YG12_英文保养手册.pdf - 第68页
3-18 3 Periodic maintenance items 3.1.2 Checking the blow valve operation (each head) Check the blo w level of each ejector of the ejector unit to see if it is working correctly . 1 Check that the blow air is being exhau…
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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.
54307-L5-00
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.
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Periodic maintenance items
3.2 Cleaning and lubricating the inside of the spline shaft
Dust or grime may adhere to the air path of spline shafts and cause component pickup or mounting errors.
Although depending on the air supply condition and operating time, the inside of each spline shaft should be
cleaned once every 3 months.
c
If spline shaft movement becomes unstable or abnormal noise is emitted from a spline shaft, then contact our sales
3.2.1 Cleaning the inside of the spline shaft
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1
Press the emergency stop button.
The machine should be in emergency stop
to ensure safety during work.
2
Move the head to a convenient
position for maintenance work.
n
NOTE
Move the scan camera to the right or left away from
the head assembly so that the scan camera will not get
dirty.
3
Remove the nozzles from all heads.
Remove all nozzles by hand.
Reference
When the machine is equipped with a nozzle station
(option), place the nozzles removed from the heads
back to the nozzle station.
4
Disconnect the air hose from each
spline shaft.
Disconnect the air hose inserted into the
upper part of each spline shaft.
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5
Remove the ejector unit stay.
Use the hex wrench or T-handle hex wrench
to remove the four bolts that secure the
ejector unit stay.
53309-L5-00
6
Prepare the cleaning kit (KHN-
M8860-00X).
1. Pour IPA (isopropyl alcohol) into the
container of the cleaning kit.
2. Place a shop cloth or rag under the
spline shaft to be cleaned.
53319-L5-00
c
Never use solvent other than IPA (isopropyl alcohol).
Disconnecting the air hoses
Step 4
Air hose
Spline shaft air joint
Spline shaft
Removing the ejector unit stay
Step 5
Hex wrench or T-handle hex wrench
Ejector unit stay
Ejector valve
Cleaning kit
Step 6
Pump (IPA container)
Nozzle