71-00-58
ALL ú ú C01 Page 103 ú Feb 25/85
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
4
3
5
6
13
12
11
10
9
8
7
B
4
15
19
18
8 17 C
Engine Oil System Plumbing and Leak Check Figure 102 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
71-00-58
ALL ú ú C01 Page 104 ú Feb 25/85
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
MEC FUEL CONTROL SEE A BOX
MEC SPECIFIC GRAVITY SETTING CHECK
1. OPEN THE LEFT FAN COWL PANEL SPECIFIC
(AMM 71-11-02/201).
GRAVITY
2. LOOK AT THE BOTTOM OF MEC, EXAMINE ADJUSTER
SETTING OF SPECIFIC GRAVITY ADJUSTER,
AND COMPARE TO SPECIFICATION FOR FUEL MAIN ENGINE CONTROL (MEC) - BOTTOM VIEW
TYPE IN TABLE BELOW. IF THE NOMINAL
SPECIFIC GRAVITY OF THE FUEL IS KNOWN A
TO BE SLIGHTLY DIFFERENT THAN THE STANDARD,
THAT VALUE SHOULD BE USED AS THE NORMAL
VALUE AND THE ENRICHMENT ADJUSTMENT FROM
THAT VALUE MAY BE UP TO 0.04 UNITS.
SPECIFIC GRAVITY SETTINGS
*MAXIMUM ADJUSTMENTFUEL
JET A, JET A1, JP-1, JP-5, JP-8
0.82
0.78
JET B, JP-4
0.77
0.73
*THE FUEL ENRICHMENT IS ONLY ALLOWABLE ON ENGINES THAT
HAVE A 5TH-STAGE START BLEED VALVE (CFMI SB 72-298).
3. IF IT IS NECESSARY, ADJUST SPECIFIC GRAVITY SETTING AS FOLLOWS:
A. USE A 5/32-INCH HEXAGONAL WRENCH, TURN SCREW IN CENTER OF SPECIFIC GRAVITY PLATE TO ALIGN SCRIBE MARK ON SCREW WITH APPLICABLE INDEX MARK ON PLATE.
4. CLOSE THE LEFT FAN COWL PANEL (AMM 71-11-02/201).
MEC Specific Gravity Setting Check Figure 103
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
71-00-58
ALL ú ú C01 Page 105 ú Mar 15/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
SEE B
SEE A
CIT SENSOR SHROUD DRAIN
FWD
A
CHECK CIT SENSOR TUBING
1.OPEN LEFT FAN DUCT COWL AND THRUST REVERSER HALF (78-31-00 MP). 2.CHECK CIT SENSOR SHROUD DRAIN TUBE FOR EVIDENCE OF FUEL LEAKAGE. IF FOUND, REPLACE CIT SENSOR (73-21-02). 3.VISUALLY EXAMINE ACCESSIBLE TUBING ON FAN CASE AND ENGINE CORE FOR THE FOLLOWING (SHEET 2):
A. EVIDENCE OF FUEL LEAKS
B. CRACKS
C. DENTS
D. COLLAPSED SECTIONS
E. WEAR THROUGH
F. KINKS
G. LOOSE FITTINGS
4. CLOSE FAN DUCT COWL AND THRUST REVERSER HALF (78-31-00 MP).
CIT Sensor Tubing Check Figure 104 (Sheet 1)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
71-00-58
ALL ú ú C01 Page 106 ú Feb 25/85
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
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 动力装置 POWER PLANT 2(86)