YG12_英文保养手册.pdf - 第52页
3-2 3 Periodic maintenance items n Cleaning the slide section e 1 Remo ve the nozzle from the head. Always first press the emergency stop button and then remove the nozzle from the he ad. The machine must be in emergency…
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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 Checking and cleaning the spring-action parts
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Checking the spring action
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.
Checking the nozzle spring action
Press on the nozzle tip with your hand.
OK No good
Returns to original
position
Returns sluggishly
or does not return.
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Periodic maintenance items
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Cleaning the slide section
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1
Remove the nozzle from the head.
Always first press the emergency stop button
and then remove the nozzle from the head.
The machine must be in emergency stop to
ensure safety during work.
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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.
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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.
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Remove excess oil remaining in the
nozzle.
Using an air blow gun, blow air for about 5
seconds from the nozzle tip, and for about 5
seconds from the nozzle attachment 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.
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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.
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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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Reinstall the nozzle.
After checking one more time that there is
no oil remaining in the nozzle, reinstall the
nozzle back onto the head (when the
machine is not equipped with a nozzle
station).
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When the machine is equipped with a nozzle station,
return the nozzles to the nozzle station after cleaning.
Lubricating the slide section
Step 3
Nozzle
Precision screwdriver
(with a small amount of turbine oil applied)
Checking the spring action
Step 4
Spring action at nozzle tip
Step 6
Checking for residual oil
Oil blotting paper
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.
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Periodic maintenance items
1.1.2 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.
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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, "Nozzle leaf springs" in Chapter 4.
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When the machine is equipped with a nozzle station, return the removed nozzles to the nozzle station.