YS24_Mainte_E.pdf - 第78页
3-14 3 Periodic maintenance items 3 Clean the ball screws. 1. Using the handle, move the head unit to one end of each axis. 2. Wipe away the old grease and dirt from the ball screw with a lint-free cloth that does not ra…
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3
Periodic maintenance items
3. Two-month inspection
3.1 Cleaning and greasing the X and Y axes
This section describes how to clean and grease the X and Y axes. See "Chapter 5 Lubrication points and
schedule" for lubrication points and lubrication form. Prepare a grease gun and specified grease (NSL).
c
CAUTION
When performing the cleaning and greasing work, use square bandages to prevent parts from being lost or entering
the Y-axis linear part.
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CAUTION
For information on the use of grease, read the caution items for handling in "Safety instructions" and chapter 1, "2.2.2
Lubricating tools and grease".
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CAUTION
If abnormal sound is heard from the X and Y axis ball screws or guides, contact YAMAHA sales representative.
Disassembly and cleaning of the ball screws or guides by the user will void the warranty.
3.1.1 Cleaning and greasing the X-axis ball screw
1
Make the preparations for the
cleaning and greasing work.
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1. Take off all accessories susceptible to the
magnetic fields, such as a wristwatch
and/or magnetic ID card.
2. Press the emergency stop button and
then open the machine safety cover.
3. If the machine is equipped with a
carriage, remove the carriage.
4. Place a square cloth on the Y-axis linear
area and the push-up plate.
2
Remove the grease spattering
prevention cover.
Remove the X-axis grease spattering
prevention cover.
1. Use a Phillips screwdriver to remove the
screws securing the left side of the
grease spattering prevention cover.
2. Move the head unit all the way to the
left side and remove the screws securing
the right side of the grease spattering
prevention cover.
3. Remove the grease spattering prevention
cover by pulling it to the right.
53305-L2-00
TIP
When it is difficult to access the anti grease splatter
cover, prepare a step.
TIP
When attaching the anti grease splatter cover, follow
the reverse order of procedure described above.
Removing the X-axis grease spattering prevention cover
Phillips screwdriver
Square bandage
Grease spattering prevention cover
Step 2
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3
Periodic maintenance items
3
Clean the ball screws.
1. Using the handle, move the head unit to
one end of each axis.
2. Wipe away the old grease and dirt from
the ball screw with a lint-free cloth that
does not raise dust.
3. Move the head unit to the opposite side,
and wipe the ball screw also on the
opposite side.
53307-L2-00
n
NOTE
Wipe away the old grease and dirt in the lead groove
of the ball screw. Also check that no debris or residue
remains in the lead groove.
4
Apply grease to the ball screws.
Set the standard nozzle on the grease gun,
and inject the specified grease (NSL) from
the grease nipple (at the opposite side of
the X axis motor).
53315-L2-00
n
NOTE
Repeat the process below, and inject until the new
grease flows over the gap.
• Injection of grease
• Move the axis with hand a little
5
Wipe off the excess grease.
1. Grasp the movement handle and move
the head unit to one end.
2. Wipe all excess grease from the ball
screw and nut end faces.
3. Move the head unit to the opposite end
and wipe all excess grease from the
opposite-end ball screw and nut end
faces.
53317-L2-00
6
Perform a warm-up.
1. Remove the square cloth.
2. Reattach the spatter prevention cover.
3. Close the machine’s safety cover, and
cancel the emergency stop. If the
machine could be equipped with a
carriage, set the carriage.
4. Open the Warm-up screen, and perform
the warm-up operation for approximately
8 minutes.
Cleaning the X-axis ball screw
Step 3
Lint-free cloth
Greasing the X-axis ball screw
Step 4
Grease nipple for
X-axis ball screw
Wiping off the excess grease
Step 5
Excess grease
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3
Periodic maintenance items
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7
Check the grease condition.
1. After stopping warming up, push the
emergency stop button, and open the
machine’s safety cover. If the machine is
equipped with a carriage, remove the
carriage.
2. Remove the anti grease splatter cover.
3. Wipe the grease that was accumulated
on the ball screw and ball screw side
surface.
4. Attach the anti grease splatter cover.
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CAUTION
Repeat Steps 6 and 7 until grease accumulations no
longer occur. Beginning production with grease
accumulations present could cause the grease to
splatter.