YSP_Users_E.pdf - 第240页
8-8 8 Inspection and maintenance 4 L oosen the belt tension. Use the hex wrench (3mm) to Loosen the two mounting bolts of the tensioner (pulley bracket) so that he tensioner can move. It doesn't need to remove the b…
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Inspection and maintenance
2.3 Adjusting the conveyor belt tension
The boards are moved by conbeyor belt drive. If the conveyor belts are too loose, they may slip on the pulleys
causing unstable board transfer. If the belts are too tight, they may break or wear excessively. The tension of
each belt on the fixed and movable rails should be adjusted evenly. If necessary, adjust the tension as follows:
2.3.1 Board carry-in and carry-out conveyors
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Required tools
• Hex wrench (3mm)
• Phillips screwdriver
1
Change the conveyor width to a
convenient width for maintenance
work.
1. Press the [Width] button to display the
"Conveyor Width" dialog.
2. In the "Target Width" box, enter a width
large enough for maintenance work
(about 200mm) and press [OK].
The conveyor is changed to the width
that was just entered.
64801-L3-00
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2
Press the emergency stop button.
3
Detach the conveyor cover.
Detach the conveyor cover (acrylic cover
and plate) to access the conveyor.
1. Detach the acrylic cover.
Remove 10 screws to detach the acrylic
cover.
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NOTE
There are washers with screws. Be careful not to lost
them.
2. Detach the plate.
Remove 4 screws to detach the plate.
63814-L3-00
TIP
In the case of the machine with the conveyor
extension, open the safety cover of the conveyor
extension to work.
Changing the conveyor width
Step 1
Removing the conveyor cover
Step 3
Screw
Acrylic cover
Screw
Plate
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Inspection and maintenance
4
Loosen the belt tension.
Use the hex wrench (3mm) to Loosen the
two mounting bolts of the tensioner (pulley
bracket) so that he tensioner can move. It
doesn't need to remove the bolts.
63812-L3-00
5
Adjust the belt tension.
Slide the tensioner to adjust the belt tension.
6
Tighten the mounting bolts of the
tensioner (pulley blacket).
If the belt tension isl loose, adjust the
tensioner position to tighten the belt.
c
CAUTION
Tighten the mounting bolts of the pulley and pulley
bracket to the following torques:
• Pulley mounting bolt : 3.8N•m.
Be careful not to tighten the bolts excessively.
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NOTE
The specification of the conveyor belt tension is in the
following. Use the tension meter to adjust as needed.
• Conveyor : 184 to 197 Hz
• Conveyor extension : 102 to 109 Hz
7
Check the belt rotating condition.
1. Cancel emergency stop.
2. Press the [Conveyor Drive Allow] buttons
on the [Unit] - [Conveyor] screen to turn
on the conveyor motor and check the
belt rotation.
3. If the slip of the motor pulley, the belt
rotation fluctuation and the deflection
are excessive, adjust the tensioner (pulley
blacket) position and transfer a board
again and check the condition.
8
Reattach the conveyor cover.
Tighten the four screws on the plate with
pushing the plate upward to reattach the
conveyor cover.
Step 4,5
Tension measurement positions
Adjusting the conveyor belt tension
Tensioner (pulley bracket)
mounting bolt
Hex wrench (3mm)
Conveyor belt
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Inspection and maintenance
2.3.2 Board clamp unit (board clamp table)
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Required tools
• Hex wrench (3mm, 4mm, 5mm)
1
Change the conveyor width to a
convenient width for maintenance
work.
1. Press the [Width] button to display the
"Conveyor Width" dialog.
2. In the "Target Width" box, enter a width
large enough for maintenance work
(about 200mm) and press [OK].
The conveyor is changed to the width
that was just entered.
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2
Press the emergency stop button
and open the upper door.
The machine must be in emergency stop to
ensure safety during work.
3
Remove the mask guide plates.
Remove the mask guide plates on the left
and right of the mask clamp. Remove the
mask guide plate on the right. Remove bolts
(4 pcs.) with a hex wrench (3mm) to detach
the mask guide plate. Remove the mask
guide plate on the left with the same
procedure.
63813-L3-00
4
Loosen the belt tension.
The tensioner is on the right side on the
conveyor.
Use the hex wrench (4mm and 5mm) to
Loosen the two mounting bolts of the
tensioner (pulley) so that the tensioner can
move. It doesn't need to remove the bolts.
63811-L3-10
5
Adjust the belt tension to slide the
tensioner (pulley).
Changing the conveyor width
Step 1
Step 3
Removing the mask guide plate
Mask guide plate Bolt
Step 4,5
Adjusting the conveyor belt tension
Tensioner (pulley)
mounting bolt
Hex wrench (5mm)
Hex wrench (4mm)
Conveyor belt