10-0803 nur fresco hiq 3200 w-pressing assembly...

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PRODUCT:

NUR Fresco HiQ 3200

PART/ASSEMBLY:

W-Pressing Assembly

FCO KIT P/N: 10-0803

ISSUE DATE:

10-Sep-02

DESCRIPTION OF CHANGE:

Installation of an assembly that will exert pressure on the top W roller thus creating a uniform and constant pressure between and throughout both top and lower W rollers.

APPLICABLE FOR S/N:

NUR Fresco HiQ 3200 Up to # 14189

SOFTWARE AFFECTED: YES NO

IMPLEMENTATION: ON REQUEST IMMEDIATE NEXT CALL ON FAILURE/COMPLAINT

PREPARED BY:

Alex Davidson

TYPE OF CHANGE: MANDATORY CONDITIONAL COST RELIABILITY PRODUCTION FUNCTIONALITY MAINTENANCE

MATERIAL DISPOSITION: N/A USE AS SPARE DISCARD ALL DISCARD SELECTIVELY (refer to Mat’l Disposition) SEND BACK FOR REWORK

PROJECT MANAGER: SIGNATURE/DATE

ENGINEERING MANAGER: SIGNATURE/DATE

ICS MANAGER: SIGNATURE/DATE

Read this document carefully before implementing the Upgrade!

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International Customer Support

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Table of Contents

1. General .......................................................................................................................... 3

2. Reason for Change........................................................................................................ 3

3. Estimated Installation Time .......................................................................................... 3

4. Tools Required:............................................................................................................. 3

5. Implementation ............................................................................................................. 3

6. Installation..................................................................................................................... 4

7. Adjusting..................................................................................................................... 14

8. Logistics...................................................................................................................... 16

9. Appendix W Pressing Assembly ................................................................................ 16

Table of Figures

Figure 1: Indicator and Magnetic Base on X-axis Beam...................................................... 5

Figure 2: New Pressing Assembly Parts. .............................................................................. 5

Figure 3: Support Arm On Old Assembly. ........................................................................... 6

Figure 4: Pressing Assembly Base........................................................................................ 6

Figure 5: Supporting brackets. .............................................................................................. 7

Figure 6: Securing the Side Brackets into New Assembly Unit. .......................................... 8

Figure 7: Mounting New Side Brackets into Support Brackets............................................ 8

Figure 8: Arm Tower Fitted into Base Assembly. ................................................................ 9

Figure 9: Adjustable Spring. ............................................................................................... 11

Figure 10: Support Arm into Base Assembly. .................................................................... 12

Figure 11: Installing the Adjustable Arm. .......................................................................... 12

Figure 12: Vacuum Plate Support Arm. ............................................................................. 12

Figure 13: Vacuum Tubes and Hose................................................................................... 13

Figure 14: Full Pressing Assembly Frontal View................................................................. 9

Figure 15: Full Pressing Assembly Top View.................................................................... 10

Figure 16: Full Pressing Assembly Side View. .................................................................... 8

Figure 17: Dynamometer and Shims. ................................................................................. 15

Figure 18: Push-Pull Test at Five Points............................................................................. 15


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1. General

This Field Change Order details the installation of the W Pressing Assembly.

2. Reason for Change

The new assembly will exert pressure on the top roller thus creating a uniform and constant

pressure between and throughout both top and lower W axis rollers. Therefore, the

installation of the W-Pressing Assembly will prevent substrate deformation from occurring

and will improve substrate leading.

3. Estimated Installation Time

Two hours.

4. Tools Required:

• Push-Pull Instrument.

• Metal saw.

• Circlips Pliers.

• Silicon Paste.

• Calibrating tool: Indicator, arms, and magnetic base.

• Metal file.

• Wrench and Allen keys.

5. Implementation

Implement this FCO on printers up to the following serial numbers:

NUR Fresco HiQ 3200 # 14189.


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6. Installation

6.1 Before you start

Before you start, perform the followings:

1. Verify that the Vacuum Plate is in cold state then use the indicator, arm and magnetic base from the calibration kit to indicate the position of the vacuum plate as follow:

• Position the magnetic base is on center of the X-axis beam (refer to Figure 1).

• Position the indicator needle on the center of the vacuum plate (vertically and horizontally).

• Adjust the indicator to read zero (refer to Figure 1).

2. Disconnect the vacuum hose from the vacuum metal tube on the back of the vacuum plate (refer to Figure 16).

3. To ease the assembly’s installation, disassemble the tower arm from the base assembly as follow:

• Unscrew and remove the locking nut in the front of base assembly (refer to Figure 2 and Appendix A).

• Remove the M12 hex screw from the back of the base assembly then remove the washer then the spring then another washer (refer to Figure 2).

• Remove from both ends of pressing shaft the circlip rings (refer to Figure 9).

• Extract the pressing shaft into base assembly then remove washers at both ends (refer to Figure 2 and Figure 9).

• Dismount the tower from the base assembly and place it in safe place, you will use it in later steps.

