YSM10_Mainte_E.pdf - 第77页

3-10 3 Periodic maintenance items 2.1 X-axis T his section explains the X-axis inspection, cleaning, and lubrication procedures. For details regarding lubrication points and the lubrication condition, see "Chapter 5…

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Periodic maintenance items

2. Monthly inspection

This section mainly describes the procedures of inspecting, cleaning and lubricating the X, Y axes ball screw

and the guide. The inspection items and cautions of X, Y axes are given below.

Inspection items

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. Push the X-axis or Y-axis manually to check that they move smoothly and no abnormal

sounds are heard.

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.

Cautions

WARNING

THE HEAD UNIT OF THE MACHINE CONTAINS PARTS GENERATING STRONG MAGNETIC FIELDS. GREAT CARE SHOULD BE

TAKEN WHEN A PART OF YOUR BODY IS PUT INSIDE THE MACHINE FOR THE MAINTENANCE WORK. CAUTIONS REGARDING

FERROMAGNETIC FIELDS ARE DESCRIBED IN THE SECTION, "SAFETY INSTRUCTIONS", AT THE BEGINNING OF THIS

DOCUMENT. ALWAYS THOROUGHLY READ THIS SECTION TO FULLY UNDERSTAND ITS CONTENTS.

CAUTION

If abnormal noise is emitted from the ball screw or linear guide of each axis ball screw or linear guide, then contact

our sales representative for assistance. Disassembly and cleaning of the ball screw or linear guide by the user will void

the warranty.

CAUTION

When performing the cleaning and greasing work, use square cloth to prevent parts from being lost.

CAUTION

When handling grease, read the safety precautions stated in "Safety instructions" and "2.3.2 Lubricating tools and

grease" in Chapter 1.

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Periodic maintenance items

2.1 X-axis

This section explains the X-axis inspection, cleaning, and lubrication procedures. For details regarding

lubrication points and the lubrication condition, see "Chapter 5 Lubrication points and schedule". The user

must provide the grease gun (standard nozzle) and the prescribed grease (NSL).

NOTE

The procedure and the lubrication points of HM head unit are described as example. Those of HM5 head unit are also the same.

2.1.1 Cleaning and lubricating the X-axis ball screw

Prepare for the work.

1. Press the emergency stop button to open

the machine safety cover.

2. Grasp the carrying handle to move the

head unit forward.

Place a square cloth under the head unit

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Remove the anti grease splatter

cover.

1. Remove 2 mounting screws on the left

side of the anti grease splatter cover with

a phillips screwdriver.

2. Loosen 2 mounting screws on the right

side of the cover. It is not necessary to

remover them.

Grasp the carrying handle to move the

head to the right. Pull out the anti grease

splatter cover toward the left to remove it.

TIP

attaching the X-axis ant grease splatter cover by

reversing the above removal procedure.

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Clean the ball screws.

1. Move the head unit to one end.

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 unit to the opposite end,

then wipe the opposite-side ball screw.

NOTE

When cleaning the ball screw, carefully clean its

groove area as well. Be sure that the cloth, etc., being

used to clean the ball screw does not produce lint, etc.

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Removing anti grease splatter cover

Step 2

Anti grease splatter cover

Cover mounting screws

Carrying handle

Step 3

Cleaning the ball screw

Cloth

Ball screw

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Periodic maintenance items

Inject the grease.

1. As shown in the figure on the right, move

the head unit to the right to see the

grease nipple.

2. The grease nipple at the center of those

aligned at 3 locations is the ball screw

nipple. Use a grease gun (standard type)

to inject the prescribed grease at the

grease nipple.

NOTE

Inject until the grease begins to seep out from the gap.

Wipe off the excess grease.

1. Grasp the carrying handle and move the

head unit to the left.

2. Wipe all excess grease from the ball

screw and the ball screw end faces.

3. Move the head unit to the opposite end

and wipe all excess grease from the

opposite-end ball screw and the ball

screw end faces.

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Perform a warm-up.

1. Remove the square cloth.

2. Reattach the anti grease splatter cover.

3. Close the machine safety cover and

cancel the emergency stop.

4. Press the [Warm Up] button on the

"Setup" screen to open the "Warm Up"

screen. Perform the warm-up operation

for approx. 8 minutes.

Check the grease condition.

1. After stopping the warm-up, press the

emergency stop button to open the

machine safety cover.

2. Remove the anti grease splatter cover

and wipe off grease which has collected

on the ball screw and the ball screw end

faces.

CAUTION

Repeat Steps 6 and 7 until grease accumulations no

longer occur. Beginning production with grease

accumulations present could cause the grease to

spatter.

Attach the anti grease splatter

cover.

Step 4

Grease nipple (center)

Grease gun (standard type)

Applying grease

Step 5

Wiping off the excess grease

Excess grease