Vermes MDS 358X user Manual.pdf - 第137页
Cleaning 126 VTK - TR -BA- 072e - 1 - User Manua l MDS 358X S eries 9.4.3 D emou nt th e V alv e C AUTI O N No dispensing medium residues Before dem ounti n g the f luid box from the v alve, m ake sure t hat no disp ensi…
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– 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.
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VTK-TR-BA-072e-1 - User Manual MDS 358X Series
9.4.3 Demount 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 a 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 (cartridge)
Unscrew and remove the cartridge. First unscrew
the cartridge counter-clockwise, then pull it out.
Step 2 (cartridge holder)
Screw open the two screws for the cartridge
holder (counter-clockwise). Remove the cartridge
holder.
Step 3 (fluid box)
Turn the locking lever by 180° from “Close” to
“Open”.
Turn the fluid box by 45° and pull it off from the
valve.
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Optional positions
The bayonet fluid box has three different locking
positions (1: -90°, 2: 0°, 3: +90°) in which the valve
can be operated. To open it from locking position
1, turn the fluid box to position a. To open it from
locking position 2 or 3, turn the fluid box to
position b.
Optional (isolation body)
In case you have used an isolation body in your
application, remove it from the fluid box.
Unscrew the two screws for the isolation body
(counter-clockwise). Use the MDT 329 – L-Shape
Hexagon Key.
Step 4 (tappet rod and tappet spring)
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. You can use the MDT 327 -
Multi-Function Tool or the MDT 307 - Adjust Tool
TA Hotmelt Handle (with the correct Bit).
Step 6 (nozzle insert)
Use the thin end of MDT 323, to push out the
nozzle insert from behind.
Step 7 (tappet centering screw)
Unscrew the Tappet Centering Screw BY from the
fluid box (counter-clockwise). Use the MDT 303 -
Nozzle Changing Tool.
Make sure the three pins of MDT 303 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)
Push out the tappet centering piece and the
tappet sealing from the fluid box. Use the thicker
side of tool MDT 323.
Important note!
There is no tappet centering piece, if you use a
2G tappet rod.