INSPECT TIE-BAR ASSEMBLY
Clean tie-bar assembly (1). Use cloths (E120)
damp with solvent (E162). Wear gloves (E186)
Cracks will appear perpendicular to
the plate surface and should not be
confused with horizontal scratches
or tool marks.
Visually inspect tie-bar plates (2) for cracks using
10X magnification. No cracks allowed.
Inspect four tie-bar slots (3) using a borescope
with a rigid right angle probe.
The borescope probe should not
exceed 0.110 inch diameter.
Insert the borescope probe in each slot (3)
and examine plates (2) for cracks along the
full depth and span of the slot.
If a suitable borescope and probe are not
available, visually inspect each slot (3) using
a light source.
Washers (4) with a dished condition
will have a a gap between the washer
and adjacent plate (2).
Inspect washers (4) for flatness and deformation
including dishing and cracks. The maximum
deviation (gap) between washer (4) and adjacent
plate (2) is 0.015 inch. No cracks allowed.
Install tie-bar assembly (Task 5-23.2).
END OF TASK