YC8_Mainte_E.pdf - 第56页
3-7 3 Periodic maintenance items 2.2 X, Y and W axes Check the condition of the X, Y , and W axis ball screws and guides, as described below . n NOTE A grease spattering prevention cover is attached to the X-axis and Y-a…
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3
Periodic maintenance items
2. Monthly inspection
This section mainly explains the inspection and cleaning procedures. For details about locations needing
lubrication after cleaning, see Chapter 4, "Lubrication points".
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2.1 Head
2.1.1 Cleaning the nozzle air path
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Required tools
• Air blow tool (option)
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e
1
Remove the nozzle from the head.
Always first press the emergency stop button
and then remove the nozzle from the head.
The machine must be in emergency stop to
ensure safety during work.
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When the machine is equipped with a nozzle station
nozzle station after cleaning.
2
Blow air through the nozzle.
Using an air blow tool, blow air through the
nozzle from the nozzle tip and then from the
other end.
53306-N8-00
Air blow
Step 2
Insert the nozzle tip into the air tube
and blow the air.
Air tube (black)
Air blow tool (option)
Air tube (orange)
connected to air supply
port
Blow the air from the nozzle
attachment side.
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Periodic maintenance items
2.2 X, Y and W axes
Check the condition of the X, Y, and W axis ball screws and guides, as described below.
n
NOTE
A grease spattering prevention cover is attached to the X-axis and Y-axis. Before starting the inspection work, detach
this grease spattering prevention cover referring to “Detaching grease spattering prevention cover” described later
on.
Checkpoints
1. Any foreign matter adhering to the ball screws and linear guides?
Check if any fallen chips have adhered to the X and Y axis ball screws and/or X, Y and W axis 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 pressing the X-axis or Y-axis by hand.
Countermeasures
1. Ball screws and linear guides may be damaged when chips and other material bite into them. If chips are adhering,
wipe them off along with the grease or remove with tweezers, etc.
2. Apply grease while referring “Cleaning and lubrication” described later on.
3. Consult your YAMAHA sales office or representative when abnormal sounds occur even after trying the
countermeasures in the above steps 1 and 2.
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machine made by the customer is beyond the coverage of the warrantee.
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Periodic maintenance items
2.2.1 Cleaning and greasing the ball screw
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Required tools
• Square cloth
• Phillips screwdriver
• Hex wrench (3mm)
• Lint-free cleaning cloth or paper towel
• Grease gun
• Specified grease: NSL
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Always wear protective goggles and gloves when using grease.
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1
Make the preparations for the
work.
1. Press the emergency stop button to put
the machine in the emergency stop
state.
2. Put a square cloth on the conveyor
plate.
2
Remove the grease spattering
prevention covers.
Remove the grease spattering prevention
covers on the X, Y1 and Y2 axes.
X-axis
1. Use a Phillips screwdriver to remove the
screws securing the left side of the
grease spattering prevention cover.
2. Move the head 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.
53307-N8-00
TIP
When reattaching the X-axis grease spattering
prevention cover, use the reverse order of the above
procedure.
Y-axes
1. Use the hex wrench to remove the bolts
securing the rear side of the grease
spattering prevention cover.
2. Move the head all the way to the rear
side and remove the bolts securing the
front side of the grease spattering
prevention cover.
3. Remove the grease spattering prevention
cover by pulling it to the front.
53308-N8-00
TIP
When reattaching the Y-axis grease spattering
prevention covers, use the reverse order of the above
procedure.
Removing the Y-axis grease spattering prevention cover
Y-axis grease spattering prevention cover
Step 2
Y-axis grease
spattering prevention
cover mounting bolt
Y-axis motor
Removing the X-axis grease spattering prevention cover
Phillips screwdriver
Step 2