DOCUMENT NUMBER:
L500-912.820 ISSUE JUL 20, 2016
AMENDMENT: 00
DATE: 
CHAPTERPAGE 353
MAINTENANCE MANUAL STEMME S12
3.7.16 OIL PRESSURE INDICATING SYSTEM ATA 793100
3.7.16.1 DESCRIPTION
The oil pressure indicating system measures the pressure at the output of the mechanical oil pump
of the ROTAX 914 engine. A transducer generates a voltage of 0…5 V proportional to the pressure.
This voltage is displayed to the pilot by a pointer-style gauge.
The indicator shares a fuse with the CHT-left indicator. The fuse is located at the instrument panel
fuse holder (engine bus).
3.7.16.2 PARTS SPECIFICATION
Part STEMME p/n Manufacturer p/n
Oil Pressure Indicator 831.115 UMA T04113U010B030 TSO
Pressure Sender 831.116 UMA T1EU150G
3.7.16.3 OPERATION
The Oil Pressure Indication system does not require operation actions by the pilot. Scale markings
of operational limits and instructions to the pilot about corrective actions in the case of exceeded
limits are dened in the AFM.
3.7.17 OIL TEMPERATURE INDICATING SYSTEM ATA 793300
3.7.17.1 DESCRIPTION
The oil temperature indicating system measures the oil temperature in the crankcase of the
ROTAX 914 engine. The temperature signal is generated by a resistive type probe (Pt-100 charac-
teristics) and displayed to the pilot by a pointer-style gauge.
The indicator shares a fuse with the CHT-right indicator. The fuse is located at the instrument
panel fuse holder (engine bus).
3.7.17.2 PARTS SPECIFICATION
Part STEMME p/n Manufacturer p/n
Oil Temperature Indicator 831.241 UMA T12113R150C050 TSO
Temperature probe RTD
(Resistance Temperature Detector RTD)
831.243 UMA 1B4R
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