YS12P_YS12F_Mainte_E - 第88页
3-23 3 Periodic maintenance items 4.2 Inspecting the ejector vacuum pressure Check the v acuum level of each ejector of the ejector unit to see if it is working correctly . If not reaching the specific v acuum level, the…
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Periodic maintenance items
4. Three-month inspection
4.1 Cleaning and replacing the ejector filter
Although depending on the air supply conditions and operating time, ejectors should be inspected once every
3 months. Use an air blow tool to remove dust buildups when small. It is recommended to replace the air filter
if heavy dust deposits are found.
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1
Move the head unit forward.
1. Press the emergency stop button and
then open the machine safety cover.
2. Move the head unit forward.
2
Remove the filter cap.
Loosen and remove the filter cap with a
slotted screwdriver.
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3
Clean the filter.
Use tweezers to take the filter out of the
ejector. When there is only a little dust in the
filter, use an qir blow tool to blow it away
and return the filter back to the ejector.
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NOTE
If there are heavy dust deposits in the filter or the filter
has discolored, replace it with a new filter (K46-M8527-
C0X). As a general guide, filters should be replaced
once every 3 months, although this depends on the
actual operating time.
4
Reattach the filter cap.
1. Fit the filter and O-ring into the filter cap
and insert it into the ejector.
2. Turn the filter cap to the right until it locks
and clicks.
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CAUTION
When attaching the filter, make sure that the O-ring
does not come out from between the manifold and the
filter cap.
Cleaning the filter
Step 4
Air blow toolFilter
Removing the filter cap
Step 3
Ejector unit Ejector filter
O-ring
Filter cap
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Periodic maintenance items
4.2 Inspecting the ejector vacuum pressure
Check the vacuum level of each ejector of the ejector unit to see if it is working correctly.
If not reaching the specific vacuum level, the valve or the ejector BIT may need to be replaced. Replace with
the procedure in chapter 4, "3.Ejector unit".
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1
Move the head unit forward.
1. Press the emergency stop button and
then open the machine safety cover.
2. Move the head unit forward.
2
Disconnect the air hoses from the
lower air joints.
Disconnect all air hoses from the lower air
joints. Do not disconnect the air hoses from
the upper air joints.
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Check the ejector vacuum level.
1. Open the [Unit] - [Head] screen.
2. Press the [Vacuum] button while blocking
the tip of the air hose with finger. Perform
this procedure to all heads.
3. Make a note of the "Max" value of each
head while the air hose is blocked, and
check that the value is higher than the
reference value below.
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Reference value of ejector vacuum level
When air joint is blocked: 190 or higher
TIP
If the vacuum level of any head does not reach the
reference value, check the air path in the head (interior
of the spline shaft or air hose between the ejector and
spline shaft). Clean or replace it as needed.
4
Return the air hoses to the original
position.
Step 2
Disconnecting the air hoses
Transparent air hose
Air joint
Air joint
Checking the vacuum levels
Step 3
Press the [Vacuum] button for each head.
Check "Max" vacuum levels
(with air joint blocked).
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Periodic maintenance items
4.3 Operation check of head blow valve and cleaning blow valve
Check the operation of the head unit valve (solenoid valve). The head unit valve includes the following. One is
the blow valve that blows per head unit. The other one is the cleaning blow valve that blows strongly to clean
the inside of the shaft. If the valve does not work properly, it needs to be replaced. Replace it referring to
chapter 4, "3.2 Replacing a valve (solenoid valve)" and "3.3 Inspecting the board conveyor unit".
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CAUTION
A strong air flow is exhausted during the cleaning blow. Always remove all nozzles attached to the heads before
starting the cleaning blow. Starting the cleaning blow while the nozzles are still attached may blow the nozzles away
from the heads causing the nozzles to break or become lost.
1
Remove the nozzles from all heads.
If nozzle station is equipped with the machine:
1. Press the [Nozzle Change] button on the
[Unit] - [Head] screen.
2. Select "ALL" for the Head Number and
select "Store Nozzle" for Nozzle type on
the "Nozzle Change" screen.
3. Press the [OK] button. The nozzles of all
heads are stored to the nozzle station.
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NOTE
If the machine is not equipped with the nozzle station,
press the emergency stop button and then open the
machine safety cover to remove nozzles manually.
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2
Move the head unit forward.
1. Press the emergency stop button and
then open the machine safety cover.
2. Move the head unit forward.
3
Blow each head.
Press all the [Blow] buttons on the [Unit] -
[Head] screen.
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4
Check the blowing condition.
Place finger under each head. Check that
the air is exhausted equally from all heads. If
the less air is exhausted or the air is not
exhausted, a valve (solenoid valve) needs
to be replaced. Replace it referring to
chapter 4, "3.2 Replacing a valve (solenoid
valve)".
Press the [Blow] button for each head.
Step 2
Blowing
Storing nozzles
Step 1
Head Number : “ALL ”, Nozzle Type : “Store Nozzle”
[Nozzle Change] button