Maintenance Procedure B
Replacing the Intensifier High-Pressure Seal
Service notes
Flow recommends that all high-pressure seals on the in
-
tensifier be serviced at the same time. This will help
prevent unnecessary downtime.
Tools required
1 in. open-end wrench
7
8
in. open-end wrench
13
16
in. open-end wrench
Flat-head screwdriver
Service steps
1. Shut down the system.
WARNING
Place the main electrical disconnect in the OFF
position and bleed down the high-pressure lines.
Place an “Out of Service” tag on the main electrical
disconnect and lock it out. Failure to do so can cause
equipment damage or injury to personnel.
2. Disconnect the inlet water hose from the end cap.
3. Using two wrenches, disconnect the high-pressure
tubing from the check valve outlet adapter. Loosen
the other end of the tubing and move it out of the
way.
4. Unload the intensifier tie rods.
•
See Maintenance Procedure A, Disassembling
the Intensifier
5. Note the orientation of the check valve body by ob
-
serving the position of the eccentrically positioned
outlet body relative to the intensifier. This is impor
-
tant when reinstalling the check valve body—correct
orientation is critical to ensure the correct fit of
high-pressure tubing, which is affected by the eccen
-
tricity of the outlet body.
Note: The check valve body is usually positioned
with the outlet body away from the intensifier mani
-
fold block, but this may vary on some intensifiers.
Check valve orientation of both the long-block and
short-block intensifiers is shown on the next page.
© Flow International Corporation M-376 | 23
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