Supplement Airplane Maintenance Manual
Cessna 172 with TAE 125-02-99 / -114
AMM-20-02
Rev. No:
Rev. Date:
Chapter:
Issue:
Issue Date:
Page:
Content:
20-AMM-31-02
3
06.11.2013
3
8
1
25.08.2014
31.60
INDICATING INSTRUMENTS
CED 125
Figure 2 CED 125
The engine data of the engine installation to be monitored are
integrated in the combined engine instrument CED-125.
The ranges of the individual engine monitoring parameters are
shown in the following table.
Table 31-3a Markings of the CED 125
Instrument
Red
Range
Amber
Range
Green
Range
Amber
Range
Red
Range
Tachometer [rpm]
-
-
0-2300
-
> 2300
Oil Pressure [mbar]
0-1200
1200-2300 2300-5200 5200-6000
> 6000
Oil Pressure [psi]
0-17.4
17.4-33.4
33.4-75.4
75.4-87
> 87
Coolant
Temperature [°C]
< -32
-32...+60
60-101
101-105
> 105
Oil Temperature
[°C]
< -32
-32...+50
50-125
125-140
> 140
Gearbox
Temperature [°C]
-
-
< 115
115-120
> 120
Load [%]
-
-
0-100
-
-
Note:
If an engine reading is in the amber or red range, the "Caution"
lamp is activated. It only extinguishes when the
"CED/AED-Test/Confirm" button is pressed. If this test button is
pressed longer than a second, a self test of the instrument is
initiated.
Summary of Contents for Cessna 172
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