Note: Refer to Appendix A throughout this procedure in addition to the graphics

included in this FCO.


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Indicator to "0"

Needle on Center of Vacuum Plate

Magnetic Base on X-axis Beam

Figure 1: Indicator and Magnetic Base on X-axis Beam.

Washer

Tower Arm

Pressing Shaft

Circlip

Full Base Assembly

Roller Axis From Older Assy Unit

Locking Nut

M12 Hex Screw

Spring

Rubber Roller(From old Assy)

Two Supporting Side Brackets

18mm Shaft

Figure 2: New Pressing Assembly Parts.


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6.2 Removal of Existing Pressing Assembly:

1. Use a 10 mm Allen key to unscrew the two M8 screws of the bracket, on the back of the Vacuum Plate (VP), that hold the adjustable arm. Do not discard the bracket (refer to Figure 3).

2. Use the 10mm Allen key to unscrew the M8 screw holding the support arm bearing (refer to Figure 3).

3. Use a 6 mm Allen key to unscrew the M8 screws at the base of the current pressing assembly (refer to Figure 4). (Machines up to # 14105 have four screws while machine from # 14105 have only six screws).

4. Use an Allen key to unscrew the two screws of the supporting brackets (on the substrate output tray, do not discard), on each side of the pressing assembly then lift the pressing assembly out of machine's chassis and discard (refer to Figure 1).

Bracket on Back of VP

Support Arm M8 Screw

Figure 3: Support Arm On Old Assembly.

Six M8 ScrewsCircled

Two Cap Screws On Each Side

Figure 4: Pressing Assembly Base.


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6.3 Mounting of New Pressing Assembly Base:

Note: Insert in each screw a spring and flat washer when necessary (from kit).

1. Use a 6 mm Allen key and a 13 mm wrench (to tighten the upper hexagonal screw) to screw in the two screws that secure the two new side brackets (from kit) into the support brackets (from old assembly) but do not tighten (refer to Figure 6 and Figure 8).

2. Slide the male rod from support brackets (from old assy) into the female middle hinge of the output tray (refer to Figure 7).

3. Position the new W pressing assy base on the chassis beam in the same place of the old assy.

4. Use a 6 mm Allen key to screw in the six M8 screws (from kit) of the new pressing assembly to the chassis' beam (refer to Figure 4).

5. Use an Allen key to screw in the two cap screws (insert washers), on each side of the brackets (from kit) into both sides of the pressing assembly's base then tighten completely the screws from step 1 (refer to Figure 6).

Figure 5: Supporting brackets.


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Two Cap Screws Circled

Side Bracket

13mm Screw Behind MiddleHinge

Socket ScrewCircled

Support Bracket Male Rod from Old Assembly

ProtectivePlate Hole

Side BracketFrom Kit

Middle Hinge

Output Tray

Socket Screws

Figure 6: Securing the Side Brackets into New Assembly Unit. Figure 7: Mounting New Side Brackets into Support Brackets.

Use 13 mm Wrench to Tighten Circled Socket Screw

Figure 8: Full Pressing Assembly Side View.


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6.4 Mounting of Tower Arm Assembly:

Reassemble the Tower Arm, removed in step 6.1, back on the pressing assembly base as follows:

1. Slide the tower arm into the base assembly and mount as follows (refer to Figure 9 and Appendix A):

• Insert the pressing shaft (removed before) into base assembly then insert washers at both ends (refer to Figure 2 and Figure 9).

• Push in the pressing shaft through the holes of base assembly and tower arm, insert a washer, and then push through. Secure both ends of shaft with circlip rings (refer to Figure 9).

2. Insert into the M12 hex screw a washer then the spring then another washer (all removed before) (refer to Figure 2).

3. Place the locking nut (removed before) in front of base assembly (pressing roller side) and insert the M12 hex screw from step above into the assembly. Tighten the bolt by hand (refer to Figure 2, Figure 12, and Appendix A).

4. Use a 10 mm wrench to apply four full turns to tighten the spring so that the distance between the two washers will be 44mm (refer to Figure 11, Figure 12, and Appendix A).

Tower Arm

Base Assembly

Pressing Shaft With Circlip

Washers

Bracket to VP Two M8 Screws

Locking Nut

Figure 9: Arm Tower Fitted into Base Assembly. Figure 10: Full Pressing Assembly Frontal View.


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Apply Four Turns on M12

44mm

Support Arm into Slot of Pressure Assy

Bracket to VP

Figure 11: Full Pressing Assembly Top View


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Spring

Spring Contraction 44 mm

Side Brackets Cap Screws Circled

Figure 12: Adjustable Spring.


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6.5 Mounting of the Vacuum Plate Arm Support:

Use the 18mm shaft (from kit, refer to Figure 2) and the bracket (from old assembly removed in Step 1 Page 6) to secure the arm support to the new Pressing Assembly as follows:

1. Use a 10mm Allen key to screw the two M8 screws to secure the bracket (from kit) to the Vacuum Plate (refer to Figure 15 and Figure 10).

