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Cleaning VTK - TR -BA- 171e - 1 - User Manua l MDS 3080 -V 135 9.4.3 D isassembling of th e V al v e C AUTI O N No dispe nsing mediu m residues Before dem ounti n g the f luid box from the v alve, m ake sure t hat no dis…
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VTK-TR-BA-171e-1 - User Manual MDS 3080-V
Step 4:
– Reinstall the compressed-air connection as follows.
– Place the PP adapter fitting on the cartridge. Rotate clockwise, until it latches in place.
– Connect the PVC hose with the KS4-CK-6 coupler plug to a compressed-air supply. For this
purpose, you require a KD4-1/2-A coupler socket.
– Activate the compressed-air supply.
Step 5:
– Place a container underneath the valve, to collect any liquid dripping out. The container
needs sufficient capacity to contain the purifying agent together with the solved residual
liquid.
Step 6:
– Initiate the purging procedure by pressing [F1].
– Keep the [F1]-key pressed until the procedure is complete and no more liquid flows out
through the nozzle unit.
INFORMATION
Automatic closing
After ca. 2 min the valve closes automatically, in order to protect the actuator.
Alternatively, the procedure can be performed by the RS-232C interface. Use the commands
VALVE:UP and VALVE:DOWN for this purpose.
Step 7:
– Separate the compressed-air connection and remove the cartridge.
Step 8:
– Make sure the collected liquid in the container is disposed of according to local regulation.
Cleaning
VTK-TR-BA-171e-1 - User Manual MDS 3080-V
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9.4.3 Disassembling of the Valve
CAUTION
No dispensing medium residues
Before demounting the fluid box from the valve, make sure that no dispensing medium is left
inside the system.
Preliminary steps:
– The dispensing process must be completed. The valve is in closed position.
– Deactivate the compressed air supply and remove the Adapter for Compressed Air.
– Switch OFF the control unit and disconnect it from the mains.
– Remove the actuator cable and sensor cable from the valve.
– Detach the valve with fluid box from dispensing robot.
CAUTION
High temperatures, danger of burns
Be careful if you have used the heater with your application. A nozzle heater can reach
temperatures of up to 180 °C. Do not touch this area before it has cooled, since there is the
danger of severe burns. Use heat resistant gloves.
Disassemble the valve as follows.
Step 1 (Adapter for compressed air)
Unscrew and remove the Adapter for Compressed
Air from the cartridge. First, unscrew the
connection counter-clockwise; then pull it off.
Important Note!
Make sure that no medium spills into the machine.
Step 2 (fluid box)
Remove the fluid box with the cartridge from the
valve. Turn the fluid box by 45° and pull it off from
the valve.
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VTK-TR-BA-171e-1 - User Manual MDS 3080-V
Step 3 (cartridge)
Unscrew the cartridge counter-clockwise and
remove it from the fluid box. If necessary, use the
MDT 309 - Cartridge locking pin.
Important Note!
Make sure that no medium spills into the machine.
Step 4 (tappet)
Pull the tappet from the fluid box. Pull the tappet
spring from the tappet rod.
Step 5 (nozzle fixation nut)
Remove the nozzle fixation nut by screwing
counter-clockwise. Use the MDT 327 - Multi-
Function Tool.
Step 6 (nozzle insert)
Use the thin end of MDT 323 - Nozzle Insert –
Squeezing Out Tool TA, to push out the nozzle
insert from the fluid box.
Important Note!
Immediately use a cleaning wire to push through
the channel of the nozzle insert, to avoid
hardening of residue medium.
Step 7 (tappet centering screw)
Unscrew the Tappet Centering Screw BY from the
fluid box (counter-clockwise). Use the MDT 303 -
Nozzle Insert Changing Tool.
The three pins of MDT 303 have to fit exactly into
the three holes of the Tappet Centering Screw BY.
Turn the MDT 303 counter-clockwise while
pressing it down slightly to the fluid box. Combine
the MDT 303 with MDT 327 for a better leverage.
Step 8 (tappet sealing and tappet centering
piece)
Disengage the tappet centering piece and tappet
sealing from the fluid box. Use the thicker side of
tool MDT 323 (as shown) or the thicker end of the
MDT 328.
Important Note!
When using a 2G Tappet rod, you do not need a
tappet centering piece.