YG12_英文保养手册.pdf - 第67页
3-17 3 Periodic maintenance items 3.1.1 Checking the ejector vacuum pressure Check the v acuum level of each ejector of the ejector unit to see if it is w orking correctly . e 1 Pr ess the emer gency stop button. The mac…
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3
Periodic maintenance items
3. Three-month inspection
3.1 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 gun to remove dust buildups when small. We recommend replacing the air filter if
heavy dust deposits are found.
1
Move the head all the way to the
front end of the Y axis.
On the [Unit]-[Head] tab (or [conveyor] tab)
screen, press the [Axis] button to open the
"Move Axis" screen. Then move the head
assembly all the way to the front of the Y
axis (front of machine).
Reference
The ejector unit is located at the front of the head
assembly. It is easier to inspect the ejector filters when
the head assembly is positioned to the front side of the
Y axis. (Inspect the ejector filters from the front of the
machine.)
e
2
Press the emergency stop button.
The machine should be in emergency stop
to ensure safety during work.
3
Remove the filter cap.
Loosen and remove the filter cap with a
slotted screwdriver.
53340-L5-00
4
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 air blow gun to blow it away
and return the filter back to the original
position.
53316-L5-00
n
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.
5
Reattach the filter cap.
1. Fit the filter into the filter cap and insert it
into the ejector.
2. Turn the filter cap to the right until it locks
and clicks.
c
Removing the filter cap
Step 4
Ejector unit
Ejector filter
O-ring
Filter cap
Cleaning the filter
Step 5
Air blow gunFilter
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Periodic maintenance items
3.1.1 Checking the ejector vacuum pressure
Check the vacuum level of each ejector of the ejector unit to see if it is working correctly.
e
1
Press the emergency stop button.
The machine should be in emergency stop
to ensure safety during work.
2
Disconnect the air hose from the
air joint under each ejector.
Disconnect all air hoses from the air joints (air
couplings).
53333-L5-00
3
Check the ejector vacuum level.
1. Openthe[Unit]-[Head]tab.
2. Press the [Vacuum] button while blocking
each air joint with your finger.
3. Make a note of the "Max" reading of
each head while the air joint is blocked,
and check that the reading is higher
than the criterion value below.
Make the same check for all heads.
54305-L5-00
c
The exhaust air blow might strike your face, so be sure
to wear safety goggles.
n
Criterion of ejector vacuum level
When air joint is blocked: 190 or more
Reference
If the vacuum level of any head does not reach the
criterion value, then 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 if
necessary.
Disconnecting the air hoses
Step 2
Transparent air hoseAir jointEjector unit
Ejector
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
3.1.2 Checking the blow valve operation (each head)
Check the blow level of each ejector of the ejector unit to see if it is working correctly.
1
Check that the blow air is being
exhausted correctly.
To check if the blow air is being uniformly
exhausted from each air joint on the lower
part of the ejector unit, open the [Unit]-
[Head] tab and press the [Blow] button for
each head.
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3.1.3 Checking the cleaning blow valve operation (for all heads)
Check that the cleaning blow function for the spline shafts is working correctly.
1
Press the [Blow] button for each
head.
Open the [Unit]-[Head] tab and press the
[Blow] button for each head.
c
The exhaust air blow might strike your face, so be sure
to wear safety goggles.
2
Remove the nozzles from all heads.
c
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.
3
Press the [Cleaning Blow] button
and check the blow air.
Press the [Cleaning Blow] button on the
lower right of the [Unit]-[Head] tab screen,
and check the blow air during the cleaning
blow for all heads.
54308-L5-00
Checking the blow air exhaust
Press the [Blow] button for each head.
Step 1
Checking the blow air
Step 1-3
Press the [Blow] button for each head.