YS12P_YS12F_Mainte_E - 第76页

3-11 3 Periodic maintenance items 2. Monthly inspection 2.1 Cleaning the nozzle air path Clean the nozzle air path if a nozzle clogging is found in the daily inspection or every month. e 1 Remo ve the nozzle from the hea…

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Periodic maintenance items

1.4 Checking the board clamp condition and operation

1.4.1 Checking the board clamp condition

Check the board clamp condition at least once a week when a production type is changed or even when a

production type change is not performed.

1. When the board is clamped, no backlash is found.

2. There is no clearance between the board and the

board hold plate when the board clamp is raised.

3. The board is flush with the upper surface of the

conveyor rails when the board clamp is raised.

4. The board clamp unit moves smoothly.

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NOTE

If either of 1 to 3 or all of 1 to 3 are result in failure,

check that the board hold plate, the push-up pin

quantity and positions are correct. If the mounting

screws of the board hold plate are loosened, tighten

them. If 4 is result in failure, check the clamp unit

operation with the procedure on the next.

1.4.2 Checking the board clamp operation

Prepare for maintenance work.

1. Press the emergency stop button and

then open the machine safety cover.

2. In case the specification has a cart,

remove the cart for easy access to the

conveyor.

Move the clamp board up.

1. While there is no board in the conveyor,

press the [Board Clamp] button in the

[Unit] – [Conveyor] screen.

2. Visually check the clamp board moves

up smoothly without deviation.

Move the clamp board down.

1. Press the [Board Clamp] button again to

move the clamp board down.

2. Visually check the clamp board moves

down smoothly without deviation.

Repeat the clamp operation.

Repeat Step 2 and 3 to check the clamp

operation is stable.

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NOTE

If an error is found in board clamp operation, contact

YAMAHA sales representative.

Checking the clamp condition

Check that no gap between the board

and board hold plate is found.

Board is flush with the conveyor rails.

Clamp and unclamp the

board to check the

movement

Checking the board clamp operation

Step 2-4

[Board Clamp] button

Shall move up and down smoothly

Shall be no deviation between

right and left

Board clamp plate

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Periodic maintenance items

2. Monthly inspection

2.1 Cleaning the nozzle air path

Clean the nozzle air path if a nozzle clogging is found in the daily inspection or every month.

Remove the nozzle from the head.

1. Press the emergency stop button and

then open the machine safety cover.

2. Remove the nozzle from the head. If the

machine is equipped with the nozzle

station, press the [Nozzle Stn Shutter]

button to open the nozzle station shutter

and remove the nozzle.

Blow air through the nozzle.

Using an air blow tool, blow air through the

nozzle from the nozzle tip and then from the

other end.

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NOTE

If there are dust deposits in the nozzle, perform steps 3

and 4.

Clean the nozzle hole.

Pass the nozzle cleaning wire through the

nozzle hole and clean the nozzle hole. While

holding both ends of the wire with fingers or

using a custom handle (option) shown in the

figure on the right, gently move the nozzle

back and forth.

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Blow air onto the nozzle tip again.

After removing the cleaning wire, blow air

through the nozzle with the air blow tool, just

as in step 2.

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Return the nozzle to its original

head.

NOTE

If removed nozzles from the nozzle station, return them

to the nozzle storage positions.

Air blow

Step 2

Air tube (black)

Air blow tool

(option)

Air tube (orange) connected to

air supply port

Insert the

nozzle tip into

the air tube and

blow air.

Blow air from the

nozzle attachment

side.

Cleaning a nozzle

Step 3

Custom

handle

(option)

Nozzle

Nozzle cleaning wire

Air blow

Step 4

NozzleAir blow tool (option)

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Periodic maintenance items

2.2 Inspecting ball screws and guides of each axis

Inspect the ball screws and the guides on the X, Y, W, and push-up axes. Checkpoints are listed below.

An anti grease splatter cover is attached to the X and Y axes. Remove these covers when inspecting the ball

screws and guides.

TIP

See "3.1 Cleaning and greasing the X and Y axis" described later on for detaching or attaching the anti grease

splatter cover.

TIP

See "3.1 Cleaning and greasing the X and Y axis", "3.2 Cleaning and greasing the push-up axis (PU axis)" and "5.3

Cleaning and lubricating the W-axis" in this chapter, and "Chapter 5 Lubrication points and schedule" for positions of

ball screws and guides of each axis.

1. Any foreign objects adhering to the ball screws and guides?

Check if any fallen chips have adhered to the ball screws and/or guides.

2. Do the ball screws and 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. Check for any abnormal sounds by pressing the X-axis or Y-axis back and forth

manually.

Countermeasures

1. Ball screws and 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 "3.1 Cleaning and greasing the X and Y axis", "3.2 Cleaning and greasing the push-up axis (PU

axis)" and "5.3 Cleaning and lubricating the W-axis" in this chapter described later on.

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

steps 1 and 2.

WORNING

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.