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EN
12 Fault finding OSPP-Classic and OSPP-Classic-KF
12.1 Defect diagnosis
Defect
Cause
Correction
Cylinder leaks somewhere along inner
sealing band.
Inner sealing band dirty.
Clean inner sealing band.
Cylinder leaks in piston area.
Piston seal defective.
Replace piston seal.
Cylinder leaks at end cap.
O-ring defective.
Replace O-ring.
Piston moves slowly or jerkily.
Contamination by air or abrasion.
Dismantle cylinder completely,
clean and regrease.
Replace war parts.
Poor lubrication.
Defective piston seal.
Speed set too slow.
Increase speed.
Operating pressure below 2 bar.
Check operating pressure.
Standard grease in cylinder, with
speed v < 0.2 m/s
Use slow speed grease, for
speed v < 0.2 m/s.
Piston does not reach end position.
Cushioning adjustment screwed right in.
Adjust cushioning adjustment screw.
Piston impacts too hard at one or both end
positions.
Wrong setting of end cushioning.
Adjust cushioning adjustment screw.
Possibly overload.
Provide additional shock absorber.
Cushioning seal, O-rings on end cap /
cushioning spigot, piston seal or inner
sealing band defective.
Check parts and replace if necessary.
Sensors do not work properly.
Ferritic parts too close to sensors.
Use parts made made of non-magnetic.
Sensors defective.
Replace sensors.
Increasing noise produced by the guides
(OSPP-Classic-KF).
Carriage defective.
Replace guide rail, replace carriage.
