YS24_Mainte_E.pdf - 第101页

3-37 3 Periodic maintenance items 4.5.3 Lubricating the spline shaft (as needed) n NOTE Basically, the lubricating the spline shaft (Z-axis) is not required. However , the grease on the spline shaft sur face is removed b…

100%1 / 157
3-36
3
Periodic maintenance items
4.5 Checking spline shaft operation
4.5.1 Checking spline shaft Z-axis operation
The following describes the operation inspecting of the spline shaft Z-axis.
e
1
Move the head unit.
1. Press the emergency stop button and then open the machine safety cover.
2. If the machine is equipped with a carriage, remove the carriage to allow you to easily access the
head.
3. Move the head unit forward.
2
Move spline shaft Z-axis up or
down.
Press down the lower part of the joint block
of the spline shaft Z-axis with finger. The joint
block 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.
533F1-L2-00
n
NOTE
If lacking grease on the surface of the spline shaft, the
surface may get rusted. Make sure not to touch the
shaft area.
c
CAUTION
If operating machine with the unsteady movement of
the spline shaft may cause fatal accidents. Stop
operating the machine if any abnormality is noticed
and contact YAMAHA sales representative.
4.5.2 Checking and cleaning around spline shaft
Check the area around the spline shaft.
e
1
Move the head unit.
1. Press the emergency stop button and then open the machine safety cover.
2. If the machine is equipped with a carriage, remove the carriage to allow you to easily access the
head.
3. Move the head unit forward.
2
Visually check around the spline
shaft.
Check that no dust or dirt is found on the
spline shaft.
3
Clean the spline shaft.
If dust or dirt is found on the spline shaft,
wipe it with a lint-free cloth or a cotton
swab.
533F2-L2-00
c
CAUTION
If lacking grease on the surface of the spline shaft, the
surface may get rusted. Make sure not to wipe away
grease completely. However, if the grease is lacking
due to cleaning, apply anti-rust lubricant with the
procedure on the next.
Moving Z-axis
Step 2
Press down here with finger.
Joint block
Cleaning the spline shaft
Cotton swab
Step 3
3-37
3
Periodic maintenance items
4.5.3 Lubricating the spline shaft (as needed)
n
NOTE
Basically, the lubricating the spline shaft (Z-axis) is not required. However, the grease on the spline shaft surface is
removed by touching with hand or by sprinkling solvent. As a result, the spline shaft gets easily rusted. Apply the
specified grease (NSL) slightly for anti-rusting as needed.
e
1
Move the head unit.
1. Press the emergency stop button and
then open the machine safety cover.
2. If the machine is equipped with a
carriage, remove the carriage to allow
you to easily access the head.
3. Move the head unit forward.
2
Clean the spline shaft.
Wipe the spline shaft with a lint-free cloth or
a cotton swab.
533F5-L2-00
3
Apply grease to spline shaft.
Apply the specified grease to finger slightly.
Spread the grease uniformly over the
surface of the shaft.
53335-L2-10
4
Wipe away grease.
1. Move the spline shaft up or down
manually.
2. Wipe away excess grease on the upper
and lower area of the shaft with a
lint-free cloth or a cotton swab.
c
CAUTION
Make sure not to wipe away the grease on the surface
of the spline shaft completely.
Cleaning the spline shaft
Step 2
Cotton swab
Applying grease to spline shaft
Step 3
Spline shaft
3-38
3
Periodic maintenance items
4.6 Checking the SC-axis flex cable
The SC-axis flex cable is a flat multi-cable designed for rigidity to prevent the harness from drooping as it
moves along with the scan camera. However, the cable may eventually droop due to warping or weakening
from long-term use. If cable drooping occurs, then the cable may come in contact with moving parts and cause
trouble. We recommend making periodic checks and replacing the cable if drooping becomes obvious.
SC-axis unit
Checking the SC-axis flex cable condition
Scan camera
Check for drooping
in the flex cable.
Head assembly
No drooping allowed
in the flex cable.
53351-L2-10
n
NOTE
If drooping in the SC-axis flex cable becomes obvious, contact YAMAHA sales representative.