CHAPTER 78
PAGE 15
MAINTENANCE MANUAL EXTRA 300SC
PAGE DATE: 1. August 2014
Inspection / Repair
This can be done without removing the system.
1 Inspect the exhaust system for cracks and corrosion.
N O T E The exhaust material is Inconel 625. Use qualified
personell and filler metal.
2 Reweld minor cracks.
3 Replace parts that show major damage.
78-10-31 Exhaust Pipe
Replacement
1 Remove exhaust system per chapter 78-10-30.
2 For cylinders 1-2 pull the exhaust pipe out of the slip joint
and replace the exhaust pipe.
3 For cylinders 3-4-5-6 loosen the bolts on the slip joints
and replace the exhaust pipe.
4 Drill 4.8 mm (3/16") hole for EGT sensor(s) at identical
location.
5 Reinstall exhaust system in reverse sequence of removal.
78-10-33 Gasket
Replacement
1 Remove exhaust system per chapter 78-10-30.
2 Replace gaskets
3 Reinstall exhaust system in reverse sequence of removal
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