DOCUMENT NUMBER:
L500-912.820 ISSUE JUL 20, 2016
AMENDMENT: 00
DATE: îî
CHAPTERîPAGE 7î15
MAINTENANCE MANUAL STEMME S12
7.4.1.3 CLEANING OF THE ENGINE
See îMaintenance Manual (Line Maintenance) for ROTAX Engine Type 914 Seriesî,
section 12-20-00, subsection, (Annex E).
7.4.1.4 VISUAL CHECK OF ENGINE
Special attention must be paid to the condition and the proper attachment of the two metal oil
lines between turbocharger and oil pump. In particular check the condition of the brazed joints
between the pipe and its îttings (check for cracks).
Further information see îMaintenance Manual (Line Maintenance) for ROTAX Engine Type 914
Seriesî, section 12-20-00, (Annex E).
7.4.1.5 LEAKAGE CHECK
Special attention during the leakage check must be paid to the brazed îttings of the two metal
oil lines between turbocharger and oil pump.
Further information see îMaintenance Manual (Line Maintenance) for ROTAX Engine Type 914
Seriesî, section 12-20-00, (Annex E).
7.4.1.6 INSPECTION OF EXTERNAL ENGINE COMPONENTS
See îMaintenance Manual (Line Maintenance) for ROTAX Engine Type 914 Seriesî,
section 12-20-00, (Annex E).
7.4.1.7 CHECK OF WASTEîGATE
Deviating from the îgures in the ROTAX manual the waste-gate control of the ROTAX 914 F2/S1 has
been modiîed according to the following îgure 7.4.1.7a. The servo cable and the spring are now
attached to an additional swiveling lever (1), which is mounted on the original lever of the waste-gate.
Information provided by the îMaintenance Manual (Line Maintenance) for ROTAX Engine Type
914 Seriesî will remain valid in an analogous sense.
Spare parts for the modiîed waste-gate-control can only be supplied by STEMME.
a) Check the components
In particular make sure that the whole waste-gate-control (cable, waste-gate including the
swiveling lever (1)) moves smoothly and easily.
Further information see îMaintenance Manual (Heavy Maintenance) for ROTAX Engine Types 912
and 914 Seriesî, section î78-00-00î, (Annex E).
b) Check the waste-gate position
See îMaintenance Manual (Line Maintenance) for ROTAX Engine Type 914 Seriesî,
section î12-20-00î, (Annex E).