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TM 5-4320-308-13
4-11. REPAIR PUMP CASE (Continued)
3
Chase threaded holes using appropriate size tap.
WARNING
Dry cleaning solvent P-D-680 (safety or Stoddard's Solvent) is potentially dangerous. Avoid
repeated and prolonged breathing of vapors and skin contact with the liquid. Do not use near
open flame, arcing equipment, or other ignition sources. Always 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
compressed air for cleaning or drying unless the pressure 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.
4
Using dry cleaning solvent and a stiff-bristled brush, clean threaded holes thoroughly.
5
Using clean compressed air at 30 psi (2.11 kgcm2 ) maximum discharge pressure, blow out threaded holes to
make sure that all solvent has been removed and no particles are left in the holes.
6
Inspect threads of bushings (5 and 6) for damage. If damaged, replace bushings.
7
Inspect reducing bushing (7) threads for damage. If damaged, replace bushing.
8
Coat new insert (1, 2, or 3) with zinc chromate primer coating.
9
Insert each insert to a depth of 1 to 1.5 pitches below the top surface of the tapped hole in pump case (4). Wipe
off excess primer.
10
Remove drive tang from installed insert.
4-19
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