YS24X_Mainte_E.pdf - 第69页

3-2 3 Periodic maintenance items 1.1.2 Checking the leaf spring If nozzle leaf springs cannot hold a nozzle securely , this adversely affects pic kup, recognition and mounting operations. P eriodically check the leaf spr…

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Periodic maintenance items
1. Weekly inspection
This section mainly describes weekly inspection and cleaning.
1.1 Checking and cleaning the nozzles
If buffing action (spring action) is poor, component pickup errors may occur. To prevent such problems,
periodically check and clean each nozzle.
1.1.1 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 NG
53300-L4-00
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Periodic maintenance items
1.1.2 Checking the leaf spring
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 (FM head : nozzle arm assy).
• The leaf spring is not warped or deformed.
• The gripping part of the leaf spring is not frayed.
• No screws are loose.
Checking the leaf spring condition
Screw should be tightened.
There should be
no gap.
There should be no
deformation or wear.
53305-L4-10
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NOTE
If any problem is found during the check work shown above, replace the leaf springs while referring to "2. Nozzle leaf
springs" in Chapter 6.
As a rule, be sure to replace a pair of parts even when only the leaf spring on one side deteriorates.
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NOTE
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.
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Periodic maintenance items
1.2 Nozzle cleaning
The following describes how to clean and lubricate the Type 30X Group nozzles. Also, clean and lubricate the
Type31X Group nozzles in the same manner.
1.2.1 Cleaning and lubricating the nozzle buffing area
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1
Remove the nozzle from the head.
1. Press the emergency stop button and then open the machine safety cover.
2. Remove nozzles from the head. If the machine is equipped with the nozzle station, press the [Nozzle
Stn Shutter] button to open the nozzle station shutter and remove nozzles.
2
Clean the slide section.
Apply IPA (isoprophyl alcohol) or ethanol to
the slide section. Push the nozzle tip several
times to repeat the buffing action (spring
action) to clean the slide section. After
cleaning, blow sufficient air to remove IPA or
ethanol.
3
Lubricate the slide section.
Using a precision screwdriver or similar tool
with a pointed tip, apply a small amount of
turbine oil (just enough so that it sinks in) to
the slide section.
53301-L4-20
4
Check the buffing action (spring
action).
Push the nozzle tip several times to repeat
the buffing action and spread turbine oil.
Use a lint-free cleaning cloth to wipe away
excess oil from around the nozzle.
53302-L4-20
5
Remove excess oil remaining in the
nozzle.
Air blow with the aIr blow tool for
approximately 5 seconds from the nozzle tip
side, and approximately 5 seconds from the
nozzle mounting side. Repeat this process a
few times to remove excess turbine oil
remaining in the nozzle.
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NOTE
A thin coat of oil is enough to lubricate the slide section.
6
Check that the oil was removed.
Blow air through the nozzle again while
placing commercially-available oil blotting
paper over the opposite end of the nozzle,
and check for residual oil in the nozzle.
53303-L4-10
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NOTE
Performing step 5 is usually sufficient to remove oil
remaining in the nozzle. However, if oil still remains then
blow air through the nozzle once again.
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Return the nozzle to its original
position.
After verifying again that the nozzle is free of
oil, return the nozzle back to the head.
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NOTE
When the nozzle is removed from the nozzle station,
return it back to the original stored position.
Lubricating the slide section
Step 3
Buffing area
Use a precision screwdriver
to apply a small amount of
turbine oil.
Checking the spring action
Step 4
Spring action at nozzle tip
Checking for residual oil
Step 6
Oil will appear after blowing air (first time) for
about 5 seconds from the nozzle tip.
Repeat the air blow for about 5 seconds
each from the nozzle tip and from the
attachment side.
This task is finished when oil no
longer appears.
Oil blotting
paper
AIr blow tool