Afag DG 20, Maintenance Instructions Manual, Page: 29 / 36

DG 20 - OI vers. 1.4 gb. 20190712 29
Fault Possible cause Fault clearance
Rotary head does not turn in
the end position Useful load too high Reduce useful load
Pressure too low Increase pressure to max. 8 bar
Module wrongly connected Check pneumatic connection
Module defective Return module to Afag
Gripper jaws do not move to
the end position Useful load too high Reduce useful load
Pressure too low Increase pressure to max. 8 bar
Module wrongly connected Check pneumatic connection
Module defective Return module to Afag
Air escapes from module Compressed air connection
leaky Check seals of all air connections
and retighten if necessary
Cylinder leaky Return module to Afag
End position signal not clear-
ly present Wrong adjustment of limit stop Readjust limit stop
Initiator faulty Replace initiator
Sensor cable broken Replace initiator cable
Initiator not correctly posi-
tioned Correct initiator position
Initiator not correctly taught Re-teach initiator
End position signal is not
clearly present Disturbance due to steelpin
screws In the rear module section, re-
place the steel-pin screws M3 x 5
through the brass stud bolts (in-
cluded in the accessory kit)
Table 4: Faults, causes, fault clearanc
In case of sensor faults, in the
rear area of the module, the
steel-pin screws can be op-
tionally replaced through the
M3 x 5 brass screws (included
in the accessory kit)