YSi-X_Ope_E - 第83页

4-22 4 Maintenance 5.3 Inspecting and cleaning the conveyor belt Inspect the convey or belt for wear . As the belt wears a way , slippages ma y occur that prevent securely conveying the boards. It is therefore necessary …

100%1 / 124
4-21
4
Maintenance
5.2.8 Cleaning and greasing the LY-axis guides
n
Required tools
• Lent-free cleaning wipe
• Grease gun
• Specified grease (NSL)
c
CAUTION
Wear protective glasses and gloves when handling grease.
e
1
Make the preparations for the
cleaning and greasing work.
1. Press the emergency stop button to put
the machine into emergency stop.
2. Open the [Unit]-[Conveyor] tab and
press the [Stopper] button to raise the
board stopper.
2
Open the front and rear safety
doors of the machine.
3
Clean the guides.
1. Move the conveyor table to the front
side and the X-ray camera table to the
rear side.
2. Wipe away the old grease and dirt from
the entire guide with a paper wipe.
3. Move the X-ray camera table to the front
side and wipe the rear guide as well.
53426-M6-00
c
CAUTION
Also wipe clean the slide groove of each guide.
4
Inject new grease.
Use the grease gun to inject the specified
grease (NSL) into the grease nipple.
There are two grease nipples each for the
left and right guides (total of 4 places).
53427-M6-00
n
NOTE
See Chapter 5, “Lubrication points”, for details on the
lubrication points and grease gun nozzles.
5
Wipe away excess grease
.
Move the X-ray camera table by hand to
the front and rear several times and then
wipe away excess grease with a paper
wipe.
Cleaning the LY-axis guide (front side)
Step 3
LY-axis guide Paper wipe
Lubricating the LY-axis guide (front side)
Step 4
LY-axis grease nipple (two each for front and rear)
4-22
4
Maintenance
5.3 Inspecting and cleaning the conveyor belt
Inspect the conveyor belt for wear. As the belt wears away, slippages may occur that prevent securely
conveying the boards. It is therefore necessary to make periodic checks for wear of the conveyor belt.
Belt wear may also cause trouble such as erroneous detection of the board 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.
n
Required tools
• Hex wrenches 4mm, 5mm
• Vacuum ASSY (option)
1
Change the conveyor width to a
convenient width for maintenance
work.
1. Open the [Unit]-[Conveyor] tab and
press the [Width] button to display the
"Conveyor" dialog box.
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.
54403-M6-00
e
2
Make the preparations for the
inspecting and cleaning work.
1. Press the emergency stop button to put
the m machine into emergency stop.
2. Open the [Unit]-[Conveyor] tab and
press the [Stopper] button to raise the
board stopper.
3
Open the front safety door of the
machine.
4
Loosen the tension on the conveyor
belt.
1. Place a square piece of cloth over the
guide and ball screw.
2. Use the hex wrenches (4 mm and 5mm)
to loosen the belt tension (tension pulley)
of the conveyor.
53428-M6-00
5
Remove the conveyor belt.
1. Use the hex wrenches (4 mm and 5mm)
to loosen the pulleys at both ends.
2. Remove the conveyor belt from the
pulley and the belt groove of the board
guide.
TIP
The belt can be removed when the pulleys at both
ends are loosened, so you do not have to loosen the
other pulleys.
6
Check for wear on the board
conveying side of the belt.
After removing the belt, check for wear on
the board conveying side of the belt.
Changing the conveyor width
Step 1
Loosen the tension on the conveyor belt
Step 4
Tension bolt
Tension pulley
4-23
4
Maintenance
7
Clean the pulley and the belt
groove on the board guide.
Using the vacuum assembly (option), suck in
belt wear dust particles from the belt groove
and the sensor detection surface. Also,
clean the pulleys and other parts for the
conveyor belt.
53429-M6-00
c
CAUTION
Though it rarely occurs, dust from belt wear might
sometimes adhere to and darken the outer
circumference of the pulley. If that happens, then
remove it with a metallic spatula, etc.
8
Reattach the belt.
Use the reverse of the removal procedure to
reattach the belt in place.
TIP
Proper belt tension and pulley pitch are as follows:
•
When a tension gauge is used
Tension 190 to 160Hz
Pulley pitch 128mm
•
When no tension gauge is used
Pulley pitch 35 to 38mm
See the next section 5.4, “Checking the conveyor belt
tension”, for more details.
c
CAUTION
The tightening torque for the tension pulley must be set
to 5.5N·m.
Cleaning the belt groove
Step 7
Belt groove