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13 Manual override
The combi switchbox has a manual override which enables
manual operation of the process valve.
3
Activating the manual override:
Use a flathead screwdriver (maximum slot width of 6 mm) to
screw in the manual override screw 3 clockwise as far as it
will go.
Deactivating the manual override:
Use a flathead screwdriver (maximum slot width of 6 mm) to
unscrew the manual override screw 3 anticlockwise as far as
it will go.
▶ Control air and the minimum pressure must be available
to use the manual override.
14 Troubleshooting
Error
Error cause
No stroke
No mounting kit
available
Process valve
faulty
Wrong mounting kit
installed
No feedback
Incorrect assembly Check assembly,
Switch not set
Wrong mounting kit
installed
Voltage is not con-
nected
Cover cannot be at-
Sealing ring inser-
tached
ted incorrectly
Sealing ring dam-
aged
Cables protruding
over the edge of the
base
www.gemu-group.com
NOTICE
Troubleshooting
Check mounting kit
Replace process
valve
Replace mounting
kit
wiring and connec-
tion
Set switch
Replace mounting
kit
Connect voltage
Insert sealing ring
correctly
Replace sealing
ring
Check the cable
routing and shorten
the cables if neces-
sary
15 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
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 plant or plant component against recommission-
ing.
5. Depressurize the plant or plant component.
6. Actuate products which are always in the same position
four times a year.
7. Carry out inspection and maintenance for products in the
potentially explosive area to DIN EN 60079-17.
15.1 Spare parts
No spare parts are available for this product. If it is faulty,
please return it to GEMÜ for repair.
15.2 Cleaning the product
Danger of explosion
▶ Risk of death or severe injury.
●
- Do not clean the product with a high pressure cleaning
device.
19 / 22
15 Inspection and maintenance
NOTICE
DANGER
Danger from sparking. Only clean the
product with an anti-static or damp
cloth.
GEMÜ 4241
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