M20_Ope_E.pdf - 第498页
Chapter 16 Dispenser 16-28 16-5-1-3 Disassembling the cartridge body Action: ① Loosen and detach the nozzle retainer cap. Note: From this point, use care to protect the ceramic nozzle from damage (prevent it fr om striki…
Chapter 16 Dispenser
16-27
16-5 Cleaning screw type dispense heads
16-5-1 Cleaning the cartridge body
16-5-1-1
Removing the cartridge body
Action:
① Loosen the tube joint nut at the cartridge body side, then disconnect the tube from the cartridge
body.
Note: From this point, use care to protect the ceramic nozzle from damage (prevent it from striking hard objects,
etc.).
16-5-1-2 Cartridge body components
Screw retainer cap
Upper bearing
Screw
Lower bearing
Seal ring
Cartridge body
Adapter plate
Ceramic nozzle
Nozzle retainer cap
Removed
cartrid
g
e bod
y
Ceramic nozzle
Cartridge body
Chapter 16 Dispenser
16-28
16-5-1-3 Disassembling the cartridge body
Action:
① Loosen and detach the nozzle retainer cap.
Note: From this point, use care to protect the ceramic nozzle from damage (prevent it from striking hard objects,
etc.).
② Remove the ceramic nozzle.
③ Remove the adapter plate.
④ Remove the face seal from the adapter plate.
Note: When removing the face seal, use care to prevent it from making contact with sharp objects.
Such contact could damage the seal, making it unusable.
Normally, the face seal can be easily removed from the adapter plate by lightly shaking the adapter plate.
In cases where it fails to drop out, however, use a piece of adhesive tape, etc., to remove it.
⑤ Loosen and remove the screw retainer cap.
⑥ Extract the screw from the cartridge body.
Note: Grasp the hexagon top of the screw and gently extract by pulling it vertically upward.
①
②
③
④
Adapter plate
Face seal
⑤
⑥
Screw area
Upper bearing
Lower bearing
Seal ring
Screw
Chapter 16 Dispenser
16-29
⑦ Extract the upper bearing, seal ring, and lower bearing from the screw.
Note: While extracting the seal ring and lower bearing, grasp the hexagon top of the screw and turn the screw
gently in the clockwise direction.
16-5-1-4 Washing the cartridge body components
Action:
① Do not wash the following components with a solvent as doing so could cause them to swell.
Use a cloth wetted with ethyl alcohol or isopropyl alcohol to clean off an adhered dispense material.
② After removing any residual glue from their interiors, wash the following components ultrasonically
in ethyl alcohol or isopropyl alcohol. Use care not to damage the components during the ultrasonic
washing process.
Avoid washing the components ultrasonically for extended periods as doing so could heat up the
components and possibly damage them. (The recommended ultrasonic washing period is 2 minutes
or less.)
⑦
Upper bearing
Screw
Lower bearing
Seal ring
Lower bearing
(material: Teflon)
Upper bearing
(material: Teflon)
Seal ring
(material: Teflon)
Face seal
(material: Viton)
Screw Cartridge body Adapter plate