N7201A617E00_0317 - 第148页

NPM-W 2 EJM7DE-MB-04 M-00 4-2-5 -5 Cleaning the screw unit 2 ■ Example of cleaning ● If the nozzle inside is clogged with adhesive, remove it with a pin, drill, or wire that matches the nozzle hole diameter. ● Check for …

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NPM-W2 EJM7DE-MB-04M-00
4-2-5-4
Cleaning the screw unit 1
10
11
Disconnect the
screw unit from
the syringe
(counterclockwise)
Disassemble the screw unit
●Turn the top cap in a clockwise
and turn the bottom cap in a
counterclockwise to remove.
●Do not remove the screws.
12
To
15
Bottom cap
Top cap
Screw
Wipe adhesive
on each part off
using a lint free
cloth
13
Wipe the adhesive in the screw shaft using an
air blow gun
●Cover the part when using
an air blow gun because
adhesive will scatter in all
directions.
14
Clean the parts for three minutes with an
ultrasonic cleaner
●Having the water level of the ultrasonic
cleaner tank at 1 cm, place a beaker
containing cleaning solvent (e.g. alcohol,
etc.) into the ultrasonic cleaner.
● Put the parts inside the beaker. (The
amount of cleaning solvent inside the
beaker should be sufficient to let all parts
sink under the solvent.)
● The cleaning time should not exceed 5
minutes.
(Even cleaning for 5 minutes or more brings
about the same effect.)
1 cm
Every
24
hours
PeriodicPeriodic
inspection
NPM-W2 EJM7DE-MB-04M-00
4-2-5-5
Cleaning the screw unit 2
■Example of cleaning
●If the nozzle inside is clogged with adhesive, remove it with a
pin, drill, or wire that matches the nozzle hole diameter.
●Check for any adhesive on and around the O-ring.
●Using the swab of P751S sometimes sticks into the screw
shaft. Use the stick side of the swab to clean inside of the
screw shaft.
NOTICE
●Please replace the O-ring if it is cracked or deteriorated.
●Usethefollowingindustrialswabsforprecisionmachineforcleaning.
After
opera-
tion
Maintenance
4-2-5
Cleaning and checking the
screw unit and the nozzles 3
(dispensing head(option))
Nozzle holder
Screw shaft
When adhesive residue found on a
swab to wipe the part is reduced to a
relatively small amount as shown above,
any remaining adhesive will not affect
the dispensing accuracy.
15
Take the parts out and clean each part with a
swab
Dispensing nozzle
Model model No. Remarks
751S
N986P751S
200 pieces
NPM-W2 EJM7DE-MB-04M-00
4-2-5-6
16
17
Blow away
alcohol with an
air blow gun to
dry them
Assemble the screw unit back and check the
condition of cleaned parts
①No clogging in the tip
②No adhesive stuck on the tip
③No adhesive stuck on the
outer surface
④No adhesive stuck on the
reference plane
⑤No bends in the nozzle and
the stopper
●Remaining alcohol will
harden the adhesive.
They should be dried
completely.
To
19
1
2
5
3
4
18
Set the screw unit to the syringe
(Clockwise)
Every
24
hours
PeriodicPeriodic
inspection