Section 8
High Pressure Water System
20425618
5-2005/Rev 0
8-15
not, it must be removed from the cylinder bore prior to reinstalling the sealing head to
avoid pushing it farther into the bore.
Figure 8-8: Hard Seal End Cap
Hard Seal End Cap Installation
1. Apply FML-2 grease to the two o-rings and verify they are properly installed in the inside
diameter grooves of the HSEC. Check the high pressure cylinder bore to verify the
presence of the cylinder liner and to ensure the old seal spacer has been removed from the
bore.
2. Apply FML-2 grease to the inside and outside diameter of the seal spacer and position the
spacer on the inlet end of the sealing head.
3. Place the sealing head and the spacer in the end of the high pressure cylinder and press the
sealing head into the cylinder by hand.
4. Apply JL-M grease to the threads on the jackbolts. Ensure the jackbolts are slightly less
than flush with the inner face of the end cap.
5. Slide the end cap over the sealing head until it makes contact with the sealing head. Fully
engage the threads on the end cap with the high pressure cylinder. The cone seal on the
sealing head should be in contact with the cylinder.
6. Unscrew the HSEC until the inlet water port is properly oriented to facilitate the low
pressure water connection. Do not unscrew the HSEC more than one full turn.
7. Hand-tighten the jackbolts until they make contact with the sealing head.
8. Tighten the jackbolts following the tightening sequence and torque specifications in Table
8-1.
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