ARMY TM 9-2815-254-24
AIR FORCE TO 38G1-94-2
FIGURE 3-18. Checking Plunger and Barrel Movement
Inspect delivery valve (35, FIGURE 3-8) piston and seat for nicks, dents, and excessive wear. lf any signs
of damage are evident, replace entire delivery valve assembly.
d. Holding delivery valve seat, close port with finger tip. Push valve into seat and check that it is returned (by
the air inside) when released, refer to FIGURE 3-19. If valve is not returned, then fit of piston in bore is too
loose (due to wear) to justify reuse of this delivery valve assembly. Replace the entire delivery valve assembly.
e. Check that control rack (39, FIGURE 3-8) is not bent. If bent, replace control rack.
FIGURE 3-19. Delivery Valve