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XT 582 Maintenance Manual
Issue 1.0
September 21st 2005
Page 84
71. POWER PLANT
71.00.00 General
This chapter provides information on the installation of the engine, but not the engine itself, or its
accessories. Information on these may be found in successive chapters.
71.00.10 Engine Run Up
Refer to the pilots operating handbook for run up procedures. The engine should be run up to operating
temperature any time that parts or fluids are replaced, or if the engine has been overhauled follow the
Rotax instructions in the Rotax manual.
71.00.20 Engine Removal/Installation
Engine removal and installation is straight forward and obvious but the following procedure may assist:
Removal
1. Ensure that the emergency fuel shut off valve is OFF.
2. Remove the propeller and mount
3. Disconnect all fluid flexible lines, cap and identify.
4. Disconnect all instrumentation cables from the engine.
5. After the four engine mounts have been undone, the engine may be carefully removed by two
people, one on each side. If one person is to perform the operation or if two willing and capable people
are unavailable, there are mounting points for a hoist on the top of the engine. The Rotax manual
should be consulted for the correct bolt sizes and methods.
While the engine is off
Check the condition of the engine mount, and the engine mount rubbers (See section 71.20.00),
replace or repair as necessary.
Installation
The installation of the engine is the reverse of removal. When the exhaust system is rejoined Loctite
Antisieze Lubricant should be used on all of the areas that butt into each other. (Loctite # 76764.)
71.20.00 Mounts
The engine mount is of welded steel RHS construction. The XT is supported on the engine mount
assembly at four points through rubber shock mounts. These shock mounts should be inspected
regularly for deterioration, excessive sagging and other damage. It is recommended – but not
considered mandatory - that these be replaced at 500 hour intervals. Any damage or distortion to the
engine mount structure should be repaired promptly, as apart from any loss of structural integrity,
distortion or misalignment of the engine mount structure could impose abnormal stresses on the engine
itself.
Figure 59 Engine Mount Rubbers (XT 912 Shown in photo)