LANCE
II SERVICE
MANUAL
854
HOLDING
FIXTURE
LEVEL SUPPORT
Figure 4-15. Aileron Balancing
4-30. BALANCING AILERONS. (Refer
to Figure 4-15.) Position the
aileron on the
balancing fixture in a draft
free area and in a manner which allows
unrestricted movement
of the
aileron on the hinges. Place the tool
on the aileron, avoid rivets and keep
the beam
perpendicular to the
hinge centerline. Calibrate the tool
as described in Paragraph 4-29.
Read the scale when the bubble
level had been centered by adjustment
of the movable
weight and determine the static balance. If the static balance is not within the limits
specified in Table IV-II, proceed as follows:
a. Leading Edge Heavy:
This condition is highly improbable;
recheck measurements
and
calculations.
b. Trailing Edge Heavy: There are no provisions for adding weight to balance weight to
counteract a trailing
edge heavy edge condition; therefore,
it will be necessary to determine
the exact cause of the unbalance. If the aileron is too heavy because of painting over old
paint,
it will be necessary to strip all paint
from the aileron and repaint. If the aileron
is too
heavy resulting from
repair to the skin or ribs, it will be necessary
to replace damaged parts
and recheck the balance.
Issued: 1/3/78
STRUCTURE
1F8
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