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Festo 7ADN-KP_ADN-ELa_en
Unlocking the end-position locking
•
Unscrew the locking cylinder from the relevant cover and remove the spacer
ring (only ADN-20 / 25-…-EL)
•
or manually unlock the end-position locking:
– Insert a screw (see table) into the bolt through the opening 1 of the
locking cylinder 2.
ADN-…-EL
20 / 25
32 / 40
50 / 63
80 / 100
Screw (minimum length)
M2x30
M2x30
M3x40
M3x50
Tensile force
[N]
4
4
10
25
Stroke
[mm]
2.7
3.5
4.7
6
– Pull out the screw
1
and the bolt. The piston rod is now unlocked.
When the screw is released, the bolt returns to the locked starting
position.
–
To permanently unlock, fix the bolt in the unlocked position by means
of a screw and a lock nut
3
. Only this combination will ensure that the
lock is fully unlocked.
2
3
1
2
3
1
• Loosen the flange screws or socket head screws (only ADN-80 / 100-…-EL) in
the bearing and end caps and remove them.
•
Remove the bearing and end caps from the cylinder barrel and piston rod.
•
Only ADN-20 / 25-…-ELB / ELV
– Pull the intermediate cap away from the cylinder barrel and piston rod.
•
Remove any residue of the screw locking agent from the threads of the
screws.
•
Pull the cylinder barrel from the piston rod.
•
Remove any residue of the screw locking agent from the threads of the
screws.
6.3
Replacing the piston components
•
Pull the piston rod out of the cylinder barrel.
•
Check the cylinder barrel and piston rod for damage.
The entire cylinder must be replaced if the cylinder barrel (particularly the
bearing surface) is showing significant damage.
•
Unscrew the threaded coupling from the piston rod.
•
Only ADN-32 / 40 /50 /63 /80 /100-…-ELV
– Remove the hex nut and washer from the piston rod.
•
Remove the piston components from the piston rod, noting the order and
orientation.
•
Remove any residue of the screw locking agent from the threads of the
piston rod and hex nut.
•
Replace the components with those included in the set of wearing parts and
reassemble the piston components on the piston rod in the correct order.
