(3)
Location Zones
101 Flight Compartment, LH
102 Flight Compartment, RH
B. Procedure
S 846-002
(1) Prepare for the test:
(a)
Start and operate the APU (AMM 49-11-00/201).
(b)
Let the engine operation become stable without a load applied.
(c)
Set the AC switch on the P5 forward overhead panel to APU GEN.
(d)
Make sure the engine operation is stable at a frequency of 405 |5 Hz with no load applied.
S 756-003
(2) Do the test of the EGT control point:
(a)
Set the APU BLEED switch on the P5 forward overhead panel to the ON position.
(b)
Set the ISOLATION VALVE switch on the P5 forward overhead panel to the OPEN position.
(c)
Set the R PACK and L PACK switches on the P5 forward overhead panel to the AUTO position.
(d)
After two minutes, set the R PACK and L PACK switches to HIGH.
(e)
Add a 100 amp electrical load to the APU electrical generator.
(f)
If the maximum permitted temperature for the ETC is set to the recommended temperature of 620°C (1148°F), do these steps: 1) Monitor the APU EGT on the EGT indicator on the P5 forward
overhead panel. 2) Write the APU EGT shown on the EGT indicator. 3) Compare the APU EGT indication with the value on Table 1. 4) Remove the 100 amp electrical load from the APU electrical
generator. 5) Set the R PACK and L PACK switches on the P5 forward overhead panel to the OFF position.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH THE ETC ú
49-61-71
ú ú 02 Page 601 ú Nov 15/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / GTCP85-129 SERIES /737-300/400/500/ ENGINES /MAINTENANCE MANUAL ////////////////////////
OUTSIDE AIR TEMPERATURE (OAT) VS APU EXHAUST GAS TEMPERATURE (EGT)
1
(`F) OAT (`C) OAT (`C) APU EGT
4 2 0 -17 -16 -18 516 |10 519 |10 521 |10
10 8 6 -14 -13 -12 524 |10 527 |10 529 |10
16 14 12 --10 9 -11 532 |10 534 |10 537 |10
18 20 22 ---6 7 8 540 |10 542 |10 545 |10
26 24 28 ---4 3 2 548 |10 550 |10 553 |10
34 32 30 1-0 1 556 |10 558 |10 561 |10
36 40 38 2 3 4 563 |10 566 |10 569 |10
46 44 42 8 7 6 571 |10 574 |10 577 |10
48 9 579 |10
EGT INDICATION WITH THE APU IN THE FULLY LOADED CONDITION (BOTH A/C PACKS ON HIGH AND A 100 AMP ELECTRICAL LOAD) WITH A T2 BIAS FROM THE ETC (EGT SET-POINT AT 621`C)
Normal Operating Temperatures for a Fully Loaded Condition
Figure 601 (Sheet 1)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH THE ETC ú
49-61-71
ú ú 01 Page 602 ú Mar 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
OUTSIDE AIR TEMPERATURE (OAT) VS APU EXHAUST GAS TEMPERATURE (EGT)
1
(`F) OAT (`C) OAT (`C) APU EGT
52 50 10 11 580 |10 584 |10
54 56 58 13 14 12 588 |10 590 |10 592 |10
60 62 64 17 18 16 595 |10 598 |10 600 |10
66 68 70 19 20 21 603 |10 606 |10 608 |10
72 74 76 22 23 24 611 |10 613 |10 616 |10
78 80 82 26 27 28 619 |10 621 |10 621 |10
84 86 88 29 30 31 621 |10 621 |10 621 |10
90 92 94 34 32 33 621 |10 621 |10 621 |10
96 98 100 37 38 36 621 |10 621 |10 621 |10
102 104 106 40 41 39 621 |10 621 |10 621 |10
108 42 621 |10
Normal Operating Temperatures for a Fully Loaded Condition
Figure 601 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH THE ETC ú
49-61-71
ú ú 01 Page 603 ú Mar 12/02
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：737-300 400 500 AMM 飞机维护手册 AIRBORNE AUXILIARY POWER 2(117)
