24
Maintenance, cleaning
10
MAINTENANCE, CLEANING
10.1
Safety instructions
DANGER!
Risk of injury from high pressure in the system!
▶
Before loosening lines and valves, turn off the pressure and
vent the lines.
Risk of injury from electric shock!
▶
Before reaching into the system, switch off the power supply
and secure against reactivation!
▶
Observe the applicable accident prevention and safety regu
-
lations for electrical devices!
WARNING!
Risk of injury due to improper maintenance work!
▶
Maintenance may be carried out by authorised technicians
only!
▶
Use an open-end wrench, never a pipe wrench, to screw the
valve body or actuator in or out, and observe the tightening
torque.
Risk of injury due to unintentional activation of the system
and uncontrolled restart!
▶
Secure the system against unintentional activation.
▶
Following maintenance, ensure a controlled restart.
WARNING!
For control function I – risk of pilot pressure failure!
With control function I, the control unit and reset are pneu
-
matic. No defined position is reached during a pressure failure.
▶
To ensure a controlled restart of the device, first apply pilot
pressure and then activate the medium.
Risk of injury due to moving parts in the device!
▶
Do not reach into openings.
10.2
Maintenance work
Actuator:
When used in accordance with these operating instructions, the
actuator of the globe valve is maintenance-free.
Wearing parts of the globe valve:
Parts which are subject to natural wear are:
•
Seals
•
Swivel plate
→
If there is a leak, replace the respective wearing part with a
corresponding spare part. (For spare part sets and assembly
tools see chapter „12 Spare parts“).
Replacement of the wearing parts is described in chapter
.
Type 2101
English