100 100 50 50 00
80 80
60 OIL 60 OIL OIL
PRESS PRESS
TEMP `C
100 100
200 200
40 40
100 100
PSI 0 PSI0 00
20 20
OIL QTY %FULL
PILOTS CENTER INSTRUMENT PANEL PILOTS CENTER INSTRUMENT PANEL
C1 C2
1
AIRPLANES WITH OIL
2 AIRPLANES WITH SECONDARY ENGINE PRESSURE INDICATORS
AND HYDRAULICS DISPLAY UNIT
Oil Pressure Indicating System Component Location
Figure 1 (Sheet 2)
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ALL ú ú C02 Page 3 ú Mar 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
P2-2 CENTER INSTRUMENT PANEL
Oil Pressure Indicating System Schematic
Figure 2 (Sheet 1)
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INDICATORS ú
ú C02 ú BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. Page 4Mar 15/94
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
P2 CENTER INSTRUMENT PANEL
Oil Pressure Indicating System Schematic
Figure 2 (Sheet 2)
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79-32-00
AND HYDRAULICS DISPLAY ú ú C01 Page 5 ú Mar 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
B. AIRPLANES WITH ENGINE INSTRUMENT SYSTEM (EIS); Refer to the data that follows:
(1)
The indicating system is operational when 28 volts ac and 28 volts dc power is supplied to the Secondary Engine and Hydraulics Display from the P6-2 circuit breaker panel. Display lighting is 5 volts ac.
(2)
At the transmitter, oil pressure acts on the diaphragm which moves an armature between two coils changing the reluctance. A microprocessor processes the signal for display on the Secondary Engine and Hydraulics Display.
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ALL ú ú C05 Page 6 ú Mar 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
OIL PRESSURE INDICATING SYSTEM - ADJUSTMENT/TEST
________________________________________________
1. General
_______
A. This procedure contains an operational test and a system test for the Oil Pressure Indicating System. The operational test is done when each engine is in operation to make sure the oil pressure indicating system operates correctly. The system test is done to make sure the system precision is satisfactory.
TASK 79-32-00-715-001-C00
2. Operational Test - Oil Pressure Indicating System
_________________________________________________
A. References
(1) AMM 71-00-00/201, Power Plant
B. Access
(1) Location Zones
101/102 Control Cabin
C. Procedure
S 865-002-C00
(1) Make sure these circuit breakers are closed:
(a) P6-2 Load Control Center 1) For Engine No. 1: a) AIRPLANES WITHOUT THE ENGINE INSTRUMENT SYSTEM (EIS); ENG 1 OIL TEMP & PRESS AC
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