10.3.1. Removal procedure
If the actuator has to be removed for maintenance, first
remove the actuator from the fitting.
NOTE!
Before removal, ensure that:
• The actuator is not under pressure and that the springs are in
the end position,
• The connections 2 and 4 are not under pressure and are free
from any accessories or devices.
If the actuator is single-acting, ensure that:
• The actuator is in the home position and that the pistons are all
the way in.
Removing position indicator and graduated ring (Pos. 19, 19.0,
19.1):
19
Fig. 7:
Removing position indicator
18
39
english
Type 2051
Maintenance,Troubleshooting
→
Remove screw (Pos. 39) if fitted,
→
Remove position indicator (Pos. 19 or 19.1) from shaft end. If
required, use a screwdriver as a lever,
→
Remove graduated ring (Pos. 19.0) from housing. If required, use
a screwdriver as a lever.
Removing the adjusting screws (Pos. 02):
Fig. 8:
Removing the adjusting screws
→
Remove adjusting screws together with nuts (Pos. 04) and washers
(Pos. 03),
→
Remove seals (Pos. 11) from the adjusting screws and dispose of
(if all sealing rings are replaced).
02