YG200_YG200L_Mainte_E - 第47页

3-7 3 Periodic maintenance items 3 . C l e a n t h e i n s i d e o f t h e p i n h o l e ( a i r p a t h ) i n t h e m i d d l e o f t h e b e v e l s h a f t b y p a s s i n g t h e c l e a n i n g w i r e t h r o u g h…

3-6

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

3-7

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

3-8

Periodic maintenance items

Check that the oil was removed.

If needed, blow air through the nozzle again

while placing commercially-available oil

blotting paper over the opposite end of the

nozzle, and check for residual oil in the

nozzle.

NOTE

Performing step 12 is usually sufﬁcient to remove oil

remaining in the nozzle. However, if oil still remains then

blow air through the nozzle once again.

53367-F8-00

Lubricate the bevel gear, shaft and

nozzle sliding section.

Use the lubrication syringe (KV8-M8870-00X)

and turbine oil (VG32) to lubricate at the

following locations.

1. Apply one drop of oil at each of the

bevel gear inner sides and shaft, and

then spread it with your finger.

2. On spring-action nozzles, apply a small

amount of oil at the sliding section and

jog it back and forth several times by

pushing the nozzle tip. Remove the

excess oil and then blow with air.

53316-F8-10

53317-F8-10

CAUTION

Do not lubricate the bevel gear section, as foreign

matter may get caught in the gear.

Check the nozzle spring-action.

If the spring-action is still poor even after

cleaning, replace the nozzle with a new

one.

Lubrication syringe

Step 14

Turbine oil (VG32)

Lubrication points on bevel gear

Step 14-1

Shaft

Lubricate with one drop of oil.

Step 13

Checking for residual oil

Oil blotting paper

Oil will appear after blowing air (first

time) for about 5 seconds from the

nozzle tip.

Repeat the air blow for about 5

seconds each from the nozzle tip

and from the attachment side.

This task is finished when oil no

longer appears.