TM 55-1925-282-14&P
0026 00
11. Grasp and pull the three plunger assemblies (figure 1, item 11) to remove them from the crankcase (figure 1,
item 9).
12. Disassemble each plunger assembly as follows:
a. Remove the plunger retaining nut (figure 1, item 12) and washer (figure 1, item 13).
b. Discard the washer (figure 1, item 13).
c.
Twist the ceramic plunger (figure 1, item 14) either direction, and remove it from the plunger rod
(figure 1, item 15) by pulling it straight off.
d. Discard the plunger (figure 1, item 14).
e. Remove and discard the plunger O-ring (figure 1, item 16) and anti-extrusion ring (figure 1, item 17).
WARNING
Do not allow hydraulic fluid, engine oil, or cleaning solvents to come in contact
with unprotected skin or eyes. Prolonged skin contact can cause illness or injury.
Eye contact can cause serious injury. Always wear chemical protective gloves
and goggles when handling hydraulic fluid, engine oil, and cleaning solvents.
Failure to follow these precautions can result in illness or serious injury.
Isopropyl alcohol is flammable and its vapor is potentially explosive. Do not use
cleaning solvent in the vicinity of spark, open flame, or excessive heat. Do not
use cleaning solvent in unventilated spaces. Failure to follow these precautions
can result in death or serious injury.
13. Clean the slingers (figure 1, item 18), wrist pins (figure 1, item 19), and plunger rods (figure 1, item 15) with
isopropyl alcohol and rags. Inspect for signs of damage and wear, and set aside.
14. Clean the three plunger bores (figure 1, item 20) inside the crankcase (figure 1, item 9) with rags and isopro-
pyl alcohol, and inspect for signs of rust and damage.
15. Clean the six valve oil seal cavities (figure 1, item 21) inside the manifold (figure 1, item 7) with isopropyl
alcohol and rags, and inspect for damage, erosion, or etching.
ASSEMBLY
NOTE
Ensure that the seal cavities are dry. Use no lubricant to install the plunger oil seals.
1. Assemble the plungers as follows:
a. Install the new anti-extrusion ring (figure 1, item 17) on the plunger rod (figure 1, item 15).
b. Lubricate the new plunger O-ring (figure 1, item 16) with silicone lubricant, and install it on the plunger rod
(figure 1, item 15).
0026 00-3