Maintenance Manual STEMME S10-VT
Date of Issue: Jan. 01, 1998
Page 7-16
Amendment Nr. 14
Date: Nov. 30. 2007
A4011121_B23.doc
Doc. No. A40-11-121
Check fuel cock and both drain valves for tight fit and function. After drainage, the drainer must close without
leakage. If the screw joint of the drainer leaks, carefully tighten up drainer. If required, renew drainer affected.
Check firewall penetration assembly of fuel lines for tight fit and for leakage. Check clearance between airbox
and firewall penetration assy.
Check condition and routing (clearance to moving components, kinks) of supply and return lines inside the
engine compartment. Check for tight fit of clamp connections at firewall penetration and pressure regulator.
Check condition, routing and tight fit of fuel lines from pressure regulator to both carburetors, pressure
connection hoses (airbox, carburetors, pressure sensors) and compensating tube assy at carburetors.
See “Maintenance Manual (Line Maintenance) for ROTAX Engine Type 914 Series”,
section 12-00, subsection 2.2, (Annex E)
Check condition, attachment and routing (clearance to hot surfaces) of drainage lines from carburetor trip tray
and airbox to outlets above lower cowl flap.
7.4.7 Engine Controls / Monitoring
System description:
See section 3.4.7
Adjustment of Carburetors:
See "Maintenance Manual (Line Maintenance) for ROTAX Engine Type 914 Series”, section 12
-00,
subsection 4.1, (Annex E)
Check of Throttle Assy
Check throttle lever in cockpit for condition, smooth operation and tight fit of screws fixing throttle lever gate
(defining 115% stop) and rear idle stop. Adjust friction of throttle lever brake via knurled screw LH side of
lever assy. Check condition of bowden cable and spring on both carburetors. With throttle lever on 115%,
spring on both carburetors must keep a small tension. Check stop positions of 115% and idle via
corresponding positions of both carburetor throttle valve levers.
Check of Trottle Lever Stops
Adjust throttle lever to forward stop (end of gate): throttle valve lever on both carburetors must reach
115% stop
Adjust throttle lever to aft idle stop: throttle valve lever on both carburetors must reach screw stop for idle
Check of Throttle Valve Positions by Means of TCU Communication Program
Perform this check by means of the TCU communication program. Usage is described "Maintenance Manual
(Heavy Maintenance) for ROTAX Engine Types 912 and 914 Series”
See "Maintenance Manual (Heavy Maintenance) for ROTAX Engine Types 912 and 914 Series”,
section 76-00, subsection 3.1.1
Check of Choke Assy
Check condition and smooth operation of choke lever. Adjust friction of choke lever brake via knurled screw
RH side of lever assy. Check condition of bowden cable and spring on both carburettors. Check reaching end
stops of carburetor choke lever with forward and aft choke lever positions in cockpit.
Check of TCU and Waste-Gate Servo
Check condition, attachment and wiring of the TCU. Check pressure hoses (observe section 5.2.4). Check
condition of the waste-gate servo assembly. Check condition of the bowden cable driving the waste-gate.
CAUTION:
It is most important to check condition and smooth operation of the bowden cable actuating the
waste-gate. Poor condition of the bowden cable can result in uncontrolled waste-gate positions
and engine malfunction in spite of intended function of the waste-gate servo.
Check of Engine Instruments
Overview of Engine Monitoring Instruments: see equipment lists (section 9.1 and 9.3)
Perform this check during engine test run, refer to section 7.4.1.17. Check all engine instruments installed for
intended function. Check tachometer indication by means of the TCU-Communication program. Usage is
