Section 9
High Pressure Water System
20412997
8-2012/Rev 12
9-15
Hard Seal End Cap Installation
7/8” Diameter Plunger 1-1/8” Diameter Plunger
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.
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 cap and push into
position.
2. Apply Pure Goop to the coned sealing
surface on the sealing head. Place the
sealing head in the end cap and push into
position.
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 HSEC. Install the
jackbolts, ensuring they are slightly less
than flush with the inner face of the end
cap.
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 HSEC. 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. Position the end cap on the high pressure
cylinder and 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.
4. Position the end cap on the high pressure
cylinder and 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
9-1.
8. Connect the high and low pressure water piping and turn the low pressure water supply
on.
9. Start the machine in low pressure mode to flush air from the high pressure components
and to check for obvious leaks. After 5-10 strokes, switch to high pressure operation and
check for leaks.
If leaks are detected, turn the machine off and remedy the problem. When the problem
has been remedied, repeat the start up procedure.
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