| |
TM 55-1520-240-23-9
11-14
REPAIR OF ALUMINUM CONNECTING LINK
11-14
INITIAL SETUP
Applicable Configurations:
Without 38
Tools:
Inclinometer
Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692
Airframe Repairer’s Tool Kit, NSN 5180-00-232-4876
Materials:
As Required
Parts:
Rivets
Personnel Required:
CH-47 Helicopter Repairer
Aircraft Structural Repairer
Inspector
References:
TM 1-1500-204-23
Task 11-7
Equipment Condition:
Off Helicopter Task
WARNING
Rod ends removed from fixed end of
link (rivet hole in rod end) are to be
discarded.
NOTE
Repair connecting links by replacing
rod end bearings and end fittings.
1.
Before replacing rod end bearing or end fitting,
check link for loose rivets or damaged thread.
2.
Blend out nicks and scratches. Depth of blending
must not be more than 10 percent of wall
thickness.
3.
Check for loose swaged insert (Task 11-7).
4.
Replace bearing or end fitting as follows:
a.
Measure and record distance between
bearings or end fitting attachment holes.
b.
Measure and record difference in angle of
bearing. Use inclinometer.
c.
If bearing or fitting is held by rivet, drill out
rivet.
d.
Record length of exposed bearing. Loosen
locknut and remove bearing or fitting.
e.
Install locknut on bearing or fitting.
f.
Install bearing or fitting to same length of
bearing exposed as recorded from step 4d.
g.
Adjust bearing or insert for length and angle
recorded in steps 4a and 4b.
h.
Tighten locknuts and check adjustment
measurement.
i.
Check inspection hole at bearing or insert.
Hole must be closed with thread.
5.
If bearing or insert requires riveting, check the
following:
WARNING
Do not enlarge rivet hole. Enlarged
hole may cause link failure, resulting
in loss of aircraft, and injury or death
to personnel.
a.
If link has bearings or inserts with 5/16 inch
diameter thread, and original rivet size cannot
be used, reject link.
b.
If link has bearings or inserts with 3/8 inch
thread, 1/8 inch may be drilled out to 5/32
inch. If rivet hole is elongated and 5/32 inch
diameter does not remove elongation, reject
link.
Change 1
11-53
|
