Troubleshooting; Maintenance - GOK FST3.1VK Montage- Und Bedienungsanleitung

Before loosening the sealing nut
This must be tightly closed by hand!
• Loosen the sealing nut
connection for tank testing. The connection
is an M 20 x 1.5 thread.
• When loosening the sealing nut
size 17 open-end wrench against the test
connection housing to stop the test
connection from opening.

TROUBLESHOOTING

Fault cause
Gas smell
Leaking LPG is extremely
flammable.
Can cause explosions.
No gas flow.
Pressure gauge indicates
incorrect values or is not
working at all
Road tanker does not
provide approval.

MAINTENANCE

An annual function check is recommended; this check can be performed while filling the LPG
tank in combination with the limit indicator and the overfill prevention device on the road
tanker. The overfill prevention device must be removed for tank pressure testing with water. A
blind plug must be put into the opening. After tank testing, reinstall the overfill prevention
device properly.
10 / 16
FST3.1VK type compatible overfill prevention device
, check whether the shut-off device
at the test
, brace a
Action
 Close the gas supply.
 Do not use any electric switches.
 Do not use a phone in the building.
 Ventilate rooms well.
 Shut down the LPG system.
 Contact a specialised company.
Gas supply is closed:
 Open the gas cylinder valve or the shut-off fittings.
Pressure gauge is damaged:
 Replace only when the LPG system is completely
non-pressurised and neutralised!
 Check connector.
 Check cable or replace the limit indicator.
 MAINTAIN the sensor.
• Connect the test pressure gauge (as an
example) and open the shut-off device
with a screwdriver (remove the plastic cap
first).
• Carry out leak testing.
• Then close the shut-off device
remove the test pressure gauge and close
the sealing nut
tighten firmly by hand.
Check all of the connections
•
for leak-tightness!
• Open the shut-off device
screwdriver.
is closed.
again,
on the test connection,
again with a
Part no. 55 270 52