YS12P_YS12F_YG12F_Mainte_E.pdf - 第89页
4-2 4 How to replace consumable parts 2. Ejector unit 2.1 Replacing an ejector bit 1 Shut off the air supply . T ur n the air supply/shutof f v alve inside t he machine lo wer left panel to the right, to stop the air sup…
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How to replace consumable parts
1. Replacing nozzle leaf springs
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1
Press the emergency stop button.
The machine must be in emergency stop to
ensure safety during work.
2
Remove the nozzle.
Remove the nozzle attached to the leaf
springs to be replaced, by pulling it
downwards by hand.
3
Remove the leaf springs.
Use a Phillips precision screwdriver to loosen
the screws securing the defective leaf
springs and remove the leaf springs from the
nozzle holder while pressing the nozzle shaft
from the back.
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4
Attach new leaf springs.
While pressing the nozzle shaft from the
back, tighten the screw with the Phillips
precision screwdriver to assemble the leaf
spring.
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Always attach the leaf springs so that they become
parallel.
5
Reattach the nozzle.
6
Check that the nozzle is held
securely.
1. Check that there is no gap between the
leaf springs and nozzle.
2. Attempt detaching and attaching the
nozzle several times to check that there
is no looseness.
Step 3
Nozzle holder
Removing nozzle leaf springs
Nozzle leaf
spring mounting
screw
Nozzle leaf spring
Attaching nozzle leaf springs
Step 4
Leaf spring
Precision screwdriver
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How to replace consumable parts
2. Ejector unit
2.1 Replacing an ejector bit
1
Shut off the air supply.
Turn the air supply/shutoff valve inside the
machine lower left panel to the right, to stop
the air supply.
2
Move the head to a convenient
position for replacement work.
3
Remove the baffle plate.
Use the hex wrench to remove the bolts
securing the baffle plate and remove the
baffle plate.
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4
Pull out the ejector bit by hand.
Remove the cap by turning it to the left with
a hex wrench. The end of the bit is seen
sticking out of the ejector unit. Pull out the
bit by hand.
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The removed bit cannot be reused. Reuse may cause
component pickup errors.
5
Clean the bit installation hole.
Remove dust or grime in the installation hole
using an air blow gun (available as an
option), lint-free cotton swab, etc.
6
Install a new bit.
Fit an O-ring to the new bit and install one
end of the bit into the cap. Then insert the
bit into the installation hole and close the
cap by turning it to the right.
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vacuum is turned on. Always make sure that the bit is
securely installed.
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7
Reattach the baffle plate.
Use the hex wrench to Install the baffle plate
in the original position.
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Supply air to the machine.
Turn the air supply/shutoff valve inside the
machine lower left panel to the left, to start
the air supply.
Removing the baffle plate
Step 3
Baffle plate
Removing the bit
O-ring CapBit
Step 4
Bit installation hole
Installing the bit
O-ring
Step 6
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How to replace consumable parts
2.2 Replacing a solenoid coil
1
Turn off the air supply and the
power to the machine.
Quit the software and turn off the machine
power switch. Then turn the air supply/shutoff
valve inside the machine lower left panel to
the right, to stop the air supply.
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2
Move the head to a convenient
position for replacement work.
3
Disconnect the connectors of the
ejector harness.
Disconnect all connectors of the ejector
harness.
4
Remove the solenoid coil to be
replaced.
Use a precision Phillips screwdriver to loosen
the two screws securing the solenoid coil
and then remove the solenoid coil.
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Attach a new solenoid coil.
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6
Reconnect the ejector harness.
Reconnect the connectors of the ejector
harness.
7
Supply air to the machine and turn
on the machine power.
When the machine has started, perform
return-to-origin.
8
Check the operation.
Generate a negative pressure (vacuum)
with the same procedure described in 3.1.2,
"Checking the blow valve operation" in
Chapter 3, and check that no abnormal
values appear.
Shutting off the air supply
Step 1
Air supply/shutoff
switch
Removing the solenoid coil
Step 4
Precision Phillips screwdriver
Solenoid coil
Gasket