Section 8
High Pressure Water System
20479291
2-2012/Rev 04
8-12
2. Disconnect the high and low pressure water piping, following the procedure, High and
Low Pressure Water Piping.
3. Loosen the jackbolts in the hard seal end cap.
4. Unscrew and remove the HSEC from the high pressure cylinder.
5. Remove the sealing head. The sealing head may be removed with the HSEC or after the
end cap has been removed.
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.
2. Apply Pure Goop to the coned sealing surface on the sealing head. Place the sealing head
in the end of the high pressure cylinder and press the sealing head into the cylinder by
hand.
3. Apply JL-M grease to the full length of the threads and to the ends of the jackbolts. Apply
JL-M grease to the internal threads in the hard seal end cap. Install the jackbolts, ensuring
they are slightly less than flush with the inner face of the end cap.
Make sure the JL-M lube is well mixed and not dried up due to age.
4. 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.
5. 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.
6. Hand-tighten the jackbolts until they make contact with the sealing head.
7. Tighten the jackbolts following the tightening sequence and torque specifications in Table
8-1.
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