24. Lubricate inside and outside the hoop with white food grade
o-ring lube. Reassemble the sleeve guide and sleeve onto the
cylinder, place the hoop in the sleeve, and insert the hoop by
tapping the installation tool lightly with a mallet.
25. Place the flat end of the cylinder on the aluminum disk. Lightly
lubricate each end of the backup sleeve with white food grade
o-ring lube; insert the sleeve into the cylinder. Take care not to
damage parts or dislodge the seal and hoop.
•
Repeat Steps 21–25 to install the remaining seal assem-
bly into the recessed end of the cylinder.
26. Place the aluminum disk on the non-recessed end of the cylin-
der. Thread the sleeve guide over it onto the cylinder. The disk
prevents the seals, hoops, and sleeve from being dislodged
while installing the cylinder.
27. Slide the new seal ring onto the plunger. It
should fit tightly, but should slide along
the plunger with only slight, intermittent
resistance.
Note:
The seal ring is a wear item and
must be replaced at every seal change.
28. Coat the plunger evenly with a thin layer
of white food grade o-ring lube.
29. Coat the threads of the end bell with a
thin layer of Blue Lubricant. Carefully
slide the cylinder onto the plunger until it
can be threaded into the end bell.
Notes:
•
If the plunger has been fully re-
tracted, the plunger will not contact
the seal until the cylinder has been
partially threaded onto the end bell.
This will make installation easier.
•
Thread the cylinder on until hand
tight. The cylinder should thread on
easily and stop firmly. If you can
turn the cylinder another
1
8
turn or
more beyond full thread
engagement, the hoop could be dis-
lodged. Remove the cylinder and
check for problems.
•
The high-pressure seals are fully
functional at a torque value only
slightly more than hand tight.
Torquing the cylinder to a value
greater than 120 ft-lb (88 N-m) is
unnecessary and makes disassembly
more difficult.
•
Never use a girth wrench for instal-
lation.
18 | M-310
© Flow International Corporation
ESL Intensifier
