Misassembled Parts

Is the part :

Difficult to see during assembly?

Difficult to assemble?

Difficult to see after assembly?

Difficult to differentiate between pre

and post assembly?

Lacking guides or fixtures for proper

assembly or proper alignment?

Can anything be done to resolve this in design of product/process?

(guides, fixtures, automation)

Can the part be combined with another part?

Can the part be eliminated?

What can be done to detect whether the part has been misassembled?

Detection device - torque counter,

photoelectric eye, limit switch

Lock out subsequent operation if part is misassembled.

Lock out device - limit switch,

conductivity sensor...

Implement operator instructions,

visual aids and training as minimum

requirement

YES

NO

NO

Implement Error Proofing

(process/design change and/or

detect/lock out device)

Verify results

YES

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The Juran Trilogy	The Deming PDCA Cycle	QMS Implementation	FMEA Information	APQP Information
Auditing Information	8-D Problem Solving	Statistics	Error Proofing (Poka Yoke)	Brainstorming
Identifying Waste	Pull Systems	Lead Time Reduction	Planned Maintenance	Quick Setup
Discovering Change	Process Capability - Cp vs. Cpk	Histogram Animation	Process Loop Animation	Taguchi Loss Function
		Fishbone / Cause and Effects Animation

All Y'All Come Back Now, Y' Hear?

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