Festo Пневматические линейные приводы SLG - Manual (Page 32)

SLG−...
Festo SLG−... 0802d English
32
10 Eliminating faults
Faults Possible cause Remedy
Irregular movement of
slide One−way flow control
valves not fitted correctly If possible restrict exhaust
Faults in position interĆ
rogation Ferritic parts near the
proximity switch Use parts made of non−magnetic
materials
Strong leakage Ĉ Cylinder fitted distorted
Ĉ Seals worn
Ĉ Seal band pressed/
sucked in
Ĉ Threaded pins not
sealed
Ĉ Fasten cylinder on flat base
Ĉ Replace worn parts
ć yourself with wearing parts
kit
ć send to Festo for repair
Ĉ 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)
Ĉ Avoid low pressure in the pisĆ
ton chamber (e.g. move the
pressureless slide only
slowly)
Ĉ Seal threaded pins in alternaĆ
tive connections
Slide unit does not
reach desired speed Ĉ Insufficient air volume
Ĉ High wear or counterĆ
acting force
Increase connection cross secĆ
tions.
Switch volume upstream.
Slide jams or has play Work load evenness not
OK Observe evenness of 0.1
Slide unit strikes
through the end posiĆ
tion (metal stop) Ĉ Too much force
Ĉ Cylinder overloaded
Ĉ Cushioning element not
OK
Ĉ Use YSRG
Ĉ Reduce speed
Ĉ Reduce work load
Ĉ Select next size
Ĉ New cushioning element reĆ
quired
Fig. 35