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GEMÜ GDR/GSR
17 Inspection/maintenance
17 Inspection/maintenance
CAUTION
Hot plant components!
▶
Risk of burns.
●
Only work on plant that has cooled
down.
CAUTION
●
Servicing and maintenance work must only be performed
by trained personnel.
●
GEMÜ shall assume no liability whatsoever for damages
caused by improper handling or third-party actions.
●
In case of doubt, contact GEMÜ prior to commissioning.
The operator must carry out regular visual examination of the
products depending on the operating conditions and the po-
tential danger in order to prevent leakage and damage.
1. Have servicing and maintenance work performed by
trained personnel.
2. Wear appropriate protective gear as specified in plant op-
erator's guidelines.
3. Shut off plant or plant component.
4. Secure the plant or plant component against recommis-
sioning.
5. Depressurize the plant or plant component.
6. Actuate products which are always in the same position
four times a year.
17.1 General information regarding actuator
replacement
NOTICE
The following tools are required for actuator replacement:
●
Allen key
NOTICE
▶
For flanged bodies, the hand lever is fitted offset by 90°.
17.1.1 Replacing the actuator
1. Depressurize the control medium.
2. Unscrew the control medium line(s) on the actuator.
17.1.1.1 Removing the actuator
A
31
32
30
1. Remove the protective caps
30
.
2. Unscrew the hexagon screws
32
.
3. Do not lose the washers
31
.
4. The actuator
A
can be removed from the butterfly valve
body/ball valve body.
17.1.1.2 Mounting the actuator
A
31
32
30
1. Push the new actuator
A
onto the butterfly valve body/ball
valve body.
2. Turn the actuator until the hexagon screws
32
can be in-
serted.
3. Screw in the hexagon screws
32
with their washers
31
again until hand tight.
4. Diagonally tighten the hexagon screws
32
evenly until they
are hand tight.
5. Put the protective caps
30
back on.
