YSM20R_YSM20WR_Mainte_E - 第82页

3-21 3 Periodic maintenance items 3.2 Checking ejector vacuum level Check the ejector v acuum level of each head. If the vacuum lev el does not reach at the specified lev el, it may be required to replace the ejector bit…

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3-20
3
Periodic maintenance items
3. 3-month maintenance
This section describes 3-month maintenance items.
3.1 Cleaning and replacing air filter
As a general guideline, the filter should be inspected once every 3 months, although this may vary depending
on the air supply conditions and the operating time. If lightly soiled, the filter can be clean by using the air
blow tool (option). The filter should be replaced when it can no longer be adequately cleaned by air-blowing.
1
Move the head unit.
1. Take off all accessories susceptible to the
magnetic fields, such as a wristwatch
and magnetic ID card.
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2. Press the emergency stop button and
then open the machine safety cover. If
the machine is carriage type, detach
carriage to easily access to the head unit.
3. Move the head unit to a convenient
position for maintenance work.
4. Place a square cloth under head unit.
2
Detach the baffle plate.
Use a Phillips screwdriver to detach the
baffle plate shown in the figure on the right.
3
Detach the filter cap.
Turning the filter cap counterclockwise will
remove it together with the filter.
4
Clean the filter.
If the filter is only lightly soiled, it can be
cleaned with the air blow tool, and then
reused.
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NOTE
If there are heavy dust deposits in the filter or the filter
has discolored, replace it with a new filter (KLW-M8527-
00X).
5
Attach the filter cap.
1. Fit the filter into the filter cap.
2. Insert the filter cap into its original
position and turn it clockwise to secure it.
3. Remove the square cloth.
n
NOTE
When attaching the filter, check also the status of the
gasket (KLW-M715B-00X). If the gasket deteriorates or is
deformed, replace it with a new one.
6
Attach the baffle plate.
1. Attach the baffle plate to the original
position with Phillips screwdriver.
2. Remove the square cloth.
Detaching the baffle plate
Step 2
Baffle plate
FM head
HM head
53330-KMK-00
Detaching the filter cap
Step 3
Filter cap
Filter
FM head
HM head
53331-KMK-00
Cleaning the filter
Step 4
Filter
Air blow tool
To air connector
53332-KMK-00
3-21
3
Periodic maintenance items
3.2 Checking ejector vacuum level
Check the ejector vacuum level of each head.
If the vacuum level does not reach at the specified level, it may be required to replace the ejector bit or valve.
Replace them referring to "6.1 Replacing the ejector bit" in chapter 3 or "3.1 HM head: Replacing valves" and
"3.2 FM head: Replacing valves" in chapter 6.
n
Example: HM head unit
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1
Move head unit forward.
1. Press the emergency stop button and
then open the machine safety cover. If
the machine is carriage type, detach
carriage to easily access to the head unit.
2. Move the head unit to convenient
position for maintenance work.
2
Disconnect air hoses from upper
air joints.
Disconnect all air hoses from upper air joints.
Do not disconnect air hoses from lower air
joints.
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NOTE
Air hoses are connected to the holders on rear of front
cover of head unit. Make sure that air hoses will not
come off the holders.
3
Check vacuum level of each head.
1. Open [Unit] - [Head] screen.
2. Select desired head unit from "Table
Select".
3. Press the [Vacuum] buttons of all heads.
4. Cover the air joint with finger.
5. The vacuum level when sealed appears
in "Max" at the center of the screen.
Check that the measurement reference
value when sealed is "190" or more.
TIP
When the vacuum level does not reach at the
measurement reference value, review the air path
(ejector/valve) of the head. Then clean or replace it as
needed.
4
Return air hoses to the original
positions.
Disconnecting air hoses
Step 2
Air hose
Air joint
Head unit front cover
53397-KMK-00
Checking vacuum level
Step 3
Press [Vacuum] buttons of each head.
Check “Max” vacuum levels.
Cover air joint with finger.
Table Select
54312-KMK-00
3-22
3
Periodic maintenance items
3.3 Operation check of blow valves for heads/cleaning
Perform the operation check of valves of head unit.
The valves of head unit include 2 types. The blow valve blows per head. The blow valve for cleaning blows
strongly to clean the inside of the shaft. When the valve operation is unstable, it needs to be replaced. See
"3.1 HM head: Replacing valves"and "3.2 FM head: Replacing valves"in chapter 6 to replace valve.
c
CAUTION
As the blow valve for cleaning exhausts strong air, make sure to remove nozzles before cleaning with air blow.
If not, nozzles come off from the head and they may be damaged or lost.
1
Remove nozzles from all heads.
1. Open [Unit] - [Head] screen.
2. Select desired head unit from "Table
Select".
3. Press the [Nozzle Change] button.
4. Select "ALL" for Head Number and select
"Store nozzle" for Nozzle type on "Nozzle
Change" screen.
5. Pressing the [OK] button stores nozzles of
all heads to the nozzle station.
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NOTE
If the nozzle station is not equipped with the machine,
open the machine safety cover and remove nozzles
manually.
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2
Move head unit forward.
1. Press the emergency stop button and
then open the machine safety cover.
2. If the machine is carriage type, detach
carriage to easily access to the head unit.
3. Move the head unit to convenient
position for maintenance work.
3
Air blow each head.
Open [Unit] - [Head] screen and press [Blow]
buttons of all heads.
4
Check blow operation.
Place a hand under each head to check
that air blows uniformly from all heads. If
light air blows compare to other heads or air
does not blow, the valve needs to be
replaced.
See "3.1 HM head: Replacing valves" and
"3.2 FM head: Replacing valves" in chapter 6
to replace valve.
Checking blow operation
Step 3,4
Checking air blow of heads
Press [Blow] buttons of heads.
54314-KMK-00
Storing nozzles
Step 1
Head Number: “ALL” / Nozzle type: “Store Nozzle”
[Nozzle Change] button
Table Select
54313-KMK-00