TM 10-4610-310-14
0125 00
SERVICING PLUNGERS - continued
8. Install keyhole washer (21) over each plunger rod (18) with split ends facing downward.
9. Apply Locktite-242 to exposed threads of plunger retainer (24).
10. Thread plunger retainer (24) into plunger rod (18). Tighten hand tight.
11. Torque plunger retainer 4.4 foot-pounds (6 N m).
12. Install seal retainers (25) with the holes to the top and bottom, and small tabs facing downward over each
plunger rod (18).
13. Examine inlet valve adapters (32) and discharge valve adapters (35) for scale build-up and wear. Replace as
needed.
14. Examine spacer O-rings (34) on the discharge valve adapter (35) for cuts and deterioration. Replace as
needed.
15. Examine inner and outer adapter O-rings (31, 34) on the inlet valve adapter (32) for cuts and deterioration.
Replace as needed.
16. Carefully press discharge valve adapter (32) into each discharge valve chamber in discharge manifold (41)
with small diameter side down until adapter snaps tightly into position.
17. Carefully press inlet valve adapter (32) into each inlet valve chamber in discharge manifold (41) with small
diameter side down until adapter snaps tightly into position.
18. Rotate crankshaft (7) by hand so the two outside plungers (22) are extended equally.
19. Lightly lubricate three ceramic plungers (22) with Glycerin to assist in installing the inlet manifold (27).
20. Position inlet manifold (27) over ceramic plungers (22).
21. Apply Locktite-242 to four screw (28) threads.
22. Install four screws (28) through inlet manifold (27) into crankcase (16). Tighten hand tight.
23. Torque four screws 9.4 foot-pounds (12.7 N m) in cross pattern sequence.
24. Position discharge manifold (41) over ceramic plunger (22) ends. Align exposed discharge valve adapters
(35) with inlet manifold (27) chambers. Press into position.
25. Tap with a leather or rubber mallet until inlet and discharge manifolds are flush.
26. Place six lock washers (43) on two screws (44) and four screws (45).
27. Apply antiseize compound to screw threads.
28. Install two screws (44) and four screws (45) through discharge manifold (41) into inlet manifold (27). Tighten
hand tight.
29. Torque six screws 12 foot-pounds (16.3 Nm) in cross pattern sequence
SERVICING CRANKCASE SECTION
1. While inlet and discharge manifolds (27, 41), plungers (22), and seal retainers (25) are removed, examine
crankcase oil seals for leaking and wear.
2. Check for any signs of leaking at rear cover (14), drain plug (12), and bubble oil gauge (10). Replace as
needed.
3. Check oil for proper level and for evidence of water or other contaminants in oil. Clean as needed.
4. Rotate dual end crankshaft (7) by hand to feel for smooth bearing movement.
5. Examine crankshaft oil seal (19) externally for drying, cracking, or leaking. Replace as needed.
END OF WORK PACKAGE
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