Replace The On/Off Valve Type 6757 - Burkert 8756 Batch Operating Instructions Manual

Type 8756 Batch
Maintenance
Flush the device.
Relieve the flushing fluid pressure in the installation.
De-energise the device.
Relieve the operating fluid pressure in the installation.
Unplug by hand the electrical cable from the on/off valve.
Dismantle the old valve from the device:
With an hexagon key of size 1.5 mm, loosen the 2 screws of the valve and remove the valve.
Mount the new valve:
Make sure that the base block is free of dirt.
Make sure that the seal is correctly inserted.
Fig. 17: Mount an on/off valve Type 6724
1 Cable
3 Base block
Turn the valve so that the "NC" marking is close to the device housing. Put the valve on the base block.
Tighten the screws to a torque of 0.2...0.25 Nm, that is 0.15...0.18 lbf.ft.
Plug the electrical cable to the on/off valve.
9.4

Replace the on/off valve Type 6757

Prepare the device for the replacement of the on/off valve:
Flush the device.
Relieve the flushing fluid pressure in the installation.
De-energise the device.
Relieve the operating fluid pressure in the installation.
Unplug by hand the electrical cable from the on/off valve.
Dismantle the old valve from the device:
With an hexagon key of size 2.5 mm, loosen the 2 screws of the valve and remove the valve.
Mount the new valve:
Make sure that the base block is free of dirt.
1
2
3
2 "NC" marking
51