Eliminating Faults - Festo SLG-Série Notice D'utilisation

SLG−...
10

Eliminating faults

Faults
Irregular movement of
slide
Faults in position inter
rogation
Strong leakage
Slide unit does not
reach desired speed
Slide jams or has play
Slide unit strikes
through the end posi
tion (metal stop)
Fig. 35
32
Possible cause
One−way flow control
valves not fitted correctly
Ferritic parts near the
proximity switch
Cylinder fitted distorted
Seals worn
Seal band pressed/
sucked in
Threaded pins not
sealed
Insufficient air volume
High wear or counter
acting force
Work load evenness not
OK
Too much force
Cylinder overloaded
Cushioning element not
OK
Remedy
If possible restrict exhaust
Use parts made of non−magnetic
materials
Fasten cylinder on flat base
Replace worn parts
yourself with wearing parts
kit
send to Festo for repair
With pressureless linear drive
move the slide by hand twice
over the complete stroke (if
there are fixed stops push
these into the end position)
Avoid low pressure in the pis
ton chamber (e.g. move the
pressureless slide only
slowly)
Seal threaded pins in alterna
tive connections
Increase connection cross sec
tions.
Switch volume upstream.
Observe evenness of 0.1
Use YSRG
Reduce speed
Reduce work load
Select next size
New cushioning element re
quired
Festo SLG−... 0802d English