This document discusses 4M change, which refers to changes in man, machine, material, and method. It provides examples of types of changes that fall under each category and describes how 4M changes are classified as either planned or unplanned. The purposes of monitoring 4M changes are to closely track their effects on processes and products. Key criteria for evaluating 4M changes include setting up containment and traceability measures to monitor production and trace any potential problems back to their source.

1. 4M CHANGE
Presented By : Hardil Shah

2. What is 4M change?
1. MAN
2. MACHINE
3. MATERIAL
4. METHOD

3. Purpose of 4M Change
• To closely monitor process and effect of
change on product.

4. Man
• If new Person join.
• Person is on leave for more than 1 month.
• Shift time extended
• If person is sick.
Machine
• Machine Change.
• Engineering change in Machine.
• Preventive Maintenance planned.
• Break down maintenance done on machine.
• Fixture change in machine.
• Removing or adding external process on machine

5. Material
• New Supplier or change current supplier
• New Material for approval source of trial.
• Same Supplier but mixing combination change.
Method
• Any Deviation form Process control (Process Parameter Change)
• Process Sequence Change.
• Additional process implemented.
• New technology implemented

6. Type of 4M change
1. Planned (Permanent)
2. Un Planned (Temporary)

7. Planned (Permanent) Type Change
• The Change that is done due to some
unavoidable reason.
Unplanned (Temporary) Type Change
• The change that discussed before change and
pre planned.

8. Criteria of 4M change
• Set up
• Containment
• Retro active

9. Setup
• First Part Approval report
Containment
• To Closely monitor running production
Retroactive
• To trace back from where problem arise in
production.

10. Criteria : 4 M Change
MAN MATERIAL METHOD MACHINE
Extended shift working (
over 2 shifts ) -
unplanned
Source of supply
change for controlled
item- planned
Any deviation from Process control
standard - planned
Machine Change - planned
Manpower change
( regular)
Different spec /
Grade of incoming
controlled material
from approved
source for trials -
planned
Process sequence change -Unplanned Breakdown Maint. Which
affects process / quality of
product - unplanned
Person left shift job due
to sickness
Material
Composition change-
Planned
New technology introduction - planned Fixture change - such as enamel
applicator - planned
New joinee - planned Material
Combination Change-
Planned
Additional process adopted - planned Preventive maintanence. -
planned
On Leave For More than
one Month
Inspection equipment change - planned

11. Traceability
• Traceability or unique Identification is very
important for further assessment of product.
• To check product deforms after time interval.