YS12P_YS12F_YG12F_Mainte_E.pdf - 第60页

3-8 3 Periodic maintenance items 2.3 Cleaning and greasing the X, Y and W axes (bimonthly) TocleanandgreasetheballscrewsandlinearguidesoftheX,YandWaxes,followthestepsbelow.Prepare agreasegunands…

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3-7
3
Periodic maintenance items
2.2 Inspecting each axis (monthly)
AgreasespatteringpreventioncoverisattachedtotheX-axisandY-axis.Beforestartingtheinspectionwork,
detachthisgreasespatteringpreventioncoverreferringto“Detachinggreasespatteringpreventioncover”
describedlateron.
TIP
For instructions on how to detach or attach the grease spattering prevention covers, refer to sections 2.3.1 and 2.3.2
described later on.
Checkpoints
1. Any foreign matter adhering to the ball screws and linear guides?
CheckifanyfallenchipshaveadheredtotheXandYaxisballscrewsand/orX,YandWaxislinearguides.
2. Do the ball screws and linear guides have the correct amount of grease?
Checkifgreasehasflowedofforsplatteredintheairfailingtoadhere.Alsocheckifgreasehasdiscoloredorhardened.
3. Any abnormal sounds from the ball screws?
Presstheemergencystopbutton.ThencheckforanyabnormalsoundswhilepressingtheX-axisorY-axisbyhand.
Countermeasures
1.Ballscrewsandlinearguidesmaybedamagedwhenchipsandothermaterialbiteintothem.Ifchipsareadhering,
wipethemoffalongwiththegreaseorremovewithtweezers,etc.
2.Applygreasewhilereferring“Cleaningandlubrication”describedlateron.
3.ConsultyourYAMAHAsalesofficeorrepresentativewhenabnormalsoundsoccurevenaftertryingthe
countermeasuresintheabovesteps1and2.
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its contents.
3-8
3
Periodic maintenance items
2.3 Cleaning and greasing the X, Y and W axes (bimonthly)
TocleanandgreasetheballscrewsandlinearguidesoftheX,YandWaxes,followthestepsbelow.Prepare
agreasegunandspecifiedgrease(NSL).
c
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2.3.1 Cleaning and greasing the X, Y and W axis ball screws
e
1
Press the emergency stop button.
The machine must be in emergency stop to
ensure safety during work.
2
Remove the ball screw covers.
Remove the X-axis and Y-axis ball screw
covers used for preventing grease
spattering.
X-axis
1. Use a Phillips screwdriver to remove the
screws securing the left side of the
grease spattering prevention cover.
2. Move the head all the way to the left
side and remove the screws securing the
right side of the grease spattering
prevention cover.
3. Remove the grease spattering prevention
cover by pulling it to the right.
53305-L6-00
TIP
When reattaching the X-axis grease spattering
prevention cover, use the reverse order of the above
procedure.
Y1 and Y2 axes
1. Use the hex wrench to remove the bolts
securing the rear side of the grease
spattering prevention cover.
2. Move the head all the way to the rear
side and remove the bolts securing the
front side of the grease spattering
prevention cover.
3. Remove the grease spattering prevention
cover by pulling it to the front.
53306-L6-00
TIP
When reattaching the Y-axis grease spattering
prevention covers, use the reverse order of the above
procedure.
Removing the X-axis grease spattering prevention cover
Step 2
Phillips screwdriver
Y-axis ball screw cover
Step 2
Y-axis ball screw
cover mounting bolt
Y-axis motor
Removing the Y-axis grease spattering prevention cover
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3
Periodic maintenance items
3
Clean the ball screws.
1. Using the handle, move the head to one
end of each axis.
2. Wipe away the old grease and dirt from
the ball screw with a lint-free cloth or
paper towel (for clean room use).
3. Move the head to the opposite end of
each axis (X, Y and W axes) and wipe the
ball screw clean.
53307-L6-00
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Wipe away the old grease and dirt in the lead groove of
the ball screw. Also check that no debris or residue
remains in the lead groove.
Cleaning the ball screws
Step 3
Wipe with cleaning cloth, etc.
X-axis
Y-axis
W-axis
Wipe with cleaning cloth, etc.
Wipe with cleaning cloth, etc.