M3plus_MaintenanceManual_e.pdf - 第32页
2- 3 2 Daily maintenance items 1.2 Checking the nozzles visually Use either of the following two methods to check the nozzle tip visually. ■ Remove the nozzle and check with a magnifying glass or similar tool. Nozzle tip…
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Daily maintenance items
2
■ How to check for clogged nozzles (on the [Unit] tab screen)
The term “clogged nozzle” used here indicates that material such as solder is adhering to the nozzle hole, causing
a rise in negative pressure even if there are no components present. This state might cause problems such as
component mounting errors. Check for clogged nozzles using the following procedure.
1
Attach the nozzle.
e
Press the emergency stop button and attach Type
82A nozzles to all heads. When the machine has a
nozzle station, press the [Nozzle Change] button to
change the nozzles.
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2
Reset the numerical figure.
Press the [Reset] button on the lower right of the
screen to reset the pickup level values.
3
Generate negative pressure.
Select [Unit] - [Head], and set the [Vacuum]
buttons for all heads to ON. When this value starts
rising, wait 5 to 10 seconds and set to OFF.
4
Note this figure.
When a figure appears in red on the head screen,
make a note of the “Max” reading. If this figure is
130 or below then it is within normal range. If this
figure exceeds 130 then the nozzle hole might be
dirty so clean it.
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n
NOTE
The above example is for Type82A nozzles so the figures shown will be
different for other types of nozzles. (Example: Type 81A = 180)
n
NOTE
If a correct figure cannot be obtained after cleaning even after
performing steps 1 to 4, then the interior of the spline shaft might be
dirty.
1. Checking the nozzle
Negative pressure generation
Step 1 to 3
[Nozzle Change] button[Vacuum] button
Negative pressure check
Step 4
Take note of this figure.
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2
Daily maintenance items
1.2 Checking the nozzles visually
Use either of the following two methods to check the nozzle tip visually.
■ Remove the nozzle and check with a magnifying glass or similar tool.
Nozzle tip
Solder is adhering to nozzle hole
Solder is adhering to nozzle hole
Nozzle hole
Nozzle state
Normal condition
Clogged nozzle Shiny material on tip
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■ Leave the nozzle installed and check with a hand mirror and flashlight.
Hand mirror
Multi-vision camera
Flashlight
Check with a hand mirror.
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c
CAUTION
If the above check reveals a dirty or a clogged nozzle, promptly clean the nozzle by referring to “1.1 Cleaning a nozzle" in
Chapter 3.
1. Checking the nozzle
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Daily maintenance items
2
2. Checking the nozzle leaf springs
If nozzle leaf springs cannot hold a nozzle securely, this adversely affects pickup, recognition and
mounting operations. Periodically check the leaf springs for nozzle holding status.
■ Leaf spring inspection points
Check the following points while attaching and detaching a nozzle.
• The leaf spring has enough gripping force.
• There is no gap between the leaf springs and the nozzle.
• The leaf spring is not warped or deformed.
• The gripping part of the leaf spring is not frayed.
Checking leaf spring condition
There should be
no gap.
Leaf spring should
not be frayed.
Screw should
be tightened.
Leaf spring should not be
warped or deformed.
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c
CAUTION
If any of the above points is found to be a problem, remove the nozzle and replace the leaf springs as a pair, by referring to
"1. Nozzle leaf springs" in Chapter 4.