YC8_Mainte_E - 第71页
3-22 3 Periodic maintenance items 3.1.6 Checking the negative pressure After cleaning the spline shafts, chec k the negativ e pressure (vacuum lev el) generated in each head. 1 After assembly , check the vacuum lev els. …
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Periodic maintenance items
5
Disconnect the air joint from the
spline shaft.
Fit the spanner (19) onto the bottom of the
head so that the head will not move,
remove the air joint with the spanner (8).
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Prepare the cleaning kit .
1. Pour Isopropyl alcohol into the container
of the cleaning kit.
2. Place a Paper cup or tray under the
spline shaft to be cleaned.
c
Never use solvent other than Isopropyl alcohol.
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. Isopropyl alcohol into the spline shaft air
path to clean away dust and grime.
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Blow air into the spline air path.
1. Connect the air blow tool to an air
connector on the front of the machine.
2. Use the air blow tool to blow air through
the spline shaft while placing a rag
against the tip of the spline shaft.
Repeat the above procedure (steps 7
and 8) until the Isopropyl alcohol flowing
out from the spline shaft becomes clean.
3. Make sure that after blowing air, smear
no longer appears on the rag placed
against the tip of the spline shaft, and
then reattach the ejector as in step 5.
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Repeat the cleaning procedure.
Repeat steps 3 to 8 to clean the inside of
the spline shafts of all heads.
0
Return the head to its original
state.
Return the head to its original state in the
reverse order of steps 2 to 5.
Disconnect the air joint
Step 5
Use the spanner (19) to hold the head.
air joint spanner (8)
Cleaning the spline shaft
Step 6
Nozzle of cleaning kit
Spline shaftPump of cleaning kit
Air blow into spline shaft
Step 8
Air blow tool
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Periodic maintenance items
3.1.6 Checking the negative pressure
After cleaning the spline shafts, check the negative pressure (vacuum level) generated in each head.
1
After assembly, check the vacuum
levels.
1. Leave nozzles detached from the heads.
2. Open the [Unit]-[Head] tab screen and
press the [Vacuum] button to generate a
negative pressure. Read the "Max" values
shown on the screen and determine
whether the vacuum levels are
appropriate by referring to the criteria
below.
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Reattach the nozzles.
Attach the nozzles by hand back to the
heads.
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Vacuum level criteria in spline air path
When nozzle is open : 70 or less
When nozzle is sealed : 190 or more
n
NOTE
The vacuum level in the spline shaft air path might sometimes differ slightly depending on the air source and operating
conditions. Use the above criteria for reference during maintenance.
Checking the vacuum level
Step 1
[Vacuum] buttonRead "Max" values.
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Periodic maintenance items
3.1.7 Cleaning and greasing the Z and CZ axis ball screws
n
Required tools
• Lint-free cleaning cloth or paper towel
• Specified grease: NSL
• Square cloth
c
Always wear protective goggles and gloves when using grease.
c
e
1
Make the preparations for the
work.
1. Put square bandages a square cloth on
the conveyor.
2. Remove all nozzles.
3. Press the emergency stop button to put
the machine in the emergency stop
state.
2
Clean the ball screws.
1. Move the head to the upper end.
2. Wipe the entire ball screw with a
cleaning paper.
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Wipe away thoroughly the old grease in the grooves of
the ball screw.
3
Apply grease to the ball screws.
Apply grease to the entire ball screw by
hand.
4
Wipe away excess grease.
Move the head up and down several times
by hand, and then wipe away excess
grease.
Cleaning the Z, CZ-axis ball screws
Step 2
Z-axis ball screws
CZ-axis
ball screws
Cleaning cloth