YS12P_YS12F_Mainte_E.pdf - 第79页

3-14 3 Periodic maintenance items 3 Clean the ball screws. 1. Grasp the carrying handle to move each axis to one end. 2. Wipe away the old grease and dirt from the ball screw with a lint-free cloth that does not raise du…

3-13

Periodic maintenance items

3. Two-month inspection

3.1 Cleaning and greasing the X and Y axis

This section describes how to clean and grease the X and Y axes. See "Chapter 5 Lubrication points and

schedule" for lubrication points and lubrication form. Prepare a grease gun and specified grease (NSL).

CAUTION

When handling grease or lubricant, read and follow the precautions in the "Safety instructions" and Section"2.2.2

Lubricating tools and grease" in Chapter 1.

CAUTION

If abnormal sound is heard from the X and Y axis ball screws or guides, contact YAMAHA sales representative.

Disassembly and cleaning of the ball screws or guides by the user will void the warranty.

3.1.1 Cleaning and greasing the X and Y axis ball screws

Prepare for maintenance work.

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 easily

access to the X axis and Y axis.

Remove the anti grease splatter

covers.

Remove the anti grease splatter covers of X,

Y1, and Y2 axes.

X-axis

1. Use a Phillips screwdriver to remove the

screws mounting the left side of the anti

grease splatter cover.

2. Move the head unit all the way to the

left side and remove the screws

mounting the right side of the anti grease

splatter cover.

3. Remove the anti grease splatter cover

by pulling it to the right.

53305-L6-00

TIP

When reattaching the X-axis anti grease splatter cover,

use the reverse order of the above procedure.

Y1 and Y2 axes

1. Use the hex wrench to remove the screws

mounting the rear side of the anti grease

splatter cover.

2. Move the head unit all the way to the

rear side and remove the screws

mounting the front side of the anti grease

splatter cover.

3. Remove the anti grease splatter cover

by pulling it to the front.

53306-L6-00

TIP

When reattaching the Y-axis anti grease splatter 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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Periodic maintenance items

Clean the ball screws.

1. Grasp the carrying handle to move each

axis to one end.

2. Wipe away the old grease and dirt from

the ball screw with a lint-free cloth that

does not raise dust (for clean room use).

3. Move the axes to the opposite end and

wipe the opposite side ball screw clean

(X and Y axes).

53307-L6-10

NOTE

Carefully wipe the lead grooves of the ball screws

during the cleaning work. Additionally, make sure that

any dirt is not produced.

Apply grease to the ball screws.

X-axis

Use the grease gun (with Standard nozzle) to

supply the specified grease (NSL) to the

grease nipples.

Y-axis

Use the grease gun (with Standard nozzle) to

supply the specified grease (NSL) to the

grease nipples.

Move the axis left and right (X-axis) or back

and forth (Y-axis) manually and wipe away

excess grease.

53315-L6-10

Reattach the covers.

Reattach the anti grease splatter covers in

the reverse order of the removal procedures.

Cleaning the ball screws

Step 3

Wipe with cleaning cloth, etc.

X-axis

Y-axis

Wipe with cleaning cloth, etc.

Greasing the ball screws

Step 4

Grease nipple for

X-axis ball screw

Grease nipple (right) for

Y-axis ball screw

Grease nipple (left) for

Y-axis ball screw Y-axis

X-axis

Y-axis

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Periodic maintenance items

3.1.2 Cleaning and greasing the X, Y and W axes guides

Prepare for maintenance work.

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 easily

access to the X axis and Y axis

Clean the guides.

1. After moving each axis to the edge,

clean the whole guide with a lint-free

cloth that does not raise dust.

2. Move the axis to the opposite side and

wipe the opposite side guides (X-axis and

Y-axis).

53313-L6-00

NOTE

Wipe away thoroughly the old grease in the grooves of

the guide rails.

Apply grease to the guides.

1. X-axis

Use the grease gun to apply the

specified grease (NSL) to the X-axis guide

grease nipples.

The grease nipples are located behind

the head unit, 2 each on the right and

left (total of 4 positions). The grease

nipple includes 2 sizes. Attach the

standard or the bent type nozzle to the

grease gun and grease the X-axis guide.

53314-L6-00

2. Y1-axis and Y2-axis

Use the grease gun to apply the

specified grease (NSL) to the Y-axis guide

grease nipples. The grease nipples are

located on the front and back sides of

the slider on each Y-axis guide (total of 4

positions).

Attach the nozzle aligning with the angle

of the grease nipple.

53329-L6-00

CAUTION

Align the grease gun nozzle with the angle of the

grease nipple and push the nozzle straight to the nipple

when injecting grease from the bent type grease

nipple. If not aligned, the grease nipple may be

damaged or may come loose and fall off. Carefully

apply the grease.

Remove excess grease.

After moving the axis left and right (X-axis)

or back and forth (Y-axis) manually a few

times, wipe away excess grease.

Cleaning the guides

Step 2

Guide rail Wipe with cleaning cloth or paper towel.

Greasing the X-axis guide

Step 3-1

Grease nipple (small)

Grease nipple (large: located on head holder)

Greasing the Y-axis guide

Step 3-2

Grease nipple for

Y-axis guide

Grease nipple for Y-axis guide Total of 4 places