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■
EPDT-147b
■
8.Maintenance Procedure
8.1
Troubleshooting
Trouble condition
Cause of trouble
Countermeasure and
remedy
No fluid flows.
１．
Screen
③
is clogged up.
２．
Stop valves at inlet and/or
outlet side are shut.
１．
Disassemble and
clean the screen
③
.
２．
Open stops valves.
Pressure loss is
excessive.
１．
Screen
③
is clogged up.
２．
Pressure gauge is damaged.
１．
Disassemble and
clean the screen
③
.
２．
Renew the Pressure
gauge
Outer leakage
accure
１．
Gasket have deterioration.
１．
Replace the gasket.
8.2
Precautions during maintenance and inspection
Warning
(1)
Completely discharge internal pressure from the strainer, lines, and equipment,
and cool the strainer down to a level where you can touch it with bare hands
before disassembly and inspection.
※
Failure to do so may result in injury or burns due to residual pressure or
spillage around the product.
(2)
In case the high temperature of fluid is applied, keep the bare hand off the
strainer.
※
It may cause the personnel being scalded.
(3)
Since the screen is heavy in weight, when extracting the screen from the body,
make sure to secure it properly with lifting devices.
※
The screen fallen down may cause the injury.
8.3
Disassembly Procedure
(1)After confirming that the remaining pressure is relieved from the strainer, remove
the bolts
⑥
from the cover
②
and the gasket
④
, and remove the cover
②
from
the body
①
. Extract the screen
③
from the body
①
and clean it with compressed
air or cleanser.
