Malfunctions; Maintenance, Cleaning; Safety Instructions - Burkert 2730 Manuel D'utilisation

9

MALFUNCTIONS

Malfunction Cause /remedial action
Actuator does Pilot air port interchanged
not switch
CFA: Connecting lower pilot air port
CFB: Connecting upper pilot air port
Pilot pressure too low
See pressure specifications on the type label.
Medium pressure too high
See pressure specifications on the type label.
Valve is not Medium pressure too high
sealed See pressure specifications on the type label.
Pilot pressure too low
See pressure specifications on the type label.
Flow rate PTFE diaphragm bulging
→
reduced
Replace diaphragm.
Tab. 11: Malfunctions
see "Fig. 17: Pneumatic connection"
4)
22
4)
english
Type 2730 / 2731 / 2731K
Malfunctions
10 MAINTENANCE, CLEANING
10.1 Safety instructions
DANGER!
Danger – high pressure in the equipment!
▶ Before loosening the lines and valves, turn off the pressure and
vent the lines.
Risk of injury due to electrical shock!
▶ Before reaching into the system, switch off the power supply
and secure to prevent reactivation!
▶ Observe applicable accident prevention and safety regulations
for electrical equipment!
WARNING!
Risk of injury from improper maintenance!
▶ Installation may be carried out by authorized technicians only
and with the appropriate tools!
Risk of injury from unintentional activation of the system and
an uncontrolled restart!
▶ Secure system from unintentional activation.
▶ Following maintenance, ensure a controlled restart.