Maintenance, Troubleshooting; Ordering Spare Parts - Burkert 6516 Manuel D'utilisation

6.4 Connection of cable plug to the power
supply
WARNING
Risk of injury due to electrical shock!
▶ Before reaching into the system, switch off the electrical power
supply and secure to prevent reactivation!
▶ Observe applicable accident prevention and safety regulations for
electrical equipment!
If the protective conductor contact between the coil and housing is
missing, there is a danger of electric shock!
▶ Always connect protective conductor.
▶ Check electrical continuity between coil and housing.
Approved
cable plug
e.g. Type 2508
or other in accor-
dance with DIN
ISO 175301-803
shape A
Pesistor Test voltage
max. 0.1 Ω
Tab. 2: Test values protective conductor function
6.5 Pneumatic position indicator
Fig. 6: Pneumatic position indicator
When the valve is switched off, the red indicator pin can be pressed
in without any resistance. When the valve is actuated, the indicator pin
moves out and there is perceptible resistance to pressing it in.
NOTE!
Whenever performing a function test, press in the indicator pin again.
7 DISASSEMBLY
Disassembly is in reverse sequence to assembly.
12
8.2 Malfunctions
If malfunctions occur, check whether:
• the device has been installed according to the instructions,
• the electrical and pneumatic 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.
Valve does not switch
Possible causes:
• short circuit or coil interrupted,
• core or core area dirty,
• medium pressure outside the permitted pressure range.
Valve does not close
Possible causes:
• inner compartment of the valve is dirty.
Seal
Observe max.
tightening
torque!
Test current
12 V 1 A
Indicator pin (red)
english
→
Tighten cable plug (for authorized types see data sheet), observing
maximum torque (see "Tab. 1").
→
Check that seal is fitted correctly.
→
Connect protective conductor and check electrical continuity
between coil and housing (see "Tab. 2").
NOTE!
If the cable plug EN 175-301-803 is designed in such a way that
the screw is pointing upwards, insert a seal made of a material com-
patible with your process under the screw head.
Note the voltage and current type as specified on the type
label.
Valve type 6516/6517
Cable plug Type 2506
Tightening torque 0.3
max. (Nm)
Tab. 1: Maximum tightening torque of cable plug
english
8

MAINTENANCE, TROUBLESHOOTING

If the valve is used according to these operating instructions, the valve
will operate maintenance-free.
8.1 Safety instructions
WARNING!
Risk of injury from improper maintenance!
▶ Maintenance may only be carried out by authorized technicians
and with the appropriate tools!
Risk of injury due to electrical shock!
▶ Before reaching into the device or the equipment, switch off the
power supply and secure to prevent reactivation!
Danger – high pressure!
▶ Turn off the pressure and vent the lines before loosening lines or
valves.
Risk of injury from unintentional activation of the system and
uncontrolled restart!
▶ Secure system against unintentional activation.
▶ Following maintenance, ensure a controlled restart.
9 SPARE PARTS
CAUTION!
Risk of injury and/or damage by the use of incorrect parts!
Incorrect accessories and unsuitable spare parts may cause injuries
and damage the device and the surrounding area.
▶ Use original accessories and original spare parts from Bürkert only.

9.1 Ordering spare parts

When ordering spare parts, quote the number of the spare part set
(SET 1, SET 2, SET 3 – see "Fig. 7: Spare part sets", page 14) as
well as the order number of your complete device.
english
Type 6516-6519
6518/6519
2508
1
11
13