STEMME S12

DOCUMENT NUMBER:
L500-912.820 ISSUE JUL 20, 2016
AMENDMENT: 00
DATE: 
CHAPTERPAGE 721
MAINTENANCE MANUAL STEMME S12
7.4.3.4 RAM AIR COOLING
• Check condition of composite distributor (plenum) on cylinder barrels
• Check tight t, routing and condition of air hose from distributor to aluminum coupling
sheet.
• Check condition and attachment of the sheet to the fuselage steel frame and condition of
its rubber sealing to the RH cowling.
7.4.4 AIR INDUCTION SYSTEM
System Description : See section 3.4.4
7.4.4.1 INTERCOOLER AND AIR BOX
• Check condition and tight t of air hoses (observe section 5.2.1) and routing between
turbocharger and air box.
• Check condition of inter cooler, tight t of intercooler and condition of its suspension.
• Check tight t of air box on the carburetors (clamps) and condition of connection tube.
• Check lower rubber support of air box on turbocharger suspension strut.
7.4.4.2 AIR FILTER
In addition to instructions in Maintenance Manual (Line Maintenance) for ROTAX Engine Type
914 Series check condition and tight t of air hose assy. between turbocharger inlet and lter,
including composite sealing plate.
See Maintenance Manual (Line Maintenance) for ROTAX Engine Type 914 Series,
section 12-20-00, (Annex E).
7.4.5 EXHAUST SYSTEM
System description : See section 3.4.5
7.4.5.1 TURBOCHARGER / MUFFLER MOUNTINGS
• Check tight t of screw connections of the mounting struts, on engine housing and
turbocharger/muer side, and tight t of turbine-compressor and turbine-muer screw
connections. Check tight t of the clamp supporting the muer.
• Check condition of struts (cracks, especially close to welding seams, corrosion, e.g. from
chang).
•
Check proper position of turbocharger unit (clearance of exhaust headers to fuselage steel
frame, especially cross-strut below engine).