TM 55-1520-240-23-4
5-82.1
ADJUST BLADE BALANCE WEIGHTS
(Continued)
5-82.1
4.
Find span balance weight adjustment for nickel
erosion cap replacement (Task 5-66) as follows:
a.
Find erosion cap weight difference (Task
5-66) at bottom of chart 4.
b.
Move up along weight difference line to
intersect diagonal line on chart 4. Example
shows weight difference of 0.40 pound.
c.
Move across to left edge of chart 4 to
find tracking weight adjustment. Example
shows weight difference of 0.40 pound
requires-tracking weight adjustment of 1.6
inches. If new cap is heavier than removed
cap, weight must be removed from forward
fitting. If new cap is lighter than removed
cap, weight must be added to forward fitting.
Record tracking weight adjustment.
d.
Move across to right edge of chart 4 to find
span balance weight adjustment. Example
shows weight difference of 0.40 pound
requires balance weight adjustment of 0.80
inch (0.33 pound). If new cap is heavier
than removed cap, weight must be shifted
from forward fitting to aft fitting. If new cap is
lighter, weight must be shifted from aft fitting
to forward fitting. Record balance weight
shift. Go to step 6.
5-502
