Flow 94K HYPERPRESSURE, Manual

Page: 33 / 82

Maintenance Procedure D1
Replacing the check valve body assembly
Service notes
Before performing this procedure, review Using the
Pressure Loading Tool to Assemble and Disassemble the
Intensifier.
Tools required
1 in. open-end wrench
7
8
in. open-end wrench
13
16
in. open-end wrench
1¼ in. socket (½ in. drive) and handle
Food grade grease (A-4689)
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. Using a 1¼ in. socket, loosen the outlet adapter
from the check valve body (do not remove it at this
point).
5. Unload the intensifier tie rods
•
See Maintenance Procedure A , Disassembling
the Intensifier
6. 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 | 33
CHAPTER 3
Maintenance Procedures