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TM 9-2990-206-34&P
DISASSEMBLY--Continued.
REMOVE IMPELLER NUT (COMPRESSOR WHEEL NUT)
TOOLS:
13/16 inch, angular offset box wrench, 12 point
1/2 inch, 1/2 inch drive socket, 12 point
1/2 inch drive ratchet handle
Holding fixture (improvised)
REMOVAL :
Place a 13/16 inch angular 12 point box
1.
wrench in vise. Position wrench to
hold turbine wheel hub.
2. Place turbine wheel hub in box wrench and
hold in position (A).
3. Using 1/2 inch socket and ratchet handle (B)
remove compressor wheel nut (C) from turbine
wheel shaft.
4. On turbine wheel hubs that cannot be held
with a box wrench (because of factory
balancing), use improvised holding fixture
(D) to keep turbine wheel from turning.
Refer to page 2-5 for fabrication instruc-
tions.
5. Using 1/2 inch socket and ratchet handle (B),
remove nut (C) from turbine wheel shaft.
3-5
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