High-pressure water cylinder and seals
The intensifier requires no periodic maintenance.
However, when seals leak excessively or if you find a
stress fracture, repair the intensifier immediately. See
Intensifier weep hole identification
.
If you are servicing only the high-pressure water cylin-
der and related components, you can leave the intensi-
fier mounted in the pump frame. Keep the work area
clean and free of airborne fiber and dust.
Service steps
WARNING
Place the main electrical disconnect in the OFF
position and bleed down all 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.
1. Shut down the system.
2. Disconnect the supply water hose at the quick-
disconnect. Using two wrenches, disconnect the
high-pressure water line from the check valve outlet
body. Loosen the other end and move the tubing
out of the way.
CAUTION
Do not bend or flex the high-pressure
tubing—this can cause it to fail prematurely.
3. Note the orientation of the main check valve body,
then loosen the end cap by tapping the spanner
wrench with a mallet. If necessary, remove the cable
guide, then hold onto the high-pressure water cylin-
der with a strap or girth wrench.
CAUTION
DO NOT grip the cylinder with any sharp-toothed tool.
Surface scratches and gouges will lead to early part failure.
4. Unscrew the end cap from the cylinder by hand;
make sure the check valve assembly and the end
cap turn as an assembly.
CAUTION
If the check valve and end cap do not turn
together, the check valve body o-rings can
be damaged. If necessary, use a wrench.
14 | M-310
© Flow International Corporation
ESL Intensifier
