Troubleshooting - YAMADA KGK-400 Series Instruction

5. Troubleshooting

5-1 Troubleshooting (metered shot)
<Problem>
- Air leak occurs.
- Material leak occurs in air cylinder.
- Material still flows out after a
metered shot has been dispensed.
<Possible Cause>
① O ring is damaged or worn out.
② O ring is damaged or worn out or cylinder
inside is damaged.
③ Packing is damaged or worn out.
④ Piston rod is damaged.
⑤ Sleeve inside or valve is damaged
⑥ O ring is damaged or worn out.
⑦ O ring is damaged or worn out or cylinder
inside is damaged.
⑧ Valve or valve seat is not closed completed.
(Thin part of piston rod is deformed and rod
length has become shorter.)
- The life of a U-packing is reduced if the sleeve inside is severely damaged or clearance between the piston
and rod has become too much. At the time of replacing the U-packing, be sure to check the sleeve and
piston as well.
CAUTION
7
<Solution>
- Replace with a new one.
- Replace with a new one.
- Replace with a new one.
- Replace with a new one.
- Replace with a new one.
- Replace with a new one.
- Replace with a new one.
- Replace with a new one.