Page 131 - TPM A Route to World-Class Performance

110 TPM-A Route to World-Class Performance

Figure 5.30 shows the three steps towards a cumulative reduction of 75 per
cent to 95 per cent in set-up time in the SMED system. A graphical representation
of the reductions achieved is shown in Figure 5.31.
TPM develops six conceptual steps for analysing adjustment operations.
1 Purpose What function is apparently served by adjustment?
2 Current rationale Why is adjustment needed at present?
3 Method How is the adjustment performed?

*

-A On B- A On B

Set-up reduced by 50% Set-up reduced by another 50%
Step 3: Minimize external activities and
continue reducing internal activities

A On B

Figuve 5.30 SMED steps to reducing set-up time

1.5

I I I I
0 ’ I I b
1 2 3 4 5 6
Application time (months)
Figure 5.31 Set-up times veduced significantly by SMED approach