Burkert Type 2036 - Manual (Page 27)

27
Repairs
Type 2036
12. repairs
12.1. safety instructions
Danger!
risk of injury from high pressure in the equipment/device.
▶ Before working on equipment or device, switch off the pressure
and deaerate/drain lines.
risk of electric shock.
▶ Before reaching into the device, 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 repair.
▶ Installation must only be carried out by authorized technicians
and with the appropriate tools.
▶ Observe the tightening torques.
▶ On completion of the work check valve for leaks and function.
risk of injury from unintentional activation of the system and
uncontrolled restart.
▶ Secure system from unintentional activation.
▶ Following maintenance, ensure a controlled restart.
12.2. replacing the diaphragm
required spare part
• Diaphragm
12.2.1. Disassembly of the actuator and
diaphragm
→
Move the actuator to the upper actuator position (CFA, NC: by
applying pilot pressure; CFB, NO: by removing the pilot pressure).
→
Mark the position of the actuator in relation to the valve body.
→
Unscrew the four body screws that connect the valve body with
the actuator. Remove the valve body.
→
Move the actuator to the lower actuator position (CFA, NC: by
removing pilot pressure; CFB, NO: by applying the pilot pressure).
→
Unscrew guide pin all the way.
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