YS100_Mainte_E - 第96页

3-31 3 Periodic maintenance items 9 Mount the board clamp plate. 1. Fit the board clamp plate into its original position and tighten the board clamp plate mounting bolts with a hex wrench (3). 2. Remove the square cloth …

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3-30
3
Periodic maintenance items
5
Remove the belt from the conveyor.
Make the conveyor belt pass through the
gap between the spline shaft and conveying
pulley, and remove the conveyor belt.
6
Inspect the conveyor belt.
Check the transfer surface of the detached
belt for worn-out or scuffing. If the belt worn-
out amount or scuffing is large, replace the
conveyor belt referring to chapter 4, "4.
Replacing the conveyor belts".
7
Clean the belt guides and pulleys.
1. Use a vacuum assembly (option) to
suction the belt wear debris on the belt
guides and sensors, etc.
2.
Use a plastic spatula or similar tool to
remove the belt wear debris adhering to
the outer peripheral surface of the pulleys.
3.
Use a brush or similar tool to remove the
belt wear debris caught in the belt guides
.
53379-L1-00
c
CAUTION
Use a plastic spatula and brush to avoid scratching the
pulleys and guides.
c
CAUTION
Do not use a solvent (IPA, etc.) unless the guides and
pulleys are excessively dirty. If using a solvent, be
careful not to spill the solvent on the bearing in the
pulleys during cleaning.
8
Replace the conveyor belt.
1. Replace the belt temporarily while
putting it on the pulley.
2. Move the pulley to the position marked
in Step 4 and tighten the mounting bolts.
3.
If looseness of the belt is found, adjust the
pulley position to apply tension.
53380-L1-00
n
NOTE
The conveyor belt tension standard value of this
machine is 200 to 250 Hz. Adjust the conveyor belt
tension with a tension meter as necessary. The same
standard value applies to the extension conveyor type.
c
CAUTION
The tightening torques of the pulley mounting bolt that
applies tension is 5.5N·m. Do not tighten the bolt
excessively.
Step 7
Cleaning the belt guides and pulleys
Spatula (made of plastic)
Belt wear debris sticking to pulley
Outer peripheral
surface of pulley
Belt guide
Brush
Step 8
Tension measurement point
Tension measurement point
3-31
3
Periodic maintenance items
9
Mount the board clamp plate.
1. Fit the board clamp plate into its original
position and tighten the board clamp
plate mounting bolts with a hex wrench
(3).
2. Remove the square cloth
placed on the
push-up plate.
0
Check the belt rotating condition.
1. Make sure that the board clamp plate
top surface is approx. 0.5mm lower than
the belt upper surface.
2. Close the machine safety cover and
cancel the emergency stop. If the
machine is equipped with a carriage, set
the carriage.
3. Press the [Conveyor In] button on the
[Unit] - [Conveyor] screen to turn on the
conveyor motor and check the belt
rotation.
4. If the conveyor belt rotation is uneven or
if the belt deflects, adjust the pulley
position that applies tension again.
54316-L1-00
c
CAUTION
When the difference between the belt upper surface
and board clamp top surface is very little, the board
transfer error may occur easily. In this case, contact
YAMAHA sales representative.
Step 10
Checking the belt rotating condition
Board clamp plate
Conveyor belt
0.5 mm
Board clamp plate
Belt upper surface
Checking conveyor belt rotation
Conveyor drive buttons
Left Right
Low Left Low Right
3-32
3
Periodic maintenance items
4. Three-month inspection
4.1 Cleaning and replacing the ejector filter
Although depending on the air supply conditions and operating time, ejectors should be inspected once every
3 months. Use an Air blow tool (option) to remove dust buildups when small. It is recommended to replace the
air filter if heavy dust deposits are found.
e
1
Move the head unit forward.
1. Press the emergency stop button and
then open the machine safety cover.
2 Move the head unit forward.
2
Remove the filter cap.
Loosen the filter cap by turning it to the left
with a slotted screwdriver, and remove it.
53347-L1-00
3
Clean the filter.
Take the filter out of the ejector. When there
is only a little dust in the filter, use an Air
blow tool to blow it away and return the
filter back to the original position.
53348-L1-00
n
NOTE
If there are heavy dust deposits in the filter or the filter
has discolored, replace it with a new filter (K46-M8527-
C0X). As a general guide, filters should be replaced
once every 3 months, although this depends on the
actual operating time.
4
Reattach the filter cap.
1. Fit the filter and O-ring into the filter cap
and insert it into the ejector.
2. Turn the filter cap to the right until it locks
and clicks.
c
CAUTION
When attaching the filter, make sure that the O-ring
does not come out from between the manifold and the
filter cap.
Cleaning the filter
Step 5
Air blow toolFilter
Removing the filter cap
Step 3
Ejector unit Ejector filter