YSD_Users_E.pdf - 第387页
3-13 3 Periodic maintenance items 4.4.2 Replacing the conveyor belt If the convey or belt is worn and needs to be replaced, use the following procedure to replace the belt. e 1 Pr ess the emergency stop button. The machi…
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3
Periodic maintenance items
4.4 Inspecting the board conveyor unit
4.4.1 Inspecting and cleaning the conveyor belt
As the conveyor belt wears away, slippages may occur that prevent securely conveying the boards. Periodically
check 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. To avoid such trouble, periodic cleaning of the belt is recommended.
1
Change the conveyor width to a
width allowing maintenance work.
e
1. Press the [Width] button to display the
"Conveyor Width" dialog. Enter a width
large enough for using the maintenance
tools and press [OK].
2. Press the emergency stop button and
then open the cover.
2
Loosen the tension on the conveyor
belt.
1. Using an oil-based marker pen, put a
mark to indicate the current tension
pulley position.
2. Loosen the tensioner bolt with The hex
wrench (4, 5mm) and slide the bolt fully
along the elongate hole (in the direction
of slackening the belt).
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3
Detach the belt.
Detach the belt from the pulley and also
from the belt groove on the board guide.
4
Check for wear on the board
conveying side of the belt.
Check for wear on the board conveying
side of the detached belt.
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NOTE
If the board conveying side of the belt is worn and the
belt needs to be replaced, replace it with a new one
by referring to the procedure described in the next
section "Replacing the conveyor belt".
5
Clean the pulley and the belt
groove on the board guide.
Using a vacuum cleaner or similar device,
suction up the belt wear dust deposited in
the belt groove or on the sensor surface.
Also clean the pulley and other parts for the
conveyor belt.
6
Reattach the belt in its original
position.
Removing the conveyor belt
Step 2-3
Hex wrench (5mm)
Marking
Hex wrench (4mm)Tensioner bolt
Tension pulley
Checking and cleaning the conveyor belt
Step 4-5
Belt groove
Conveyor belt
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Periodic maintenance items
4.4.2 Replacing the conveyor belt
If the conveyor belt is worn and needs to be replaced, use the following procedure to replace the belt.
e
1
Press the emergency stop button.
The machine must be in emergency stop to
ensure safety during work.
2
Slacken the belt.
1. Using an oil-based marker pen, put a
mark to indicate the current tension
pulley position.
2. Loosen the tensioner bolt with The hex
wrench (4, 5mm) and slide the bolt fully
along the elongate hole (in the direction
of slackening the belt).
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3
Detach the belt.
Using the hex wrench (3mm), loosen the bolt
securing the belt drive pulley and pull out
the shaft. Then detach the belt from the
pulley and take it out through the space
between the pulley and the shaft.
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4
Remove the board clamp assembly.
Using the hex wrench (3mm), remove the
four bolts securing the board clamp
assembly and remove the board clamp
assembly.
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5
Detach the belt from the conveyor.
6
Clean the conveyor rail.
Use a fine brush or paper wipe to clean the
gap between the conveyor rail and board
guide.
7
Attach a new belt.
1. Temporarily fit a new belt onto the pulley.
2. Reconnect the shaft to the pulley and
tighten the bolt.
3. Tighten the belt tensioner bolt while
applying a proper tension to the belt by
moving the belt tensioner bolt.
8
Reattach the board clamp assembly.
Reinstall the board clamp assembly in its
original position.
9
Check the belt rotating condition.
On the [Unit]-[Conveyor] tab, press the
[Right] button or [Left] button to turn on the
conveyor motor and check the belt rotation.
If the rotation speed fluctuates or there is
slack in the belt, adjust the position of the
tensioner bolt and then check the rotation
again.
Removing the conveyor belt
Step 2-3
Hex wrench (5mm)
Marking
Hex wrench (4mm)Tensioner bolt
Tension pulley
Detaching the belt from the conveyor
Step 3
Hex wrench (3mm) Space between pulley and shaft
Removing the board clamp
Step 4
Bolt securing the board clamp assembly
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Periodic maintenance items
4.5 Cleaning and greasing the hexagonal spline
1
Set the conveyor width to maximum.
Press the [Width] button on the Setup screen
to display the "Conveyor Width" dialog, and
select "Max Width".
e
2
Press the emergency stop button.
The machine must be in emergency stop to
ensure safety during work.
3
Clean the hexagonal spline.
Wipe away the old grease and dirt from the
hexagonal spline with a paper wipe.
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4
Apply grease.
Apply the specified grease to your finger,
and apply a thin coat evenly on the surface
of the hexagonal spline.
Cleaning the hexagonal spline
Step 3
Paper wipe