TRS Advanced WB Intel Issue 02.pdf - 第128页

TRS Advanced Maintenance 128 Issue 2, Nov 14 Pitch Adjustment: Follow the procedure from Pre-Production setup “Pitch and Level Adjustment” Outs tandi ng  I s s ue Probabl e  Ca u se( s) S u g g e st e d  Action TRA  …

Issue 2, Nov 14

TRS Advanced Maintenance

127

Board Stop and Surround Installation and Setup

Board Stop Setup

‐ Complete board stop setup

‐ Checking the repeatability of the board stop setting to the tower pass through the tray

without contacting the side walls.

Soft Lift/Land Setup

‐ Does the movement and distance offer a smooth/slow approach to pick up the

substrates from the tray?

‐ Does the movement and distance offer a smooth/slow approach to lowering the

package into the tray?

‐ When vacuum is applied does this course any adverse effects to the pickup and

lowering of the substrates?

Surround Installation

‐ Visually check that surround is clean and no damage can be found on top or bottom

plate

‐ Check that the surround has been fitted correct, that all screws and dowels are located

in the bearings

‐ With active surround fitted, Z-Lock off and label at vision height do all towers sit above

the active surround by more than 100µm but no more than 1mm?

TRS Advanced Maintenance

128

Issue 2, Nov 14

Pitch Adjustment: Follow the procedure from Pre-Production setup “Pitch and Level

Adjustment”

OutstandingIssue ProbableCause(s) SuggestedAction

TRAjointsloos ening.

Wor kthroughprocedures3&4.Ifthe

problemis notresolvedorworsens,

contactDEKcustomersupport.

Railcapnotcorrectlysupported.

Railcappadsnotplanar.

Gapbecomesirregularor

asymmetricalwithload

applied.

Fro ntorreargapbecom es

muchlarg eraftertooling 

changeover.

Pressuredistribution

isnot

appropriateforcurrenttoolloading .

Performdetailedindependentsurface

ins pections ofbothpartsandsumlocal

deviations.Comparetoprocesslimits.

ContactDEKcustomersupporttodiscuss

specifictooling requirements.

Gapincreasesafterextended

machineoperation.

SeeTRSmodulesetupdocum entationfor

ins tructions onhowtocheckandreset

therail

ca ptobaseheight.

TRPstand‐offscrewsset

correctlyonsurfacetablebut

willnotlevelonfourpoints

torailcap.

SupportsarenotplanarandtheTRPis 

beingdistortedbythetwisting

momentapplied.

Wor kthroughprocedures3&4.

Gapistooincons is tenteven

whennoloadisappliedto

anyparts.

TRPandSurroundplatesurfacesare

irregularrelativetoeac hother.

(Objective 43, Page 123)

Issue 2, Nov 14

TRS Advanced Maintenance

129

Surround plate setup

Note

setup, soft lift land and pitch adjustment checks must have been completed

before this stage.

• If not already done loosen all fasteners that hold the top and bottom surround plate to the

bearings. (Screw Thread engagement still needed but both plates must be free to move)

• With the TRP in home position and table at transport height

• Load a tray with substrates

• Drive TRP over rails

• Apply TRP pressure

• Toggle vacuum on

• Drive table to Vision height

• Check that the four TRP height adjustment screws are not in contact with the rail cap and

that the TRP is flat against the surround.

• Toggle on the Z lock

• Toggle on the active surround

• Drive TRP to home position

• All substrates should be sat within the surround and surround referencing the substrates into

the top left corner of the top surround plate.

• Using your finger check for movement in all substrates in X and Y direction.

• If any movement is found manual adjustment is needed to the position of the top surround plate.

• After observing the movement in the substrates determine the movement needed in the

to apply equal pressure to the side walls of each substrate in each position.

• With one hand manually apply pressure to the top surround plate moving it in the direction desir

• With you other hand check for movement across all substrates and continue to apply

pressure until movement has been removed.

• Visually check that no gaps can be observed between the substrates sidewalls and surround

plates top and bottom

• Whilst still applying force to the top surround plate; In a circular motion tighten all surround

plate screws, this doesn’t need to be over tightened and should be equal to 1.8Nm