Operation BWP Issue 2.pdf - 第11页

Issue 2, Nov 14 11 Objectiv e BWP 5 – Insp ect condition of pr ocess hard ware Reference: Operator best working practices manual Prior to using any pro cess hardware it shou ld inspected to ensure it is fit for fun ction…

Issue 2, Nov 14

Objective OP 5 – Prepare the machine for production

Reference: Machine Operator manual, ProFlow best working practices manual

Preparing the machine for production involves a step-by-step sequence. Following the

correct sequence will ensure quick and trouble free product changeovers.

Preparation

Tick off each of the following items as you complete them:

 Whilst discussing the best method of preparing the printer with your instructor review

the set up procedures in your machine operator manual

Demonstration

Given a complete set of production hardware and using the operator manual as a guide,

setup the printer ready for production. Complete the steps in the following order and tick off

each item as you complete them:

 Log on

 Load an existing product file

 Setup tooling

If you are using squeegees …..

 Fit squeegees

 Perform squeegee height calibration

 Load a stencil

 Load print material manually or…

 Load print material using auto dispenser (if available)

If you are using ProFlow …..

 Fit ProFlow

 Load cassette (if applicable)

 Fill re-chargeable head (if applicable)

 Load stencil

 Prime ProFlow

Issue 2, Nov 14

Objective BWP 5 – Inspect condition of process hardware

Reference: Operator best working practices manual

Prior to using any process hardware it should inspected to ensure it is fit for function. i.e.

Clean and free from damage and it is the correct specification as defined by the process

design.

Failure to do this may result in machine error messages and print defects.

Preparation

Tick off each of the following items as you complete them:

 Review each process hardware section of the best working practices manual

Demonstration

Given a selection of process hardware and with reference to the BWP manual perform the

following actions. Tick off each one as you complete them:

 Select the appropriate hardware for the product file to be printed.

 Inspect the hardware to ensure it is fit for function

 Load the hardware in the machine

Issue 2, Nov 14

Objective OP 6 – Run printer in production

Reference: Machine Operator manual

The first few boards printed in the production run will highlight any problems with the setup

of the printer or process hardware. It is important to observe carefully at this stage any

problems that may lead to error messages or defective prints.

Preparation

Tick off each of the following items as you complete them:

By following the procedures in the operator manual and with assistance from your

instructor

 Set a batch limit and zero batch count

 Perform a manual paste knead operation

Demonstration

Having completed the preparation phase, perform the following tasks:

 Cycle at least ten boards through the printer

 Ensure that there are no machine error messages

 Ensure that printed boards are free from print defects

Questions

Complete these sentences:

Q1. When the squeegee / ProFlow print stroke is from front to back monitor the stencil to

ensure that __________________________.

Q2. When the squeegee print stroke is from back to front ensure that ____________