YG300_Mainte_E - 第62页
3-24 3 Periodic maintenance items 3 . 2 C l e a n i n g a n d l u b r i c a t i n g t h e i n s i d e o f t h e s p l i n e s h a f t D u s t o r g r i m e a d h e r i n g t o t h e a i r p a t h o f t h e s p l i n e s …

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3
Periodic maintenance items
3. 3-month, 6-month or one-year inspection
3.1 Cleaning and replacing the ejector filter
Although depending on the air supply conditions and operating time, ejectors should be inspected once every
6 months. Use an air blow gun to remove dust buildups when small. We recommend replacing the air filter if
heavy dust deposits are found.
e
1
Press the emergency stop button.
The machine should be in emergency stop
to ensure safety during work.
2
Remove the filter cap.
Loosen the filter cap with the M5 hex wrench
and remove it by hand.
53340-F1-00
3
Clean the filter.
Use tweezers to take the filter out of the
ejector. When there is only a little dust in the
filter, use an air blow gun to blow it away
and return the filter back to the original
position.
53341-F1-00
4
Replace the filter as necessary.
If there are heavy dust deposits in the filter
or the filter has discolored replace with a
new filter (K46-M8527-C0X).
n
NOTE
As a general guide, filters should be replaced once
every 6 months, although this depends on the actual
operating time.
5
Reattach the filter cap.
1. Fit the filter into the filter cap and insert it
into the ejector.
2. Turn the filter cap to the right until it locks
and clicks.
53342-F1-00
c
CAUTION
Before inserting the filter, check that the O-ring is
placed in the ejector.
Removing the filter cap
Step 2
Hex wrench (M5)
Cleaning the filter
Step 3
Air blow gun
Filter
Inserting the filter
Step 5
Filter fitted into the cap O-ring

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3
Periodic maintenance items
3.2 Cleaning and lubricating the inside of the spline shaft
Dust or grime adhering to the air path of the spline shaft may cause component pickup or mounting errors.
Although depending on the air supply conditions and operating time, the inside of the spline shaft should be
cleaned once every 3 months.
3.2.1 Cleaning the inside of the spline shaft
1
Remove the nozzles from all heads.
2
Disconnect the air tube from each
spline shaft.
As shown in the photo, disconnect the air
tube inserted into the fitting at the top of
each spline shaft.
53343-F1-00
3
Remove the maintenance bolt.
Use the hex wrench to loosen and remove
the maintenance bolt in the center on the
top of each spline block.
53344-F1-00
4
Prepare the cleaning kit (KHW-
M8860-00X).
1. Pour IPA (isopropyl alcohol) into the
container of the cleaning kit.
2. Place a paper cup or tray under the
heads to be cleaned. (This prevents IPA
from flowing out downwards in step 6.)
53348-F1-00
c
CAUTION
The cleaning kit (KHW-M8860-00X) supplied with the
YG300 is exclusive use for the YG300. Do not use this
cleaning kit for other machines. If accidentally used for
other machines, this may clean away the lubricating
grease applied to the packings assembled in the
splines and pistons, resulting in wear of the packings
and causing serious trouble.
Disconnecting the air tubes
Step 2
Removing the maintenance bolt
Maintenance bolt Hex wrench
Step 3
Cleaning kit exclusive for YG300
Step 4
Green cap
Transparent tube
Nozzle

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3
Periodic maintenance items
5
Lower the spline block.
Lower the spline block to the lower end.
53345-F1-00
n
NOTE
To make the cleaning work easier, insert air tubes or
similar items as shown in the photo on the right, so that
the spline block is held in the lower end position. (Air
tube length: 39mm)
6
Clean the inside of each spline
shaft.
1. Insert the nozzle of the cleaning kit into
maintenance hole until the nozzle stops.
2. Pour alcohol (IPA) into the maintenance
hole to clean away dust and grime from
the air path of each spline shaft.
53349-F1-00
7
Blow air into the spline air path.
Using the air blow gun, blow air into the
spline air path from the maintenance hole
(hole from which the maintenance bolt was
removed in step 3).
8
Repeat the above procedure.
Disconnect the air tube and repeat step 6
and then step 7 until the IPA flowing out from
the spline shaft becomes clean.
9
Reinstall the maintenance bolt.
Install the maintenance bolt in the reverse
order of step 3.
0
Reconnect the air tube to each
spline shaft and reattach all
nozzles.
Spline block positioned at lower end
Step 5
Air tube, etc.Spline block
Cleaning the spline shaft
Step 6
Paper cup
Insert the cleaning nozzle.