YG200_YG200L_Mainte_E - 第46页

3-6 3 Periodic maintenance items 4 B l o w a i r i n t o t h e s p l i n e s h a f t . F o r Y G 2 0 0 : W h i l e b l o c k i n g t h e e x h a u s t a p e r t u r e o n t h e e j e c t o r v a l v e w i t h y o u r f i…

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Periodic maintenance items

1.2.2 Cleaning the FNC nozzle assembly

Disassemble the FNC nozzle

assembly.

Use the Phillips screwdriver (No.0 or No.00) to

remove the nozzle mounting screws, and

remove the nozzles and springs from the FNC

nozzle assembly.

53309-F8-00

CAUTION

The screwdriver bit size may slightly differ between

manufacturers. Use the screwdriver that matches the

recessed pattern on the screw head.

Take care not to lose the small spring inserted in the

spring-action nozzle.

Clean the parts with alcohol.

Immerse the nozzles, springs, nozzle brackets,

nozzle block, bevel gear and shaft and

standard nozzles in alcohol. Leave these

parts immersed in alcohol for about 3 to 5

minutes. In the meantime, clean the nozzle

shaft hole as explained in step 3.

CAUTION

Do not put the O-ring of the nozzle into alcohol. The

O-ring may stretch and become unusable when

immersed in alcohol.

Clean the nozzle shaft hole of the

FNC assembly.

While the parts are immersed in alcohol in

step 2, clean the index holder nozzle shaft

hole of the FNC heads as follows.

1. Clean the nozzle shaft hole with a cotton

swab moistened with alcohol and blow

air with an air blow gun (KU4-M8590-00X).

2. Brush the bevel gear of the index holder

with a toothbrush moistened with alcohol

and blow air with the air blow gun

(KU4-8590-00X).

53310-F8-00

53311-F8-00

CAUTION

Use lint-free cotton swabs that do not leave residue.

Disassembled FNC parts

Step 1

Nozzle bracket

Nozzle block

Spring

Nozzle tip

Type 201F Type 201F

Type 202F Type 202F

Type 203F Type 203F

Step 3-1

Cleaning the index holder nozzle shaft hole

Index holder

Cotton swab moistened with alcohol

Step 3-2

Cleaning the index holder nozzle shaft hole

Clean the bevel gear using a brush

moistened with alcohol.

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Periodic maintenance items

Blow air into the spline shaft.

For YG200:

While blocking the exhaust aperture on the

ejector valve with your finger, press the

[Blow] button for each head on the [Unit]-

[Head] tab screen. The inside of the spline

shaft is then blown with air.

53312F8-00

For YG200L:

On the [Unit]-[I/O] tab screen, select the

address of the exhaust stop valve for each

table and press the [ON/OFF] button to

block the exhaust apertures of all heads for

each table. The inside of each spline shaft is

then blown with air.

The exhaust stop valve address for each

table is as follows:

A-table T00023

B-table T08023

C-table T080A3

D-table T000A3

54300-F4-00

Take the parts out of the alcohol

container and clean them.

1. Clean the hole of the nozzle block by

passing the cleaning wire through it.

2. Clean the bevel gear, hole and surface

with a cleaning cloth, toothbrush and

cotton swab.

53313-F8-00

53314-F8-00

Air blow into spline shaft (YG200)

Step 4

Place finger over the exhaust hole of ejector valve.

[Blow] button

[Unit]-[I/O] tab screen (YG200L)

Step 4

Select the address.

Cleaning the nozzle block

Step 5-1

Nozzle block

Cleaning wire

Cleaning the bevel gear

Step 5-2

Bevel gear

Clean the bevel bear hole

with cotton swab

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Periodic maintenance items

3. Clean the inside of the pinhole (air path)

in the middle of the bevel shaft by

passing the cleaning wire through it and

also wipe the shaft surface with a

cleaning cloth.

4. Clean other parts with cloth.

53315-F8-00

Blow air onto the cleaned parts.

Use the air blow gun (KU4-M8590-00X) to

blow air onto the cleaned parts.

Check that the nozzles were

cleaned.

Check the nozzles for clogging, nicks and

foreign matter

• If the nozzle tip is still clogged, reclean it

with alcohol or cleaning wire (KV8-

M8883-A0X).

• If the nozzle tip is nicked or foreign

matter cannot be removed, replace the

nozzle with a new one.

Reassemble the FNC nozzle

assembly.

Use the Phillips screwdriver to reassemble

the nozzles onto the nozzle block.

CAUTION

Use the screwdriver that matches the recessed pattern

on the nozzle mounting screw head. Do not forget to

insert the spring into the nozzle block.

Clean the slide section.

Apply IPA (isoprophyl alcohol) or ethanol to

the slide section. Push the nozzle tip several

times to repeat the buffing action (spring

action) to clean the slide section. After

cleaning, blow sufficient air to remove IPA or

ethanol.

Lubricate the slide section.

Using a precision screwdriver or similar tool

with a pointed tip, apply a small amount of

turbine oil (just enough so that it sinks in) to

the slide section.

53365-F8-00

Check the buffing action (spring

action).

Push the nozzle tip several times to repeat

the buffing action and spread turbine oil.

Use a lint-free cleaning cloth to wipe away

excess oil from around the nozzle.

53366-F8-00

Remove excess oil remaining in the

nozzle.

Using an air blow gun, blow air for about 5

seconds from the nozzle tip, and for about 5

seconds from the nozzle attachment side.

Repeat this process a few times to remove

excess turbine oil remaining in the nozzle.

NOTE

A thin coat of oil is enough to lubricate the slide section.

Cleaning the bevel gear shaft

Step 5-3

Bevel gear shaft

Clean the air path hole

in the middle of shaft.

Lubricating the slide section

Step 10

Nozzle Precision screwdriver

(with a small amount of turbine oil applied)

Checking the spring action

Step 11

Spring action at nozzle tip