Burkert Type 2300 - Manual (Page 29)

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Maintenance, cleaning
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!
• Maintenance may be performed by authorised technicians only!
• To screw on or unscrew valve body or actuator, use an open-
end wrench, never a pipe wrench, and observe tightening
torques.
Risk of injury from unintentional activation of the system and
an uncontrolled restart!
• Secure system from unintentional activation.
• Following maintenance, ensure a controlled restart.
WARNING!
For control function I – Danger if pilot pressure fails!
For control function I control and resetting occur pneumatically.
If the pressure fails, no defined position is reached.
• To ensure a controlled restart, first pressurize the device with
pilot pressure, then switch on the medium.
Risk of injury from moving parts in the device!
• Do not reach into openings.
10.2. Maintenance work
Actuator:
The actuator of the angle-seat control valve is maintenance-free
provided it is used according to these operating instructions.
Wearing parts of the angle-seat control valve:
Parts which are subject to natural wear:
• Valve seat
• Control cone
• Seals
→
If leaks occur, replace the particular wearing part with an appro-
priate spare part.
(For spare-part sets see chapter entitled “12. Replacement
parts”).
The replacing of the wearing parts is described in chapter
“10.3. Replacing the wearing parts”.
english
Type 2300