Eliminating Faults - Festo DFST Serie Instrucciones De Utilizacion

DFST
10

Eliminating faults

Fault
Guide rod worn
on one side
Hard impact on
the toggle lever
Piston rod in
basic position
despite despite
pressurization
Toggle lever
does not reach
end position end position
Fig. 27
Festo DFST 0710NH
Possible cause
Medium stream
approaches toggle lever
at an angle
Cushioning incorrectly
set
Conveying speed too high Reduce speed
Shock absorber defective
Pipe connection error
Reduced flow through
angled screw connectors
Cushioning incorrectly
set
Material stream mass
(pressure force) too low
Remedy
Align stopper cylinder in transport
direction, medium stream must impact
toggle lever in a vertical position
(è Installation)
Correct cushioning (è Commissioning)
Replace shock absorber (è Spare
parts catalogue, www.festo.com)
Check blanking plug
Checking the pneumatic tubing
Avoid angled screw connectors
Correct cushioning (è Commissioning)
Increase mass
Increase friction coefficient between
conveyor and material
Increase gradient of conveyor
25