Kitagawa NPGT, Инструкция по эксплуатации, Страница: 27 / 28

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8. Troubleshooting
8-1. Problems and countermeasures
Check the following, and take corrective actions.
Symptom Cause Corrective actions
Gripper does not
operate
Gripper internal part is broken. Replace the gripper with a new one.
Slideways get seized.
Disassemble, and correct the seized part with an oilstone,
or replace the gripper with a new one.
The piston does not operate.
Check that the air pressure is within the operating pressure
range.
Check for air leakage.
Check the piping and solenoid valve, and if normal,
disassemble and clean the cylinder.
The switch is faulty or installed
incorrectly.
Check that the switch can detect normally.
Lack of master
jaw stroke
Much dust exists in master
jaws.
Disassemble the gripper, clean it, replace the seals, and
apply grease.
Low gripping
force
Low air pressure
Check that the air pressure is within the operating pressure
range.
Air leaks from the seal.
Disassemble the gripper, clean it, replace the seals, and
apply grease.
Master jaw movements are not
smooth.
Remove the cover and supply grease, and open and close
the master jaws several times without gripping any
conveyed workpiece.
Disassemble the gripper, clean it, and apply grease.
●
If the gripper failed due to a seizure or damage, disassemble the gripper
following the disassembly procedure. If the gripper is in the state that you
cannot disassemble, do not disassemble it forcibly but please contact us or
our agents.
●
Stop using the gripper immediately if the situations are not improved though
corrective actions given in above table were taken. Continuous use of faulty
product or part could cause serious human accidents due to flying gripper or
conveyed workpiece.
●
The gripper must be repaired only by skilled persons who have received the
training course. Repair by unskilled persons or persons other than us or our
agents could cause serious human accidents.
8-2. Contact address in case of trouble
Please get in touch with our sales agent from which you purchased the gripper or our
office when the gripper troubled.