YS12P_YS12F_Mainte_E - 第83页
3-18 3 Periodic maintenance items 3.3 Inspecting the board conveyor unit 3.3.1 Inspecting the conveyor belt and cleaning the guide pulley As the belt wears aw a y , slippages may occur that prevent securely con veying th…
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Periodic maintenance items
5
Apply the new grease.
Ball screw
Apply as much as 2 cm of specified grease
(NSL) to finger. Rub it evenly into the ball
screw grooves.
Ball guide
Apply as much as 2 cm of specified grease
(NSL) to finger. Coat it evenly on the ball
guides.
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6
Set the applied grease.
1. Close the machine’s safety cover, and
cancel the emergency stop. In case the
specification has a carrier, set the carrier.
2. Press the [Push-up] button to lower the
push-up unit.
3. Follow the Step 2 procedure to raise the
push-up unit.
4. Repeat Step 2 and 3 several times to set
the grease. After setting the grease,
leave the push-up unit in the up state.
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7
Wipe away excess grease.
1. Press the emergency stop button, and
open the machine’s safety cover. In case
the specification has a carrier, remove
the carrier.
2. Wipe the excess grease with lint-free
cloth that does not raise dust.
8
Attach the push-up plate to its
original position.
Attach the push-up plate in the reverse
procedure of step 3.
c
CAUTION
The push-up plate is heavy. Use plenty of caution when
handling.
Applying the grease
Step 5
Ball guides (2 places)
Ball screws (2 places)
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Periodic maintenance items
3.3 Inspecting the board conveyor unit
3.3.1 Inspecting the conveyor belt and cleaning the guide pulley
As the belt wears away, slippages may occur that prevent securely conveying the boards. It is therefore
necessary to make periodic inspections for wear of the conveyor belt.
Belt wear may also cause trouble such as erroneous detection of the conveyor sensor due to dust from belt
wear accumulating on the sensor surface, or dust from belt wear accumulating in the belt guide grooves may
cause the belt to stick, etc.
1
Change the conveyor width to a
convenient width for maintenance
work.
1. Press the [Width] button to display the
"Conveyor Width" screen.
2. Enter a width wide enough for a hex
wrench to be inserted (about 200 mm) in
the "Target Width" box and press the [OK]
button. The conveyor is changed to the
specified width.
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2
Prepare for cleaning.
1. Press the emergency stop button and
then open the machine safety cover.
2. If the machine is equipped with a
carriage, remove the carriage to easily
access to the conveyor.
3. Place a square cloth on the push-up
plate.
3
Remove the board clamp plates.
Use a hex wrench (3) to remove the 4 board
mounting bolts shown in the figure on the
right. Then remove the board clamp plate.
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Step 1
[Width] button
Enter conveyor width.
Changing the conveyor width
Step 3
Removing the board clamp plate
Board clamp plate
Board clamp plate mounting bolts
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Periodic maintenance items
4
Loosen the belt.
1. Before loosening the conveyor belt, mark at the current position of pulley with a permanent marker.
2. Loosen the pulley mounting screws applying the tension with a hex wrenches (5 and 4) referring to
the figure below.
3. Move the pulley to the direction that the belt is loosened.
Loosening the belt
Hex wrench (4)
Hex wrench (5)
Mark pulley position.
Direction that belt is loosened
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