YSM10_Mainte_E - 第68页
3-1 3 Periodic maintenance items 1. W eekly inspection This section mainly describes weekly inspection and cleaning. 1.1 Nozzle inspection A faulty buffing operation (spring action) or defecti ve nozzle leaf spring ma y …
5. One-year inspection 3-29
5.1. Head unit 3-29
5.1.1 Cleaning the spline shaft 3-29
5.2 Conveyor 3-31
5.2.1 Inspecting conveyor belt and cleaning guides and pulleys 3-31
5.3 W-axis 3-35
5.3.1 Cleaning and lubricating W-axis ball screw and hexagon spline 3-35
5.3.2 Cleaning and lubricating the W-axis guide 3-37
5.4 Base 3-39
5.4.1 Cleaning the air/mist filter and cup 3-39
6. Two-year inspection 3-41
6.1 Head unit 3-41
6.1.1 Replacing the ejector bit 3-41
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Periodic maintenance items
1. Weekly inspection
This section mainly describes weekly inspection and cleaning.
1.1 Nozzle inspection
A faulty buffing operation (spring action) or defective nozzle leaf spring may cause pickup errors. To prevent
this, inspect each nozzle.
1.1.1 Nozzle buffing area inspection
Check the spring action of the nozzles. Press on a nozzle 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.
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CAUTION
When checking by pressing the nozzle tip, use care to avoid applying excessive force. The condition is normal if the
tip returns to its original position after being pressed in approximately 1mm.
Checking the nozzle spring action
Example showing type 302A nozzle
Press on the nozzle tip with your hand.
Returns to original
position.
Returns sluggishly
or does not return.
OK Fail
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Periodic maintenance items
1.1.2 Checking the nozzle leaf spring
Inspect the nozzle holding status of the head periodically.
• An unstable holding force at the nozzle leaf spring (hereafter "leaf spring") can adversely affect pickup, recognition,
and mounting operations.
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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 should have enough gripping force.
• There should be no gap between the leaf springs and the nozzle.
• The leaf spring should not be deformed.
• The gripping part of the leaf spring should not be worn out.
• Mounting screw should be tightened.
Checking the leaf spring condition
Example of HM head
Mounting screw should be tightened.
There should be
no gap.
There should be no
deformation or wear.
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CAUTION
If any problem is found during the check work shown above, replace the leaf springs referring to chapter 6, "2.1
Replacing nozzle leaf springs".
As a rule, be sure to replace a pair of components even when only the leaf spring on one side deteriorates.
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CAUTION
Return the nozzle you have removed to the head.
When the nozzle has been removed from the nozzle station, return it correctly to the storage position where the nozzle
has been removed.