TM 55284025423
1108 ADJUST FUEL CONTROL (N1) (Continued)
1108
4. Adjust compressor rotor maximum speed by turn
ing adjustment screw (1).
CAUTION
Unrestricted maximum power trimming of
engine will result in exceeding power tur-
bine inlet temperature limit. (Ref. TM
55152024010 or Task 1107)..
NOTE
Adjustment screw must be turned one half
turn beyond desired setting; then returned
onehalf turn to desired setting. This will elim-
inate backlash on adjustment screw. One full
turn of adjustment screw will result in change
of approximately four percent of compressor
rotor speed when power selector lever is in
maximum continuous position.
Turn adjustment screw (1) clockwise to in-
a.
crease maximum setting.
b. Turn adjustment screw (1) counterclockwise
to decrease maximum speed setting.
c.
Check compressor rotor ground idle speed
adjustment if compressor rotor adjustment
screw (1) is turned.
NOTE
After adjustment of compressor rotor maxi-
mum speed a turbine engine analysis check
and baseline hit check are required (Ref. TM
551520240231).
FOLLOWON MAINTENANCE:
None
END OF TASK
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