YSM40R_Mainte_E.pdf - 第87页

3-17 3 Periodic maintenance items 2.1 X-Y axis (4-beam type) T his section describes the inspection, cleaning, and lubrication procedures for 4-beam type machines. F or details on the lubrication points and schedule, see…

3-16

Periodic maintenance items

2. Monthly maintenance

This section describes the procedures for inspecting, cleaning, and lubricating the X-axis and Y-axis ball

screws, guides, and linear scales. The inspection items and cautions 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. Then check for any abnormal sounds while pressing the X-axis manually.

4. Are the linear scales dirty?

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 referring to “Cleaning and lubrication” described later on.

3. Contact YAMAHA sales representatives when abnormal sounds occur even after trying the countermeasures in the

above steps 1 and 2.

4. Clean the linear scales referring to the “Cleaning” described later on.

Cautions

WARNING

THIS 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, contact

YAMAHA sales representative. 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 or entering the

Y-axis linear part.

CAUTION

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

grease" in Chapter 1.

3-17

Periodic maintenance items

2.1 X-Y axis (4-beam type)

This section describes the inspection, cleaning, and lubrication procedures for 4-beam type machines. For

details on the lubrication points and schedule, see "Chapter 5 Lubricating points". Prepare grease guns

(standard nozzle and bent nozzle types) and the specified grease (NSL).

2.1.1 Cleaning/greasing X-axis ball screw (4-beam type)

Prepare for work.

1. Remove all items sensitive to magnetic fields such as wristwatches and magnetic ID cards.

2. Press the emergency stop button and then open the machine safety cover.

3. Use the CLAMP ON/OFF switch to lower the feeder exchange carriage and detach it.

4. Place a square cloth on each Y-axis linear guide and push-up plate.

Detach the grease spattering

prevention cover.

Detach the X-axis grease spatter prevention

cover.

1. Loosen mounting screws for grease

spattering prevention cover (motor side)

with Phillips screwdriver.

2. Move the head unit to the motor side.

3. Remove mounting screws for grease

spattering prevention cover at the side

opposite to motor side with Phillips

screwdriver. Then pull out the grease

spattering prevention cover.

53312-N9-00

TIP

Reattach the X-axis grease spatter prevention cover by

reversing the above removal procedure.

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

and wipe the opposite-side ball screw.

53313-N9-00

NOTE

When cleaning the ball screw, carefully clean its

groove area as well. After cleaning, make sure that no

dust, lint or debris remains on the ball screw.

Detaching grease spattering prevention cover

Step 2

Grease spattering prevention cover

Cover mounting screwsCover mounting screws (motor side)

Cleaning the ball screw

Step 3

Lint-free cloth

Ball screw

3-18

Periodic maintenance items

Apply grease.

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

head unit manually to a position where

the grease nipple is visible through the

access window.

2. Use a grease gun (30° bent type) to

inject the prescribed grease at the

grease nipple.

53314-N9-00

NOTE

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

Wipe off the excess grease.

1. Move the head unit to one end.

2. Wipe off excess grease from the ball

screw and its end face.

3. Move the head unit to the opposite end

and wipe off excess grease from the ball

screw and its end face on the opposite

side.

53315-N9-00

Perform a warm-up.

1. Remove the square cloth.

2. Reattach the spatter prevention cover.

3. Close the machine safety cover, set the

feeder exchange carriage, and cancel

emergency stop.

4. Open the Warm-up screen, and perform

warm-up operation for about 8 minutes.

Check the grease condition.

1. After warm-up is finished, press the

emergency stop button and then remove

the grease spattering prevention cover.

2. Wipe off the grease which has collected

on the ball screw and its 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.

Reattach the grease spattering

prevention cover.

Applying grease

Step 4

Grease nipple

Grease gun (30° bent type)

Wiping off the excess grease

Step 5

Excess grease