Maintenance, Troubleshooting - Burkert 6212 Manuel D'utilisation

8. mainTenance,
TrOubleshOOTing
8.1. safety instructions
Danger!
Risk of injury from high pressure in the equipment!
• Before loosening the pipes and valves, turn off the
pressure and vent the pipes.
Risk of injury due to electrical shock!
• Before reaching into the device or the equipment,
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 carried out by authorized techni-
cians 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.
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0.3 ± 0.05 Nm
Fig. 4: Installation of pilot valve
→
Attach pilot valve to Armature:
Tighten the screws with 0.2 ± 0.05 Nm.
Fig. 5: Protective conductor function
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8.2.
Escaping medium!
When a sticking screw is loosened, medium may escape.
•
Electric shock!
If the protective conductor is not connected, there is a
risk of electric shock!
•
switch
note!
If the tightening torque is too great, the device may
be damaged!
•
Device will be damaged if the wrong tools are used!
•
→
0.2 ± 0.05 Nm
8.3.
If malfunctions occur, check whether:
→
→
→
→
→
→
Valve does not switch
Possible cause:
•
•
•
installation of pilot valve
Warning!
Do not tighten sticking screws any further.
Check protective conductor contact after installing the
coil
Observe the maximum tightening torque of the screws!
Always use a right tools to tighten screws. If other
tools are used (e.g. pliers), the device may be
damaged.
Check functionality of the protective conductor
Resistance Test voltage
max. 0,1 Ω
12 V
malfunctions
the device has been installed according to the
instructions,
the electrical and fluid connections are correct,
the device is not damaged,
all screws have been tightened,
the voltage and pressure have been switched on,
the pipelines are clean.
Short-circuit or coil interrupted,
Internal space of the valve is dirty,
Medium pressure outside the permitted pressure range.
Type 6212
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Test current
1 A
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