GEM 225 DN 10, Operating Instructions Manual

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12 Operation
12.1 Normal operation
During normal operation there is no need for adjustments at
the valve.
12.2 Emergency operation via manual override
NOTICE
Manual override
▶
Only actuate the manual override in case of malfunction
(currentless)!
1
2
The solenoid valve is equipped with a manual override
1
and
an optical position indicator
2
.
Open the valve via manual override (currentless)
1. Turn the lever upwards.
ð The indicator of the optical position indicator moves away
from the valve actuator.
Close the valve via manual override (currentless)
2. Turn the lever downwards.
ð The indicator of the optical position indicator moves to-
wards the valve actuator.
13 Inspection and maintenance
WARNING
The equipment is subject to pressure!
▶
Risk of severe injury or death.
●
Depressurize the plant.
●
Completely drain the plant.
CAUTION
Use of incorrect spare parts!
▶ Damage to the GEMÜ product.
▶ Manufacturer liability and guarantee will be void.
●
Use only genuine parts from GEMÜ.
CAUTION
Hot plant components!
▶
Risk of burns.
●
Only work on plant that has cooled
down.
NOTICE
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
position four times a year.
13 Inspection and maintenance