Cleaning. - TM-55-1930-208-240126

TM 55-1930-208-24

d. Cleaning.

WARNING

Do not breathe cleaning solvent P-D-680 vapors for long periods of time or use solvent near

open flames. To avoid illness, explosion, or fire, only use solvent in well-ventilated areas away

from open flames.

(1) Clean all injector parts with cleaning solvent (item 4, Appendix C). Allow to dry.

(2) Use spray tip cleaning tool J4298-1 and clean the spray tip.

(3) Clean the tip orifices with tool J1243 and tip cleaning wires J21459-01 or J2146-01.

(4) Hone the end of the spray tip with stone J8170.

(5) The exterior may be cleaned with a brass wire buffing wheel.

(6) Clean and brush all passages in the injector body using fuel hole cleaning brush J8152 and rack

hole cleaning brush J8150. Wash body in cleaning solvent (item 4, Appendix C) and allow to dry.

(7) Carefully insert reamer J21089 in the injector body. Turn reamer in a clockwise direction a few

turns, then remove the reamer and check the face of the ring for reamer contact over the entire

face of the ring. If necessary, repeat the reaming procedure until the reamer makes contact with

the entire face of the ring. Clean up the opposite side of the ring in the same manner.

(8) Carefully insert reamer J4986-01 in the injector nut. Turn the reamer in a clockwise direction a

few turns, then remove the reamer and check the face of the seat for reamer contact over the

entire surface. Repeat the reaming procedure until the reamer makes contact with the entire

face of the seat.

(9) Wash injector nut in cleaning solvent (item 4, Appendix C) and allow to dry.

e. Inspection.

(1) Inspect the teeth on the control rack and gear for wear or damage. Check the gear bore for wear.

(2) Inspect the follower and stop pin for damage or wear.

(3) Inspect the spill deflector for damage or burrs.

(4) Inspect the springs for deformations or other damage.

(5) Inspect the injector body for loose pins and plugs. Check the interior for scratches, scuff marks,

or other damage.

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