Eliminating faults
Fault
Uneven movement of piston
Remedy
Uneven movement of piston
•
No lubrication
•
Restrictors not used correctly
•
Piston rod dirty
•
Not enough air
•
Not enough pressure
•
Piston seal or piston rod seal defective
•
Lubricate
•
If possible, restrict exhaust air
•
Clean, provide cover
•
Keep tubing short
•
Select suitable cross-sectional areas
•
Restrict exhaust
•
Select correct pressure
•
Keep pressure constant
•
Switch volume upstream
•
Replace wearing parts
Piston does not come into stroke
end position
•
Cylinder barrel damaged
•
Adjusting screw of end position cushioning
completely closed
•
Foreign matter in cylinder
•
Servicing required, contact Festo
•
Open adjusting screw
•
Remove, filter compressed air
Incorrect switching during
interrogation
•
Temperatures to high
•
Sensor fault
•
Cylinder fitted without solenoid
•
Observe permitted temperature range
•
See sensor instructions
•
Use cylinder with solenoid
Fig. 20
10
9902NH
D/GB 27
