YSM40R_Mainte_E.pdf - 第107页
3-37 3 Periodic maintenance items 3.1.4 MU head: Applying grease to spline shaft (when required) n NOTE Basically, it is not necessary to apply grease to spline shaft (Z-axis) of MU head unit. However , if touching the s…
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3
Periodic maintenance items
3.1.2 MU head: Checking spline shaft Z-axis operation
This section describes how to check the spline shaft Z-axis operation of MU head.
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1
Move the head unit.
1. Press the emergency stop button and then open the machine safety cover.
2. Use the CLAMP ON/OFF switch to lower the feeder exchange carriage and detach it.
3. Move the head unit forward.
2
Move up/down spline shaft Z-axis.
Press down the bottom of joint block for
spline Z-axis with finger. It returns to the
original position by releasing finger.
Check that no heaviness, unsteady
movement, or abnormal sound compare to
the other spline shaft is found.
533G0-N9-00
TIP
Check the rear row heads by slightly lowering heads
near them.
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.
3.1.3 MU head: Checking/cleaning around spline shaft
Check and clean the area around the spline shaft of MU head.
e
1
Move the head unit.
1. Press the emergency stop button and then open the machine safety cover.
2. If the machine is carriage type, detach carriage to easily access to the head unit.
3. Move the head unit forward.
2
Visually check around spline shaft.
Check that no dust or dirt is found on the
spline shaft.
3
Clean the spline shaft.
If dust or dirt is on the spline shaft, wipe it
with lint-free paper or cotton swab.
3G1-N9-00
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 here with finger.
Joint block
Cleaning spline shaft
Step 3
Cotton swab
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Periodic maintenance items
3.1.4 MU head: Applying grease to spline shaft (when required)
n
NOTE
Basically, it is not necessary to apply grease to spline shaft (Z-axis) of MU 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.
e
1
Move the head unit.
1. Press the emergency stop button and
then open the machine safety cover.
2. Use the CLAMP ON/OFF switch to lower
the feeder exchange carriage and
detach it.
3. Move the head unit forward.
2
Clean the spline shaft.
Clean the spline shaft with lint-free cloth or
cotton swab.
3
Apply grease to the spline shaft.
Apply and spread thinly specified grease
(NSL) with finger uniformly over the shaft
surface.
533G2-N9-00
4
Wipe off the excess grease.
1. Move up/down the spline shaft several
times manually.
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 spline shaft
Step 3
Grease (Apply uniformly.)
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Periodic maintenance items
3.2 RS head
3.2.1 Inspecting/cleaning nozzle shaft tip
The dirt on nozzle tip may cause shaft operation error or nozzle change error. Therefore, perform visual
inspection and cleaning of shaft tip once every 3 months.
1
Prepare for work.
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1. Take off all accessories susceptible to magnetic fields, such as a wristwatch and magnetic ID card.
2. If the machine is equipped with nozzle station, store all nozzles to the nozzle station.
3. Press the emergency stop button and then open the machine safety cover.
4. Use the CLAMP ON/OFF switch to lower the feeder exchange carriage and detach it.
5. Move the head unit to convenient position to work and place a square cloth under the head unit.
TIP
See "How to lower RS head/nozzle shafts" for details.
2
Inspect shaft tip.
1. Turn the rotary so that the relevant nozzle
shaft locates under the Z-axis.
2. Press the Z-axis with finger to lower the
nozzle shaft.
3. (Without nozzle station) Detach nozzle
manually.
4. Check that no dirt is found on the
position shown at right.
53340-N9-20
TIP
Check the inside of shaft with hand mirror or similar tool.
3
Clean nozzle shaft tip.
1. Lower the nozzle shaft with the same
procedure as Step 2.
2. Wipe off dirt on nozzle shaft tip with
cotton swab. If the dirt still remains, apply
IPA to cotton swab and remove it.
533F5-N9-10
n
NOTE
If oil on shaft tip is removed due to cleaning, apply
specified oil to cotton swab and spread it uniformly.
See "3.2.2 Lubricating nozzle shaft tip" for lubricating all
nozzle shaft tips.
4
Inspect/clean rest of nozzle tips.
1. Inspect/clean rest of nozzle tips with the
same procedures as Step 2 to 3.
2. Remove square cloth after working.
c
CAUTION
Make sure that all nozzle shafts are raised up if lowered
them manually.
Inspecting shaft tip
Step2
Inspect visually here.
Press Z-axis with finger to
lower nozzle shaft.
Cleaning nozzle shaft tip
Step3
Clean here.