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TM 5-4320-304-14
TM 08922A-14/1
6-3. REPAIR/REPLACE CONNECTING ROD (Continued)
7
Disassemble connecting rod and carefully insert bearing halves (8). The bottom half has a hole
which fits into connecting rod cup. Reassemble connecting rod with two Allen screws. Tighten
screws following procedures described in preceding step 5.
8
Measure inside diameter of bearing. Measure
at points 1 and 2 along axes A and B.
Measurements should be 1.6541 to 1.6525
inches (42.016 to 41.974 mm).
9
If any measurement is outside the tolerance
limits, replace the bearing. Make sure that
measurements at points 1 and 2 are not
different nor outside the tolerance limits,
indicating that bearing is wearing in a
conical shape.
10 Make sure measurements along axes A and
B are not different nor outside the toler-
ance limits, indicating the bearing is wearing in an oval shape.
11 If bearing is out-of-round, replace it.
Follow procedure described in paragraph 6-8. Also check
cylinder and piston for unusual wear.
Follow procedures described in paragraphs 5-11 and 5-12.
REPAIR:
Dry cleaning solvent P-D-680 (safety or Stoddard’s
Solvent) is potentially dangerous. Avoid repeated
and prolonged breathing of vapors and skin con-
tact with the liquid. Do not use near open flame,
arcing equipment, or other ignition sources. Al-
ways wear eye protection and protective clothing.
The flash point of P-D-680 is 100° to 138°F (38°
to 59°C).
Death or serious injury could occur if compressed
air is directed against the skin. Do not use com-
pressed air for cleaning or drying unless the pres-
sure is/has been reduced to 30 psi (2.06 bar)
or less. When working with compressed air, always
use chip guards, eye protection, and other personal
protective equipment.
1
Clean rod bushing (9) and connecting rod (7) bore with dry
cleaning solvent and dry with compressed air.
6-8
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