YS100_Mainte_E - 第84页
3-19 3 Periodic maintenance items 2.2.4 Reassembling the FNC nozzle assembly When finished cleaning the FNC nozzle assembly and FNC locate pin, reassemble them as explained below . 1 Rotate the spline shaft so the mark i…
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Periodic maintenance items
2.2.3 Cleaning the FNC locate pin
Inside the spline shaft of each FNC head, a locate pin (or locate pin) is used to lock the rotation of the FNC
nozzle assembly when the selected nozzle points downwards. If dust or grime adheres to this locate pin,
component pickup or mount errors tend to occur. Although depending on the operation time, we recommend
cleaning the locate pin at the time when you take apart and clean the FNC nozzle assembly.
1
Clean the FNC locate pin parts.
Wipe the dirt on the FNC locate pin and
spring with a cleaning cloth moistened with
alcohol.
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2
Clean the FNC locate pin insertion
hole.
1. Blow air into the air path of the FNC
locate pin insertion section of the spline
shaft with the air blow tool (option).
2. Wipe inside the FNC locate pin insertion
section thoroughly with a spiral-tip cotton
swab moistened with alcohol.
3. After cleaning, check it is completely
clean.
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NOTE
Wipe and clean to the end of the FNC locate pin
insertion section.
n
NOTE
Use spiral-tip cotton swabs (thickness: 4mm or less) that
are commercially available.
3
Lubricate the FNC locate pin.
Using the lubrication syringe for nozzle
padding part and turbine oil (VG32), apply
one to two drops of oil on the FNC locate
pin, and then spread them with your finger.
4
Reinstall the FNC locate pin and
spring.
Advance to the next section "2.2.4
Reassembling the FNC nozzle assembly".
FNC locate pin and spring removed from head
Step 1
FNC locate pin
Spring
Cleaning the FNC locate pin insertion section
Step 2
Wipe with cotton swab/bud moistened with alcohol.
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Periodic maintenance items
2.2.4 Reassembling the FNC nozzle assembly
When finished cleaning the FNC nozzle assembly and FNC locate pin, reassemble them as explained below.
1
Rotate the spline shaft so the mark
in the middle of the index holder
faces the front.
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2
Reassemble the FNC nozzle
assembly.
Insert, in order, the spring, FNC locate pin
and FNC nozzle assembly into the holder. At
this point, hold the FNC nozzle assembly with
the cutout facing towards the front and
Type 302F nozzle pointing downwards, and
insert each part up into the index holder.
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NOTE
Before inserting the FNC locate pin, make sure that the
small cams above the index holder are retracted
upwards.
3
Insert the bevel gear and shaft into
the center of the FNC nozzle
assembly.
While slightly pressing the FNC nozzle
assembly up, insert the bevel gear and shaft
into the center hole of the FNC nozzle
assembly from the front, and align the mark
on the bevel gear with the mark on the
index holder.
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CAUTION
Reassemble the nozzle assembly, bevel gear and shaft
in their original combination for each FNC head, without
mixing them with parts for other heads. If this
combination is changed, the bevel gear may not rotate
smoothly or the pickup vacuum level may drop.
Positioning so the mark faces the front
Step 1
This mark should face the front.
Inserting the FNC nozzle assembly
Step 2
Type 302F nozzle should be pointed downwards. Cutout
Index holder
Inserting the bevel gear and shaft
Step 3
Insert the shaft.
Align marks with each other.
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Periodic maintenance items
4
Secure the FNC nozzle assembly.
1. Turn the index holder so that the bevel
gear faces the opposite side.
2. Align the surface of the bevel gear shaft
horizontally and slide the stopper block
back to the original position. Then tighten
the bolt with the M1.5 hex wrench to
secure the stopper block.
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3. Rotate the spline shaft so the bevel gear
faces the front. While the spline shaft is
pulled out, fix the set screw for the locate
pin cam stopper with the special hex
wrench (0.7) or a hex wrench (0.7)
commercially available.
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CAUTION
Be cautious not to tighten the set screw for locate pin
cam stopper too tight, because the size is small.
Securing the FNC nozzle assembly
Step 4-2
Position the flat face of shaft horizontally.
Secure the stopper block with the hex wrench.
Tightening the set screw for locate pin cam
Step 4-3
Dedicated hex wrench