HYDROK
Faults
106
Order h49 7144.907-333
13.2 Fault table
Fault
Possible cause
Remedial action
Remedied by
Defective axial
strokes in the
clamping device
Dirt in the compo-
nents in the power-
flow
Remove and clean the clamping
element and, if necessary, re-
move, dismantle and clean the
clamping device
Skilled special-
ist
Swapped over fluid
port
Check the fluid port and correct if
necessary
Hydraulic/pneu-
matic specialist
Seals worn
Check fluid pressure at the ports
and replace the seals if necessary
Hydraulic/pneu-
matic specialist
Clamping element
cannot be
swapped in or out
Incorrect axial
strokes in the
clamping device
See »Incorrect axial strokes in the
clamping device« fault
Clamping force is
too weak
Workpiece outside
the diameter
clamping width
Use a suitable clamping element
Skilled special-
ist
Supply pressure
too low
Check machine setting and cor-
rect if necessary
Seals worn
Check fluid pressure at the ports
and replace the seals if necessary
Hydraulic/pneu-
matic specialist
Incorrect lubrica-
tion condition
Check lubrication of the clamping
device and correct if necessary
Skilled special-
ist
Clamping force is
too high
Supply pressure is
too high
Check machine setting and cor-
rect if necessary
Skilled special-
ist
Fluid loss
Seals are worn
Replace the gasket kit [see
»Scheduled maintenance« chap-
ter]
Hydraulic/pneu-
matic specialist
Defective fluid port
Check clamping device port and
replace if necessary
Hydraulic/pneu-
matic specialist
Check machine port and replace if
necessary
Machine manu-
facturer
Geometry devia-
tion on the work-
piece
Axial run-out error
on the clamping
device
Check axial run-out on the clamp-
ing device and correct if neces-
sary
Skilled special-
ist
Face run-out error
on the clamping
device
Check the face run-out and clean
the mating surfaces if necessary
