Vermes MDS 358X user Manual.pdf - 第57页

Init ial Operation 46 VTK - TR -BA- 072e - 1 - User Manua l MDS 358X S eries Step 2 (O - ring) In case that you re ce ive d t he O - rin g separately , you have t o mount it ont o the f luid box b ody. Pull th e O- ring …

Initial Operation

VTK-TR-BA-072e-1 - User Manual MDS 358X Series

Options Recommended options

Different models of fluid boxes

Different fluid box connectors

Nozzle heating

Cleaning set

MDT 301 - Universal Tool

MDT 306 - Torque Wrench Tool

MDT 324 - Nozzle Insert Cleaning Holder

If the intended application needs particular accessories (e.g. seals made of special material),

consult our Technical Support at once (see Page 7). Do not start the system in incomplete state.

6.2 First Assembling of the Valve

This chapter describes how to ready your microdispensing system for the first dispensing session.

Always make sure all screw couplings sit tight (torque values in paragraph 3.3.11, page 19).

INFORMATION

Some parts preassembled

Some elements of the equipment are usually delivered in preassembled state. In those cases you

can omit the respective steps.

Proceed as follows:

Picture Explanation

Step 1 (fluid box body)

Information!

This step will be optional, if you re-assemble the valve

later, since usually you would not remove the

Connector BY from the mounting body.

Place the fluid box body on the receptacle of the

mounting body. Align the bore on the fluid box body

with the bore on the mounting body (see circles in

the first picture). The fluid box body will sit in the

mounting body.

Push the Connector BY through the mounting body

into the bore of the fluid box body. Screw the

Connector BY tight (clockwise) by using an MDT 327

(for newer revisions of the Connector BY you can also

use a hexagon key 2.5 or the MDT 306 - Torque

Wrench Tool VM with the Bit Hexagon Key 2.5).

Torques are depending on the material of the

mounting body (stainless steel 90 – 100 cN.m, PEEK 70

– 80 cN.m).

Important Note!

Do not press the fluid box body while fastening the

Connector BY. Otherwise, the Connector BY cannot

correctly grip into the fluid box body.

Initial Operation

VTK-TR-BA-072e-1 - User Manual MDS 358X Series

Step 2 (O-ring)

In case that you received the O-ring separately, you

have to mount it onto the fluid box body.

Pull the O-ring over the fluid box body with a pair of

tweezers. Be careful not to damage the O-ring.

Step 3 (tappet sealing)

Use MDT 328 - Tappet Sealing Changing Tool to press

the Tappet Sealing PE/PTFE/HT into the fluid box

body until it sits tight.

Step 4 (tappet centering piece)

Press the tappet centering piece into the fluid box

body. Use the wide end of the MDT 323 - Nozzle Insert

- Squeezing Out Tool TA. Make sure the tappet

centering piece rests flat.

Important note!

You do not need a tappet centering piece, if you use a

2G tappet rod.

Step 5 (tappet and tappet centering screw)

Screw the Tappet Centering Screw BY into the fluid

box. Do not screw it tight yet. Screw it only for two

rotations.

Important note!

Before mounting, please place a small droplet of

Tappet Grease TF (Order no. 1014637; droplet size ca.

2 mm) on the tappet and another on the tappet

spring (for placing see blue arrows in the picture).

Make sure that the tappet tip is free of grease. Rotate

the tappet and pull it in and out for three times to

spread the grease.

Place the tappet spring over the Tappet Centering

Screw BY.

Push the tappet rod through the tappet spring into

the Tappet Centering Screw BY. Make sure the tappet

goes through the tappet sealing.

Initial Operation

VTK-TR-BA-072e-1 - User Manual MDS 358X Series

Screw the Tappet Centering Screw BY completely into

the fluid box (torque 100 – 140 cN.m) with MDT 303 -

Nozzle Insert Changing Tool.

Make sure the three pins of the MDT 303 fit exactly

into the three holes of the Tappet Centering Screw

BY. Turn the MDT 303 clockwise while pressing it

down slightly to the fluid box.

Combine the MDT 303 with MDT 327 for a better

leverage.

Step 6 (nozzle insert)

Clip the nozzle insert into the fluid box. Use the small

hole of MDT 327 - Multi-Function Tool to pick up the

nozzle insert and to place it. Make sure the nozzle

insert sits flat.

Step 7 (nozzle fixation nut)

Screw the nozzle fixation nut clockwise onto the fluid

box. Use MDT 327 Multi-Function Tool.

Step 8 (cartridge base)

Place the cartridge base onto the fluid box and fix it

with the tightening screw. Screw the tightening screw

clockwise with MDT 327 Multi-Function Tool (torque

120 – 140 cN.m).

Important note!

In case you use a Cartridge Base without integrated

luer lock, you need to screw the Fluid Box Connector

Luer Lock into the top bore of the cartridge base CH.

Use the open-ended wrench of the MDT 327

(hexagon screw size M8, torque stainless steel 100 –

120 cN.m, PEEK 40 – 60 cN.m).

Optional (isolation body)

For thermally sensitive applications, you might use an

isolation body. Pull it onto the fluid box, until it clips

in. Screw it tight with the two screws for the isolation

body (torque 40 – 50 cN.m). Use the MDT 329 - L-

Shape hexagon Key 2 mm.

Step 9 (adjust screw)

Open the adjust screw completely. Screw counter-

clockwise. Use MDT 327 Multi-Function Tool.