2. Insert the 18mm shaft into the hole of new pressing assembly through the support arm bearing and out of the support arm (refer to Figure 15, Figure 14, Figure 11, and Appendix A).

3. Use circlip pliers to install, at each end of the 18mm shaft (outer ends of shaft) two circlips to secure it (refer to Figure 9 and Appendix A).

Support ArmShaft Circlip

Bracket to Vacuum Plate

Shaft into Bearing into Slot

M8 Screws Circled

Figure 13: Support Arm into Base Assembly. Figure 14: Installing the Adjustable Arm.

Adjustable Arm

Attachment Bracket To Vacuum Plate Side

To Base Assembly

Shaft

Circlip

M 8 Screws

Figure 15: Vacuum Plate Support Arm.


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6.6 Resizing and Re-installing the Elbow Vacuum Metal Tube:

You must reduce the length of the vacuum tube as follows:

1. Use a metal saw to saw off the vacuum metal tube to reduce it to 60 mm from the T-intersection (refer to Figure 16).

2. Use the metal file to smoothen the tube.

3. Apply silicon paste on the elbow tube (from kit).

4. Insert the vacuum elbow tube (from kit) into the vacuum metal tube (refer to Figure 16).

5. Reconnect the vacuum hose from metal tube (refer to Figure 16).

60 mm

Elbow Tube(From Kit)

Hose

Figure 16: Vacuum Tubes and Hose.


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7. Adjusting

You must perform the Push-Pull test, to ensure that the pressure between the two W-rollers is conformed to requirements, as follows.

1. Remove all Teflon tapes from the W-rollers.

2. In the Pneumatic panel, set the air pressure regulator to 3.5 bars for the W-pressing roller.

3. Use brass shim (from kit) whose dimensions are: Width = 70 mm; Length = 200 mm; Thickness = 0.06 mm.

4. Perform the test at five equidistant points in between the W-rollers; use a marker to mark the five points on the output try (refer to Figure 18).

5. Close the w-rollers and activate the W rollers forward via the Galil terminal, use the following commands:

6. Let the shim be caught between the rollers and as the shim is being pulled in by the rollers, resist it statically and record the lowest and highest readings for each point in Table 2 below.

Note: You must let the rollers complete four revolutions for each test point (refer to Figure 17).

Warning: Be very careful not to catch your fingers between the rollers, in emergency case hit the emergency button.

7. Record the Average reading as follows: Average reading = High + Low 2 (refer to Table 1).

8. All Average values in the table should be between the Highest (Average Value) and 50% of that same value (refer to Table 1). If not, adjust the W rollers pressure regulator and/or the tension on the pressing assembly spring (refer to Figure 11 and Figure 12).

Command Description SHW Enable driver JGW= 20,000 Jog speed of axis – value less than ±50,000 [counts/sec] (+/- define the

direction of rotation. BGW Begin motion of axis STW Stop motion of axis MOW Disable driver


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Note: You can increase the pressure (at both ends of W-pressing roller) by

adjusting the regulator and by adjusting the spring to increase pressure in the

center of the W-pressing roller. Repeat steps 1 through 8, if necessary, to obtain

the required readings.

Caution: Applying too much pressure on the center may damage the W-pressing

roller. Therefore, the spring tension, between the two washers, should not exceed

42 mm (refer to Figure 11 and Figure 12).

Record Highest and Lowest Readings

Figure 17: Dynamometer (Push –Pull) and Shims.

1 2 43 5

Figure 18: Push-Pull Test at Five Points.


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Table 1: Push-Pull Sample Data.

Readings 1 2 3 4 5

Low 2 8 5 7.5 2.5

High 5 9 8 9.5 4.5

Average= High +Low

2

3.5

8.5

6.5

8.5

3.5

Table 2: Push Pull Data.

Readings 1 2 3 4 5

Low

High

Average= High +Low

2

8. Logistics

W Pressing FCO Kit PN: 10-0803 P/N Description Qty

10-0790 W Pressing Assy 1 10-0804 Push Pull Jig For W Pressing 1

17-0650 Vacuum Tube Elbow 1

FC 10-0803 W Pressing FCO 1

9. Appendix W Pressing Assembly

W-Pressing Assembly DRW # 10-0790

D

E

F

C

1 2 3 4

B

A

321 5

C

D

4 6 7 8

A

B

8765

F

E

W PRESS

SIZE.

A

W PRESS SYSTEM

10-0790DO NOT SCALE DRAWING

REV.

NUR-FRESCOTITLE:

DWG NO.

SCALE:1:2.5 SHEET 2 OF 2 A3

324REF.A

A

B B

496.47REF.

SECTION A-ASCALE 1 : 2.7

9

?

15

6

SECTION B-BSCALE 1 : 2.7

7

5

1617 12

13

14

4

3

10-0803 nur fresco hiq 3200 w-pressing assembly...

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