YRM20_Mainte_E.pdf - 第96页

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…

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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
3. 3-month maintenance items
3-30
Chapter 3 Periodic maintenance items
3.2 RM head unit
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. Remove all items sensitive to magnetic fields such as wristwatches and magnetic ID cards.
2. If the machine is equipped with nozzle station, store all nozzles to the nozzle station.
3. Press the emergency stop button, detach the feeder exchange carriage, then open the machine safety cover.
4. Move the head unit to convenient position to work and place a square cloth under the head unit.
n
NOTE
See "Lowering RM head/nozzle shafts" above for details of the lowering RM head nozzle shaft.
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. (When the nozzle station is not equipped)
Detach nozzle manually.
4. Check that no dirt is found on the position
shown at right.
TIP
Check the inside of shaft with a hand mirror or the similar.
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.
Apply small amount of ethanol on cotton
swab for heavy dirt.
c
CAUTION
Return the nozzle shaft slowly after it is lowered by hand,
as the nozzle shaft tends to strike upon returning.
4
Inspect/clean rest of nozzle tips.
1. Inspect/clean rest of nozzle tips with the
same procedures as Step 2 to 3.
2. Retrieve a square cloth after working.
c
CAUTION
Make sure that all nozzle shafts are completely raised up
after they returned.
5
Return the nozzles to their removed
positions if they are removed by hand
from heads.
Step2
Inspecting shaft tip
Check here
visually
Press the Z-axis
with finger to lower
the nozzle shaft
53340-KMX-10
Step3
Cleaning shaft tip
Clean here
533F5-KMX-10