a3369b.pdf - 第150页

Cleaning VTK - TR -BA- 171e - 1 - User Manua l MDS 3080 -V 141 Afterward s, clean th e outsi de of the t appet sealing . Keep using t he flui dic brush, especially for the out er edge. Then clean the inner r im of the ta…

Cleaning

140

VTK-TR-BA-171e-1 - User Manual MDS 3080-V

Step 4 (tappet centering screw)

Push the fluidic brush through the bore of the

tappet centering screw first.

Keep using the fluidic brush to clean the threads

of the tappet centering screw.

Afterwards, use a cleaning rod to clean the inner

rim of the tappet centering screw.

Important note!

You need to perform a two finger seesaw test (see

Tab. 31, page 142), to check if the tappet rod runs

smoothly through the tappet centering screw.

Otherwise, the parts have to be cleaned again.

Step 5 (cartridge base)

For the cartridge base, start with the fluidic brush

to clean all bores and openings of the cartridge

base.

Next clear the bore with a cleaning rod.

Finally use a fluid box cleaner to clean the wide

opening of the bore.

Important Note!

There are two types of cartridge bases: Cartridge

Base CH (without integrated luer lock) and

Cartridge Base CHI (with integrated luer lock). If

you use a cartridge base CH, you need to clean the

Fluid Box Connector Luer Lock as follows.

Otherwise, you can continue with the next step.

Push a cleaning rod through the bore of the Fluid

Box Connector Luer Lock several times to remove

any residues of the medium.

Clean the center bore of the Fluid Box Connector

Luer Lock using a fluidic brush.

Cleaning the openings and thread of the Fluid Box

Connector Luer Lock using a fluid box cleaner. Use

it for the outside and the end of the bore.

Step 6 (tappet sealing and tappet centering

piece)

For the tappet sealing, clean the bore of the

tappet sealing carefully with a fluidic brush.

Cleaning

VTK-TR-BA-171e-1 - User Manual MDS 3080-V

141

Afterwards, clean the outside of the tappet

sealing. Keep using the fluidic brush, especially for

the outer edge.

Then clean the inner rim of the tappet sealing with

a cleaning rod.

Clean the outside of the tappet centering piece

first with a lint-free cloth.

Use a fluidic brush for the bore of the tappet

centering piece.

Important Note!

There is no tappet centering piece, if you use a 2G

tappet rod.

Step 7 (valve body)

Clean the valve with a lint-free cloth.

Step 8 (O-ring)

Clean all O-rings with a lint-free cloth.

Tab. 30: Clean all components by hand

– Dry all the components in the air or with compressed air. For nozzle inserts, we recommend

to use the MDT 324 Nozzle Insert Cleaning Holder.

– A two finger seesaw test is necessary to check if the tappet rod runs smoothly through the

Tappet Centering Screw BY. Otherwise, the parts have to be cleaned again. The table explains

how to perform a two finger seesaw test.

Cleaning

142

VTK-TR-BA-171e-1 - User Manual MDS 3080-V

Step 1:

Push the Tappet Centering Screw BY onto the tappet.

Step 2:

Hold the tappet with the Tappet Centering Screw BY between the index

finger and the thumb. Swivel the tappet half-circularly between a and b. The

Tappet Centering Screw BY must slide smoothly on the tappet in between

the ends.

Remove the Tappet Centering Screw BY from the tappet after the test.

Tab. 31: Two-Finger-Seesaw-Test

In case you still have parts, which are not completely clean after the fine purification, repeat the

corresponding cleaning steps for those components several times, if necessary. If that is still not

helping, contact our Technical Support.

9.4.5 Assembling of the Valve

Re-assemble the valve and its components as follows.

Unusual (connector BY)

In the exceptional case that you removed the

connector BY as well, you have to mount it first.

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). The fluid box body will fit into the

mounting body, if the mounting direction is

correct.

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

Torque Wrench Tool VM with the Bit Hexagon

Key 2.5). Torques are depending on the material

of the mounting body (stainless steel 120 – 140

cN.m, PEEK 70 – 80 cN.m).

Important Note!

Do not press the fluid box body while fastening

the Connector BY, otherwise, it cannot correctly

grip into the fluid box body.