YG100R_Mainte_E.pdf - 第74页
4-5 4 How to replace consumable parts 4 D i s c o n n e c t t h e a i r h o s e s f o r t h e v a l v e u n i t . A s s h o w n i n t h e p h o t o , d i s c o n n e c t t h e t h r e e a i r h o s e s l o c a t e d o n …
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How to replace consumable parts
3. Replacing the ejector valves
1
Shut off the air supply and turn off
the machine.
Turn the air supply/shutoff switch to the right
to cut off the air supply, quit the software,
and turn off the machine power switch.
53405-F9-10
2
Unplug the valve unit connectors.
Unplug two wire harness connectors (CN9,
CN11) that connect the valve unit to the I/O
board on the head assembly.
53407-F9-10
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CAUTION
Thin harness wires are connected to the connector
housing. Be careful not to break those wires.
Unplug the connector by holding the connector
housing itself. Do not pull on the wire harness.
3
Disconnect the air tubes.
As shown in the photo, disconnect the air
tube inserted into the fitting at the top of
each spline shaft.
53406-F9-10
Step 1
Shutting off the air supply
Air supply/shutoff switch
Step 3
Disconnecting the air tubes
Step 2
Unplugging the valve unit connectors
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How to replace consumable parts
4
Disconnect the air hoses for the
valve unit.
As shown in the photo, disconnect the three
air hoses located on the upper right of the
head assembly.
53408-F9-10
5
Remove the valve unit from the
head assembly.
1. Use the M5 hex wrench to remove the
four bolts securing the valve unit to the
base. (Two bolts each on the right and
left sides)
2. Slightly lift up the valve unit and remove
it from the head assembly.
53409-F9-10
Step 4
Disconnecting the air hoses
Disconnect at these 3 points.
Step 5
Removing the valve unit
Remove bolts with hex wrench.
Valve unit removed
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How to replace consumable parts
6
Unplug the connectors for the
ejector operate valve and blow
valve.
53410-F9-10
7
Remove the blow valve.
Use the precision Phillips screwdriver to
loosen the two screws securing the blow
valve and then remove the blow valve. You
will see the two screws securing the ejector
valve.
53411-F9-10
Reference
To replace an ejector valve, the blow valve attached
to that ejector valve must first be removed.
8
Remove the ejector valve.
Use the precision Phillips screwdriver to
loosen the two screws securing the ejector
valve and remove the ejector valve.
53413-F9-10
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CAUTION
Be careful not to drop the gasket fitted to the backside
of the ejector valve.
9
Attach a new ejector valve.
Use the precision Phillips screwdriver to
tighten the two screws to secure the new
ejector valve.
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CAUTION
Do not forget to fit the gasket in place. Use caution not
to fit the gasket inside-out or to pinch it.
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Reassemble the valve unit in the
reverse order of the above
procedure.
Reconnect the air hoses and connectors
back to their original positions.
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Check the operation.
After reassembling the valve unit, supply air
to the machine and turn on the machine
power switch. Then check that the vacuum
levels are normal, using the procedure
described in step 5 of section 3.2.2,
"Lubricating the slide section and checking
the negative pressure", in Chapter 3.
Step 7
Removing the blow valve
Ejector valve mounting screws
Blow valve
Step 8
Removing the ejector valve
Precision Phillips screwdriver
Ejector valve
Step 6
Unplugging the connectors
Blow valve connector
Ejector operate valve connector