TRS Advanced WB Intel Issue 02 - 第127页

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 th…

TRS Advanced Maintenance

126

Issue 2, Nov 14

Using Tooling Setup Page:

• Visually check the vacuum adaptor plate before fitting for any damage or

contamination

• Fit vacuum adaptor plate and check that is sits against the vacuum seal with no

rocking

• Visually chack the tooling before fitting for any damage or contamination

• Check that tooling is fastened correctly and no rocking can be observed in the tooling

base

• Check with Z-Lock off that all towers move freely in Z

• With Z-Lock ON check that no towers move in Z without considerable force

• Visual check only that all tower caps rotate and return to centre

Warning; Small movements only: over stressing this system will cause damage

Z-Lock Pressure

Aim: To measure the force needed to overcome the Z-Lock pressure

Method: In Diagnostics drive table to Vision Height and lock the Z-Lock in position. Do not

set TRP position. Drive the table to Print Reference Height. Position the Co-Planarity Bars

over the tooling.

Jog the table down using jog buttons until a gap of 3mm to 5mm can be observed between

the bottom of the force meter and the top of the Bars when positioned over the tower.

Apply pressure until the tower moves and the force meter contacts the bars.

Take reading and record in to table below, take 4 reading per tower.

Note: Looking for more than 2Kg per tower. Spring Pressure

Aim: To measure the spring force for per tower, looking for consistency.

Method: In Diagnostics drive table to vision height: Do not set TRP position.

Turn Z-Lock off and make sure the towers move in Z height.

Drive table to print reference height

Position the Co-Planarity bars over the tooling

Jog the table down using jog buttons until a gap of 3mm to 5mm can be observed between

the bottom of the force meter and the top of the bars when positioned over the tower

Apply pressure until the tower moves and the force meter contacts the bars

Take reading and record in to table

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)