YSi-X_Ope_E - 第74页

4-13 4 Maintenance 5. Monthly 5.1 Inspecting each axis Inspect the ball screws and the guides on each axis. Check the follo wing points. n NOTE A grease spattering prevention cover is attached along each axis. Remove the…

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4-12
4
Maintenance
4.2 Checking the board sensor condition
This equipment uses transmission type fiber sensors as the board sensors. Periodically check that these sensors
correctly operate even when the conveyor rail width is changed.
1
Open the [Unit] – [Conveyor] tab.
2
Press the [Width] button to change
the conveyor width.
1. When the “Conveyor” dialog box
appears, enter the maximum conveyor
width (460mm) in the "Target Width" box
and press the [OK] button. The conveyor
width will automatically change to the
specified size.
2. Then, enter the minimum conveyor width
(50mm) in the “Target Width” box and
press the [OK] button. The conveyor
width will automatically change to the
specified size.
54401-M6-00
3
Check whether an error has
occurred.
The conveyor sensor is operating properly
unless an error message appears when the
conveyor width is changed. No further
check is necessary.
n
If an error message appears, then adjust the sensor with the procedure below.
• Adjusting the conveyor sensor
If an error occurred when the conveyor width was
changed, check
to perform auto-tuning
of the
conveyor sensor.
1. Open the [Unit] – [I/O] tab.
2. In the Output list, select “CONVEYOR”
(T01000E0).
3. Press the [ON/OFF] to switch to 0 (OFF)
→
1 (ON)
→
0 (OFF) to perform auto-tuning.
4. Press the [Conveyor] button again to
change the conveyor width as in step 2.
If no error message appears, the sensors
are correctly working.
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4.3 Checking the board clamp condition
Check the following points when a board is clamped on the conveyor.
1. Check that the board is securely clamped and there is no play.
2. Check that there is no clearance between the board hold plate and the board.
3. Check that the board surface is flush with the conveyor rail upper surface.
4. Check that the board clamp unit moves smoothly.
5. Check that the board is securely clamped by the side clamp and there is no play in the lateral direction.
6. Check that the side clamp moves smoothly.
Changing the conveyor width
Enter the conveyor width here.
Step 2
Changing the conveyor width
3
2
4-13
4
Maintenance
5. Monthly
5.1 Inspecting each axis
Inspect the ball screws and the guides on each axis.
Check the following points.
n
NOTE
A grease spattering prevention cover is attached along each axis. Remove the cover before inspection and reattach
it in place after inspection.
n
NOTE
Before beginning work, remove the rear center panel by referring to section 3.4 “Removing the rear center panel” in
this chapter so that you can open and close the rear safety door. After finishing the work, reattach the rear center
panel.
Checkpoints
1. Any foreign matter or chips adhering to the ball screws and linear guides?
2. Do the ball screws and linear guides have the correct amount of grease?
Check if grease has flowed off or splattered in the air failing to adhere. Also check if grease has discolored or
hardened.
3. Any abnormal sounds from the ball screws?
Press the emergency stop button. Then check for any abnormal sounds while pushing the unit by hand along the X-axis
or Y-axis back and forth.
Countermeasures
1. Ball screws and linear guides may be damaged when chips or debris bite into them. If chips or debris are adhering,
wipe them off along with the grease or remove with tweezers, etc.
2. Apply grease while referring to "Cleaning and greasing the ball screws and linear guides of each axis" described later.
3. Consult your YAMAHA sales office or representative when abnormal sounds occur even after trying the
countermeasures in the above steps 1 and 2.
c
CAUTION
• When handling grease or lubricant, read and follow the precautions listed in section 3.2.2, "Lubricating tools and
grease", in this chapter.
• If abnormal noise is emitted from the ball screw or guide of each axis, then contact our sales representative for
assistance. Disassembly and cleaning of the ball screw or guide by the user will void the warranty.
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4
Maintenance
5.2 Cleaning and greasing the ball screws and guides
To clean and grease the ball screws and guides of each axis, follow the steps below.
5.2.1 Cleaning and greasing the XT-axis ball screws
n
Required tool
• Phillips screwdriver
• Lint-free paper wipe
• Grease gun
• Specified grease (NSL)
c
CAUTION
Wear protective glasses and gloves when handling grease.
e
1
Make the preparations for the
cleaning and greasing work.
1. Press the emergency stop button to put
the machine into emergency stop.
2. Open the [Unit]-[Conveyor] tab and
press the [Stopper] button to raise the
board stopper.
2
Open the front and rear safety
doors.
3
Remove the grease spattering
prevention cover.
1.
Move the conveyor table to the rear side.
2. Use the Phillips screwdriver to remove the
screws securing the grease spattering
prevention cover.
3. Remove the grease spattering prevention
cover.
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4
Clean the ball screws.
Wipe away the old grease and dirt from the
entire ball screw with a paper wipe.
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c
CAUTION
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.
5
Inject new grease.
Use the grease gun to inject the specified
grease (NSL) into the grease nipple (1
place).
53410-M6-00
n
NOTE
See Chapter 5, “Lubrication points”, for details on the
lubrication points and grease gun nozzles.
6
Wipe away excess grease
.
Move the conveyor table back and forth
several times by hand and wipe away
excess grease with a paper wipe.
7
Reattach the grease spattering
prevention cover.
Reattach the cover using the reverse of the
removal procedure.
Removing XT-axis grease spattering prevention cover
Grease spattering prevention cover
Step 3
Cleaning the XT-axis ball screw
Step 4
XT-axis ball screw Paper wipe
Lubricating the XT-axis ball screw
Step 5
Grease nipple