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13 Inspection and maintenance
13 Inspection and maintenance
Exceptional maintenance work!
▶ Damage to the GEMÜ product.
Any maintenance work and repairs not described in these
●
operating instructions must not be performed without
consulting the manufacturer first.
The operator must carry out regular visual examination of the
GEMÜ products depending on the operating conditions and
the potential danger in order to prevent leakage and damage.
The product also must be disassembled and checked for
wear in the corresponding intervals.
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 plant or plant component against recommission-
ing.
5. Depressurize the plant or plant component.
6. Actuate GEMÜ products which are always in the same po-
sition four times a year.
13.1 Replacing the actuator
13.1.1 Remove the actuator from the distance piece.
The equipment is subject to pressure!
▶ Risk of severe injury or death.
Depressurize the plant.
●
Completely drain the plant.
●
Hot plant components!
▶ Risk of burns.
Only work on plant that has cooled
●
down.
Corrosive chemicals!
▶ Risk of caustic burns.
Wear suitable protective gear.
●
Completely drain the plant.
●
Use of incorrect spare parts!
▶ Damage to the GEMÜ product.
▶ Manufacturer liability and guarantee will be void.
Use only genuine parts from GEMÜ.
●
GEMÜ 567 BioStar control
NOTICE
WARNING
CAUTION
WARNING
CAUTION
Important:
▶ After disassembly, clean all parts of contamination. Take
care not to damage the parts in the process. Afterwards,
check parts for potential damage. If parts are damaged,
replace them.
Valve is no longer functioning correctly
▶ Damaged parts are reused.
Remove and clean all parts, check for damage and re-
●
place if necessary.
▶ The piping need not be drained when replacing the actu-
ator, as the valve spindle is sealed by the plug diaphragm.
A
18
17
16
1. Move the actuator A to the open position.
2. Undo the cap nuts 18 from the stud bolts 16.
3. Remove the washers 17.
4. Remove the actuator A from the distance piece 11.
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NOTICE
CAUTION
NOTICE
18
17
16
11
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