DHTG
10
Accessories
Note
• Please select the appropriate accessories from our catalogue
www.festo.com/catalogue
11
Troubleshooting
Malfunction
Rotating plate does not
move
Rotating plate does not
engage
Hard metal impact at
the end position
Hard metallic knocking
in the locking
mechanism
Plate position incorrect Overload protection engaged
Tab. 18
34
Possible cause
Overload protection is active
Audible leakage
Flow-control screw closed
completely
End position not reached
Overload protection is active
Toothed disc and pinion stand tooth
on tooth
Adjusting screw for shock absorber
unscrewed too far
Shock absorber defective
Adjusting screw for shock absorber
screwed in too far (e. g. when
changing the direction of rotation)
incorrectly at 180° (plate offset 30°)
Remedy
Pressurise connection (B) and turn
the plate back against the direction
of rotation as far as possible. Doing
this causes the overload protection
and the locking mechanism, if
applicable, to engage audibly
Send DHTG to Festo
Open screw
Unscrew the adjusting screw for the
shock absorber until the rotating
plate engages
see above
Please contact Festo's Technical
Hotline
Screw in adjusting screw
Replace shock absorber
(
9 Dismantling and repairs)
Unscrew adjusting screw
Force overload protection and turn
until it re-engages
Festo – DHTG – 1303c English