YRM20_Mainte_E.pdf - 第69页
1. Weekly maintenance 3-2 Chapter 3 Periodic maintenance items 1.1.2 Check the condition of nozzle leaf spring Inspect the nozzle holding condition of head periodically . When the holding ability of nozzle leaf spring (h…
1. Weekly maintenance
3-1
Chapter 3 Periodic maintenance items
1. Weekly maintenance
Here describes the maintenance items required to perform once a week.
1.1 Nozzle inspection
The troubles of buffing movement (spring movement) or nozzle leaf spring lead the pickup error. Perform the
inspection of each nozzle to prevent the troubles.
1.1.1 Slide section inspection
Check the nozzle buffing condition. It does not matter when a nozzle returns to its normal position upon
pushing, but when it does not, pickup error or recognition error may occur.
c
Caution
- Touching the nozzle tip directly by finger may cause adherence of oil or so. Use such as a flat plate instead.
- Upon pushing a nozzle tip to check its condition, do not push too much. It is enough when a nozzle returns after it is
pushed approximately 1mm.
Nozzle sliding condition
8104A nozzle as example
Standard position
of nozzle tip
Not return well, or
Not return
Disassembling cleaning, or
replacement of spring is required
Replacement of nozzle tip is required
Fault
Returns smoothly,
but the tip is broken
Fault
Tip becomes short
by chipping
Spring does not
operate well
Plate like material with
flat and smooth surface
53300-KMX-00
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NOTE
See chapter 5 "1.1 Replacing nozzle tip and spring" for details of replacement of spring and nozzle tip.
1. Weekly maintenance
3-2
Chapter 3 Periodic maintenance items
1.1.2 Check the condition of nozzle leaf spring
Inspect the nozzle holding condition of head periodically. When the holding ability of nozzle leaf spring
(hereinafter referred to as leaf spring) is not stable, it creates adverse effect to all the picking up, recognition,
and mounting.
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Inspetion items for leaf spring
Attach/detach the nozzle from nozzle station and check the following items.
• Has enough nozzle holding ability
• No clearance between the leaf spring and nozzle
• No deformation, or wearing at the contact point with nozzle
• No looseness at mounting screw of leaf spring
Inspection items for leaf spring
No looseness at mounting screw
No gap
No deformation or wearing
53301-KMK-00
n
NOTE
When some items above have problem, see Chapter 5 "2.1 HM head: Replacing nozzle leaf springs"and replace the
leaf spring. Even when one side of leaf spring deteriorates, essentially the both of one pair should be replaced.
n
NOTE
When the nozzles are removed from head or nozzle station, they should be returned to their original position.
1. Weekly maintenance
3-3
Chapter 3 Periodic maintenance items
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Nozzle holder (removable)
The nozzle station for YRM20 (optional) is consisted of the base unit and nozzle holder (hereinafter
referred to as holder) illustrated below, so that the nozzles can be removed by whole holder installed.
Detach the whole holder when all the nozzles are required to be removed for maintenance work or so,
or when the offline setup is required.
Nozzle holder detached
Base unit
Shutter
ANC MACS
ANC MACS
Nozzle station
Nozzle holder (removable)
Nozzle holder (removable)
QR code label
53310-KMK-10
►
Precaution for using removable holder
• Avoid soiling or scratching the QR label and ANC mark upon attaching/detaching the holder.
• The shutter should be closed upon attaching/detaching the holder.
• Confirm there is no chip or dirt in the holder upon storing nozzles.
• Confirm there is no chip or dirt at base section upon attaching the holder.