Troubleshooting; Spare Parts List - SMC Networks IL220 Series Operation Manual

9. Troubleshooting

! !
Warning
Stop using the product if failures are not improved.
Failures
Excess flow from exhaust
port
Air is not exhausted from
exhaust port
Reducing the set pressure
less than the signal pressure,
doesn't switch the air circuit.
Raising the set pressure
higher than the
pressure doesn't switch the
air circuit.
IN1 and IN2 allow
simultaneously.

10. Spare Parts List

Part number
29030 1
29038
29063#1
JIS B 2401, P3
JIS B 2401, P7
JIS B 2401, P10
JIS B 2401, P34
Causes
Dust and carbon adhere to
seating part of exhaust port of
diaphragm Ass'y.
Breakage of diaphragm Ass'y. Replace diaphragm Ass'y.
Exhaust port of diaphragm
Ass'y is closed.
Exhaust port of diaphragm
Ass'y is closed.
Filter for signal pressure is
clogged up.
signal
Diaphragm Ass'y is broken.
air Dust or carbon is adhered to
rubber sheet of valve.
Part name
Diaphragm Ass'y
Diaphragm
Valve
"O" ring
"O" ring
"O" ring
"O" ring
Countermeasures
Disassembling cleaning
(Change diaphragm Ass'y if there
is a flaw on seating part of
exhaust port.)
Disassembling cleaning
(Change diaphragm Ass'y if there
is a flaw.)
Disassembling cleaning
(Change diaphragm Ass'y if there
is a flaw.)
Replace filter.
Change diaphragm Ass'y.
Disassembling cleaning
(Change rubber sheet of valve if
there is a flaw.)
Material
NBR
NBR
NBR
NBR
NBR
NBR
NBR
-9-
Quantity
1
1
1
2
1
1
1