YG300_Mainte_E - 第34页
2-4 2 Daily maintenance items 2 . C h e c k i n g t h e n o z z l e l e a f s p r i n g s I f n o z z l e l e a f s p r i n g s c a n n o t h o l d a n o z z l e s e c u r e l y, t h i s a d v e r s e l y a f f e c t s p…
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Daily maintenance items
1.2 Checking the nozzles visually
Use either of the following two methods to check the nozzle tip visually.
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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 tip
Nozzle hole
Nozzle state
Normal condition
Clogged nozzle Shiny material on tip
53200-F1-00
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Leave the nozzle installed and check with a hand mirror and flashlight.
Flashlight
Multi-vision camera
Hand mirror
Check with a hand mirror.
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CAUTION
If the above check reveals a dirty or a clogged nozzle, promptly clean the nozzle by referring to sections 1.1,
"Cleaning nozzles", in Chapter 3.
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Daily maintenance items
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.
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Leaf spring inspection points
Check the following points by removing the nozzle and reattaching it to the nozzle holder.
• 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 the 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.
53202-F1-00
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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 section 1, "Replacing the nozzle leaf springs", in Chapter 4.
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Daily maintenance items
3. Checking the nozzle spring action
Check the spring action of the nozzles and nozzle holders. Press on a nozzle or nozzle holder and if it
returns normally there is no problem. However, if the return action is poor (sluggish) then pickup errors and
recognition errors will occur.
Press on the nozzle tip with your hand.
Returns to original
position
Returns sluggishly
or does not return.
Checking the nozzle spring action
OK No good
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Checking the nozzle holder spring action
Nozzle holder
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CAUTION
Remove the nozzle and generate a negative pressure (vacuum) when checking the nozzle holder spring action. When
the check shows that nozzle holder spring action is poor, lubricate the nozzle by referring to section 2.2, "Cleaning and
lubricating a nozzle holder", in Chapter 3.