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TM 9-2835-255-34
LOW PRESSURE TURBINE NOZZLE REPLACEMENT (Sheet 8 of 11)
6. CHECK VERTICAL RUNOUT OF POWER TUR-
BINE SHAFT (1).
a.
Set dial indicator gauge pointer to zero.
b.
Rotate power turbine shaft (1) 180 degrees to
6 o'clock position and note direction of indica-
tor gauge pointer travel as turbine shaft (1) is
rotated. Record dial reading.
c.
Rotate power turbine shaft (1) in reverse direc-
tion back to 12 o'clock position.
d. Adjust runout fixture bottom swivel head
screws (2) to obtain a dial reading equal to
one half the dial reading recorded in step b.
NOTE
Dial indicator gauge pointer must travel in
same direction as noted in step b. when
adjusting centering screws.
e.
Reset indicator gauge pointer to zero at 12
o'clock position, then rotate power turbine
shaft (1) 180 degrees to 6 o'clock position and
note dial reading.
f.
If zero reading is obtained at 6 o'clock posi-
tion, go to step 7.
g.
If zero reading is not obtained at 6 o'clock
position, repeat steps c., d., and e.
Go on to Sheet 7
6-97
Change 6
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