. AMM TASK 49-61-34-400-003).
2 If the fault continues:
_
- do a check for of the EGT 1 THERMOCOUPLE (Ref. TASK 49-70-00-810-817)
3 If the fault continues:
_
- replace the PRIMARY FUEL-NOZZLE and MANIFOLD ((Ref. AMM TASK 49-31-41-000-003) and (Ref. AMM TASK 49-31-41-400-003)) and
「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 : 001-049, 101-105, 107-107, 151-154, ∞∞49-70-00∞∞∞∞∞∞∞∞∞∞Page 213
201-207, Config-2 Aug 01/05 CES
the SECONDARY FUEL-NOZZLE and MANIFOLD ((Ref. AMM TASK 49-31-42-000-004) and (Ref. AMM TASK 49-31-42-400-006)). **ON A/C 001-049, 101-105, 151-199, 201-210, Post SB 49-1062 For A/C 001-049,101-105,151-154,201-207,
A. If the APU GND SCANNING menu gives the maintenance message:
EGT TCPLE RAKE (8057KM2)
associated with Fault Code Number (FCN) 46
- do a check for damage/contamination of the electrical connections of the EGT TCPLE RAKE (8057KM2).
(1) If the electrical connection of the EGT TCPLE RAKE (8057KM2) is damaged/contaminated:
- do a repair/cleaning.
(2) If the electrical connections of the EGT TCPLE RAKE (8057KM2) is OK:
- use a multimeter to do a resistance check across the terminals chromel and alumel of the EGT TCPLE RAKE (8057KM2).
(a) If the resistance is >20 Ohms:
- replace the EGT TCPLE RAKE (8057KM2) (Ref. AMM TASK 49-72-15-000-002) and (Ref. AMM TASK 49-72-15-400-003).
(b) If the resistance is < 20 Ohms:
- do a check and repair of the aircraft wiring from the ECB (59KD) AB/A8,A9 to the EGT TCPLE RAKE (8057KM2) terminals chromel/alumel (Ref. ASM 49-61/01).
1 If the fault continues:
_
- replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-003) and (Ref. AMM TASK 49-61-34-400-003).
B. If the APU GND SCANNING menu gives the maintenance message:
EGT TCPLE RAKE (8057KM2)
associated with Fault Code Number (FCN) 47
- do a check for damage/contamination of the electrical connections of the EGT TCPLE RAKE (8057KM2).
(1) If the electrical connection of the EGT TCPLE RAKE (8057KM2) is damaged/contaminated:
- do a repair/cleaning.
「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 : 001-049, 101-105, 107-107, 151-199, ∞∞49-70-00∞∞∞∞∞∞∞∞∞∞Page 214
201-210, Config-2 Aug 01/05 CES (2) If the electrical connections of the EGT TCPLE RAKE (8057KM2) is OK:
- use a multimeter to do a resistance check across the terminals: chromel and alumel of the EGT TCPLE RAKE (8057KM2) ; required value < 20 Ohms, and chromel and grounded EGT 2 mount flange; required value > 100 kOhms, and alumel and grounded EGT 2 mount flange; required value > 100 kOhms.
(a) If the resistance values are out of the specified limits:
- replace the EGT TCPLE RAKE (8057KM2) (Ref. AMM TASK 49-72-15-000-002) and (Ref. AMM TASK 49-72-15-400-003).
(b) If the resistance values are in the specified limits:
- do a check and repair of the aircraft wiring from the ECB (59KD) AB/A8,A9 to the EGT TCPLE RAKE (8057KM2) terminals chromel/alumel (Ref. ASM 49-61/01).
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