Power Plant; Air Cleaning System; Engine Buildup; Oil Contamination - THRUSH S2R – G10 Maintenance Manual

AIRPLANE MAINTENANCE MANUAL

POWER PLANT

The Garrett TPE-331 powered Turbo
Thrush is lighter and more streamlined
than the radial engine powered versions.
This results in substantially improved
aircraft performance.

AIR CLEANING SYSTEM

The Garrett TPE-331 engine does not
incorporate an air filtration system, as do
the corresponding Pratt & Whitney engines
used on this aircraft.
required on the TPE-331 engine.
A 6061T6 ¼" Aluminum Grille, located at
the entrance of the compressor inlet,
prevents engine ingestion of objects such
as large birds.

ENGINE BUILDUP

CAUTION
Consult the Honeywell engine
maintenance
removing the new engine from
the shipping container.
Engine build-up consists of installing a
restricted (snubber) oil pressure fitting, a
restricted (snubber) fuel pressure fitting,
rigging the engine's power management
system, moving the fuel shut off valve aft
of the compressor flange, moving the NTS
lockout solenoid, installing the tachometer
generator and installing the NTS and Beta
pressure switches. If installing a fuel flow
transducer, do so at this time IAW the
applicable section of this manual.

OIL CONTAMINATION

If the engine is being removed because of
oil contamination or if there is possibility of
oil contamination, scrap the oil cooler and
thoroughly wash out the inside of all oil
carrying lines and hoses or replace them.
Return the propeller and any other oil
wetted components
maintenance facility for disassembly and
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THRUSH AIRCRAFT INC - MODEL S2R-G10
No air filtration is
manual before
to the rated
cleaning. Failure to comply with the above
procedure will prove to be false economy,
as the new engine will be contaminated by
old impurities.
* NOTE *
Tag or identify all hoses, bolts, nuts,
and electrical connector plugs and
note harness clamp locations for
installation on the new engine. Cap
all open hoses and engine ports to
prevent contamination.

ENGINE REMOVAL

CAUTION
To prevent damage to internal
mechanisms, if the engine is to
be idle more than the time
recommended by the engine
manufacturer,
preserved in accordance with
the engine
recommendations, as outlined
in the engine
manual.
a. Preliminary steps:
1. Turn the fuel selector valve off and
drain engine oil.
2. Disconnect electrical power to the
aircraft.
3. Provide suitable containers under
the engine to catch fuel and oil
spillage.
b. Remove engine cowling.
c. Disconnect batteries.
d. Remove propeller
manufacturer's
appropriate section of this manual.
e. Remove exhaust nozzle.
f. Disconnect the following tube and hose
assemblies at the locations noted:
it should be
manufacturer's
maintenance
IAW the
instructions or the
Effective: 03/26/2010