YRM20_Mainte_E.pdf - 第95页

3. 3-month maintenance items 3-28 Chapter 3 Periodic maintenance items 3.1.5 Checking the spline shaft Z-axis operation T his section describes how to chec k the operation of spline shaft Z-axis of HM head. 1 Mov e t he …

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3. 3-month maintenance items
3-27
Chapter 3 Periodic maintenance items
3.1.4 Inspecting shaft tips
The shaft tip section of HM head may get dirty due to the long-term use, so that they should be inspected
periodically.
1
Detach all the nozzles from head.
When a nozzle station is equipped.
1. Open the [Unit] - [Head] screen.
2. Select any head unit from "Table Select".
3. Press the [Nozzle Change] button.
4. Select "ALL" for "Head Number" and select
"Store Nozzle" for "Nozzle Type" on the
"Nozzle Change" screen.
5. Press the [OK] button to return all nozzles to
the nozzle station.
n
NOTE
When the nozzle station is not equipped, open the
machine safety cover and detach the nozzles by hand.
e
2
Move the head unit to machine front
side.
1. Press the emergency stop button and detach
the feeder exchange carriage.
2. Open the machine safety cover and move
the head unit to convenient position to work.
3
Check the shaft tips visually for all the
heads using a hand mirror or the similar.
TIP
When the shaft tips are soiled, clean them up referring to
"5.4 HM head: cleaning the shaft tip" described below.
4
Return the nozzles to their removed
positions if they are removed by hand
from heads.
Storing nozzle
Step 1
Select “ALL” for Head Number, “Store Nozzle”for Nozzle Type
[Nozzle Change] button
Table Select
54313-KMX-00
Checking the shaft tips
Step 3
Hand mirror
53398-KMX-00
3. 3-month maintenance items
3-28
Chapter 3 Periodic maintenance items
3.1.5 Checking the spline shaft Z-axis operation
This section describes how to check the operation of spline shaft Z-axis of HM head.
1
Move the head unit.
e
1. Press the emergency stop button and detach
the feeder exchange carriage
2. Open the machine safety cover and move
the head unit to convenient position to work.
2
Move up and down the spline shaft
Z-axis by pressing down the bottom of
joint block of spline shaft Z-axis with
finger. Check that no heaviness,
unsteady movement, or abnormal sound
compared to other spline shaft is found.
n
NOTE
Do not touch the shaft as the surface may get rusted if
lacking grease.
c
CAUTION
Fatal error may occur if operating a machine with
unsteady movement of spline shaft. Stop the machine in
this case and contact YAMAHA sales representatives.
3.1.6 Checking/cleaning around spline shaft
Check and clean the area around the spline shaft of head.
e
1
Move the head unit.
1. Press the emergency stop button and detach
the feeder exchange carriage.
2. Open the machine safety cover and move
the head unit forward.
2
Visually check around spline shaft that
no dust or dirt is found on the spline
shaft.
3
Clean the spline shaft when dust or dirt
is found, by wiping with a lint-free
paper or cotton swab.
c
CAUTION
Do not completely wipe off grease on spline shaft surface
as the surface may get rusted due to the lack of grease.
However, apply grease for anti-rust with the procedure on
next page if the grease is wiped off due to cleaning.
Checking Z-axis operation
Step 2
Press down with finger
Joint block
53333-KMX-00
Cleaning spline shaft
Step 3
Cotton swab
53334-KMX-00
3. 3-month maintenance items
3-29
Chapter 3 Periodic maintenance items
3.1.7 Applying grease to spline shaft
█
Perform this procedure as necessary.
Basically, it is not necessary to apply grease to spline shaft (Z-axis) of HN head unit. However, if
touching the shaft surface or solvent sprayed on it, the grease is removed and rust may appear.
Slightly apply specified grease (NSL) for anti-rust as needed.
1
Move the head unit.
e
1. Press the emergency stop button and detach
the feeder exchange carriage.
2. Open the machine safety cover and move
the head unit to convenient position to work.
2
Clean the spline shaft using a lint-free
cloth or cotton swab.
3
Apply grease to the spline shaft by
spreading thinly the specified grease
(NSL) with finger uniformly over the
shaft surface.
4
Wipe off the excess grease.
1. Move up/down the spline shaft several times
by hand.
2. Wipe off excess grease on top and bottom
of the spline shaft with lint-free cloth or
cotton swab.
c
CAUTION
Make sure not to wipe off grease on spline shaft surface
completely.
Applying grease to the spline shaft
Step 3
Apply uniformly
53335-KMX-00