YS24X_Mainte_E.pdf - 第104页

3-37 3 Periodic maintenance items 4 Remo ve the air hose bracket. Using the hex wrench, remove the bolts (4 locations) fixing the air hose bracket. 53363-L4-00 5 Pr epare the cleaning kit. 1. Pour IP A (isopropyl alcohol…

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Periodic maintenance items
4.4 Cleaning the inside of the spline shaft
Dust or grime may adhere to the air path of spline shafts and cause component pickup or mounting errors.
Although depending on the air supply condition and operating time, the inside of each spline shaft should be
cleaned once every 3 months.
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CAUTION
If spline shaft movement becomes unstable or abnormal noise is emitted from a spline shaft, then contact YAMAHA
sales representative. Disassembly and cleaning of the spline shaft by the user will void the warranty.
4.4.1 Cleaning the inside of the spline shaft
1
Remove the nozzles from all heads.
With the nozzle station
1. Press the [Nozzle Change] button on the
[Unit] - [Head] screen.
2. Select "ALL" from the "Head Number" and
select "Store Nozzle" from the "Nozzle
Type" on the "Nozzle Change" screen.
3. Press the [OK] button to store all nozzles
in the nozzle station.
54314-L4-00
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NOTE
If the machine is not equipped with a nozzle station,
remove all nozzles manually after opening the machine
safety cover
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2
Move the head unit forward.
1. Press the emergency stop button and
then open the machine safety cover.
2. If the machine is equipped with a
carriage, remove the carriage to allow
you to easily access the head.
3. Move the head unit forward.
4. Place a square cloth under the head unit.
3
Disconnect the air hoses from each
spline shaft.
Remove the air hose of each head from the
joint. The joints are located on the ejector
side and the spline side respectively.
53334-L4-10
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NOTE
It is not necessary to remove the air hose from the air
hose bracket.
Storing nozzles
Step 1
Head Number : “ALL ”, Nozzle Type : “Store Nozzle”
[Nozzle Change] button
Disconnecting the air hoses
Step 4
Joint (ejector side)
Joint (spline side)Air hose
Air hose bracket
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Periodic maintenance items
4
Remove the air hose bracket.
Using the hex wrench, remove the bolts (4
locations) fixing the air hose bracket.
53363-L4-00
5
Prepare the cleaning kit.
1. Pour IPA (isopropyl alcohol) into the
container of the cleaning kit.
2. Place a container or a cloth under the
head to be cleaned to receive IPA.
53335-L4-00
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CAUTION
Never use solvent other than IPA (isopropyl alcohol).
6
Remove the maintenance bolt for
spline shaft cleaning.
Use the precision wrench to remove the
maintenance bolt.
53336-L4-00
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CAUTION
A washer packing is fitted to the maintenance bolt. Be
careful not to drop it.
Cleaning kit
Step 5
Pump (IPA container)
Nozzle
Removing the maintenance bolt
Step 6
Precision wrench
Maintenance bolt
Upper block of spline shaft
Removing the air hose bracket
Step 4
Fixing bolt
Air hose bracket
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Periodic maintenance items
7
Clean the inside of the spline shaft.
1. Insert the nozzle of the cleaning kit into
the cleaning hole of the spline shaft.
2. Pour IPA into the spline shaft air path to
clean away dust and grime.
53337-L4-00
8
Blow air into the spline air path.
1. Prepare an air blow tool (optional
purchase part) and connect it to a
nearby machine.
2. Place a cloth right under the head to be
cleaned.
3. Block the joint part with your finger to
avoid the air from leaking, and air blow
inside the spline shaft with the air blow
tool from the hole that the maintenance
bolt was removed.
4. Check that the dirt at the tip of the spline
shaft does not stick to a cloth.
5. Install the maintenance bolt.
53338-L4-10
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NOTE
Repeat the Steps 8 to 9 until the IPA flowing from the
spline shaft is cleaned.
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CAUTION
Make sure to wear safety goggles as the exhaust
blowing air might strike face.
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CAUTION
A washer packing is fitted to the maintenance bolt. Be
careful not to drop it.
9
Repeat the steps 6 to 8.
Repeat the steps 6 to 8 to clean the inside
of spline shafts of all heads.
0
Reattach the air hose bracket to
its original position.
Secure the air hose bracket with the bolt
using the hex wrench.
q
Reconnect the air hoses back to
their original positions.
Return the nozzle to its original head if nozzle
was removed manually.
Cleaning the spline shaft
Step 7
Nozzle of cleaning kit
Spline shaft Pump of cleaning kit
Air blow into spline shaft
Step 8
Blow the air from this hole.
Air blow tool
Block the joint part with your finger.